Scientific Research Corporation_PHL_093021_Final

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September 30, 2021 SCIENTIFIC RESEARCH CORPORATION Kelly Sewell

202107-1699616

T. ROWE PR ICE

Plan Highlights

Plan Review

Investments

Scientific Research Corporation 401(k) Profit Sharing Plan Executive Summary Discretionary match calculation updated to 50% of 7% - 1/1/21 Hardship withdrawal modified to add FEMA expenses/loss as allowable provision – 1/8/21 Retirement 2065 Fund added 1/15/21 Removed Templeton Global Bond, A and mapped assets to Pimco Global Bond USD Hedged, I Plan passed nondiscrimination testing No Coronavirus Distribution Repayments made at this time Employee Webinars held in June & July – Roth Contributions, Investing Basics & Financial Wellness Plan opted in for cross plan webinars – quarterly Form 5500 – Completed & Filed Plan Document Restatement – Draft sent to SRC for review Custom Branded Communications Materials – Concepts presented 11/12/21 2021 Plan Updates

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Plan Highlights

Plan Review

Investments

Diversified Portfolio Usage

As of 11/1/2021

Conservative - $934,383.78 (11 Participants) Moderately Conservative - $9,777,035.77 (156 Participants) Moderately Aggressive - $18,618,897.38 (186 Participants) Aggressive - $22,812,932.20 (260 Participants)

Total: $52,143,249.13 (613 Participants)

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SECURITY UPDATE

Scientific Research Corporation- 105695 Participant Security Health Check

REVIEW OF ONLINE ENABLEMENT AND SECURITY SETTINGS

Eligible Not Participating

Active & Participating

% of Participants

Terminated

Total

November 2021

Online Account Established with MFA

74%

1,098

123

470

1,691

Online Account Established (No MFA)

103

174

No Online Account Established

19%

377

431

1,130

543

623

2,296

Total

Numbers adjust daily based on new hires, enablements, termination activity, and may not tie to other plan reporting. *Terminated includes – Terminated Awaiting Payment, Terminated Payment Deferred.

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Scientific Research Corporation- 105695 Participant Security Health Check

REVIEW OF ONLINE ENABLEMENT AND SECURITY SETTINGS

Online Account Established with MFA

Online Account Established (No MFA)

No Online Account Established

Total Participants

November 2021

% of Participants

21% 16%

111 308

33 14

327

471 378

No Balance - $0

$0.01-$10,000

16%

294

358

$10,000.01-$25,000

14%

278

314

$25,000.01-$50,000

$50,000.01-

12%

234

265

$100,000

$100,000.01-

11%

236

261

$250,000

10%

208

2 0

227

$250,000.01-$1M

$1M+

1,691

174

431

2,296

Total

Numbers adjust daily based on new hires, enablements, termination activity and may not tie to other plan reporting.

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Scientific Research Corporation 401(k) Profit Sharing Plan Plan Highlights As of September 30, 2021

PLAN PARTICIPATION

SALARY DEFERRALS

SAVINGS

$211,250,786

63.8%

10.1%

Average Deferral Rate

Participation Rate

Total Participant Plan Assets

52.5%

9.7%

1,808

Pretax participation rate

Pretax average deferral rate

Participants with a balance

$116,842 Average participant account balance

16.3%

7.6%

Roth participation rate

Roth average deferral rate

Median participant account balance

1.3%

4.8%

$36,144

After-tax participation rate

After-tax average deferral rate

of Active participants are maximizing the companymatch

$126,499 Average active participant account balance

73.5%

Average terminated participant account balance

$97,971

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Plan Highlights (continued) Scientific Research Corporation 401(k) Profit Sharing Plan As of September 30, 2021

DISTRIBUTIONS & WITHDRAWALS

TERMINATED PARTICIPANTS

INVESTMENTS & ASSETS

LOANS

263

Total Balance of Terminated Participants $59,958,164

Total Distributions & Withdrawals Processed since 09/30/2020, Accounting for -$13,993,619

of Active Participants Have a Loan

35.0%

15.0%

of Participants are One Fund Investors

of Plan assets are invested in target date investments, inclusive of 679 participants of Participants are contributing to multiple target date investments of Participants are solely invested in one target date investment of Participants are solely invested in one non target date investment

of Total participant assets are represented by terminated participants Terminated participants with a balance have been seperated from service for over 10 years Total terminated participants with a balance

5.0%

Loans across active participants

612

Hardship withdrawals

179

Non-hardship inservice withdrawals

29.9%

New loans issued since 03/31/2021

Terminated partial withdrawals

1.0%

Average loan amount by loan

$10,278

28.4%

17.0%

175

Lump-sum distributions

76.4% of Participants who terminated during 2Q21 that had assets remaining in the plan at the end of 3Q21 (42 participants)

9.3%

Installment distributions

of Participants made an exchange

Assets from participants that terminated during 2Q21 that remained in the plan at the end of 3Q21

86% / 14%

76.1%

of Assets rolled over vs. cashed out since 09/30/2020

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Plan At A Glance Scientific Research Corporation 401(k) Profit Sharing Plan

Professional, Scientific, and Technical Services

401(k) Industry Average Plan Type Average

09/30/2018

09/30/2019

09/30/2020

09/30/2021

Total participant plan assets

$140,262,180

$145,178,694

$167,775,422

$211,250,786

$322,339,527

$357,915,675

Average participant account balance Median participant account balance Average active participant account balance Average terminated participant account balance

$94,900 $32,608 $105,627 $77,214

$92,588 $30,505 $100,323 $78,550

$101,253 $32,576 $110,048 $85,263

$116,842 $36,144 $126,499 $97,971

$165,979 $44,651 $187,262 $130,651

$121,008 $26,967 $125,555 $110,928

Number of participants w ith a balance PARTICIPATION & CONTRIBUTIONS Participation rate

1,478

1,568

1,657

1,808

1,942

2,958

64.0%

63.0%

62.9%

63.8% 10.1%

80.0%

71.6%

Average deferral rate Median deferral rate

9.4% 7.0%

9.2% 7.0%

9.5% 7.0%

9.6% 8.0%

8.5% 6.0%

8.0%

Average active participant age Average active participant tenure

45.7

45.9

44.6

45.1

9.2

8.1

7.4

6.3

7.5

8.0

% of Participants contributing at or above the company match

79.0%

79.4%

81.9%

73.5%

N/A

AUTO- SERV ICES Auto-increase participation Auto-enrollment participation LOANS # of Active participants w ith loans % of Active participants w ith loans Average loan amount by participant DISTRIBUTIONS & WITHDRAWALS # of Hardship w ithdraw als # of Non-hardship inservice w ithdraw als # of Terminated partial w ithdraw als

20.6%

22.3%

20.1%

17.2%

9.8% / 49.9%

10.9% / 65.1%

0.0%

93.5%

93.7%

142

155

156

179

152

385

15.4%

15.3%

14.6%

15.0%

12.6%

18.9% $9,747

$10,066

$11,016

$10,679

$10,278

$12,317

10 26

698 393

1,431

732

# of Lump-sumdistributions # of Installment distributions Rollovers/cashouts distributions

365

270

255

175

1,181

2,055

484

709

86% / 14%

88% / 12%

73% / 27%

86% / 14%

88% / 12%

80% / 20%

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Plan At A Glance (continued) Scientific Research Corporation 401(k) Profit Sharing Plan

Professional, Scientific, and Technical Services

401(k) Industry Average Plan Type Average

09/30/2018

09/30/2019

09/30/2020

09/30/2021

INVESTMENT DIRECTION % of Participants w ith all assets in one investment option % of Participants w ith all assets in one investment, excluding target date investments % of Participants w ith all assets in one target date investment

22.3%

26.5%

30.5%

35.0%

64.6%

66.2%

4.1%

4.3%

4.7%

5.0%

5.1%

4.5%

18.2%

22.2%

25.8% 10.0%

29.9%

59.5%

61.6%

% of Participants that made an exchange PARTICIPANT ASSET ALLOCATION Number of investment options Average number of funds per participant % of Plan assets in money market funds % of Plan assets in bond funds % of Plan assets in multi-class funds % of Plan assets in target date investments

8.3%

8.1%

9.3%

9.1%

9.6%

9.6

9.0

8.4

8.2

2.5

2.3

6.4% 8.4% 0.0% 9.6%

6.7% 9.1% 0.0%

7.6% 9.6% 0.0%

6.8% 8.1% 0.0%

7.0% 4.7% 1.3%

7.6% 4.2% 0.8%

11.4% 71.5%

13.7% 68.1%

17.0% 67.3%

42.2% 41.9%

43.7% 34.5%

% of Plan assets in stock funds

74.5%

% of Plan assets in self -directed brokerage accounts

0.0% 1.1%

0.0% 1.3%

0.0% 1.1%

0.0% 0.9%

1.8% 0.6%

1.0% 1.1%

% of Plan assets in loans

PARTICIPANT ENGAGEMENT Average number of contacts per participant

21.7

22.0

24.3

23.2

18.7

18.1

% of Participants accessing participant w ebsite via brow ser % of Participants accessing participant w ebsite via app

83.4% 11.1%

78.7% 15.9%

81.6% 19.3%

79.1% 22.2%

67.2% 16.5%

61.6% 19.4%

# of Emails opened/sent

4,098 / 10,678

5,839 / 15,776

7,432 / 18,570

14,249 / 36,388

980 / 477

1,578 / 857

Average number of contacts to call center per participant

0.4

0.3

N/A

0.4

The Pro fessional, Scientific, and Technical Services industry contains 95 to tal T. Rowe Price plans. Data is based on all 401(k) plan types within the client universe o f T. Rowe Price Retirement Plan Services, Inc. %o f Participants contributing at or above the companymatch does no t include participants who have elected to defer by do llar amount. Auto-enro llment participation for each time period is based on 6 month data. The industry and plan type averages for auto-increase participation shows opt-in/opt-out statistics. All Target Date investments and Self-Directed brokerage accounts are included and counted as one option each. Participant engagement statistics only include participants with a balance.

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Asset Activity Scientific Research Corporation 401(k) Profit Sharing Plan

10/01/2017–09/30/2018

10/01/2018–09/30/2019

10/01/2019–09/30/2020

10/01/2020–09/30/2021

CASH FLOW— ALL PLAN ASSETS Beginning Assets

$131,365,758 $14,532,443 ($19,614,054) ($87,323) $14,183,953 $140,380,777

$140,380,777

$145,440,787

$167,880,119

11.5%

Inf low s Outf low s

11.1% -14.9% <1.0% 10.8% 6.9%

$16,205,665

$16,324,847

11.2%

$19,612,965

11.7%

($14,733,537)

-10.5%

($11,378,064)

-7.8%

($15,554,669)

-9.3%

Change in loan fund Market f luctuation Ending Assets

$338,143 <1.0% $3,249,740 2.3%

($115,332)

<1.0%

$142,470 <1.0%

$17,607,880

12.1%

$39,300,363

23.4%

$145,440,787

3.6%

$167,880,119

15.4%

$211,381,248

25.9%

CONTRIBUTION ALLOCATION Employee Pretax contributions

$7,167,937

53.1% <1.0% 4.5% 20.8% 20.7%

$7,846,121

52.5%

$8,500,105

56.1%

$9,512,463

51.4%

Employee Af ter-tax contributions Employee Roth contributions Employer contributions

$121,824 $610,569 $2,814,712 $2,795,483

$138,763

23.3% 17.3% <1.0% 5.9%

$3,255,155 $1,980,769 $156,219 $1,266,617

1.0% 8.4%

$155,786 $1,852,875

<1.0% 10.0%

$888,563

$3,488,934 $2,589,710

21.5% 13.1%

$18,516,096 100.0% 21.2% 16.6% $3,928,184 $3,066,787

Rollover contributions Total Contributions

$13,510,526 100.0%

$14,952,092 100.0%

$15,158,866 100.0%

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Contribution Allocation: 10/01/2019 – 09/30/2020 Scientific Research Corporation 401(k) Profit Sharing Plan Total Contribution: # P ART IC MONEY MARKET/STABILITY $772,642 5.1% (CONT INUED ) U.S. Treasury Money Fund $772,642 5.1% 556 Grow th Stock Fund $1,224,341 $15,158,866

8.1% 669 <1.0% 456 2.6% 574 1.8% 485 6.6% 653 3.2% 534 6.4% 574 7.4% 649 3.7% 581

BOND

$1,348,505 $355,967 $335,453 $176,544 $480,541 $4,567,574

8.9%

Invesco International Grow th Fund, Y JPMorgan Small Cap Grow th Fund, I MFS® International Grow th Fund, R6

$51,945 $392,689 $279,516 $1,003,171 $489,926 $968,448 $1,126,994

Dodge & Cox Income Fund PIMCO Real Return Fund, Instl Templeton Global Bond Fund, A

2.3% 355 2.2% 332 1.2% 304 3.2% 527

Mid-Cap Grow th Fund Mid-Cap Value Fund

Vanguard Total Bond Market Index Fund, Adm

TARGET DATE INVESTMENTS

30.1% <1.0% <1.0% <1.0%

Vanguard Equity Income Fund, Adm Vanguard Institutional Index Fund, Instl Vanguard Mid-Cap Index Fund, Adm

Retirement 2005 Fund Retirement 2010 Fund Retirement 2015 Fund Retirement 2020 Fund Retirement 2025 Fund Retirement 2030 Fund Retirement 2035 Fund Retirement 2040 Fund Retirement 2045 Fund Retirement 2050 Fund Retirement 2055 Fund Retirement 2060 Fund

$9,478

4 1 3

$557,706

$9,309

$264,424 $553,015 $911,475 $355,801 $641,115 $601,536 $524,249 $383,887 $298,795 $14,487 $8,470,145

1.7% 3.6% 6.0% 2.3% 4.2% 4.0% 3.5% 2.5% 2.0%

27 47 67 54 73 86 94 79 69

Retirement Balanced Fund, Inv

<1.0% 55.9%

STOCK

American Funds EuroPacif ic Grow th Fund, A American Funds Fundamental Investors Fund, A BNY Mellon Small Cap Stock Index Fund, Inv

$428,410

2.8% 576 7.5% 599 1.7% 545 1.1% 503 2.6% 564

$1,129,482

$260,053 $161,714 $395,749

DFA U.S. Targeted Value Fund, I Dodge & Cox International Stock Fund

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Contribution Allocation: 10/01/2020 – 09/30/2021 Scientific Research Corporation 401(k) Profit Sharing Plan Total Contribution: # P ART IC MONEY MARKET/STABILITY $1,182,968 6.4% (CONT INUED ) U.S. Treasury Money Fund $1,182,968 6.4% 552 DFA U.S. Targeted Value Fund, I $257,803 $18,516,096

1.4% 508 2.8% 562 8.4% 657 2.6% 557 2.1% 530 5.4% 632 2.6% 522 7.9% 561 6.3% 638 3.6% 579

BOND

$1,697,506 $471,760 $239,020 $389,605 $62,778 $534,343 $5,828,276

9.2%

Dodge & Cox International Stock Fund

$520,509 $1,559,618 $486,744 $386,028 $994,769 $484,776 $1,467,983 $1,168,950

Dodge & Cox Income Fund

2.5% 343 1.3% 264 2.1% 318 <1.0% 236 2.9% 519

Grow th Stock Fund

PIMCO Global Bond Opps (USD-Hdg) Fund, Instl

JPMorgan Small Cap Grow th Fund, I MFS® International Grow th Fund, R6

PIMCO Real Return Fund, Instl Templeton Global Bond Fund, A

Mid-Cap Grow th Fund Mid-Cap Value Fund

Vanguard Total Bond Market Index Fund, Adm

TARGET DATE INVESTMENTS

31.5% <1.0% <1.0% <1.0%

Vanguard Equity Income Fund, Adm Vanguard Institutional Index Fund, Instl Vanguard Mid-Cap Index Fund, Adm

$11,951 $7,223 $20,936 $400,312 $600,729 $849,062 $494,807 $766,422 $908,865 $840,208 $514,886 $390,780 $12,229

4 2 3

$664,993

2.2% 3.2% 4.6% 2.7% 4.1% 4.9% 4.5% 2.8% 2.1%

25 48 67 49 73 83 85 84 81

<1.0% <1.0% 53.0%

8 6

Retirement Balanced Fund, Inv

$9,865

STOCK

$9,807,346

American Funds EuroPacif ic Grow th Fund, A American Funds Fundamental Investors Fund, A BNY Mellon Small Cap Stock Index Fund, Inv

$494,604

2.7% 563 5.6% 582 1.5% 537

$1,039,120

$281,451

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Asset Allocation — All: 09/30/2020 Scientific Research Corporation 401(k) Profit Sharing Plan Total Assets: # P ART IC MONEY MARKET/STABILITY $12,791,671 7.6% (CONT INUED ) U.S. Treasury Money Fund $12,791,671 7.6% 810 JPMorgan Small Cap Grow th Fund, I $167,880,119

$7,296,052 $3,360,756 $13,690,084 $3,244,963 $9,188,655 $16,948,268 $5,543,831 $1,780,682 $1,780,682

4.3% 785 2.0% 757 8.2% 901 1.9% 712 5.5% 801 10.1% 903 3.3% 783

BOND

$16,046,259 $5,595,989 $3,979,540 $1,193,377 $5,277,353 $22,928,300 $2,853,754 $3,909,391 $5,735,811 $1,873,594 $2,121,035 $3,145,474 $1,745,474 $42,391 $111,546 $114,228,510 $7,437,077 $15,380,816 $2,308,851 $1,292,486 $3,677,292 $24,859,379 $809,418 $502,149 $78,261

9.6%

MFS® International Grow th Fund, R6

Dodge & Cox Income Fund PIMCO Real Return Fund, Instl Templeton Global Bond Fund, A

3.3% 506 2.4% 466 <1.0% 391 3.1% 731

Mid-Cap Grow th Fund Mid-Cap Value Fund

Vanguard Equity Income Fund, Adm Vanguard Institutional Index Fund, Instl Vanguard Mid-Cap Index Fund, Adm

Vanguard Total Bond Market Index Fund, Adm

TARGET DATE INVESTMENTS

13.7% <1.0% <1.0%

OTHER

1.1%

Retirement 2005 Fund Retirement 2015 Fund Retirement 2020 Fund Retirement 2025 Fund Retirement 2030 Fund Retirement 2035 Fund Retirement 2040 Fund Retirement 2045 Fund Retirement 2050 Fund Retirement 2055 Fund Retirement 2060 Fund

3 5

Outstanding Loan Balance

1.1% 165

Average Participant Account Balance:

$101,253

1.7% 2.3% 3.4% 1.1% 1.3% 1.9% 1.0%

35 44 72 52 74 88 92 66 64

Number of Participants: Plan Level Accounts:

1,657

$104,697

<1.0% <1.0% <1.0% 68.1%

Retirement Balanced Fund, Inv

STOCK

American Funds EuroPacif ic Grow th Fund, A American Funds Fundamental Investors Fund, A BNY Mellon Small Cap Stock Index Fund, Inv

4.4% 826 9.2% 854 1.4% 742 <1.0% 687 2.2% 789 14.8% 929

DFA U.S. Targeted Value Fund, I Dodge & Cox International Stock Fund

Grow th Stock Fund

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Asset Allocation — All: 09/30/2021 Scientific Research Corporation 401(k) Profit Sharing Plan Total Assets: # P ART IC MONEY MARKET/STABILITY $14,295,480 6.8% (CONT INUED ) U.S. Treasury Money Fund $14,295,480 6.8% 850 Dodge & Cox International Stock Fund $211,381,248

$4,946,742 $30,317,501 $8,662,108 $4,034,598 $15,411,911 $4,511,274 $11,611,784 $20,730,953 $7,397,160 $1,923,152 $1,923,152

2.3% 834 14.4% 972 4.1% 828 1.9% 792 7.3% 927 2.1% 758 5.5% 838 9.8% 937 3.5% 836

BOND

$17,013,708 $5,669,332 $1,401,590 $4,314,375 $5,628,411 $35,927,370

8.1%

Grow th Stock Fund

Dodge & Cox Income Fund

2.7% 525 <1.0% 419 2.0% 492 2.7% 769

JPMorgan Small Cap Grow th Fund, I MFS® International Grow th Fund, R6

PIMCO Global Bond Opps (USD-Hdg) Fund, Instl

PIMCO Real Return Fund, Instl

Mid-Cap Grow th Fund Mid-Cap Value Fund

Vanguard Total Bond Market Index Fund, Adm

TARGET DATE INVESTMENTS

17.0% <1.0% <1.0% <1.0%

Vanguard Equity Income Fund, Adm Vanguard Institutional Index Fund, Instl Vanguard Mid-Cap Index Fund, Adm

$340,843 $15,448 $535,371

2 2 4

OTHER

<1.0%

$3,126,486 $9,406,043 $7,009,161 $2,052,064 $3,207,891 $4,555,989 $3,082,077 $1,427,012

1.5% 4.5% 3.3%

35 61 87 57 82

Outstanding Loan Balance

<1.0% 185

Average Participant Account Balance:

$116,842

Number of Participants: Plan Level Accounts:

1,808

$130,462

<1.0%

1.5%

2.2% 101 1.5% 108

<1.0% <1.0% <1.0% <1.0% 67.3%

94 87

$880,446 $12,497 $276,046

Retirement Balanced Fund, Inv

STOCK

$142,091,076 $8,534,523 $19,117,228 $3,651,168 $3,164,125

American Funds EuroPacif ic Grow th Fund, A American Funds Fundamental Investors Fund, A BNY Mellon Small Cap Stock Index Fund, Inv

4.0% 868 9.0% 886 1.7% 787 1.5% 753

DFA U.S. Targeted Value Fund, I

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Asset Allocation — Active: 09/30/2020 Scientific Research Corporation 401(k) Profit Sharing Plan Total Assets: # P ART IC MONEY MARKET/STABILITY $9,304,655 7.9% (CONT INUED ) U.S. Treasury Money Fund $9,304,655 7.9% 483 JPMorgan Small Cap Grow th Fund, I $117,745,697

$4,296,052 $2,222,315 $9,909,516 $2,373,843 $5,836,243 $11,284,797 $3,804,557 $1,665,969 $1,665,969

3.7% 468 1.9% 449 8.4% 550 2.0% 432 5.0% 481 9.6% 544 3.2% 477

BOND

$10,335,369 $3,889,849 $2,573,297

8.8%

MFS® International Grow th Fund, R6

Dodge & Cox Income Fund PIMCO Real Return Fund, Instl Templeton Global Bond Fund, A

3.3% 303 2.2% 281 <1.0% 242 2.6% 435

Mid-Cap Grow th Fund Mid-Cap Value Fund

$791,180

Vanguard Equity Income Fund, Adm Vanguard Institutional Index Fund, Instl Vanguard Mid-Cap Index Fund, Adm

Vanguard Total Bond Market Index Fund, Adm

$3,081,044 $19,418,133

TARGET DATE INVESTMENTS

16.5% <1.0% <1.0%

OTHER

1.4%

$40,272 $51,369

2 2

Outstanding Loan Balance

1.4% 156

Average Participant Account Balance:

$110,048

$2,724,064 $3,150,197 $5,384,001 $1,630,373 $1,682,401 $2,497,567 $1,152,514

2.3% 2.7% 4.6% 1.4% 1.4% 2.1%

24 34 56 39 62 68 76 54 54

Number of Participants:

1,069

<1.0% <1.0% <1.0% <1.0% 65.4%

$657,114 $422,066 $26,195

Retirement Balanced Fund, Inv

STOCK

$76,916,874 $4,816,080 $10,150,212 $1,602,103

American Funds EuroPacif ic Grow th Fund, A American Funds Fundamental Investors Fund, A BNY Mellon Small Cap Stock Index Fund, Inv

4.1% 482 8.6% 506 1.4% 443 <1.0% 409 2.3% 473 14.5% 561

DFA U.S. Targeted Value Fund, I Dodge & Cox International Stock Fund

$912,395

$2,684,203 $17,024,559

Grow th Stock Fund

T. ROWE PR ICE

Asset Allocation — Active: 09/30/2021 Scientific Research Corporation 401(k) Profit Sharing Plan Total Assets: # P ART IC MONEY MARKET/STABILITY $9,801,816 6.5% (CONT INUED ) U.S. Treasury Money Fund $9,801,816 6.5% 532 Dodge & Cox International Stock Fund $151,423,084

$3,702,398 $20,197,489 $5,379,257 $2,807,566 $11,301,814 $3,437,269 $8,449,201 $13,273,740 $5,376,871 $1,839,677 $1,839,677

2.4% 529 13.3% 612 3.6% 519 1.9% 495 7.5% 589 2.3% 484 5.6% 537 8.8% 586 3.6% 534

BOND

$11,375,117 $3,998,835

7.5%

Grow th Stock Fund

Dodge & Cox Income Fund

2.6% 331 <1.0% 275 1.8% 310 2.4% 485

JPMorgan Small Cap Grow th Fund, I MFS® International Grow th Fund, R6

PIMCO Global Bond Opps (USD-Hdg) Fund, Instl

$942,277

PIMCO Real Return Fund, Instl

$2,765,068 $3,668,937 $29,792,880

Mid-Cap Grow th Fund Mid-Cap Value Fund

Vanguard Total Bond Market Index Fund, Adm

TARGET DATE INVESTMENTS

19.7% <1.0% <1.0% <1.0%

Vanguard Equity Income Fund, Adm Vanguard Institutional Index Fund, Instl Vanguard Mid-Cap Index Fund, Adm

$340,843 $15,448 $63,899

2 2 2

OTHER

1.2%

$3,033,376 $8,158,251 $6,343,577 $1,557,305 $2,636,680 $3,708,246 $2,049,062 $1,089,274

2.0% 5.4% 4.2% 1.0% 1.7% 2.5% 1.4%

26 49 68 40 68 83 80 69 72

Outstanding Loan Balance

1.2% 179

Average Participant Account Balance:

$126,499

Number of Participants:

1,196

<1.0% <1.0% <1.0% <1.0% 65.1%

$744,067 $12,497 $40,355

8 7

Retirement Balanced Fund, Inv

STOCK

$98,483,133 $6,061,764 $13,372,432 $2,682,403 $2,440,929

American Funds EuroPacif ic Grow th Fund, A American Funds Fundamental Investors Fund, A BNY Mellon Small Cap Stock Index Fund, Inv

4.0% 539 8.8% 553 1.8% 496 1.6% 481

DFA U.S. Targeted Value Fund, I

T. ROWE PR ICE

Asset Allocation — Terminated: 09/30/2020 Scientific Research Corporation 401(k) Profit Sharing Plan Total Assets: # P ART IC MONEY MARKET/STABILITY $3,487,016 7.0% (CONT INUED ) U.S. Treasury Money Fund $3,487,016 7.0% 327 JPMorgan Small Cap Grow th Fund, I $3,000,000 $50,134,422

6.0% 317 2.3% 308 7.5% 351 1.7% 280 6.7% 320 11.3% 359 3.5% 306

BOND

$5,710,890 $1,706,140 $1,406,243 $2,196,310 $3,510,168 $2,119 $60,177 $129,690 $759,194 $351,811 $243,222 $438,634 $647,907 $592,960 $152,305 $80,083 $52,066 $37,311,636 $2,620,997 $5,230,604 $402,198

11.4%

MFS® International Grow th Fund, R6

$1,138,441 $3,780,568 $871,120 $3,352,412 $5,663,472 $1,739,274 $114,713 $114,713 $85,263

Dodge & Cox Income Fund PIMCO Real Return Fund, Instl Templeton Global Bond Fund, A

3.4% 203 2.8% 185 <1.0% 149 4.4% 296

Mid-Cap Grow th Fund Mid-Cap Value Fund

Vanguard Equity Income Fund, Adm Vanguard Institutional Index Fund, Instl Vanguard Mid-Cap Index Fund, Adm

Vanguard Total Bond Market Index Fund, Adm

TARGET DATE INVESTMENTS

7.0%

OTHER

<1.0% <1.0%

<1.0% <1.0% <1.0% <1.0% <1.0% <1.0% 1.5%

1 3

Outstanding Loan Balance

Average Participant Account Balance:

11 10 16 13 12 20 16 12 10

Number of Participants:

588

1.3% 1.2%

<1.0% <1.0% <1.0% 74.4%

Retirement Balanced Fund, Inv

STOCK

American Funds EuroPacif ic Grow th Fund, A American Funds Fundamental Investors Fund, A BNY Mellon Small Cap Stock Index Fund, Inv

5.2% 344 10.4% 348 1.4% 299 <1.0% 278 2.0% 316 15.6% 368

$706,748 $380,091 $993,089

DFA U.S. Targeted Value Fund, I Dodge & Cox International Stock Fund

Grow th Stock Fund

$7,834,819

T. ROWE PR ICE

Asset Allocation — Terminated: 09/30/2021 Scientific Research Corporation 401(k) Profit Sharing Plan Total Assets: # P ART IC MONEY MARKET/STABILITY $4,493,664 7.5% (CONT INUED ) U.S. Treasury Money Fund $4,493,664 7.5% 318 MFS® International Grow th Fund, R6 $1,227,032 $59,958,164

2.0% 297 6.9% 338 1.8% 274 5.3% 301 12.4% 351 3.4% 302

BOND

$5,638,591 $1,670,497

9.4%

Mid-Cap Grow th Fund Mid-Cap Value Fund

$4,110,097 $1,074,005 $3,162,583 $7,457,213 $2,020,289

Dodge & Cox Income Fund

2.8% 194 <1.0% 144 2.6% 182 3.3% 284

PIMCO Global Bond Opps (USD-Hdg) Fund, Instl

$459,313

Vanguard Equity Income Fund, Adm Vanguard Institutional Index Fund, Instl Vanguard Mid-Cap Index Fund, Adm

PIMCO Real Return Fund, Instl

$1,549,307 $1,959,475 $6,134,490

Vanguard Total Bond Market Index Fund, Adm

TARGET DATE INVESTMENTS

10.2% <1.0% <1.0%

OTHER

$83,475 $83,475 $97,971

<1.0% <1.0%

Retirement 2015 Fund Retirement 2020 Fund Retirement 2025 Fund Retirement 2030 Fund Retirement 2035 Fund Retirement 2040 Fund Retirement 2045 Fund Retirement 2050 Fund Retirement 2055 Fund Retirement 2060 Fund

$471,471 $93,109

2 9

Outstanding Loan Balance

Average Participant Account Balance:

Number of Participants:

612

$1,247,791 $665,584 $494,759 $571,211 $847,743 $1,033,015 $337,738 $136,379 $235,691 $43,607,943 $2,472,758 $5,744,796

2.1% 1.1%

12 19 17 14 18 28 25 15

<1.0% <1.0%

1.4% 1.7%

<1.0% <1.0% <1.0% 72.7%

Retirement Balanced Fund, Inv

STOCK

American Funds EuroPacif ic Grow th Fund, A American Funds Fundamental Investors Fund, A BNY Mellon Small Cap Stock Index Fund, Inv

4.1% 329 9.6% 333 1.6% 291 1.2% 272 2.1% 305 16.9% 360 5.5% 309

$968,765 $723,197

DFA U.S. Targeted Value Fund, I Dodge & Cox International Stock Fund

$1,244,344 $10,120,013 $3,282,851

Grow th Stock Fund

JPMorgan Small Cap Grow th Fund, I

T. ROWE PR ICE

Plan Cost Analysis Scientific Research Corporation 401(k) Profit Sharing Plan As of September 30, 2021

Investment Expense Ratio 1,2

Administrative Fees 3

Investment Expense ($)

Administrative Fees ($)

Investment

Ticker CUSIP Market Value of Plan Assets

AMFUNDS FUNDAMENTAL INV, A AMER FUNDS EUROPACIFIC GROWTH BNY MELLON SMALLCAP STK IND IN DFA US TARGETED VALUE I DODGE & COX INCOME DODGE & COX INTL STOCK GROWTH STOCK FUND MID-CAP GROWTH FUND MID-CAP VALUE FUND PIMCO REAL RETURN RETIREMENT 2005 FUND RETIREMENT 2010 FUND RETIREMENT 2015 FUND RETIREMENT 2020 FUND RETIREMENT 2025 FUND RETIREMENT 2030 FUND RETIREMENT 2035 FUND RETIREMENT 2040 FUND RETIREMENT 2045 FUND RETIREMENT 2050 FUND RETIREMENT 2055 FUND RETIREMENT 2060 FUND RETIREMENT 2065 FUND JPMORGAN SMALL CAP GROWTH I MFS INTERNATIONAL GROWTH R6 PIMCO GLOBAL BOND USD HEDGED I T ROWE PRICE RETIRE BAL INV U.S. TREASURY MONEY FUND VANGUARD EQUITY INCOME ADM VANGUARD MID-CAP IND- ADMIRAL VANGUARD TOTAL BOND INDEX ADM OUTSTANDING LOAN BALANCES VANGUARD INST INDEX

ANCFX 360802102 AEPGX 298706102 DISSX 09661L401 DFFVX 233203595 DODIX 256210105 DODFX 256206103 PRGFX 741479109 OGGFX 4812C0571 MGRDX 552746356 RPMGX 779556109 TRMCX 77957Y106 PGBIX 693390130 PRRIX 693391104 TRRFX 74149P812 TRRAX 74149P101 TRRGX 74149P796 TRRBX 74149P200 TRRHX 74149P788 TRRCX 74149P309 TRRJX 74149P770 TRRDX 74149P408 TRRKX 74149P762 TRRMX 74149P754 TRRNX 74149P747 TRRLX 74149P325 TRSJX 872797683 TRRIX 74149P507 PRTXX 77957T305 VEIRX 921921300 VINIX 922040100 VIMAX 922908645 VBTLX 921937603

$19,117,228 $8,534,523 $3,651,168 $3,164,125 $5,669,332 $4,946,742 $30,317,501 $8,662,108 $4,034,598 $15,411,911 $4,511,274 $1,401,590 $4,314,375 $340,843 $15,448 $535,371 $3,126,486 $9,406,043 $7,009,161 $2,052,064 $3,207,891 $4,555,989 $3,082,077 $1,427,012 $880,446 $14,425,942 $11,611,784 $20,730,953 $7,397,160 $5,628,411 $1,923,152 $12,497 $276,046

0.61% $116,615 0.82% $69,983 0.50% $18,256 0.33% $10,442 0.42% $23,811 0.63% $31,164 0.64% $194,032 1.00% $86,621 0.72% $29,049 0.73% $112,507 0.78% $35,188

0.30% $57,352 0.30% $25,604 0.35% $12,779

0.00% 0.08% 0.10%

$4,535 $4,947

0.19% $57,603 0.25% $21,655

0.00%

0.19% $29,283

0.19% 0.00% 0.00% 0.19% 0.19% 0.19% 0.19% 0.19% 0.19% 0.19% 0.19% 0.19% 0.19% 0.19% 0.19% 0.00% 0.00% 0.00% 0.00%

$8,571

0.59%

$8,269

$0 $0

0.47% $20,278

0.49% 0.49% 0.51%

$1,670

$648

$76

$29

$2,730

$1,017 $5,940

0.53% $16,570 0.55% $51,733 0.58% $40,653 0.59% $12,107 0.60% $19,247 0.62% $28,247 0.63% $19,417

0.19% $17,871 0.19% $13,317

$3,899 $6,095 $8,656 $5,856 $2,711 $1,673

0.64% 0.64% 0.64% 0.49%

$9,133 $5,635

$80

$24

$1,353

$524

0.28% $40,393 0.19% $22,062

0.19% $27,409

$0 $0 $0 $0

0.03% 0.05% 0.05%

$6,219 $3,699 $2,814

N/A N/A

N/A

Total

$211,381,248

0.49% $1,040,054

0.15% $318,000

T. ROWE PR ICE

Plan Cost Analysis (continued) Scientific Research Corporation 401(k) Profit Sharing Plan As of September 30, 2021

*For illustrative purposes, the table shows recordkeeping services fees and investment expenses expressed in three different ways: per participant, as a percentage of plan assets, and in total dollars for the plan. The "Estimated Annual Administrative Fees from Investments" is the amount of administrative fees generated by investments that are estimated to be received and retained by T. Rowe Price Retirement Plan Services, Inc. ("TRP RPS") for the provision of recordkeeping, administrative, and shareholder services on behalf of the investments. The "Estimated Annual Revenue Requirement" is the "Contractual Annual Recordkeeping Fee" expressed in total dollars, as a dollar rate per participant and in basis points. The "Estimated Overage (Estimated Shortfall)" is the difference between the Estimated Annual Administrative Fees from Investments and the Estimated Annual Revenue Requirement. An overage will be credited to an administrative budget for the plan. A shortfall must be covered by the plan or the plan sponsor. The "Contractual Annual Recordkeeping Fee" is the amount of revenue that TRP RPS may retain from the Estimated Annual Administrative Fees from Investments. Please refer to your recordkeeping agreement and disclosure documents for more detail on additional fees, if any, and compensation to be received by TRP RPS. ¹Each investment's annualized expense ratio is based on the investment’s most recent fiscal year-end data available to TRP RPS. For the purpose of this summary document, the expense ratio may include one or more of the following: management fees, operating costs, administrative fees, and trustee fees, as applicable. The net expense ratio may not reflect certain waivers or expenses, e.g., voluntary management fee waivers, which may reduce or increase the net expense ratio shown. For T. Rowe Price-sponsored mutual funds (“Price Funds”), contractual waivers are reflected in the net expense ratio. Please read disclosure documents, such as a prospectus, for more information about an investment’s expenses. The source of the expense ratio for non- proprietary mutual fund investments is Lipper Data Feed Services. The expense ratio for other non-proprietary investments may be reported to TRP RPS through a third party commercial database or by the sponsor or manager of the investment. ³Administrative Fees total is the weighted average of administrative fees for each investment shown. Administrative fees for each investment do not increase the reported total expense ratio of the investment. For certain investments, TRP RPS receives payments for the provision of shareholder recordkeeping and administrative services. Depending on the investment, such payments, which may include shareholder servicing fees, sub-transfer agency fees, and distribution or Rule 12b-1 fees, may be paid by the investment, investment manager, its advisor or affiliates. ²Investment Expense Ratio total is the weighted average of expense ratios for each investment shown. The "Estimated Annual Investment Expense" is the estimated total annual operating expenses of plan investments.

# Plan Participants w/ Balance = 1,808

Amount Per Participant

Percentage of Plan Assets

Total Plan ($)

Recordkeeping Services Fees and Investment Expense*

Estimated Annual Administrative Fees from Investments (-) Estimated Annual Revenue Requirement

$176

0.1504% $318,000 0.0419% $88,592 0.1085% $229,408 0.4920% $1,040,054 0.1085% $229,408 0.3835% $810,646

$49

Estimated Overage

$127

Estimated Annual Investment Expense

$575 $127 $448

(-) Estimated Overage

Total

Pricing structure for recordkeeping services Contractual Annual Recordkeeping Fee

$49

Transaction Fee Description Distribution Fee Loan Origination Fee Loan Maintenance Service Fee Express Delivery Fee Wire Fee QDRO Split Fee

Fee Rate N/A $50 $25 $30 $30

$300

T. ROWE PR ICE

Mutual Fund Report Card - Lipper

105695

Call 1-800-922-9945 or log onto the PlanView Portal to request a prospectus which includes investment objectives, risks, fees, expenses, and other information that you should read and consider carefully before investing.

September 30, 2021

SCIENTIFIC RESEARCH CORPORATION 401(K) PROFIT SHARING PLAN

Sharpe Ratio*

Annl Standard Deviation*

# of Funds in

Lipper Ranking*

(Rel. to Lipper Peer Gr.) (Rel. to Lipper Peer Gr.)

Portfolio* Expense

Fund

Lipper Classification

1 Yr

3 Yrs

10 Yrs

Ticker Symbol

5 Yrs

3 Yrs 5 Yrs 10 Yrs 3 Yrs 5 Yrs 10 Yrs Turnover Ratio* Manager

Fund Name

Lipper Classification

1 Yr 3 Yrs 5 Yrs 10 Yrs Rank Quartile Rank Quartile Rank Quartile Rank Quartile Quartile Quartile Quartile Quartile Quartile Quartile Quartile Quartile Tenure

T Rowe Price US Treasury Money Fund

PRTXX U.S. Treasury Money Market Funds

42 38 35 30 8 505 479 421 318 51 208 199 166 118 54 198 194 170 115 73 113 109 73 48 10 113 109 73 48 3 108 105 71 39 3 159 156 117 60 4 208 194 153 77 2 214 200 160 84 2 208 194 153 77 9 210 196 152 84 19 204 190 149 76 6 206 192 152 77 11 204 190 147 56 9

1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 1 1 1 2 1 1 1 1 1 1 1 1 1 1

2 1 1 2 2 2 2 2 2 2 1 1 1 1 1 1 2 2 3 2 1 1 2 2 2 3 2 2 1 4 1 -

1 1 1 1 3 2 2 2 2 1 1 1 1 1 1 1 1 2 3 1 1 1 1 1 2 3 2 2 1 4 1 -

1 1 1 1 3 2 2 2 2 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 1 1 1 2 - -

4 2 1 3 1 4 4 4 4 4 4 4 3 3 3 3 4 4 2 3 3 4 4 1 3 1 1 2 3 2 3 -

4 1 1 3 2 4 4 4 4 4 4 4 4 3 3 3 4 4 2 3 3 4 4 1 3 1 1 2 3 2 3 -

4 1 1 4 2 3 4 4 4 4 4 4 4 3 3 3 4 4 2 3 3 4 4 1 3 1 1 2 4 1 - -

2 2 1 2 1 3 3 2 2 2 2 2 2 2 2 2 2 3 2 2 2 1 1 2 1 1 1 2 1 1 1

Dodge & Cox Income Fund

DODIX Core Bond Funds PGBIX Global Income Funds

17 40 18

2 4 4 2 2 2 2 2 2 2 2 2 2 2 2 3 1 2 2 3 2 1 2 2 2 2 1 2 2 2 1

PIMCO Gl Bd Oppty Fund (US Dollar-Hedged);Institutional

2 112 3

8 8

8 3 9

PIMCO Real Return Fund;Institutional

PRRIX Inflation Protected Bond Funds

Vanguard Total Bond Market Index Fund;Admiral T Rowe Price Retirement 2005 Fund T Rowe Price Retirement 2010 Fund T Rowe Price Retirement 2015 Fund T Rowe Price Retirement 2020 Fund T Rowe Price Retirement 2025 Fund T Rowe Price Retirement 2030 Fund T Rowe Price Retirement 2035 Fund T Rowe Price Retirement 2040 Fund T Rowe Price Retirement 2045 Fund T Rowe Price Retirement 2050 Fund T Rowe Price Retirement 2055 Fund T Rowe Price Retirement 2060 Fund T Rowe Price Retirement 2065 Fund T Rowe Price Retirement Balanced Fund American Funds EuroPacific Growth Fund;A American Funds Fundamental Investors;A BNY Mellon Smallcap Stock Index Fund;Investor DFA US Targeted Value Portfolio;Institutional Dodge & Cox International Stk Fund JPMorgan Small Cap Growth Fund;I MFS International Growth Fund;R6 T Rowe Price Growth Stock Fund T Rowe Price Mid-Cap Growth Fund T Rowe Price Mid-Cap Value Fund Vanguard Equity Income Fund;Admiral Vanguard Institutional Index Fund;Institutional Vanguard Mid-Cap Index Fund;Admiral

VBTLX Core Bond Funds

505 479 421 318 422 4 278 3 282 3 220 3

TRRFX Mixed-Asset Target 2010 Funds TRRAX Mixed-Asset Target 2010 Funds TRRGX Mixed-Asset Target 2015 Funds TRRBX Mixed-Asset Target 2020 Funds TRRHX Mixed-Asset Target 2025 Funds TRRCX Mixed-Asset Target 2030 Funds TRRJX Mixed-Asset Target 2035 Funds TRRDX Mixed-Asset Target 2040 Funds TRRKX Mixed-Asset Target 2045 Funds TRRMX Mixed-Asset Target 2050 Funds TRRNX Mixed-Asset Target 2055 Funds TRRLX Mixed-Asset Target 2060 Funds TRSJX Mixed-Asset Target 2060+ Funds TRRIX Mixed-Asset Target Today Funds AEPGX International Large-Cp Gro Fds ANCFX Large-Cap Core Funds DISSX Small-Cap Core Funds DFFVX Small-Cap Value Funds DODFX International Large-Cp Val Fds OGGFX Small-Cap Growth Funds MGRDX International Large-Cp Gro Fds PRGFX Large-Cap Growth Funds

1 1 1 1 1 1 1 1 1 1 1 1

9 3 3 5 4 3 3 5 3 3 4 6

1 1 1 1 1 1 1 1 1 1 1 1

- - - - - - - - - - - - - - - - -

2 2 2 2 2 8 6 5 6 6 8

1 1 1 1 1 3 3 3 3 3

199 176 114 -

- -

157 143 113 70 2 306 272 232 163 89

1 2

642 576 519 415 342 3 446 4 378 3 238 3

838 794 706 488 231 2 395 2 189 2

53 29

1 1 1 1 2 1 2 1 1

235 215 199 152 75 64 50 46 40 9

2 1

53 11 76 68

2 1 1 2

707 671 595 443 668 4 175 2 306 272 232 163 252 4 163 3

31 44 69

18 10

657 603 548 425 132 1 270 2 192 2

RPMGX Mid-Cap Growth Funds TRMCX Mid-Cap Value Funds VEIRX Equity Income Funds VINIX S&P 500 Index Funds VIMAX Mid-Cap Growth Funds

367 343 312 247 256 3 261 4 238 4 116 2

30 22 15 22 21

185 174 158 122 176 4

39 33

473 450 400 243 180 2 188 2 163 2

116 112 104 87 7 367 343 312 247 63

1 301 4 300 4 194 4

# of Funds That Beat Their Lipper Peer Group (1st or 2nd Quartile)

25 31

27 31

27 30

28 31

27 31

29 30

27 31

29 32

5.4

Total Number of Mutual Funds in Plan Lineup % of Funds That Beat Their Lipper Peer Group

81%

87%

90% 90% 87% 97% 29% 29% 30% 87% 91%

Sources: T. Rowe Price, Lipper, Inc.

Rankings are based on cumulative total return. Past performance cannot guarantee future results.

Standard deviation is a statistical measure of the range of a fund's performance around its average. Funds with a higher standard deviation are more volatile. Sharpe Ratio is a risk-adjusted measure developed by Nobel Laureate William Sharpe. It is calculated by using standard deviation and excess return to determine reward per unit of risk. The higher the Sharpe Ratio, the better the fund’s historical risk-adjusted performance.

An investment in the fund is not insured or guaranteed by the FDIC or any other government agency. Although the fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the fund.

All data subject to change. *1st & 2nd Quartile rankings are assigned to funds with above average performance, higher than average Sharpe Ratios, below average standard deviation, below average turnover, & below average expense ratios. T. Rowe Price Investment Services, Inc, Distributor, T. Rowe Price mutual funds.

2017-AX-24744

T. ROWE PR ICE

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