TLS

SEC source: 0002012047-25-000004 · wk-form4_1744747624.xml · nonDerivative · entry 1

Hill Donna K. · CIK 0002012047 · VP, Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,220

F1 · shares: The reporting person acquired these shares upon the vesting of certain performance share units.

SEC source: 0002011895-25-000004 · wk-form4_1744747584.xml · nonDerivative · entry 2

Cooke Malcolm G. · CIK 0002011895 · VP, Chief Info Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,428.091

F2 · shares: Telos withheld 791 shares of its common stock to satisfy the reporting person's tax withholding obligation resulting from the vesting of the performance stock units. The reporting person did not sell any shares of Telos stock to a third party as part of this transaction.

SEC source: 0002011895-25-000004 · wk-form4_1744747584.xml · nonDerivative · entry 1

Cooke Malcolm G. · CIK 0002011895 · VP, Chief Info Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,219.091

F1 · shares: The reporting person acquired these shares upon the vesting of certain performance share units.

SEC source: 0001872955-25-000004 · wk-form4_1744747352.xml · nonDerivative · entry 2

Bendza Gary Mark · CIK 0001872955 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 791,827

F2 · shares: Telos withheld 27,064 shares of its common stock to satisfy the reporting person's tax withholding obligation resulting from the vesting of the performance stock units. The reporting person did not sell any shares of Telos stock to a third party as part of this transaction.

SEC source: 0001872955-25-000004 · wk-form4_1744747352.xml · nonDerivative · entry 1

Bendza Gary Mark · CIK 0001872955 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 818,891

F1 · shares: The reporting person acquired these shares upon the vesting of certain performance share units.

SEC source: 0001909327-25-000004 · wk-form4_1744747540.xml · nonDerivative · entry 2

Robbins Edward Hutchinson Jr. · CIK 0001909327 · EVP, General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 464,319

F2 · shares: Telos withheld 15,501 shares of its common stock to satisfy the reporting person's tax withholding obligation resulting from the vesting of the performance stock units. The reporting person did not sell any shares of Telos stock to a third party as part of this transaction.

SEC source: 0001909327-25-000004 · wk-form4_1744747540.xml · nonDerivative · entry 1

Robbins Edward Hutchinson Jr. · CIK 0001909327 · EVP, General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 479,820

F1 · shares: The reporting person acquired these shares upon the vesting of certain performance share units.

SEC source: 0001357717-25-000004 · wk-form4_1744747494.xml · nonDerivative · entry 2

Griffin Mark D · CIK 0001357717 · EVP, Security Solutions

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,040,355

F2 · shares: Telos withheld 21,617 shares of its common stock to satisfy the reporting person's tax withholding obligation resulting from the vesting of the performance stock units. The reporting person did not sell any shares of Telos stock to a third party as part of this transaction.

SEC source: 0001357717-25-000004 · wk-form4_1744747494.xml · nonDerivative · entry 1

Griffin Mark D · CIK 0001357717 · EVP, Security Solutions

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,061,972

F1 · shares: The reporting person acquired these shares upon the vesting of certain performance share units.

SEC source: 0001356849-25-000005 · wk-form4_1744747291.xml · nonDerivative · entry 2

Wood John B · CIK 0001356849 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,089,821

F2 · shares: Telos withheld 51,912 shares of its common stock to satisfy the reporting person's withholding obligation resulting from the vesting of performance stock units. The reporting person did not sell any shares of Telos stock to a third party as part of this transaction.

SEC source: 0001356849-25-000005 · wk-form4_1744747291.xml · nonDerivative · entry 1

Wood John B · CIK 0001356849 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,141,733

F1 · shares: The reporting person acquired these shares upon the vesting of certain performance share units.

SEC source: 0000320121-25-000006 · wk-form4_1741036702.xml · nonDerivative · entry 1

Harding Victoria A. · CIK 0001913497 · Controller, Chief Acct Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,970

F1 · shares: On March 1, 2025, 6,968 restricted stock units held by the reporting person vested and were settled in shares of common stock. Telos withheld 2,467 shares of its common stock to satisfy the reporting person's tax withholding obligation resulting from the vesting of the restricted stock units. The reporting person did not sell any shares of Telos stock to a third party as part of this transaction.

SEC source: 0000320121-25-000004 · wk-form4_1738617123.xml · nonDerivative · entry 1

Robbins Edward Hutchinson Jr. · CIK 0001909327 · EVP, General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 447,727

F1 · shares: On February 1, 2025, 42,773 restricted stock units held by the reporting person vested and were settled in shares of common stock. Telos withheld 22,927 shares of its common stock to satisfy the reporting person's tax withholding obligation resulting from the vesting of the restricted stock units. The reporting person did not sell any shares of Telos stock to a third party as part of this transaction.

SEC source: 0000320121-24-000095 · wk-form4_1732050099.xml · nonDerivative · entry 1

Jacobs Bradley W. · CIK 0001910457 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 151,095

F1 · price: The price reported in Column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $3.34 to $3.39, inclusive. The reporting person undertakes to provide Telos Corporation, any security holder of Telos Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth in these footnotes.

SEC source: 0000320121-24-000089 · wk-form4_1723667869.xml · nonDerivative · entry 2

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 1,594,147

F2 · price: The price reported in Column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $2.29 to $2.43, inclusive. The reporting person undertakes to provide Telos Corporation, any security holder of Telos Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth in these footnotes.

SEC source: 0000320121-24-000087 · wk-form4_1723666550.xml · nonDerivative · entry 1

Jacobs Bradley W. · CIK 0001910457 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 147,095

SEC source: 0000320121-24-000090 · wk-form4_1723668168.xml · nonDerivative · entry 1

Wood John B · CIK 0001356849 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,026,925

F1 · price: The price reported in Column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $2.03 to $2.65, inclusive. The reporting person undertakes to provide Telos Corporation, any security holder of Telos Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth in these footnotes.

SEC source: 0000320121-24-000089 · wk-form4_1723667869.xml · nonDerivative · entry 1

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 1,556,610

F1 · price: The price reported in Column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $2.26 to $2.60, inclusive. The reporting person undertakes to provide Telos Corporation, any security holder of Telos Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth in these footnotes.

SEC source: 0000320121-24-000085 · wk-form4_1723666414.xml · nonDerivative · entry 1

Griffin Mark D · CIK 0001357717 · EVP, Security Solutions

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,016,878

SEC source: 0000320121-24-000080 · wk-form4_1721679090.xml · nonDerivative · entry 1

Bendza Gary Mark · CIK 0001872955 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 761,560

F1 · shares: On July 19, 2024, 15,360 restricted stock units held by the reporting person vested and were settled in shares of common stock. Telos withheld 6,929 shares of its common stock to satisfy the reporting person's tax withholding obligation resulting from the vesting of the restricted stock units. The reporting person did not sell any shares of Telos stock to a third party as part of this transaction.

SEC source: 0000320121-24-000078 · wk-form4_1718223724.xml · nonDerivative · entry 3

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 1,344,147

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $4.00 to $4.19, inclusive.

SEC source: 0000320121-24-000078 · wk-form4_1718223724.xml · nonDerivative · entry 2

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 1,248,490

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.85 to $4.09, inclusive.

SEC source: 0000320121-24-000078 · wk-form4_1718223724.xml · nonDerivative · entry 1

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 1,118,490

F1 · price: The price reported in Column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $3.99 to $4.16, inclusive. The reporting person undertakes to provide Telos Corporation, any security holder of Telos Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth in these footnotes.

SEC source: 0000320121-24-000076 · wk-form4_1717187990.xml · nonDerivative · entry 1

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 1,060,581

F1 · price: The price reported in Column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $4.35 to $4.50, inclusive. The reporting person undertakes to provide Telos Corporation, any security holder of Telos Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth in these footnotes.

SEC source: 0000320121-24-000074 · wk-form4_1717101865.xml · nonDerivative · entry 3

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 941,286

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $4.28 to $4.50, inclusive.

SEC source: 0000320121-24-000074 · wk-form4_1717101865.xml · nonDerivative · entry 2

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 787,839

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $4.39 to $4.50, inclusive.

SEC source: 0000320121-24-000074 · wk-form4_1717101865.xml · nonDerivative · entry 1

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 734,753

F1 · price: The price reported in Column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $4.31 to $4.50, inclusive. The reporting person undertakes to provide Telos Corporation, any security holder of Telos Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth in these footnotes.

SEC source: 0000320121-24-000073 · wk-form4_1717101830.xml · derivative · entry 4

Wood John B · CIK 0001356849 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,635,089

Underlying: Common Stock · 3,635,089 shares

Expires 2026-12-31

F1 · derivative.exercise_price: Each performance-based RSU presents a contingent right to receive one share of Issuer common stock. A specified number of performance-based RSUs will vest and be settled in shares of Issuer common stock upon Issuers common stock trading at or above a certain market price per share for 50 consecutive calendar days before December 31, 2026, as reported by the NASDAQ Global Market: (a) 660,925 units if trading at or above $6.00 per share; (b) 660,925 units if trading at or above $8 per share; (c) 991,388 units if trading at or above $10 per share; and (d) 1,321,851 units if trading at or above $12 per share. The reporting person may achieve one or more of these criteria. The Compensation Committee shall determine whether the performance criteria were met. The performance criteria are subject to equitable adjustment by the Compensation Committee in the event of the occurrence of extraordinary or unusual events, including without limitation acquisitions or dispositions.

F2 · derivative.exercise_date: See Footnote 1.

SEC source: 0000320121-24-000072 · wk-form4_1717101773.xml · derivative · entry 3

Bendza Gary Mark · CIK 0001872955 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,338,489

Underlying: Common Stock · 1,338,489 shares

Expires 2026-12-31

F1 · derivative.exercise_price: Each performance-based RSU presents a contingent right to receive one share of Issuer common stock. A specified number of performance-based RSUs will vest and be settled in shares of Issuer common stock upon Issuers common stock trading at or above a certain market price per share for 50 consecutive calendar days before December 31, 2026, as reported by the NASDAQ Global Market: (a) 243,362 units if trading at or above $6.00 per share; (b) 243,362 units if trading at or above $8 per share; (c) 365,042 units if trading at or above $10 per share; and (d) 486,723 units if trading at or above $12 per share. The reporting person may achieve one or more of these criteria. The Compensation Committee shall determine whether the performance criteria were met. The performance criteria are subject to equitable adjustment by the Compensation Committee in the event of the occurrence of extraordinary or unusual events, including without limitation acquisitions or dispositions.

F2 · derivative.exercise_date: See Footnote1.

SEC source: 0000320121-24-000071 · wk-form4_1717101729.xml · derivative · entry 3

Griffin Mark D · CIK 0001357717 · EVP, Security Solutions

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,052,794

Underlying: Common Stock · 1,052,794 shares

Expires 2026-12-31

F1 · derivative.exercise_price: Each performance-based RSU presents a contingent right to receive one share of Issuer common stock. A specified number of performance-based RSUs will vest and be settled in shares of Issuer common stock upon Issuers common stock trading at or above a certain market price per share for 50 consecutive calendar days before December 31, 2026, as reported by the NASDAQ Global Market: (a) 191,417 units if trading at or above $6.00 per share; (b) 191,417 units if trading at or above $8 per share; (c) 287,126 units if trading at or above $10 per share; and (d) 382,834 units if trading at or above $12 per share. The reporting person may achieve one or more of these criteria. The Compensation Committee shall determine whether the performance criteria were met. The performance criteria are subject to equitable adjustment by the Compensation Committee in the event of the occurrence of extraordinary or unusual events, including without limitation acquisitions or dispositions.

F2 · derivative.exercise_date: See Footnote 1.

SEC source: 0000320121-24-000070 · wk-form4_1717101687.xml · derivative · entry 3

Robbins Edward Hutchinson Jr. · CIK 0001909327 · EVP, General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 749,265

Underlying: Common Stock · 749,265 shares

Expires 2026-12-31

F1 · derivative.exercise_price: Each performance-based RSU presents a contingent right to receive one share of Issuer common stock. A specified number of performance-based RSUs will vest and be settled in shares of Issuer common stock upon Issuers common stock trading at or above a certain market price per share for 50 consecutive calendar days before December 31, 2026, as reported by the NASDAQ Global Market: (a) 136,230 units if trading at or above $6.00 per share; (b) 136,230 units if trading at or above $8 per share; (c) 204,345 units if trading at or above $10 per share; and (d) 272,460 units if trading at or above $12 per share. The reporting person may achieve one or more of these criteria. The Compensation Committee shall determine whether the performance criteria were met. The performance criteria are subject to equitable adjustment by the Compensation Committee in the event of the occurrence of extraordinary or unusual events, including without limitation acquisitions or dispositions.

F2 · derivative.exercise_date: See Footnote 1.

SEC source: 0000320121-24-000068 · wk-form4_1717101598.xml · derivative · entry 3

Hill Donna K. · CIK 0002012047 · VP, Human Resources

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,250

Underlying: Common Stock · 47,250 shares

Expires 2026-12-31

F1 · derivative.exercise_price: Each performance-based RSU presents a contingent right to receive one share of Issuer common stock. A specified number of performance-based RSUs will vest and be settled in shares of Issuer common stock upon Issuers common stock trading at or above a certain market price per share for 50 consecutive calendar days before December 31, 2026, as reported by the NASDAQ Global Market: (a) 8,591 units if trading at or above $6.00 per share; (b) 8,591 units if trading at or above $8 per share; (c) 12,886 units if trading at or above $10 per share; and (d) 17,182 units if trading at or above $12 per share. The reporting person may achieve one or more of these criteria. The Compensation Committee shall determine whether the performance criteria were met. The performance criteria are subject to equitable adjustment by the Compensation Committee in the event of the occurrence of extraordinary or unusual events, including without limitation acquisitions or dispositions.

F2 · derivative.exercise_date: See Footnote 1.

SEC source: 0000320121-24-000069 · wk-form4_1717101647.xml · derivative · entry 3

Cooke Malcolm G. · CIK 0002011895 · VP, Chief Info Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,113

Underlying: Common Stock · 52,113 shares

Expires 2026-12-31

F1 · derivative.exercise_price: Each performance-based RSU presents a contingent right to receive one share of Issuer common stock. A specified number of performance-based RSUs will vest and be settled in shares of Issuer common stock upon Issuers common stock trading at or above a certain market price per share for 50 consecutive calendar days before December 31, 2026, as reported by the NASDAQ Global Market: (a) 9,475 units if trading at or above $6.00 per share; (b) 9,475 units if trading at or above $8 per share; (c) 14,213 units if trading at or above $10 per share; and (d) 18,950 units if trading at or above $12 per share. The reporting person may achieve one or more of these criteria. The Compensation Committee shall determine whether the performance criteria were met. The performance criteria are subject to equitable adjustment by the Compensation Committee in the event of the occurrence of extraordinary or unusual events, including without limitation acquisitions or dispositions.

F2 · derivative.exercise_date: See Footnote 1.

SEC source: 0000320121-24-000060 · wk-form4_1716584158.xml · nonDerivative · entry 1

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 687,920

F1 · price: The price reported in Column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $3.84 to $4.00, inclusive. The reporting person undertakes to provide Telos Corporation, any security holder of Telos Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth in these footnotes.

SEC source: 0000320121-24-000057 · wk-form4_1716413091.xml · derivative · entry 11

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 58,000 shares

Expires 2033-05-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000320121-24-000057 · wk-form4_1716413091.xml · nonDerivative · entry 5

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 633,270

F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.88 to $4.10, inclusive.

SEC source: 0000320121-24-000057 · wk-form4_1716413091.xml · nonDerivative · entry 4

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,620

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000320121-24-000057 · wk-form4_1716413091.xml · nonDerivative · entry 3

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,620

F3 · shares: These shares of common stock represent restricted share units granted pursuant to an award agreement between the reporting person and the Issuer and are subject to forfeiture. The restricted share units awarded will vest and be settled in shares of Issuer common stock on May 21, 2026.

SEC source: 0000320121-24-000057 · wk-form4_1716413091.xml · nonDerivative · entry 2

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 533,022

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.78 to $4.03, inclusive.

SEC source: 0000320121-24-000056 · wk-form4_1716413046.xml · nonDerivative · entry 1

Maluda John W · CIK 0001480573 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,784

F1 · shares: These shares of common stock represent restricted share units granted pursuant to an award agreement between the reporting person and the Issuer and are subject to forfeiture. The restricted share units awarded will vest and be settled in shares of Issuer common stock on May 21, 2026.

SEC source: 0000320121-24-000053 · wk-form4_1716412924.xml · nonDerivative · entry 1

Borland David · CIK 0001356848 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,620

F1 · shares: These shares of common stock represent restricted share units granted pursuant to an award agreement between the reporting person and the Issuer and are subject to forfeiture. The restricted share units awarded will vest and be settled in shares of Issuer common stock on May 21, 2026.

SEC source: 0000320121-24-000055 · wk-form4_1716413004.xml · nonDerivative · entry 1

Jacobs Bradley W. · CIK 0001910457 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 146,095

F1 · shares: These shares of common stock represent restricted share units granted pursuant to an award agreement between the reporting person and the Issuer and are subject to forfeiture. The restricted share units awarded will vest and be settled in shares of Issuer common stock on May 21, 2026.

SEC source: 0000320121-24-000054 · wk-form4_1716412968.xml · nonDerivative · entry 1

Carroll Bonnie Lynn · CIK 0001831598 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,848

F1 · shares: These shares of common stock represent restricted share units granted pursuant to an award agreement between the reporting person and the Issuer and are subject to forfeiture. The restricted share units awarded will vest and be settled in shares of Issuer common stock on May 21, 2026.

SEC source: 0000320121-24-000052 · wk-form4_1716412889.xml · nonDerivative · entry 1

Dockery Derrick D. · CIK 0001911463 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 124,902

F1 · shares: These shares of common stock represent restricted share units granted pursuant to an award agreement between the reporting person and the Issuer and are subject to forfeiture. The restricted share units awarded will vest and be settled in shares of Issuer common stock on May 21, 2026.

SEC source: 0000320121-24-000057 · wk-form4_1716413091.xml · nonDerivative · entry 1

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 394,484

F1 · price: The price reported in Column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $3.75 to $3.80, inclusive. The reporting person undertakes to provide Telos Corporation, any security holder of Telos Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth in these footnotes.

SEC source: 0000320121-24-000032 · wk-form4_1715977533.xml · nonDerivative · entry 1

Schaufeld Fredrick · CIK 0001831624 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fredrick D. Schaufeld Rev Trust

Disclosed balance after: 386,265

F1 · price: The price reported in Column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $3.53 to $3.68, inclusive. The reporting person undertakes to provide Telos Corporation, any security holder of Telos Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth in these footnotes.

SEC source: 0000320121-24-000044 · wk-form4_1716237126.xml · nonDerivative · entry 1

Griffin Mark D · CIK 0001357717 · EVP, Security Solutions

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,006,878

F1 · shares: These shares of common stock represent restricted share units granted pursuant to an award agreement between the reporting person and the Issuer and are subject to forfeiture. The restricted share units awarded will vest and be settled in shares of Issuer common stock in installments as follows: (1) 50% will vest on May 16, 2025, and (2) 50% will vest on May16, 2026.

SEC source: 0000320121-24-000042 · wk-form4_1716237045.xml · nonDerivative · entry 1

Robbins Edward Hutchinson Jr. · CIK 0001909327 · EVP, General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 470,654

F1 · shares: These shares of common stock represent restricted share units granted pursuant to an award agreement between the reporting person and the Issuer and are subject to forfeiture. The restricted share units awarded will vest and be settled in shares of Issuer common stock in installments as follows: (1) 50% will vest on May 16, 2025, and (2) 50% will vest on May16, 2026.

SEC source: 0000320121-24-000040 · wk-form4_1716236935.xml · nonDerivative · entry 1

Harding Victoria A. · CIK 0001913497 · Controller, Chief Acct Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 111,437

F1 · shares: These shares of common stock represent restricted share units granted pursuant to an award agreement between the reporting person and the Issuer and are subject to forfeiture. The restricted share units awarded will vest and be settled in shares of Issuer common stock in installments as follows: (1) 50% will vest on May 16, 2025, and (2) 50% will vest on May16, 2026.

SEC source: 0000320121-24-000036 · wk-form4_1716236700.xml · nonDerivative · entry 1

Cooke Malcolm G. · CIK 0002011895 · VP, Chief Info Tech Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,987.091

F1 · shares: These shares of common stock represent restricted share units granted pursuant to an award agreement between the reporting person and the Issuer and are subject to forfeiture. The restricted share units awarded will vest and be settled in shares of Issuer common stock in installments as follows: (1) 50% will vest on May 16, 2025, and (2) 50% will vest on May16, 2026.