Mark D. Griffin - 20 Oct 2025 Form 4 Insider Report for TELOS CORP (TLS)

Role
EVP, Security Solutions
Signature
/s/ Helen M. Oh, attorney-in-fact
Issuer symbol
TLS
Transactions as of
20 Oct 2025
Net transactions value
-$901,743
Form type
4
Filing time
21 Oct 2025, 16:13:49 UTC
Previous filing
02 Jul 2025
Next filing
04 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Griffin Mark D EVP, Security Solutions C/O TELOS CORPORATION, 19886 ASHBURN ROAD, ASHBURN /s/ Helen M. Oh, attorney-in-fact 21 Oct 2025 0001357717

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TLS Common Stock Award $0 +90,189 +9% $0.000000 1,090,582 20 Oct 2025 Direct F1
transaction TLS Common Stock Options Exercise +191,417 +18% 1,281,999 20 Oct 2025 Direct F2
transaction TLS Common Stock Tax liability $901,743 -127,006 -9.9% $7.10 1,154,993 20 Oct 2025 Direct F3
holding TLS Common Stock 17,870 20 Oct 2025 By 401k Plan

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction TLS Performance-Based RSUs Options Exercise -191,417 -18% 861,377 20 Oct 2025 Common Stock 191,417 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The reporting person acquired these shares upon the vesting of certain performance stock units.
F2 Each performance-based RSU presents a contingent right to receive one share of Telos common stock. These performance-based RSUs vested and settled in shares of Telos common stock once Telos' common stock traded at or above $6.00 per share for 50 consecutive calendar days on the NASDAQ Global Market.
F3 Telos withheld 127,006 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.