Mark D. Griffin - 02 Feb 2026 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: 02 Feb 2026
Net transactions value: -$955,341
Form type: 4
Filing time: 04 Feb 2026, 16:08:19 UTC
Previous filing: 21 Oct 2025
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	04 Feb 2026	0001357717

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TLS	Common Stock	Award	$0	+379,920	+33%	$0.000000	1,534,913	02 Feb 2026	Direct	F1
transaction	TLS	Common Stock	Tax liability	$955,341	-172,756	-11%	$5.53	1,362,157	02 Feb 2026	Direct	F2
holding	TLS	Common Stock						17,870	02 Feb 2026	By 401k Plan

* 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 share units.
F2	Telos withheld 172,756 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.