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CIK 0000320121 · Accelerated filer<br>Smaller reporting company

Ticker
TLS
Exchange
Nasdaq
Industry
Services-Computer Integrated Systems Design
FY end
Dec 31
Incorporated
MD
Entity type
operating
EIN
520880974
Phone
7034716000
Business address
19886 ASHBURN ROAD, ASHBURN, VA, 20147
Former names
C3 INC
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$2,534,591
in 7 filings

Net −$2,534,591. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-03-19 Terreri Donald Joseph Controller, Chief Acct Officer Shares withheld for taxes −12,587 $4.27 $54K 21,577
2026-03-19 Hill Donna K. VP, Human Resources Shares withheld for taxes −12,210 $4.27 $52K 102,629
2026-03-19 Cooke Malcolm G. VP, Chief Info Tech Officer Shares withheld for taxes −13,069 $4.27 $56K 139,227.09
2026-03-19 Dockery Derrick D. Director Sale −4,100 $4.18 $17K 178,500
2026-03-19 Robbins Edward Hutchinson Jr. EVP, General Counsel Shares withheld for taxes −50,529 $4.27 $216K 619,763
2026-03-19 Bendza Gary Mark EVP, CFO Shares withheld for taxes −49,477 $4.27 $211K 961,550
2026-03-19 Griffin Mark D EVP, Security Solutions Shares withheld for taxes −51,286 $4.27 $219K 1,424,587
2026-03-19 Wood John B Chairman and CEO Shares withheld for taxes −96,539 $4.27 $412K 5,216,228
2026-03-18 Terreri Donald Joseph Controller, Chief Acct Officer Grant or award +24,973 34,164
2026-03-18 Hill Donna K. VP, Human Resources Grant or award +39,243 114,839
2026-03-18 Cooke Malcolm G. VP, Chief Info Tech Officer Grant or award +42,811 152,296.09
2026-03-18 Robbins Edward Hutchinson Jr. EVP, General Counsel Grant or award +103,014 670,292
2026-03-18 Bendza Gary Mark EVP, CFO Grant or award +109,703 1,011,027
2026-03-18 Griffin Mark D EVP, Security Solutions Grant or award +113,716 1,475,873
2026-03-18 Wood John B Chairman and CEO Grant or award +214,054 5,312,767
2026-03-18 Robbins Edward Hutchinson Jr. EVP, General Counsel Sale −64,527 $4.02 $259K 567,278
2026-03-17 Robbins Edward Hutchinson Jr. EVP, General Counsel Sale −37,096 $4.01 $149K 631,805
2026-02-02 Hill Donna K. VP, Human Resources Grant or award +17,051 81,633
2026-02-02 Hill Donna K. VP, Human Resources Shares withheld for taxes −6,037 $5.53 $33K 75,596
2026-02-02 Cooke Malcolm G. VP, Chief Info Tech Officer Grant or award +18,806 116,143.09

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