Brown Matthew Charles Insider Trading -- Recent SEC Form 4 Transactions

Brown Matthew Charles (CIK 1766979) reported 10 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-02-25). Recent activity: Buy TENB (14,544 shares), Sell TENB (5,269 shares), Buy TENB (14,544 shares), Sell TENB (5,278 shares), Sell ALTR (66,125 shares). Source: SEC Form 4.

DateCompanyRoleTypeSharesValue
2026-02-25Tenable Holdings, Inc. (TENB)Chief Financial OfficerBuy14,544$0
2026-02-25Tenable Holdings, Inc. (TENB)Chief Financial OfficerSell5,269$92,471
2025-11-25Tenable Holdings, Inc. (TENB)Chief Financial OfficerBuy14,544$0
2025-11-25Tenable Holdings, Inc. (TENB)Chief Financial OfficerSell5,278$137,545
2025-03-26Altair Engineering Inc. (ALTR)Chief Financial OfficerSell66,125$7.5M
2025-03-06Altair Engineering Inc. (ALTR)Chief Financial OfficerSell2,527$0
2025-03-05Altair Engineering Inc. (ALTR)Chief Financial OfficerSell742$82,696
2025-02-27Altair Engineering Inc. (ALTR)Chief Financial OfficerSell3,811$425,041
2025-02-14Altair Engineering Inc. (ALTR)Chief Financial OfficerBuy17,613$0
2025-01-16Altair Engineering Inc. (ALTR)Chief Financial OfficerBuy73$6,017

Source: SEC Form 4 filings · as of 2026-02-25