Insider · CIK 0001766979
Matthew Charles Brown
cfoofficer
Files at TENB (Tenable Holdings, Inc.), ALTR (Altair Engineering Inc.). First filing Dec 26, 2024, latest Mar 5, 2025.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 3
$0 bought, $622k sold
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 46Moderate | Altair Engineering Inc. | $83k 742 shares | -1% | - | |
| 54Moderate | Altair Engineering Inc. | $425k 3,811 shares | -5% | - | |
| 40Moderate | Altair Engineering Inc. | $114k 1,048 shares | -2% | - |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Feb 26, 2026 | TENB Tenable Holdings, Inc. | AGrant or award Restricted Stock Unitsderivative | +141,898 | $0.00 | $0 | 141,898 | Feb 27, 2026 |
| Feb 23, 2026 | TENB Tenable Holdings, Inc. | MOption exercise Common Stock | +14,544 | $0.00 | $0 | 23,810 | Feb 25, 2026 |
| Feb 23, 2026 | TENB Tenable Holdings, Inc. | FTax withholding Common Stock | -5,269 | $17.55 | $92k | 18,541 | Feb 25, 2026 |
| Feb 23, 2026 | TENB Tenable Holdings, Inc. | MOption exercise Restricted Stock Unitsderivative | -14,544 | $0.00 | $0 | 203,624 | Feb 25, 2026 |
| Nov 21, 2025 | TENB Tenable Holdings, Inc. | MOption exercise Common Stock | +14,544 | $0.00 | $0 | 14,544 | Nov 25, 2025 |
| Nov 21, 2025 | TENB Tenable Holdings, Inc. | FTax withholding Common Stock | -5,278 | $26.06 | $138k | 9,266 | Nov 25, 2025 |
| Nov 21, 2025 | TENB Tenable Holdings, Inc. | MOption exercise Restricted Stock Unitsderivative | -14,544 | $0.00 | $0 | 218,168 | Nov 25, 2025 |
| Aug 21, 2025 | TENB Tenable Holdings, Inc. | AGrant or award Restricted Stock Unitsderivative | +232,712 | $0.00 | $0 | 232,712 | Aug 25, 2025 |
| Mar 26, 2025 | ALTR Altair Engineering Inc. | DDisposition to issuer Class A Common Stock | -66,125 | $113.00 | $7.5M | 0 | Mar 26, 2025 |
| Mar 26, 2025 | ALTR Altair Engineering Inc. | DDisposition to issuer Class A Common Stock Optionderivative | -45,000 | $55.30 | $2.5M | 0 | Mar 26, 2025 |
| Mar 26, 2025 | ALTR Altair Engineering Inc. | DDisposition to issuer Class A Common Stock Optionderivative | -12,000 | $51.21 | $615k | 0 | Mar 26, 2025 |
| Mar 26, 2025 | ALTR Altair Engineering Inc. | DDisposition to issuer Class A Common Stock Optionderivative | -8,000 | $50.09 | $401k | 0 | Mar 26, 2025 |
| Mar 26, 2025 | ALTR Altair Engineering Inc. | DDisposition to issuer Class A Common Stock Optionderivative | -24,000 | $67.09 | $1.6M | 0 | Mar 26, 2025 |
| Mar 26, 2025 | ALTR Altair Engineering Inc. | DDisposition to issuer Class A Common Stock Optionderivative | -20,625 | $47.81 | $986k | 0 | Mar 26, 2025 |
| Mar 26, 2025 | ALTR Altair Engineering Inc. | DDisposition to issuer Class A Common Stock Optionderivative | -21,563 | $33.97 | $732k | 0 | Mar 26, 2025 |
| Mar 6, 2025 | ALTR Altair Engineering Inc. | GGift Class A Common Stock | -2,527 | $0.00 | $0 | 66,125 | Mar 6, 2025 |
| Mar 3, 2025 | ALTR Altair Engineering Inc. | SOpen-market sale Class A Common Stock | -742 | $111.45 | $83k | 68,652 | Mar 5, 2025 |
| Feb 26, 2025 | ALTR Altair Engineering Inc. | SOpen-market sale Class A Common Stock | -3,811 | $111.53 | $425k | 69,394 | Feb 27, 2025 |
| Feb 12, 2025 | ALTR Altair Engineering Inc. | AGrant or award Class A Common Stock | +17,613 | $0.00 | $0 | 73,205 | Feb 14, 2025 |
| Jan 14, 2025 | ALTR Altair Engineering Inc. | AGrant or award Class A Common Stock | +73 | $82.42 | $6,017 | 55,592 | Jan 16, 2025 |
| Dec 23, 2024 | ALTR Altair Engineering Inc. | SOpen-market sale Class A Common Stock | -1,048 | $108.90 | $114k | 55,519 | Dec 26, 2024 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.