Insider · CIK 0001676880
Ronald Harold Wilfred Cooper
ceopresidentofficerdirector
Files at CCCC (C4 Therapeutics, Inc.), GBIO (Generation Bio Co.), ENGN (enGene Holdings Inc.). First filing -, latest -.
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 / 0
$0 bought, $0 sold
Signals
This insider’s open-market buys and sells, scored.
No scored open-market trades yet.
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Feb 9, 2026 | GBIO Generation Bio Co. | UTender of shares Common Stock | -950 | - | - | 0 | Feb 9, 2026 |
| Feb 9, 2026 | GBIO Generation Bio Co. | DDisposition to issuer Stock Option (right to buy)derivative | -3,000 | - | - | 0 | Feb 9, 2026 |
| Feb 9, 2026 | GBIO Generation Bio Co. | DDisposition to issuer Stock Option (right to buy)derivative | -3,000 | - | - | 0 | Feb 9, 2026 |
| Feb 9, 2026 | GBIO Generation Bio Co. | DDisposition to issuer Stock Option (right to buy)derivative | -1,920 | - | - | 0 | Feb 9, 2026 |
| Feb 9, 2026 | GBIO Generation Bio Co. | DDisposition to issuer Stock Option (right to buy)derivative | -2,500 | - | - | 0 | Feb 9, 2026 |
| Feb 9, 2026 | GBIO Generation Bio Co. | DDisposition to issuer Stock Option (right to buy)derivative | -6,000 | - | - | 0 | Feb 9, 2026 |
| Jan 30, 2026 | ENGN enGene Holdings Inc. | AGrant or award Stock Option (Right to Buy)derivative | +801,000 | $0.00 | $0 | 801,000 | Feb 3, 2026 |
| Jun 18, 2025 | CCCC C4 Therapeutics, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +35,500 | $0.00 | $0 | 35,500 | Jun 20, 2025 |
| Jun 4, 2025 | GBIO Generation Bio Co. | AGrant or award Stock Option (right to buy)derivative | +30,000 | $0.00 | $0 | 30,000 | Jun 6, 2025 |
| Jan 29, 2025 | ENGN enGene Holdings Inc. | AGrant or award Stock Option (Right to Buy)derivative | +850,000 | $0.00 | $0 | 850,000 | Jan 31, 2025 |
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.