Giroux Richard
Officer · MGTX
As of 2026-09-16, Giroux Richard has 32 Form 4 transactions on record across 1 company — 17 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in July in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $11.6M
- Indirect $0
| MGTX | direct | 908,530 sh | $11.6M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-07-21 | MGTX | Sale | 56,000 @ $12.51 | $701K | −5.8% of holding | 908,530 | Form 4 |
| 2026-04-21 | MGTX | Sale | 56,000 @ $10.22 | $572K | −5.4% of holding | 971,530 | Form 4 |
| 2025-10-21 | MGTX | Sale | 24,000 @ $8.87 | $213K | −2.8% of holding | 829,494 | Form 4 |
| 2025-07-22 | MGTX | Sale | 24,000 @ $8.52 | $204K | −2.7% of holding | 853,494 | Form 4 |
| 2025-04-22 | MGTX | Sale | 24,000 @ $6.00 | $144K | −2.6% of holding | 882,494 | Form 4 |
| 2025-01-21 | MGTX | Sale | 24,000 @ $6.29 | $151K | −2.7% of holding | 849,947 | Form 4 |
26 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-25 | MGTX | Award / grant | 980,000 | 980,000 | Form 4 |
| 2026-05-27 | MGTX | Gift | 7,000 | 964,530 | Form 4 |
| 2026-02-21 | MGTX | Withheld for tax | 31,726 | 1,027,530 | Form 4 |
| 2026-02-21 | MGTX | Option exercise | 60,000 | 60,000 | Form 4 |
| 2026-02-21 | MGTX | Option exercise | 60,000 | 1,059,256 | Form 4 |
| 2026-02-21 | MGTX | Option exercise | 60,000 | 1,059,256 | Form 4 |
| 2026-01-17 | MGTX | Withheld for tax | 163,916 | 999,256 | Form 4 |
| 2026-01-17 | MGTX | Option exercise | 310,000 | 310,000 | Form 4 |
| 2026-01-17 | MGTX | Option exercise | 310,000 | 1,163,172 | Form 4 |
| 2026-01-17 | MGTX | Option exercise | 310,000 | 1,163,172 | Form 4 |
| 2026-01-07 | MGTX | Withheld for tax | 28,822 | 853,172 | Form 4 |
| 2026-01-07 | MGTX | Option exercise | 52,500 | 0 | Form 4 |
| 2026-01-07 | MGTX | Option exercise | 52,500 | 881,994 | Form 4 |
| 2026-01-07 | MGTX | Option exercise | 52,500 | 881,994 | Form 4 |
| 2025-06-30 | MGTX | Gift | 5,000 | 877,494 | Form 4 |
| 2025-04-03 | MGTX | Award / grant | 950,000 | 950,000 | Form 4 |
| 2025-02-21 | MGTX | Withheld for tax | 63,452 | 906,495 | Form 4 |
| 2025-02-21 | MGTX | Option exercise | 120,000 | 120,000 | Form 4 |
| 2025-02-21 | MGTX | Option exercise | 120,000 | 969,947 | Form 4 |
| 2025-02-21 | MGTX | Option exercise | 120,000 | 969,947 | Form 4 |
| 2025-01-14 | MGTX | Withheld for tax | 13,219 | 873,947 | Form 4 |
| 2025-01-14 | MGTX | Option exercise | 25,000 | 0 | Form 4 |
| 2025-01-14 | MGTX | Option exercise | 25,000 | 887,166 | Form 4 |
| 2025-01-07 | MGTX | Withheld for tax | 27,760 | 862,166 | Form 4 |
| 2025-01-07 | MGTX | Option exercise | 52,500 | 52,500 | Form 4 |
| 2025-01-07 | MGTX | Option exercise | 52,500 | 889,926 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.