🕵️ Hologic Inc ($HOLX)
SEC insider & ownership activity, last 12 months · CIK 859737 · every row links its SEC filing
Over the last 12 months insiders sold $9.8M with no open-market buying against it. Stephen P. MacMillan sold $9.3M through a 10b5-1 trading plan in 3 lots (Sep). One red-flag 8-K in the window: Delisting notice (3.01), Apr 7, 2026.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 2 sellers, $9.8M (4 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Stephen P. MacMillan | 0 | – | 3 | $9.3M | Sep 22, 2025 |
| Christiana Stamoulis | 0 | – | 1 | $541K | Oct 20, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 8.9% | 13G | Apr 17, 2025 | filing ↗ | |
| Vanguard Capital Management | 7.5% | 13G | Apr 30, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Stamoulis Christiana | $541K | Oct 20, 2025 | filing ↗ |
| Stephen P. MacMillan | $9.3M | Sep 22, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Material agreement (1.01) | Apr 7, 2026 | filing ↗ |
| Agreement terminated (1.02) | Apr 7, 2026 | filing ↗ |
| Acquisition or disposition (2.01) | Apr 7, 2026 | filing ↗ |
| Delisting notice (3.01) | Apr 7, 2026 | filing ↗ |
| Material Modifications to Rights of Security Holders (3.03) | Apr 7, 2026 | filing ↗ |
| Change of control (5.01) | Apr 7, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 7, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Apr 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 7, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 6, 2026 | filing ↗ |
| Other events (8.01) | Apr 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 6, 2026 | filing ↗ |
| Shareholder vote (5.07) | Feb 5, 2026 | filing ↗ |
| Other events (8.01) | Feb 5, 2026 | filing ↗ |
| Earnings (2.02) | Jan 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 29, 2026 | filing ↗ |
| Other events (8.01) | Jan 26, 2026 | filing ↗ |
| Officer/director changes (5.02) | Nov 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 4, 2025 | filing ↗ |
| Earnings (2.02) | Nov 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 3, 2025 | filing ↗ |
| Material agreement (1.01) | Oct 21, 2025 | filing ↗ |
| Officer/director changes (5.02) | Oct 21, 2025 | filing ↗ |
| Other events (8.01) | Oct 21, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 21, 2025 | filing ↗ |
| Officer/director changes (5.02) | Sep 18, 2025 | filing ↗ |
| Earnings (2.02) | Jul 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 30, 2025 | filing ↗ |