🕵️ Collegium Pharmaceutical, Inc ($COLL)
SEC insider & ownership activity, last 12 months · CIK 1267565 · every row links its SEC filing
Over the last 12 months insiders sold $7.2M with no open-market buying against it. Dreyer Scott sold $2.9M through a 10b5-1 trading plan in 4 lots (Dec–Mar). No red-flag 8-Ks in the window.
🚨 2 signals active —
planned-vs-executed verdicts, pre-event flags, and cluster context live in the
API and the
alerts bot.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 8 sellers, $7.2M (14 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Dreyer Scott | 0 | – | 4 | $2.9M | Mar 3, 2026 |
| John A. Fallon | 0 | – | 1 | $1.6M | Nov 12, 2025 |
| Tupper Colleen | 0 | – | 2 | $1.2M | Nov 6, 2025 |
| Dieter David | 0 | – | 2 | $716K | Mar 18, 2026 |
| Garen G. Bohlin | 0 | – | 1 | $323K | May 11, 2026 |
| Rita J. Balice-Gordon | 0 | – | 1 | $172K | Dec 5, 2025 |
| Lurker Nancy | 0 | – | 1 | $162K | May 13, 2026 |
| Freund John Gordon | 0 | – | 2 | $143K | May 18, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 15.6% | 13G | Apr 28, 2025 | filing ↗ | |
| Janus Henderson Group PLC | 5.8% | 13G | May 15, 2026 | filing ↗ | |
| Millennium Management LLC | 5.6% | 13G | Aug 24, 2026 | filing ↗ | |
| Millennium Group Management LLC | 5.6% | 13G | Aug 24, 2026 | filing ↗ | |
| Israel A. Englander | 5.6% | 13G | Aug 24, 2026 | filing ↗ | |
| Integrated CORE Strategies (US) LLC | 5.4% | 13G | Aug 24, 2026 | filing ↗ | |
| Fuller & Thaler Asset Management, Inc. | 5.0% | 13G | Aug 14, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.0% | 13G | Jul 31, 2026 | filing ↗ | |
| Invesco Ltd. | 5.0% | 13G | May 8, 2026 | filing ↗ | |
| Principal Global Investors | 5.0% | 13G | Aug 5, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| John A. Fallon | $497K | Jul 17, 2026 | filing ↗ |
| John A. Fallon | $294K | Jul 15, 2026 | filing ↗ |
| Freund John Gordon | $1K | May 18, 2026 | filing ↗ |
| Freund John Gordon | $143K | May 15, 2026 | filing ↗ |
| Lurker Nancy | $162K | May 13, 2026 | filing ↗ |
| Garen G. Bohlin | $323K | May 11, 2026 | filing ↗ |
| Dieter David | $488K | Mar 18, 2026 | filing ↗ |
| Dieter David | $228K | Mar 9, 2026 | filing ↗ |
| Dreyer Scott | $2.0M | Mar 3, 2026 | filing ↗ |
| Dreyer Scott | $848K | Dec 8, 2025 | filing ↗ |
| Rita Balice-Gordon | $172K | Dec 5, 2025 | filing ↗ |
| John A. Fallon | $1.6M | Nov 12, 2025 | filing ↗ |
| Tupper Colleen | $1.2M | Nov 6, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Aug 12, 2026 | filing ↗ |
| Earnings (2.02) | Aug 6, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 6, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 12, 2026 | filing ↗ |
| Acquisition or disposition (2.01) | May 12, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 12, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 12, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 2, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 19, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 19, 2026 | filing ↗ |
| Earnings (2.02) | Feb 26, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 8, 2026 | filing ↗ |
| Material agreement (1.01) | Dec 23, 2025 | filing ↗ |
| Agreement terminated (1.02) | Dec 23, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Dec 23, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Dec 23, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 23, 2025 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |