COLLEGIUM PHARMACEUTICAL, INC insider trading
COLL$22.02+0.18 (+0.82%)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (-35.8%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26
Unlock quarterly net flowKey players
- VKVikram Karnani0.6078%
- CTColleen Tupper0.4524%
- JGJohn Gordon Freund0.3554%
- GSGino Santini0.3455%
- SRShirley R. Kuhlmann0.3322%
- TBThomas B. Smith0.2785%
- SDScott Dreyer0.2205%
- GGGaren G. Bohlin0.2181%
- DDDavid Dieter0.2096%
- JAJohn A. Fallon0.1985%
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| COLL | John Gordon Freund | Open market sell$681 | 0.0% | $34.05 | $681 | May 18, 2026 | May 20, 2026 |
| COLL | Nancy Lurker | Open market sell$162K | -20.0% | $35.97 | $162K | May 13, 2026 | May 15, 2026 |
| COLL | David Dieter | Open market sell$488K | -15.4% | $34.92 | $488K | Mar 18, 2026 | Mar 20, 2026 |
| COLL | David Dieter | Open market sell$228K | -6.4% | $36.65 | $228K | Mar 9, 2026 | Mar 11, 2026 |
| COLL | Scott Dreyer | Open market sell$146K | -4.7% | $40.99 | $146K | Mar 3, 2026 | Mar 5, 2026 |
| COLL | Scott Dreyer | Open market sell$1.87M | -38.1% | $40.36 | $1.87M | Mar 3, 2026 | Mar 5, 2026 |
| COLL | Rita J. Balice-Gordon | Open market sell$172K | -6.5% | $47.03 | $172K | Dec 5, 2025 | Dec 9, 2025 |
| COLL | Colleen Tupper | Open market sell$201K | -3.7% | $41.28 | $201K | Nov 6, 2025 | Nov 7, 2025 |
| COLL | Colleen Tupper | Open market sell$1.02M | -16.1% | $40.38 | $1.02M | Nov 6, 2025 | Nov 7, 2025 |