Collegium Pharmaceutical Inc
Ownership
Ownership Structure
Who owns Collegium Pharmaceutical Inc (COLL)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 91.4% of the shares are freely tradable; institutional investors hold 127.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 16.71 | 5,441,202 | +6.0 | 06/30/2026 |
| Jupiter Topco LLC | 6.60 | 2,147,072 | +0.0 | 06/30/2026 |
| Amvescap Plc. | 5.78 | 1,882,499 | +18.3 | 06/30/2026 |
| HHG PLC | 5.61 | 1,825,651 | +26.0 | 03/31/2026 |
| Fuller & Thaler Asset Management Inc | 5.02 | 1,632,781 | +8.9 | 06/30/2026 |
| Principal Financial Group Inc | 5.01 | 1,632,360 | +26.0 | 06/30/2026 |
| State Street Corp | 4.70 | 1,528,881 | +7.3 | 06/30/2026 |
| Massachusetts Financial Services Company | 4.32 | 1,405,567 | +2.9 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 5.95 | 1,937,273 | +0.0 | 09/30/2026 |
| FullerThaler Behavioral Sm-Cp Eq R6 | 4.80 | 1,561,408 | +9.1 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.