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. 97.9% of the shares are freely tradable; institutional investors hold 127.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 15.77 | 5,134,027 | +0.7 | 03/31/2026 |
| HHG PLC | 5.61 | 1,825,651 | +26.0 | 03/31/2026 |
| Principal Financial Group Inc | 5.01 | 1,632,360 | +26.0 | 06/30/2026 |
| Amvescap Plc. | 4.89 | 1,591,909 | +35.5 | 03/31/2026 |
| Fuller & Thaler Asset Management Inc | 4.61 | 1,499,584 | -50.0 | 03/31/2026 |
| Renaissance Technologies Corp | 4.51 | 1,469,449 | -9.1 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.09 | 1,981,601 | +0.0 | 08/31/2026 |
| FullerThaler Behavioral Sm-Cp Eq R6 | 4.80 | 1,561,408 | +9.1 | 06/30/2026 |
| FullerThaler Beh Small-Cap Equity SMA | 4.80 | 1,561,408 | +9.1 | 06/30/2026 |
| FullerThaler Behavioral Small-Cap Equity | 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: September 17, 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.