As of June 09, 2026, Collegium Pharmaceutical's top three insider holders are Capital Management Lp Rubric (TenPercentOwner, 3.13Mn shares), Joseph Ciaffoni (President And Ceo, 444.87K shares), Vikram Karnani (President And Ceo, 197.86K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Garen G Bohlin | - | 62,259 | 0 | 19 May, 2025 |
| Gino Santini | - | 95,042 | 0 | 19 Aug, 2025 |
| John Gordon Freund | - | 70,658 | 0 | 11 Jun, 2025 |
| Joseph Ciaffoni | President And Ceo | 444,867 | 0 | 14 Feb, 2024 |
| Michael Thomas Heffernan | Chairman, President And Ceo | 50,328 | 0 | 12 Feb, 2025 |
| Nancy Lurker | - | 22,517 | 0 | 19 May, 2025 |
| John A. Fallon | - | 64,634 | 0 | 14 Nov, 2025 |
| Carlos V Paya | - | 19,582 | 0 | 19 May, 2025 |
| Gwen A Melincoff | - | 52,468 | 0 | 16 May, 2024 |
| Alison B Fleming | Evp Chief Technical Officer | 143,694 | 0 | 12 Aug, 2021 |
| Neil F. Mcfarlane | - | 49,365 | 0 | 16 May, 2024 |
| Capital Management Lp Rubric | - | 0 | 3,132,743 | 15 Aug, 2025 |
| Vikram Karnani | President And Ceo | 197,864 | 0 | 12 Feb, 2026 |
| Shirley R. Kuhlmann | Evp And General Counsel | 108,137 | 0 | 06 Mar, 2025 |
| Scott Dreyer | Evp Chief Commercial Officer | 71,770 | 0 | 05 Mar, 2026 |
| Thomas B Smith | Evp And Chief Medical Officer | 90,651 | 0 | 12 Feb, 2026 |
| Richard Malamut | Evp And Chief Medical Officer | 130,264 | 0 | 14 Feb, 2022 |
| Rita J. Balice-Gordon | - | 52,629 | 0 | 09 Dec, 2025 |
| Colleen Tupper | Evp Chief Financial Officer | 147,282 | 0 | 12 Feb, 2026 |
| David Dieter | Evp General Counsel | 77,071 | 0 | 20 Mar, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 17 Mar, 2026 | David Dieter | Common Stock | D | 8,840 | $35.72 | 68,231 | D | F |
| 17 Mar, 2026 | David Dieter | Common Stock | D | 8,840 | $35.72 | 68,231 | D | F |
| 18 Mar, 2026 | David Dieter | Common Stock | D | 13,976 | $34.92 | 77,071 | D | S |
| 18 Mar, 2026 | David Dieter | Common Stock | D | 13,976 | $34.92 | 77,071 | D | S |
| 09 Mar, 2026 | David Dieter | Common Stock | D | 6,224 | $36.65 | 91,047 | D | S |
| 09 Mar, 2026 | David Dieter | Common Stock | D | 6,224 | $36.65 | 91,047 | D | S |
| 03 Mar, 2026 | Scott Dreyer | Common Stock | D | 46,417 | $40.36 | 75,329 | D | S |
| 03 Mar, 2026 | Scott Dreyer | Common Stock | D | 46,417 | $40.36 | 75,329 | D | S |
| 03 Mar, 2026 | Scott Dreyer | Common Stock | D | 3,559 | $40.99 | 71,770 | D | S |
| 03 Mar, 2026 | Scott Dreyer | Common Stock | D | 3,559 | $40.99 | 71,770 | D | S |
| 10 Feb, 2026 | Scott Dreyer | Common Stock | A | 19,023 | $0.00 | 122,636 | D | A |
| 10 Feb, 2026 | David Dieter | Common Stock | A | 22,194 | $0.00 | 91,047 | D | A |
| 10 Feb, 2026 | David Dieter | Common Stock | A | 22,194 | $0.00 | 91,047 | D | A |
| 10 Feb, 2026 | Colleen Tupper | Common Stock | A | 26,421 | $0.00 | 153,088 | D | A |
| 10 Feb, 2026 | Scott Dreyer | Common Stock | A | 19,023 | $0.00 | 122,636 | D | A |
| 10 Feb, 2026 | Vikram Karnani | Common Stock | A | 79,264 | $0.00 | 176,629 | D | A |
| 10 Feb, 2026 | Colleen Tupper | Common Stock | A | 26,421 | $0.00 | 153,088 | D | A |
| 10 Feb, 2026 | Thomas B Smith | Common Stock | A | 14,268 | $0.00 | 85,312 | D | A |
| 10 Feb, 2026 | Vikram Karnani | Common Stock | A | 79,264 | $0.00 | 176,629 | D | A |
| 10 Feb, 2026 | Thomas B Smith | Common Stock | A | 14,268 | $0.00 | 85,312 | D | A |