Collegium Pharmaceutical, Inc.
US ˙ NasdaqGS ˙ US19459J1043

SecurityCOLL / Collegium Pharmaceutical, Inc.
InstitutionFmr Llc
Latest Disclosed Ownership66,454 shares
Latest Disclosed Value $ 2,197,644
Fmr Llc reports 11.01% increase in ownership of COLL / Collegium Pharmaceutical, Inc.

On May 15, 2026 - Fmr Llc filed a 13F-HR form disclosing ownership of 66,454 shares of Collegium Pharmaceutical, Inc. (US:COLL) valued at $2,197,634 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 59,862 shares of Collegium Pharmaceutical, Inc.. This represents a change in shares of 11.01% during the quarter. The current value of the position is $2,064,061 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 66,454 6,592 11.01 2,198 -20.71 0.0000
2026-02-17 2025-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 59,862 1,000 1.70 2,772 34.58 0.0001
2025-11-13 2025-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 58,862 6,303 11.99 2,060 32.50 0.0001
2025-08-14 2025-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 52,559 2,273 4.52 1,554 3.53 0.0001
2025-05-12 2025-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 50,286 -9,321 -15.64 1,501 -12.07 0.0001
2025-02-13 2024-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 59,607 21,855 57.89 1,708 17.08 0.0001
2024-11-13 2024-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 37,752 35,439 1,532.17 1,459 1,870.27 0.0001
2024-08-13 2024-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 2,313 -403 -14.84 74 -29.52 0.0000
2024-05-13 2024-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 2,716 77 2.92 105 29.63 0.0000
2024-02-13 2023-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 2,639 83 3.25 81 42.11 0.0000
2023-11-13 2023-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 2,556 284 12.50 57 18.75 0.0000
2023-08-11 2023-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 2,272 -54 -2.32 49 -12.73 0.0000
2023-08-11 2023-03-31 13F/A-1 COLLEGIUM PHARMACEUTICAL COM 19459J104 2,326 322 16.07 56 19.57 0.0000
2023-05-11 2023-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 2,326 322 56 0.0000
2023-02-13 2022-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 2,004 -36 -1.76 46 43.75 0.0000
2022-11-10 2022-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 2,040 -323 -13.67 32 -23.81 0.0000
2022-08-12 2022-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 2,363 125 5.59 42 -8.70 0.0000
2022-05-13 2022-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 2,238 1,316 142.73 46 170.59 0.0000
2022-02-14 2021-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 922 0 0.00 17 -5.56 0.0000
2022-02-14 2021-09-30 13F/A-1 COLLEGIUM PHARMACEUTICAL COM 19459J104 922 0 0.00 18 -18.18 0.0000
2021-11-15 2021-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 922 0 18 0.0000
2021-08-13 2021-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 922 0 0.00 22 0.00 0.0000
2021-05-14 2021-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 922 -966 -51.17 22 -42.11 0.0000
2021-02-08 2020-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 1,888 1,888 38 0.0000
2020-05-14 2020-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 0 -24 -100.00 0 0.0000
2020-02-07 2019-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 24 -690,436 -100.00 0 -100.00
2019-11-13 2019-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 690,460 0 0.00 7,926 -12.70 0.0010
2019-08-13 2019-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 690,460 34 0.00 9,079 -13.14 0.0011
2019-05-13 2019-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 690,426 -22 -0.00 10,453 -11.83 0.0013
2019-02-13 2018-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 690,448 -5,924 -0.85 11,855 15.50 0.0016
2018-11-09 2018-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 696,372 -133,579 -16.09 10,264 -48.15 0.0012
2018-08-10 2018-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 829,951 0 0.00 19,794 -6.65 0.0023
2018-05-14 2018-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 829,951 387,451 87.56 21,205 159.58 0.0025
2018-02-12 2017-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 442,500 442,500 8,169 0.0010
2017-11-13 2017-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 0 -220,043 -100.00 0 -100.00
2017-08-29 2017-06-30 13F/A-1 COLLEGIUM PHARMACEUTICAL COM 19459J104 220,043 43 0.02 2,753 24.40 0.0003
2017-08-11 2017-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 220,043 43 2,753
2017-05-11 2017-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 220,000 -695,673 -75.97 2,213 -84.48 0.0003
2017-02-10 2016-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 915,673 153,600 20.16 14,257 -2.87 0.0019
2016-11-14 2016-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 762,073 -40,300 -5.02 14,678 54.38 0.0020
2016-08-11 2016-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 802,373 242,073 43.20 9,508 -6.50 0.0013
2016-05-16 2016-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 560,300 -19,700 -3.40 10,169 -36.24 0.0014
2016-02-12 2015-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 580,000 130,000 28.89 15,950 60.30 0.0021
2015-11-10 2015-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 450,000 0 0.00 9,950 23.94 0.0014
2015-08-25 2015-06-30 13F/A-1 COLLEGIUM PHARMACEUTICAL COM 19459J104 450,000 450,000 8,028 0.0010
2015-08-13 2015-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 450,000 8,028 0.0010
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.