Collegium Pharmaceutical, Inc.
US ˙ NasdaqGS ˙ US19459J1043

SecurityCOLL / Collegium Pharmaceutical, Inc.
InstitutionEasterly Investment Partners Llc
Latest Disclosed Ownership37,231 shares
Latest Disclosed Value $ 1,215,497
Easterly Investment Partners Llc reports 5.98% increase in ownership of COLL / Collegium Pharmaceutical, Inc.

On May 11, 2026 - Easterly Investment Partners Llc filed a 13F-HR form disclosing ownership of 37,231 shares of Collegium Pharmaceutical, Inc. (US:COLL) valued at $1,231,229 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 35,131 shares of Collegium Pharmaceutical, Inc.. This represents a change in shares of 5.98% during the quarter. The current value of the position is $1,156,395 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)
2026-05-11 2026-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 37,231 2,100 5.98 1,215 -25.28 0.0930
2026-02-10 2025-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 35,131 -16,281 -31.67 1,627 -9.57 0.0998
2025-11-12 2025-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 51,412 -1,000 -1.91 1,799 16.07 0.1217
2025-07-29 2025-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 52,412 -3,746 -6.67 1,550 -7.58 0.1111
2025-05-02 2025-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 56,158 0 0.00 1,676 4.23 0.1395
2025-02-12 2024-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 56,158 0 0.00 1,609 -25.86 0.1263
2024-11-01 2024-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 56,158 13,529 31.74 2,170 58.09 0.1739
2024-07-25 2024-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 42,629 -7,000 -14.10 1,373 -28.76 0.1206
2024-05-03 2024-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 49,629 -22 -0.04 1,927 26.05 0.1472
2024-02-14 2023-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 49,651 0 0.00 1,528 37.78 0.1634
2023-11-13 2023-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 49,651 0 0.00 1,110 3.94 0.1221
2023-11-13 2023-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 49,651 24,622 98.37 1,067 77.83 0.0944
2023-11-13 2023-03-31 13F/A-1 COLLEGIUM PHARMACEUTICAL COM 19459J104 25,029 3,000 13.62 600 17.42 0.0528
2023-05-02 2023-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 25,439 3,410 610 0.0422
2023-11-13 2022-12-31 13F/A-1 COLLEGIUM PHARMACEUTICAL COM 19459J104 22,029 0 0.00 511 44.76 0.0441
2023-02-10 2022-12-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 21,619 -410 502 0.0498
2022-11-09 2022-09-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 22,029 0 0.00 353 -9.49 0.0338
2022-08-10 2022-06-30 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 22,029 -2,000 -8.32 390 -20.25 0.0347
2022-05-13 2022-03-31 13F COLLEGIUM PHARMACEUTICAL COM 19459J104 24,029 24,029 489 0.0370
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.