Collegium Pharmaceutical, Inc. (COLL)
Nasdaq: COLL · Pharmaceutical Preparations · Stoughton, MA · filing with the SEC since 2003
Grade6.4
◀ Past 7.8● Present 6.1▶ Future 5.4
Who owns Collegium Pharmaceutical, Inc.
As filed with the SECHolders of 5% or more
7
Blackrock, Inc. holds 15.6% of Common Stock, as its SCHEDULE 13G/A filed Apr 28, 2025 says.
Directors and officers
13
report now, of 25 people on the record since 2015. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 7 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Apr 28, 2025 · Common Stock
Millennium Management LLC
SCHEDULE 13G/A · filed Oct 8, 2026 · Common Stock, par value $0.001 per share · 5.6% in Aug 24, 2026
Janus Henderson Group PLC
SCHEDULE 13G · filed May 15, 2026 · Common Stock
Fuller & Thaler Asset Management, Inc.
SCHEDULE 13G · filed Aug 14, 2026 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Jul 31, 2026 · Common Stock
Principal Global Investors
SCHEDULE 13G · filed Aug 5, 2026 · Common stock, par value $0.001 per share · 4.6% in Aug 11, 2025
Invesco LTD
SCHEDULE 13G · filed May 8, 2026 · Common Stock · 4.9% in Aug 7, 2025
Rubric Capital Management LP
SCHEDULE 13G/A · filed Feb 13, 2026 · Common Stock, $0.001 par value per share · reported falling below 5%, from 9.34% in May 14, 2025
Renaissance Technologies LLC
SCHEDULE 13G/A · filed May 14, 2026 · Common stock · reported falling below 5%, from 5.06% in Nov 13, 2025
Eventide Asset Management, LLC
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock, par value $0.001 per share · reported falling below 5%, from 5.9% in Feb 13, 2026
Pacer Advisors, Inc.
SCHEDULE 13G/A · filed May 2, 2025 · Common Stock, Par Value $0.001 Per Share · reported falling below 5%, from 5.4% in May 2, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%
What COLL reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Ironshore Acquisition
A company bought · acquisition · Aug 2024 · owns, named in the 10-K filed Feb 26, 2026
8 subsidiaries in 3 countries, from the list filed with the 10-K filed Feb 26, 2026.
Insider tradesForm 4
14sales
0purchases
8sales on a scheduled plan
8people selling
$7.2Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window8 of 35 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Dreyer Scott | EVP & Chief Commercial Officer | 4 | $2.9M | 4 | 0 | $0 |
| Fallon John A. | director | 1 | $1.6M | 0 | 0 | $0 |
| Tupper Colleen | EVP & Chief Financial Officer | 2 | $1.2M | 2 | 0 | $0 |
| Dieter David | EVP & General Counsel | 2 | $700,000 | 2 | 0 | $0 |
| Bohlin Garen G | director | 1 | $300,000 | 0 | 0 | $0 |
| Balice-Gordon Rita J. | director | 1 | $200,000 | 0 | 0 | $0 |
| Lurker Nancy | director | 1 | $200,000 | 0 | 0 | $0 |
| Freund John Gordon | director | 2 | $100,000 | 0 | 0 | $0 |