COLLEGIUM PHARMACEUTICAL, INC - Common stock, par value $0.001 per share (COLL)

Q: What does CUSIP 19459J104 represent in this 13F holders report?

CUSIP 19459J104 is the security identifier for COLL - COLLEGIUM PHARMACEUTICAL, INC - Common stock, par value $0.001 per share used to aggregate holder disclosures.

Q: How many institutions held COLL - COLLEGIUM PHARMACEUTICAL, INC - Common stock, par value $0.001 per share in Q1 2026?

266 institutional investors reported COLL - COLLEGIUM PHARMACEUTICAL, INC - Common stock, par value $0.001 per share for Q1 2026. Use the holders table for investor-level position and value details.

CUSIP: 19459J104

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class: Equity / Common stock, par value $0.001 per share
Total 13F shares: 37,980,559
Total 13F value: $1,256,507,219
Share change: +1,068,046
SEC-reported price per share: $33.07
Number of holders: 266
Value change: +$22,118,827
Number of buys: 142
Number of sells: 122
Shares outstanding: 32,647,200

Security key

19459J104

Report period

Q1 2026

Institutions

266

Top holders

COLL full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 COLLEGIUM PHARMACEUTICAL, INC SEC filings COLLEGIUM PHARMACEUTICAL, INC company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 19459J104

Newer quarter: Q2 2026

Recent filing periods:

Q2 2026

Ownership snapshot

Top reported holders of COLL - COLLEGIUM PHARMACEUTICAL, INC - Common stock, par value $0.001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

BlackRock, Inc.

Disclosed value leader

BlackRock, Inc.

Comparable rows

15/15

Latest evidence

18 Mar 2026

13F 13D/G 3/4/5 Lead comparable stake: 16% 13D/G row: BlackRock, Inc. Showing 1-6 of 15 holder rows.

Quick read

BlackRock, Inc. leads the comparable SEC ownership view at 16%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens BlackRock, Inc.'s linked filing trail.

Comparable ownership Top 5

BlackRock, Inc. 16%

Janus Henderson Group Ltd. 5.8%

Invesco Ltd. 5%

Rubric Capital Management LP 4.7%

RENAISSANCE TECHNOLOGIES LLC 4.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
BlackRock, Inc.	13F 13D/G Company 13F 13D/G	16% from 13D/G	$236,116,204 5,099,702 shares	—	31 Dec 2025
Janus Henderson Group Ltd.	13F 13D/G Company · JANUS HENDERSON GROUP PLC 13F 13D/G	5.8% from 13D/G	$67,026,050 1,448,578 shares	—	31 Dec 2025
Invesco Ltd.	13F 13D/G Company 13F 13D/G	5% from 13D/G	$54,404,399 1,175,041 shares	—	31 Dec 2025
Rubric Capital Management LP	3/4/5 13D/G 13F 10%+ Owner · Company 3/4/5 13D/G 13F	4.7% from 13D/G	$118,574,322 3,132,743 shares	-$946,250	13 Aug 2025
RENAISSANCE TECHNOLOGIES LLC	13F 13D/G Company 13F 13D/G	4.5% from 13D/G	$74,883,259 1,617,349 shares	—	31 Dec 2025
EVENTIDE ASSET MANAGEMENT, LLC	13F 13D/G Company 13F 13D/G	4.5% from 13D/G	$86,882,042 1,876,239 shares	—	31 Dec 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

266

37,980,559

Rows available

266

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q1 2026 Across Filers

Q1 2026 holders

266

Q1 2026 holders

266

Holder diff

Investor	Q1 2026 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q1 2026 value	Q1 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend