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Schedule 13G/A

COLL Schedule 13G/A filing by Renaissance Technologies

Renaissance Technologies reported beneficial ownership of 1.5M shares, representing 4.82% of COLLEGIUM PHARMACEUTICAL, INC in this filing.

FiledAug 13, 2025
Ownership dateApr 1, 2025
Reported shares1.5M
Reported ownership4.82%
Ownership details

Voting and dispositive power reported in the filing

These figures describe the reporting filer’s disclosed voting and investment authority. They should be read together with the reported share count and percentage.

Sole voting power 1.5M
Shared voting power 0
Sole dispositive power 1.5M
Shared dispositive power 0
Price context

Price dates alongside the ownership filing

Price data provides market context around the disclosure. It does not identify the filer’s actual transaction price.

Close near filing date$37.86as of Aug 13, 2025
Latest tracked price$35.74as of Aug 5, 2026
Source

Original filing and accession

Use the SEC filing as the primary source when you need the complete disclosure, footnotes, exhibits, or reporting-person details.

Reporting filer
Renaissance Technologies
CIK
CIK0001037389
Accession
0001037389-25-000044
Form
Schedule 13G/A
Open SEC filing View COLL ownership history
Read the filing in context

Understand what a Schedule 13 filing does—and does not—tell you.

How to read a Schedule 13G → Does a 13G mean the shares were just bought? → Filing date vs. ownership date →