13F Insight
DOSSIER · 13F Holders · Q1 2026Cheap mega-capRe-rated
COLL

Collegium Pharmaceutical Inc

280 institutions still hold Collegium Pharmaceutical Inc as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 19459j104·280 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 8.5%
vs prior quarter
13F value held
$891M
76.0% inst. owned
of float
Holders
280
-65 QoQ
filers reporting
Activity
+49 / −106
+910 added · −757 reduced
this quarter
Concentration
19.06%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

280 institutions reported COLL in Q1 2026. BlackRock, Inc. leads at 19.1% of the visible book. -65 net institutions QoQ — distribution reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$170M5.1M0.00%Q1 202602
Rubric Capital Management LP
CIK 0001687509
$69M1.5M0.83%Q4 202503
JANUS HENDERSON GROUP PLC
CIK 0001274173
$60M1.8M0.03%Q1 202604
Invesco Ltd.
CIK 0000914208
$53M1.6M0.01%Q1 202605
FULLER & THALER ASSET MANAGEMENT, INC.
CIK 0001082327
$50M1.5M0.17%Q1 202606
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$49M1.5M0.08%Q1 202607
STATE STREET CORP
CIK 0000093751
$47M1.4M0.00%Q1 202608
EVENTIDE ASSET MANAGEMENT, LLC
CIK 0001442891
$47M1.4M0.78%Q1 202609
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 0000912938
$45M1.4M0.02%Q1 202610
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$44M1.3M0.00%Q1 202611
PRINCIPAL FINANCIAL GROUP INC
CIK 0001126328
$43M1.3M0.02%Q1 202612
D. E. Shaw & Co., Inc.
CIK 0001009207
$30M654K0.02%Q4 202513
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$28M833K0.01%Q1 202614
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$27M819K0.00%Q1 202615
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$23M704K0.01%Q1 202616
MARSHALL WACE, LLP
CIK 0001318757
$23M492K0.02%Q4 202517
Vanguard Portfolio Management
CIK 0002100121· Index
$23M680K0.00%Q1 202618
VICTORY CAPITAL MANAGEMENT INC
CIK 0001040188
$21M625K0.01%Q1 202619
Qube Research & Technologies Ltd
CIK 0001729829
$21M622K0.02%Q1 202620
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$20M590K0.02%Q1 2026
Page 1 of 14
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