13F Insight
DOSSIER · 13F Holders · Q4 2025Most-boughtAI cap-ex
FORR

FORRESTER RESH INC

108 institutions still hold FORRESTER RESH INC as of Q4 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 346563109·108 13F holders·last filed Dec 31, 2025
Market cap
—
▼ 8.6%
vs prior quarter
13F value held
$56M
73.0% inst. owned
of float
Holders
108
-39 QoQ
filers reporting
Activity
+84 / −76
+787 added · −843 reduced
this quarter
Concentration
10.32%
Portolan Capital Management, LLC #1
top holder share
AI Holders Summary · Q4 2025

108 institutions reported FORR in Q4 2025. Portolan Capital Management, LLC leads at 10.3% of the visible book. -39 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
Portolan Capital Management, LLC
CIK 0001350290
$6M706K0.31%Q4 202502
BlackRock, Inc.
CIK 0002012383
$5M907K0.00%Q1 202603
ArrowMark Colorado Holdings LLC
CIK 0001483859
$5M556K0.10%Q4 202504
Tieton Capital Management, LLC
CIK 0001381954
$4M539K1.50%Q4 202505
FIRST MANHATTAN CO. LLC.
CIK 0000728083
$4M750K0.01%Q1 202606
Pacific Ridge Capital Partners, LLC
CIK 0001591546
$4M711K0.87%Q1 202607
Nantahala Capital Management, LLC
CIK 0001472322
$4M694K0.14%Q1 202608
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$3M487K0.00%Q1 202609
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$2M437K0.00%Q1 202610
Clear Street Group Inc.
CIK 0001881567
$2M390K0.01%Q1 202611
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$2M389K0.00%Q1 202612
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC
CIK 0001164833
$2M384K0.01%Q1 202613
Invenomic Capital Management LP
CIK 0001769456
$2M259K0.10%Q4 202514
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$2M317K0.00%Q1 202615
SEI INVESTMENTS CO
CIK 0000350894
$2M284K0.00%Q1 202616
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$2M266K0.00%Q1 202617
STATE STREET CORP
CIK 0000093751
$1M259K0.00%Q1 202618
Quantinno Capital Management LP
CIK 0001759654
$1M224K0.00%Q1 202619
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$1M186K0.00%Q1 202620
D. E. Shaw & Co., Inc.
CIK 0001009207
$993,271122K0.00%Q4 2025
Page 1 of 6
88 more holders available. Log in →