FORRESTER RESEARCH, INC.

PublicCIK: 1023313
FORRNASDAQ
Location

CAMBRIDGE, MA

13F Filings

Institutional Holders

FORRESTER RESEARCH, INC.FORR— Latest position per institution from SEC 13F filings

15

Institutional holders

10.87M

Total shares held

97.96M

Estimated value

543.63K

Avg. position size

1

PORTOLAN CAPITAL MANAGEMENT, LLC

CIK 1350290

Shares

1.62M

Value

13.66M

Filed

Jun 30, 2026

2

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

933.57K

Value

15.95M

Filed

Jun 30, 2024

3

NANTAHALA CAPITAL MANAGEMENT, LLC

CIK 1472322

Shares

763.45K

Value

6.42M

Filed

Jun 30, 2026

4

TIETON CAPITAL MANAGEMENT, LLC

CIK 1381954

Shares

757.48K

Value

6.37K

Filed

Jun 30, 2026

5

FIRST MANHATTAN CO. LLC.

CIK 728083

Shares

750K

Value

6.31M

Filed

Jun 30, 2026

6

PACIFIC RIDGE CAPITAL PARTNERS, LLC

CIK 1591546

Shares

705.34K

Value

5.93M

Filed

Jun 30, 2026

7

VANGUARD GROUP INC

CIK 102909

Shares

659.06K

Value

5.35M

Filed

Dec 31, 2025

8

KENT LAKE CAPITAL LLC

CIK 1777141

Shares

532.15K

Value

11.47M

Filed

Mar 31, 2024

9

CAPTION MANAGEMENT, LLC

CIK 1706766

Shares

504.83K

Value

4.10M

Filed

Dec 31, 2025

10

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

500.39K

Value

4.21M

Filed

Jun 30, 2026

11

ACADIAN ASSET MANAGEMENT LLC

CIK 916542

Shares

429.61K

Value

3.61K

Filed

Jun 30, 2026

12

RENAISSANCE TECHNOLOGIES LLC

CIK 1037389

Shares

418.21K

Value

3.52M

Filed

Jun 30, 2026

13

HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC

CIK 1164833

Shares

366.69K

Value

3.08M

Filed

Jun 30, 2026

14

AQR CAPITAL MANAGEMENT LLC

CIK 1167557

Shares

357.67K

Value

3.01M

Filed

Jun 30, 2026

15

QUANTINNO CAPITAL MANAGEMENT LP

CIK 1759654

Shares

289.19K

Value

2.43M

Filed

Jun 30, 2026

16

BLACKROCK, INC.

CIK 2012383

Shares

270.11K

Value

2.27M

Filed

Jun 30, 2026

17

ANCORA ADVISORS LLC

CIK 1446114

Shares

269.89K

Value

2.27M

Filed

Jun 30, 2026

18

INVENOMIC CAPITAL MANAGEMENT LP

CIK 1769456

Shares

258.73K

Value

2.10M

Filed

Dec 31, 2025

19

BALLENTINE PARTNERS, LLC

CIK 1374889

Shares

250.56K

Value

3.93M

Filed

Dec 31, 2024

20

ARROWMARK COLORADO HOLDINGS LLC

CIK 1483859

Shares

231.81K

Value

1.95M

Filed

Jun 30, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.