CAMBRIDGE, MA
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
PORTOLAN CAPITAL MANAGEMENT, LLC
CIK 1350290
Shares
1.62M
Value
13.66M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
933.57K
Value
15.95M
Filed
Jun 30, 2024
NANTAHALA CAPITAL MANAGEMENT, LLC
CIK 1472322
Shares
763.45K
Value
6.42M
Filed
Jun 30, 2026
TIETON CAPITAL MANAGEMENT, LLC
CIK 1381954
Shares
757.48K
Value
6.37K
Filed
Jun 30, 2026
FIRST MANHATTAN CO. LLC.
CIK 728083
Shares
750K
Value
6.31M
Filed
Jun 30, 2026
PACIFIC RIDGE CAPITAL PARTNERS, LLC
CIK 1591546
Shares
705.34K
Value
5.93M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
659.06K
Value
5.35M
Filed
Dec 31, 2025
KENT LAKE CAPITAL LLC
CIK 1777141
Shares
532.15K
Value
11.47M
Filed
Mar 31, 2024
CAPTION MANAGEMENT, LLC
CIK 1706766
Shares
504.83K
Value
4.10M
Filed
Dec 31, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
500.39K
Value
4.21M
Filed
Jun 30, 2026
ACADIAN ASSET MANAGEMENT LLC
CIK 916542
Shares
429.61K
Value
3.61K
Filed
Jun 30, 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
418.21K
Value
3.52M
Filed
Jun 30, 2026
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC
CIK 1164833
Shares
366.69K
Value
3.08M
Filed
Jun 30, 2026
AQR CAPITAL MANAGEMENT LLC
CIK 1167557
Shares
357.67K
Value
3.01M
Filed
Jun 30, 2026
QUANTINNO CAPITAL MANAGEMENT LP
CIK 1759654
Shares
289.19K
Value
2.43M
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
270.11K
Value
2.27M
Filed
Jun 30, 2026
ANCORA ADVISORS LLC
CIK 1446114
Shares
269.89K
Value
2.27M
Filed
Jun 30, 2026
INVENOMIC CAPITAL MANAGEMENT LP
CIK 1769456
Shares
258.73K
Value
2.10M
Filed
Dec 31, 2025
BALLENTINE PARTNERS, LLC
CIK 1374889
Shares
250.56K
Value
3.93M
Filed
Dec 31, 2024
ARROWMARK COLORADO HOLDINGS LLC
CIK 1483859
Shares
231.81K
Value
1.95M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | PORTOLAN CAPITAL MANAGEMENT, LLC | 1350290 | 1.62M | 13.66M | Jun 30, 2026 |
| 2 | BLACKROCK FINANCE, INC. | 1364742 | 933.57K | 15.95M | Jun 30, 2024 |
| 3 | NANTAHALA CAPITAL MANAGEMENT, LLC | 1472322 | 763.45K | 6.42M | Jun 30, 2026 |
| 4 | TIETON CAPITAL MANAGEMENT, LLC | 1381954 | 757.48K | 6.37K | Jun 30, 2026 |
| 5 | FIRST MANHATTAN CO. LLC. | 728083 | 750K | 6.31M | Jun 30, 2026 |
| 6 | PACIFIC RIDGE CAPITAL PARTNERS, LLC | 1591546 | 705.34K | 5.93M | Jun 30, 2026 |
| 7 | VANGUARD GROUP INC | 102909 | 659.06K | 5.35M | Dec 31, 2025 |
| 8 | KENT LAKE CAPITAL LLC | 1777141 | 532.15K | 11.47M | Mar 31, 2024 |
| 9 | CAPTION MANAGEMENT, LLC | 1706766 | 504.83K | 4.10M | Dec 31, 2025 |
| 10 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 500.39K | 4.21M | Jun 30, 2026 |
| 11 | ACADIAN ASSET MANAGEMENT LLC | 916542 | 429.61K | 3.61K | Jun 30, 2026 |
| 12 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 418.21K | 3.52M | Jun 30, 2026 |
| 13 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 1164833 | 366.69K | 3.08M | Jun 30, 2026 |
| 14 | AQR CAPITAL MANAGEMENT LLC | 1167557 | 357.67K | 3.01M | Jun 30, 2026 |
| 15 | QUANTINNO CAPITAL MANAGEMENT LP | 1759654 | 289.19K | 2.43M | Jun 30, 2026 |
| 16 | BLACKROCK, INC. | 2012383 | 270.11K | 2.27M | Jun 30, 2026 |
| 17 | ANCORA ADVISORS LLC | 1446114 | 269.89K | 2.27M | Jun 30, 2026 |
| 18 | INVENOMIC CAPITAL MANAGEMENT LP | 1769456 | 258.73K | 2.10M | Dec 31, 2025 |
| 19 | BALLENTINE PARTNERS, LLC | 1374889 | 250.56K | 3.93M | Dec 31, 2024 |
| 20 | ARROWMARK COLORADO HOLDINGS LLC | 1483859 | 231.81K | 1.95M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.