Werewolf Therapeutics, Inc. - Common Stock (HOWL) Institutional Ownership

13F Institutional Holders and Ownership History from Q2 2021 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
HOWL on Nasdaq
Shares outstanding
47,916,629
Price per share
$0.57
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
4,024,230
Total reported value
$2,549,810
% of total 13F portfolios
0%
Share change
+168,649
Value change
+$5,536
Number of holders
32
Price from insider filings
$0.57
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Werewolf Therapeutics, Inc. - Common Stock (HOWL) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
RA CAPITAL MANAGEMENT, L.P. 14% -8% $13,162,175 -$129,035 6,681,307 -0.97% RA Capital Management, L.P. 04 Nov 2025
MPM BioVentures 2014, L.P. 6.9% -16% $2,136,074 -$386,130 3,368,670 -15% ANSBERT GADICKE 14 Jan 2026
Longwood Fund III, L.P. 3.5% $955,937 1,677,082 Longwood Fund III GP, LLC 31 Dec 2025
PFM Health Sciences, LP 0.9% -80% $437,210 -$2,729,747 401,110 -86% PFM Health Sciences, LP 30 Jun 2025

As of 31 Dec 2025, 32 institutional investors reported holding 4,024,230 shares of Werewolf Therapeutics, Inc. - Common Stock (HOWL). This represents 8.4% of the company’s total 47,916,629 outstanding shares.

Institutional Holders of Werewolf Therapeutics, Inc. - Common Stock (HOWL) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 4,024,230 $2,549,810 +$5,536 $0.63 32
2025 Q3 21,108,242 $41,572,612 -$2,126,394 $1.97 62
2025 Q2 22,335,758 $24,343,246 -$5,335,449 $1.09 65
2025 Q1 27,445,533 $26,679,025 -$940,155 $0.97 70
2024 Q4 28,177,146 $41,701,476 -$7,785,512 $1.48 71
2024 Q3 32,205,548 $68,274,106 -$1,018,677 $2.12 68
2024 Q2 32,469,409 $79,220,415 -$5,272,473 $2.44 70
2024 Q1 32,251,087 $208,968,732 +$29,830,206 $6.48 59
2023 Q4 27,669,999 $106,805,060 +$14,923,168 $3.86 41
2023 Q3 23,882,934 $51,107,776 -$364,729 $2.14 34
2023 Q2 24,045,139 $73,334,928 +$110,396 $3.05 36
2023 Q1 24,035,818 $62,491,910 +$8,454,617 $2.60 37
2022 Q4 20,890,957 $42,845,289 -$4,124,677 $2.05 37
2022 Q3 20,956,559 $94,490,128 +$8,517,407 $4.51 39
2022 Q2 19,071,418 $78,002,023 +$194,911 $4.09 39
2022 Q1 18,982,797 $83,522,100 -$5,015,169 $4.40 47
2021 Q4 19,103,784 $227,525,761 -$818,751 $11.91 50
2021 Q3 18,418,726 $316,117,290 -$12,884,754 $17.16 41
2021 Q2 19,169,179 $334,041,360 +$334,041,360 $17.44 44