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WEREWOLF THERAPEUTICS INC (HOWL) Stock Ownership and Short Interest

USA - Nasdaq - NASDAQ:HOWL - US95075A1079 - Common Stock

1.1 USD
+0.01 (+0.92%)
Last: 12/12/2025, 8:00:01 PM
1.09 USD
-0.01 (-0.91%)
After Hours: 12/12/2025, 8:00:01 PM
HOWL Ownership Chart.HOWL Ownership Chart: showing Insider, Institutional ownership and shares available to the public.HOWL Ownership.InsiderInstitutionalPublic



Shares Outstanding48.54M
Float45.82M
Float Short Interest Percentage1.69%
Owners (insider)1.39%
Owners (institutional)45.51%
Owners (insider) change0%
Owners (institutional) change-5.25%
HOWL Institutional Ownership HistoryHOWL Institutional Ownership HistoryHOWL Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 10M 20M 30M
HOWL Historical Insider Transactions ChartHOWL Historical Insider Buy and Sell Transactions ChartHOWL Historical Insider Transactions Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 0 -5M -10M
Date Name Type Shares Price Amount
Dec 10, 2025 EVNIN LUKE Open Market Sale 82971 1.07 $ 88,586.51
Dec 5, 2025 EVNIN LUKE Open Market Sale 95179 1.00 $ 94,787.25
Dec 2, 2025 MPM ASSET MANAGEMENT LLC Open Market Sale 199732 0.92 $ 183,275.38
Dec 2, 2025 EVNIN LUKE Open Market Sale 128185 0.92 $ 117,623.41
Dec 2, 2025 MPM BioVentures 2014, L.P. Open Market Sale 199732 0.92 $ 183,275.38
Dec 2, 2025 MPM BioVentures 2014 (B), L.P. Open Market Sale 199732 0.92 $ 183,275.38
Dec 2, 2025 MPM BioVentures 2014 LLC Open Market Sale 199732 0.92 $ 183,275.38
Dec 2, 2025 MPM BioVentures 2014 GP LLC Open Market Sale 199732 0.92 $ 183,275.38
Dec 2, 2025 MPM Asset Management Investors BV2014 LLC Open Market Sale 199732 0.92 $ 183,275.38
Dec 2, 2025 GADICKE ANSBERT Open Market Sale 199732 0.92 $ 183,275.38
Dec 2, 2025 MPM ONCOLOGY INNOVATIONS FUND LP Open Market Sale 199732 0.92 $ 183,275.38
Dec 2, 2025 UBS Oncology Impact Fund L.P. Open Market Sale 199732 0.92 $ 183,275.38
Dec 2, 2025 Oncology Impact Fund (Cayman) Management L.P. Open Market Sale 199732 0.92 $ 183,275.38
Dec 2, 2025 MPM Oncology Impact Management LP Open Market Sale 199732 0.92 $ 183,275.38
Dec 2, 2025 MPM Oncology Innovations Fund GP LLC Open Market Sale 199732 0.92 $ 183,275.38
Nov 26, 2025 EVNIN LUKE Open Market Sale 91088 0.96 $ 87,832.54
Nov 26, 2025 MPM BioVentures 2014, L.P. Open Market Sale 141927 0.96 $ 136,854.55
Nov 26, 2025 MPM BioVentures 2014 (B), L.P. Open Market Sale 141927 0.96 $ 136,854.55
Nov 26, 2025 MPM BioVentures 2014 LLC Open Market Sale 141927 0.96 $ 136,854.55
Nov 26, 2025 MPM BioVentures 2014 GP LLC Open Market Sale 141927 0.96 $ 136,854.55
Nov 26, 2025 MPM Asset Management Investors BV2014 LLC Open Market Sale 141927 0.96 $ 136,854.55
Nov 26, 2025 GADICKE ANSBERT Open Market Sale 141927 0.96 $ 136,854.55
Nov 26, 2025 MPM ONCOLOGY INNOVATIONS FUND LP Open Market Sale 141927 0.96 $ 136,854.55
Nov 26, 2025 UBS Oncology Impact Fund L.P. Open Market Sale 141927 0.96 $ 136,854.55
Nov 26, 2025 Oncology Impact Fund (Cayman) Management L.P. Open Market Sale 141927 0.96 $ 136,854.55
Nov 26, 2025 MPM Oncology Impact Management LP Open Market Sale 141927 0.96 $ 136,854.55
Nov 26, 2025 MPM Oncology Innovations Fund GP LLC Open Market Sale 141927 0.96 $ 136,854.55
Nov 26, 2025 MPM ASSET MANAGEMENT LLC Open Market Sale 141927 0.96 $ 136,854.55
Nov 21, 2025 EVNIN LUKE Open Market Sale 125576 0.92 $ 115,233.61
Nov 21, 2025 MPM BioVentures 2014, L.P. Open Market Sale 195666 0.92 $ 179,551.05
Nov 21, 2025 MPM BioVentures 2014 (B), L.P. Open Market Sale 195666 0.92 $ 179,551.05
Nov 21, 2025 MPM BioVentures 2014 LLC Open Market Sale 195666 0.92 $ 179,551.05
Nov 21, 2025 MPM BioVentures 2014 GP LLC Open Market Sale 195666 0.92 $ 179,551.05
Nov 21, 2025 MPM Asset Management Investors BV2014 LLC Open Market Sale 195666 0.92 $ 179,551.05
Nov 21, 2025 GADICKE ANSBERT Open Market Sale 195666 0.92 $ 179,551.05
Nov 21, 2025 MPM ONCOLOGY INNOVATIONS FUND LP Open Market Sale 195666 0.92 $ 179,551.05
Nov 21, 2025 UBS Oncology Impact Fund L.P. Open Market Sale 195666 0.92 $ 179,551.05
Nov 21, 2025 Oncology Impact Fund (Cayman) Management L.P. Open Market Sale 195666 0.92 $ 179,551.05
Nov 21, 2025 MPM Oncology Impact Management LP Open Market Sale 195666 0.92 $ 179,551.05
Nov 21, 2025 MPM Oncology Innovations Fund GP LLC Open Market Sale 195666 0.92 $ 179,551.05
Nov 21, 2025 MPM ASSET MANAGEMENT LLC Open Market Sale 195666 0.92 $ 179,551.05
Nov 18, 2025 MPM BioVentures 2014, L.P. Open Market Sale 160103 0.92 $ 147,912.95
Nov 18, 2025 MPM BioVentures 2014 (B), L.P. Open Market Sale 160103 0.92 $ 147,912.95
Nov 18, 2025 MPM BioVentures 2014 LLC Open Market Sale 160103 0.92 $ 147,912.95
Nov 18, 2025 MPM BioVentures 2014 GP LLC Open Market Sale 160103 0.92 $ 147,912.95
Nov 18, 2025 MPM Asset Management Investors BV2014 LLC Open Market Sale 160103 0.92 $ 147,912.95
Nov 18, 2025 EVNIN LUKE Open Market Sale 102753 0.92 $ 94,929.51
Nov 18, 2025 GADICKE ANSBERT Open Market Sale 160103 0.92 $ 147,912.95
Nov 18, 2025 MPM ONCOLOGY INNOVATIONS FUND LP Open Market Sale 160103 0.92 $ 147,912.95
Nov 18, 2025 UBS Oncology Impact Fund L.P. Open Market Sale 160103 0.92 $ 147,912.95
Nov 18, 2025 Oncology Impact Fund (Cayman) Management L.P. Open Market Sale 160103 0.92 $ 147,912.95
Nov 18, 2025 MPM Oncology Impact Management LP Open Market Sale 160103 0.92 $ 147,912.95
Nov 18, 2025 MPM Oncology Innovations Fund GP LLC Open Market Sale 160103 0.92 $ 147,912.95
Nov 18, 2025 MPM ASSET MANAGEMENT LLC Open Market Sale 160103 0.92 $ 147,912.95
Nov 13, 2025 EVNIN LUKE Open Market Sale 134553 0.96 $ 128,785.31
Nov 13, 2025 MPM BioVentures 2014, L.P. Open Market Sale 209652 0.96 $ 200,665.13
Nov 13, 2025 MPM BioVentures 2014 (B), L.P. Open Market Sale 209652 0.96 $ 200,665.13
Nov 13, 2025 MPM BioVentures 2014 LLC Open Market Sale 209652 0.96 $ 200,665.13
Nov 13, 2025 MPM BioVentures 2014 GP LLC Open Market Sale 209652 0.96 $ 200,665.13
Nov 13, 2025 MPM Asset Management Investors BV2014 LLC Open Market Sale 209652 0.96 $ 200,665.13
Nov 13, 2025 GADICKE ANSBERT Open Market Sale 209652 0.96 $ 200,665.13
Nov 13, 2025 MPM ONCOLOGY INNOVATIONS FUND LP Open Market Sale 209652 0.96 $ 200,665.13
Nov 13, 2025 UBS Oncology Impact Fund L.P. Open Market Sale 209652 0.96 $ 200,665.13
Nov 13, 2025 Oncology Impact Fund (Cayman) Management L.P. Open Market Sale 209652 0.96 $ 200,665.13
Nov 13, 2025 MPM Oncology Impact Management LP Open Market Sale 209652 0.96 $ 200,665.13
Nov 13, 2025 MPM Oncology Innovations Fund GP LLC Open Market Sale 209652 0.96 $ 200,665.13
Nov 13, 2025 MPM ASSET MANAGEMENT LLC Open Market Sale 209652 0.96 $ 200,665.13
Nov 7, 2025 UBS Oncology Impact Fund L.P. Open Market Sale 213529 1.13 $ 241,278.01
Nov 7, 2025 Oncology Impact Fund (Cayman) Management L.P. Open Market Sale 213529 1.13 $ 241,278.01
Nov 7, 2025 MPM Oncology Impact Management LP Open Market Sale 213529 1.13 $ 241,278.01
Nov 7, 2025 MPM Oncology Innovations Fund GP LLC Open Market Sale 213529 1.13 $ 241,278.01
Nov 7, 2025 MPM ASSET MANAGEMENT LLC Open Market Sale 213529 1.13 $ 241,278.01
Nov 7, 2025 EVNIN LUKE Open Market Sale 137041 1.13 $ 154,850.07
Nov 7, 2025 MPM BioVentures 2014, L.P. Open Market Sale 213529 1.13 $ 241,278.01
Nov 7, 2025 MPM BioVentures 2014 (B), L.P. Open Market Sale 213529 1.13 $ 241,278.01
Nov 7, 2025 MPM BioVentures 2014 LLC Open Market Sale 213529 1.13 $ 241,278.01
Nov 7, 2025 MPM BioVentures 2014 GP LLC Open Market Sale 213529 1.13 $ 241,278.01
Nov 7, 2025 MPM Asset Management Investors BV2014 LLC Open Market Sale 213529 1.13 $ 241,278.01
Nov 7, 2025 GADICKE ANSBERT Open Market Sale 213529 1.13 $ 241,278.01
Nov 7, 2025 MPM ONCOLOGY INNOVATIONS FUND LP Open Market Sale 213529 1.13 $ 241,278.01
Nov 4, 2025 MPM BioVentures 2014, L.P. Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 MPM BioVentures 2014 (B), L.P. Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 MPM BioVentures 2014 LLC Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 MPM BioVentures 2014 GP LLC Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 MPM Asset Management Investors BV2014 LLC Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 GADICKE ANSBERT Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 MPM ONCOLOGY INNOVATIONS FUND LP Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 UBS Oncology Impact Fund L.P. Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 Oncology Impact Fund (Cayman) Management L.P. Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 MPM Oncology Impact Management LP Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 MPM Oncology Innovations Fund GP LLC Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 MPM ASSET MANAGEMENT LLC Open Market Sale 242890 1.22 $ 295,781.28
Nov 4, 2025 EVNIN LUKE Open Market Sale 155885 1.22 $ 189,830.23
Oct 30, 2025 MPM BioVentures 2014 (B), L.P. Open Market Sale 295043 1.33 $ 391,636.07
Oct 30, 2025 MPM BioVentures 2014 LLC Open Market Sale 295043 1.33 $ 391,636.07
Oct 30, 2025 MPM BioVentures 2014 GP LLC Open Market Sale 295043 1.33 $ 391,636.07
Oct 30, 2025 MPM Asset Management Investors BV2014 LLC Open Market Sale 295043 1.33 $ 391,636.07
Oct 30, 2025 GADICKE ANSBERT Open Market Sale 295043 1.33 $ 391,636.07
Oct 30, 2025 MPM ONCOLOGY INNOVATIONS FUND LP Open Market Sale 295043 1.33 $ 391,636.07
Oct 30, 2025 UBS Oncology Impact Fund L.P. Open Market Sale 295043 1.33 $ 391,636.07
Oct 30, 2025 Oncology Impact Fund (Cayman) Management L.P. Open Market Sale 295043 1.33 $ 391,636.07
Oct 30, 2025 MPM Oncology Impact Management LP Open Market Sale 295043 1.33 $ 391,636.07
Oct 30, 2025 MPM Oncology Innovations Fund GP LLC Open Market Sale 295043 1.33 $ 391,636.07
Oct 30, 2025 MPM ASSET MANAGEMENT LLC Open Market Sale 295043 1.33 $ 391,636.07
Oct 30, 2025 EVNIN LUKE Open Market Sale 189356 1.33 $ 251,348.62
Oct 30, 2025 MPM BioVentures 2014, L.P. Open Market Sale 295043 1.33 $ 391,636.07
Oct 27, 2025 EVNIN LUKE Open Market Sale 177145 1.62 $ 286,497.06
Oct 27, 2025 MPM BioVentures 2014, L.P. Open Market Sale 276017 1.62 $ 446,403.00
Oct 27, 2025 MPM BioVentures 2014 (B), L.P. Open Market Sale 276017 1.62 $ 446,403.00
Oct 27, 2025 MPM BioVentures 2014 LLC Open Market Sale 276017 1.62 $ 446,403.00
Oct 27, 2025 MPM BioVentures 2014 GP LLC Open Market Sale 276017 1.62 $ 446,403.00
Oct 27, 2025 MPM Asset Management Investors BV2014 LLC Open Market Sale 276017 1.62 $ 446,403.00
Oct 27, 2025 GADICKE ANSBERT Open Market Sale 276017 1.62 $ 446,403.00
Oct 27, 2025 MPM ONCOLOGY INNOVATIONS FUND LP Open Market Sale 276017 1.62 $ 446,403.00
Oct 27, 2025 UBS Oncology Impact Fund L.P. Open Market Sale 276017 1.62 $ 446,403.00
Oct 27, 2025 Oncology Impact Fund (Cayman) Management L.P. Open Market Sale 276017 1.62 $ 446,403.00
Oct 27, 2025 MPM Oncology Impact Management LP Open Market Sale 276017 1.62 $ 446,403.00
Oct 27, 2025 MPM Oncology Innovations Fund GP LLC Open Market Sale 276017 1.62 $ 446,403.00
Oct 27, 2025 MPM ASSET MANAGEMENT LLC Open Market Sale 276017 1.62 $ 446,403.00
May 12, 2025 RA CAPITAL MANAGEMENT, LLC Open Market Purchase 536426 0.91 $ 487,187.92
May 12, 2025 RA Capital Healthcare Fund LP Open Market Purchase 536426 0.91 $ 487,187.92
May 12, 2025 RA Capital Nexus Fund II, L.P. Open Market Purchase 536426 0.91 $ 487,187.92
May 12, 2025 Kolchinsky Peter Open Market Purchase 536426 0.91 $ 487,187.92
May 12, 2025 Shah Rajeev M. Open Market Purchase 536426 0.91 $ 487,187.92