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Y-MABS THERAPEUTICS INC (YMAB) Stock Ownership and Short Interest

USA - Nasdaq - NASDAQ:YMAB - US9842411095 - Common Stock

8.61 USD
+0.02 (+0.23%)
Last: 9/15/2025, 8:00:02 PM
8.61 USD
0 (0%)
After Hours: 9/15/2025, 8:00:02 PM
YMAB Ownership Chart.YMAB Ownership Chart: showing Insider, Institutional ownership and shares available to the public.YMAB Ownership.InsiderInstitutionalPublic



Shares Outstanding45.44M
Float39.89M
Float Short Interest PercentageN/A
Owners (insider)0.34%
Owners (institutional)82.83%
Owners (insider) change-991.55%
Owners (institutional) change-99.41%
YMAB Institutional Ownership HistoryYMAB Institutional Ownership HistoryYMAB Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 5M 10M 15M 20M 25M
YMAB Historical Insider Transactions ChartYMAB Historical Insider Buy and Sell Transactions ChartYMAB 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 -2M -4M -6M -8M -10M
Date Name Type Shares Price Amount
Sep 16, 2025 HEALY JAMES Other Disposition 2225881 8.60 $ 19,142,576.60
Sep 16, 2025 HEALY JAMES Other Disposition 25080 $ 0.00
Sep 16, 2025 Wedell-Wedellsborg Johan Other Disposition 4565058 8.60 $ 39,259,498.80
Sep 16, 2025 Wedell-Wedellsborg Johan Other Disposition 25080 $ 0.00
Sep 16, 2025 LaRocca John Other Disposition 21500 $ 0.00
Sep 16, 2025 Wilms Joris Other Disposition 12799 8.60 $ 110,071.40
Sep 16, 2025 Wilms Joris Other Disposition 39301 $ 0.00
Sep 16, 2025 Gad Thomas Other Disposition 373167 8.60 $ 3,209,236.20
Sep 16, 2025 Gad Thomas Other Disposition 60235 $ 0.00
Sep 16, 2025 PFREUNDSCHUH PETER P. Other Disposition 77800 $ 0.00
Sep 16, 2025 Rossi Michael J Other Disposition 7982 8.60 $ 68,645.20
Sep 16, 2025 Rossi Michael J Other Disposition 129101 $ 0.00
Sep 16, 2025 TYAGI ASHU Other Disposition 5825 8.60 $ 50,095.00
Sep 16, 2025 TYAGI ASHU Other Disposition 25080 $ 0.00
Sep 16, 2025 GILL DAVID N Other Disposition 30905 1.62 $ 50,095.00
Sep 16, 2025 WG Biotech ApS Other Disposition 4559233 8.60 $ 39,209,403.80
Sep 16, 2025 Hamill Laura Other Disposition 5825 8.60 $ 50,095.00
Sep 16, 2025 Hamill Laura Other Disposition 25080 $ 0.00
Jun 30, 2025 Hamill Laura Grant 25080 0.00 $ 0.00
Jun 30, 2025 TYAGI ASHU Grant 25080 0.00 $ 0.00
Jun 30, 2025 Wedell-Wedellsborg Johan Grant 25080 0.00 $ 0.00
Jun 30, 2025 HEALY JAMES Grant 25080 0.00 $ 0.00
Jun 30, 2025 GILL DAVID N Grant 25080 0.00 $ 0.00
Jun 3, 2025 Gad Thomas Option Excercise 103000 2.00 $ 206,000.00
Mar 7, 2025 Gad Thomas Open Market Sale 10810 5.23 $ 56,536.30
Mar 7, 2025 Rossi Michael J Open Market Sale 3917 5.20 $ 20,368.40
Jan 17, 2025 Gad Thomas Grant 32000 0.00 $ 0.00
Jan 17, 2025 Wilms Joris Grant 21500 0.00 $ 0.00
Jan 17, 2025 Rossi Michael J Grant 105300 0.00 $ 0.00
Jan 17, 2025 LaRocca John Grant 21500 0.00 $ 0.00
Jan 17, 2025 PFREUNDSCHUH PETER P. Grant 31800 0.00 $ 0.00