Institutional shares held 26.9 Million
5.6K calls
900 puts
Total value of holdings $162M
$33K calls
$5K puts
Market Cap $250M
43,719,500 Shares Out.
Institutional ownership 61.47%
# of Institutions 113


Latest Institutional Activity in YMAB

Top Purchases

Q4 2024
Acorn Capital Advisors, LLC Shares Held: 2.86M ($16.4M)
Q4 2024
Logos Global Management LP Shares Held: 1M ($5.72M)
Q4 2024
Paradigm Biocapital Advisors LP Shares Held: 4.24M ($24.2M)
Q4 2024
Boothbay Fund Management, LLC Shares Held: 694K ($3.97M)
Q4 2024
State Street Corp Shares Held: 1.31M ($7.52M)

Top Sells

Q4 2024
Cormorant Asset Management, LP Shares Held: 425K ($2.43M)
Q4 2024
D. E. Shaw & Co., Inc. Shares Held: 615K ($3.52M)
Q4 2024
Point72 Asset Management, L.P. Shares Held: 550 ($3.15K)
Q4 2024
Citadel Advisors LLC Shares Held: 222K ($1.27M)
Q4 2024
Squarepoint Ops LLC Shares Held: 103K ($589K)

About YMAB

Y-mAbs Therapeutics, Inc., a commercial-stage biopharmaceutical company, focuses on the development and commercialization of novel antibody based therapeutic products for the treatment of cancer in the United States. It offers DANYELZA, a monoclonal antibody in combination with granulocyte-macrophage colony-stimulating factor for the treatment of pediatric patients with relapsed or refractory high-risk neuroblastoma. The company is also developing DANYELZA that is in Phase II clinical studies for the treatment of patients with first-line neuroblastoma, third-line neuroblastoma, and in relapsed osteosarcoma; GD2-GD3 vaccine that is in Phase II clinical trial for the treatment of Stage 4 high-risk neuroblastoma; and Omburtamab, a murine monoclonal antibody that is in clinical trials for the treatment of central nervous system/ leptomeningeal metastases from neuroblastoma, desmoplastic small round cell tumor, diffuse intrinsic pontine glioma, and other B7-H3 positive tumors. In addition, it is developing Nivatrotamab for the treatment of small cell lung cancer, as well as is in Phase I/II trial for the treatment of refractory GD2 positive adult and pediatric solid tumors; and Lu-omburtamab-DTPA that is in Phase I clinical development for the treatment of medulloblastoma and B7-H3 positive leptomeningeal metastases from solid tumors. The company has a license agreement with Memorial Sloan Kettering Cancer Center and Massachusetts Institute of Technology to develop and commercialize licensed products. Y-mAbs Therapeutics, Inc. was incorporated in 2015 and is headquartered in New York, New York.


Insider Transactions at YMAB

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
417K Shares
From 14 Insiders
Grant, award, or other acquisition 284K shares
Exercise of conversion of derivative security 133K shares
Sell / Disposition
320K Shares
From 7 Insiders
Open market or private sale 320K shares

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