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Signature
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/s/ Michael J. Rossi
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Stock symbol
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YMAB
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Transactions as of
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Nov 6, 2023
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Transactions value $
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$0
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Form type
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3
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Date filed
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11/8/2023, 05:15 PM
No securities are beneficially owned.
Remarks:
Exhibit Index: Exhibit 24 - Power of Attorney for Michael J. Rossi dated November 7, 2023