NASDAQ: YMAB
Y Mabs Therapeutics Inc Stock Ownership - Who owns Y Mabs Therapeutics?

Insider buying vs selling

Have Y Mabs Therapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Thomas GadCHIEF BUSINESS OFFICER2025-06-03103,000$2.00
$206.00kBuy
Michael J. RossiPRESIDENT CEO2025-03-073,917$5.20
$20.37kSell
Thomas GadCHIEF BUSINESS OFFICER2025-03-0710,810$5.23
$56.54kSell
Thomas GadCHIEF BUSINESS OFFICER2024-09-1922,831$4.38
$100.00kBuy
Thomas GadCHIEF BUSINESS OFFICER2024-09-1630,000$12.97
$389.10kSell
Thomas GadCHIEF BUSINESS OFFICER2024-09-1365,000$13.47
$875.55kSell
Torben LundhansenSVP CHIEF TECHNICAL OFFICER2024-08-2850,000$4.38
$219.00kBuy
Torben LundhansenSVP CHIEF TECHNICAL OFFICER2024-08-2850,000$15.37
$768.50kSell
Joris WilmsSVP CHIEF OPERATING OFFICER2024-08-265,000$14.69
$73.45kSell

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Net Insider Buy/Sell (L12M) Ownership

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YMAB Shareholders

What type of owners hold Y Mabs Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Johan Wedellwedellsborg11.55%5,229,205$24.63MInsider
Biotech Aps Wg10.07%4,559,233$21.47MInsider
Paradigm Biocapital Advisors LP9.36%4,236,346$19.95MInstitution
Acorn Capital Advisors LLC7.14%3,235,387$15.24MInstitution
Blackrock Inc6.41%2,902,025$13.67MInstitution
Thomas Gad5.51%2,494,114$11.75MInsider
Caligan Partners LP5.17%2,342,609$11.03MInstitution
James Healy4.92%2,225,881$10.48MInsider
Sofinnova Investments Inc4.85%2,194,278$10.34MInstitution
Vanguard Group Inc4.30%1,946,509$9.17MInstitution

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YMAB vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
YMAB62.34%37.66%Net BuyingNet Buying
DRTS1.67%0.00%
INBX72.35%27.65%Net Buying
OABI51.80%26.41%Net BuyingNet Buying
DSGN46.26%53.74%Net Selling

Y Mabs Therapeutics Stock Ownership FAQ

Who owns Y Mabs Therapeutics?

Y Mabs Therapeutics (NASDAQ: YMAB) is owned by 63.61% institutional shareholders, 38.42% Y Mabs Therapeutics insiders, and 0.00% retail investors. Johan Wedellwedellsborg is the largest individual Y Mabs Therapeutics shareholder, owning 5.23M shares representing 11.55% of the company. Johan Wedellwedellsborg's Y Mabs Therapeutics shares are currently valued at $24.63M.

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