Y-mAbs Therapeutics, Inc. - Common Stock, $0.0001 par value per share (YMAB)

CUSIP: 984241109

Q2 2025 13F Holders as of 30 Jun 2025

Type / Class
Equity / Common Stock, $0.0001 par value per share
Shares outstanding
45,101,565
Total 13F shares
27,903,915
Share change
-901,243
Total reported value
$125,848,990
Put/Call ratio
0%
Price per share
$4.51
Number of holders
96
Value change
-$3,989,579
Number of buys
41
Number of sells
54

Quarterly Holders Quick Answers

What is CUSIP 984241109?
CUSIP 984241109 identifies YMAB - Y-mAbs Therapeutics, Inc. - Common Stock, $0.0001 par value per share in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Top shareholders of YMAB - Y-mAbs Therapeutics, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
No top shareholder records were found across 13F, 13D/G, and Forms 3/4/5 for this issuer.

Institutional Holders of Y-mAbs Therapeutics, Inc. - Common Stock, $0.0001 par value per share (YMAB) as of Q2 2025

As of 30 Jun 2025, Y-mAbs Therapeutics, Inc. - Common Stock, $0.0001 par value per share (YMAB) was held by 96 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 27,903,915 shares. The largest 10 holders included Paradigm Biocapital Advisors LP, ACORN CAPITAL ADVISORS, LLC, BlackRock, Inc., Caligan Partners LP, Sofinnova Investments, Inc., VANGUARD GROUP INC, Polar Capital Holdings Plc, GEODE CAPITAL MANAGEMENT, LLC, STATE STREET CORP, and BOOTHBAY FUND MANAGEMENT, LLC. This page lists 96 institutional shareholders reporting positions in this security for the Q2 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period

Compare Q2 2025 vs Q1 2025 Across Filers

Q1 2025 holders
102
Q2 2025 holders
96
Holder diff
-6
Investor Q1 2025 Shares Q2 2025 Shares Share Diff Share Chg % Q1 2025 Value $ Q2 2025 Value $ Value Diff $ Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
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