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Y-mAbs Therapeutics, Inc.

YMABDelisted Sep 16, 2025
Industry
Pharmaceutical Preparations
SEC CIK
0001722964

Y-mAbs Therapeutics, Inc. was delisted on Sep 16, 2025; its insiders filed their last Form 4 on Sep 19, 2025; 97 institutions reported holding it in 13F filings for Q2 2025, worth $125.9M in total; no superinvestor held it.

Q3 2024 vs. Q2 2024

How the institutions holding Y-mAbs Therapeutics, Inc. changed between Q2 2024 and Q3 2024.

All holders in Q3 2024All holders in Q2 2024

13F holders of YMAB: Q2 2024 compared with Q3 2024
MeasureQ2 2024Of which not filed for Q3 2024Q3 2024Change
Holders961105+10
Shares24.4M2.94M25.7M+4.33M (+20.2%)
Value$294.2M$35.5M$338.5M+$79.9M (+30.9%)

1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (20)

Institutions that held Y-mAbs Therapeutics, Inc. at the end of Q3 2024 but not at the end of Q2 2024.

Institutions new to YMAB in Q3 2024
InstitutionSharesValue% of portfolio
BlackRock, Inc.3,025,235$39.8M0.00%
Logos Global Management LP800,000$10.5M1.18%
Rafferty Asset Management, LLC35,077$461.3K0.00%
Principal Financial Group Inc20,294$266.9K0.00%
Empire Financial Management Company, LLC16,000$210.4K0.06%
Marshall Wace, LLP15,509$203.9K0.00%
HRT Financial LP14,260$187.0K0.00%
SG Americas Securities, LLC13,566$178.0K0.00%
Intech Investment Management LLC10,149$133.5K0.00%
Lazard Asset Management LLC4,218$55.0K0.00%
Zurcher Kantonalbank (Zurich Cantonalbank)3,324$43.7K0.00%
Bessemer Group Inc180$2.00K0.00%
Sterling Capital Management LLC38$5000.00%
Lindbrook Capital, LLC32$4210.00%
Smartleaf Asset Management LLC31$4010.00%
Rothschild Investment LLC25$3290.00%
Parallel Advisors, LLC18$2370.00%
US Bancorp17$2240.00%
Allspring Global Investments Holdings, LLC8$1050.00%
Capital Performance Advisors LLP3$390.00%

Sold out (10)

Institutions that held Y-mAbs Therapeutics, Inc. at the end of Q2 2024 and filed for Q3 2024 without it.

Institutions that sold out of YMAB in Q3 2024
InstitutionShares, Q2 2024Value, Q2 2024
Massachusetts Financial Services Co82,202$993.0K
Balyasny Asset Management LLC43,973$531.2K
Sherbrooke Park Advisers LLC23,647$285.7K
Cubist Systematic Strategies, LLC6,597$79.7K
Danske Bank A/S1,276$15.4K
HighMark Wealth Management LLC220$2.66K
Russell Investments Group, Ltd.188$2.27K
Signaturefd, LLC64$773
Point72 (DIFC) Ltd53$637
Advisor Group Holdings, Inc.30$362

Not filed for Q3 2024 yet (1)

Institutions that held Y-mAbs Therapeutics, Inc. at the end of Q2 2024 and haven't filed a 13F for Q3 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding YMAB in Q2 2024 that haven't filed for Q3 2024
InstitutionShares, Q2 2024Value, Q2 2024
BlackRock Inc.2,938,718$35.5M