Y-mAbs Therapeutics, Inc. - 984241109
Detailed investor-level table based on 13F positions.
Early Q3 2025 data: only 2 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Paradigm Biocapital Advisors LP | History | No change | 4,236,346 | 19,105 | 0.82% | 0.86% | 1 | 0 | 0.0% | Q2 2025 | Aug 14, 2025 |
| ACORN CAPITAL ADVISORS, LLC | History | New | 3,418,995 | 15,419 | 10.08% | — | 2 | +3,418,995 | New | Q2 2025 | Aug 14, 2025 |
| BlackRock, Inc. | History | Reduced | 2,748,077 | 12,393 | 0.0% | 0.0% | 3 | -153,948 | -5.3% | Q2 2025 | Aug 12, 2025 |
| Caligan Partners LP | History | New | 2,342,609 | 10,565 | 2.03% | — | 4 | +2,342,609 | New | Q2 2025 | Aug 14, 2025 |
| Sofinnova Investments, Inc. | History | New | 2,194,278 | 9,896 | 0.61% | — | 5 | +2,194,278 | New | Q2 2025 | Aug 14, 2025 |
| VANGUARD GROUP INC | History | Reduced | 1,943,285 | 8,764 | 0.0% | 0.0% | 6 | -3,224 | -0.17% | Q2 2025 | Aug 11, 2025 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Reduced | 848,461 | 3,827 | 0.0% | 0.0% | 7 | -1,039 | -0.12% | Q2 2025 | Aug 08, 2025 |
| STATE STREET CORP | History | Reduced | 780,145 | 3,518 | 0.0% | 0.0% | 8 | -8,876 | -1.12% | Q2 2025 | Aug 14, 2025 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | No change | 693,693 | 3,128 | 0.06% | 0.08% | 9 | 0 | 0.0% | Q2 2025 | Aug 14, 2025 |
| D. E. Shaw & Co., Inc. | History | Reduced | 516,857 | 2,331 | 0.0% | 0.0% | 10 | -32,809 | -5.97% | Q2 2025 | Aug 14, 2025 |
| DIMENSIONAL FUND ADVISORS LP | History | Reduced | 412,246 | 1,859 | 0.0% | 0.0% | 11 | -6,308 | -1.51% | Q2 2025 | Aug 12, 2025 |
| Nantahala Capital Management, LLC | History | New | 351,878 | 1,586 | 0.06% | — | 12 | +351,878 | New | Q2 2025 | Aug 14, 2025 |
| Soleus Capital Management, L.P. | History | New | 349,982 | 1,578 | 0.1% | — | 13 | +349,982 | New | Q2 2025 | Aug 15, 2025 |
| NORTHERN TRUST CORP | History | Reduced | 308,130 | 1,389 | 0.0% | 0.0% | 14 | -19,771 | -6.03% | Q2 2025 | Aug 13, 2025 |
| MORGAN STANLEY | History | Reduced | 292,567 | 1,319 | 0.0% | 0.0% | 15 | -207,594 | -41.51% | Q2 2025 | Aug 14, 2025 |
| Stonepine Capital Management, LLC | History | New | 285,300 | 1,286 | 1.26% | — | 16 | +285,300 | New | Q2 2025 | Aug 13, 2025 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | Added to | 278,179 | 1,254 | 0.0% | 0.0% | 17 | +569 | 0.2% | Q2 2025 | Aug 12, 2025 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 274,164 | 1,236 | 0.0% | 0.0% | 18 | -8,154 | -2.89% | Q2 2025 | Aug 14, 2025 |
| AQR CAPITAL MANAGEMENT LLC | History | Added to | 252,142 | 1,137 | 0.0% | 0.0% | 19 | +87,354 | 53.01% | Q2 2025 | Aug 14, 2025 |
| CITADEL ADVISORS LLC | History | Added to | 231,642 | 1,044 | 0.0% | 0.0% | 20 | +37,187 | 19.12% | Q2 2025 | Aug 14, 2025 |
| UBS Group AG | History | Added to | 229,072 | 1,033 | 0.0% | 0.0% | 21 | +137,496 | 150.14% | Q2 2025 | Aug 14, 2025 |
| GOLDMAN SACHS GROUP INC | History | Added to | 212,751 | 959 | 0.0% | 0.0% | 22 | +10,975 | 5.44% | Q2 2025 | Aug 14, 2025 |
| GSA CAPITAL PARTNERS LLP | History | New | 186,062 | 839 | 0.06% | — | 23 | +186,062 | New | Q2 2025 | Jul 22, 2025 |
| RENAISSANCE TECHNOLOGIES LLC | History | Reduced | 164,100 | 740 | 0.0% | 0.0% | 24 | -92,606 | -36.07% | Q2 2025 | Aug 13, 2025 |
| JPMORGAN CHASE & CO | History | Reduced | 164,055 | 739 | 0.0% | 0.0% | 25 | -83,387 | -33.7% | Q2 2025 | Aug 12, 2025 |
| INFINITUM ASSET MANAGEMENT, LLC | History | New | 155,529 | 701 | 0.16% | — | 26 | +155,529 | New | Q2 2025 | Aug 14, 2025 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | History | Reduced | 142,641 | 643 | 0.0% | 0.0% | 27 | -94,870 | -39.94% | Q2 2025 | Aug 14, 2025 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 139,955 | 631 | 0.0% | 0.0% | 28 | -326,665 | -70.01% | Q2 2025 | Aug 14, 2025 |
| TWO SIGMA INVESTMENTS, LP | History | Reduced | 125,298 | 565 | 0.0% | 0.0% | 29 | -29,487 | -19.05% | Q2 2025 | Aug 14, 2025 |
| FEDERATED HERMES, INC. | History | Reduced | 119,425 | 538 | 0.0% | 0.0% | 30 | -34,028 | -22.17% | Q2 2025 | Aug 13, 2025 |
| TWO SIGMA ADVISERS, LP | History | Reduced | 115,700 | 521 | 0.0% | 0.0% | 31 | -27,600 | -19.26% | Q2 2025 | Aug 14, 2025 |
| RICE HALL JAMES & ASSOCIATES, LLC | History | New | 109,604 | 494 | 0.03% | — | 32 | +109,604 | New | Q2 2025 | Aug 11, 2025 |
| Bank of New York Mellon Corp | History | Added to | 99,352 | 448 | 0.0% | 0.0% | 33 | +6,878 | 7.44% | Q2 2025 | Aug 05, 2025 |
| BNP PARIBAS FINANCIAL MARKETS | History | Reduced | 94,383 | 425 | 0.0% | 0.0% | 34 | -1,119 | -1.17% | Q2 2025 | Aug 14, 2025 |
| Nuveen, LLC | History | Reduced | 93,418 | 421 | 0.0% | 0.0% | 35 | -19,065 | -16.95% | Q2 2025 | Aug 12, 2025 |
| XTX Topco Ltd | History | Reduced | 86,440 | 389 | 0.02% | 0.02% | 36 | -5,014 | -5.48% | Q2 2025 | Aug 12, 2025 |
| BARCLAYS PLC | History | Added to | 72,842 | 328 | 0.0% | 0.0% | 37 | +26,084 | 55.79% | Q2 2025 | Feb 27, 2026 |
| RHUMBLINE ADVISERS | History | Added to | 68,399 | 308 | 0.0% | 0.0% | 38 | +14,490 | 26.88% | Q2 2025 | Aug 12, 2025 |
| STRS OHIO | History | Added to | 62,400 | 281 | 0.0% | 0.0% | 39 | +19,000 | 43.78% | Q2 2025 | Aug 04, 2025 |
| Jump Financial, LLC | History | Added to | 61,500 | 277 | 0.0% | 0.0% | 40 | +23,421 | 61.51% | Q2 2025 | Aug 13, 2025 |
| JANE STREET GROUP, LLC | History | New | 60,873 | 274 | 0.0% | — | 41 | +60,873 | New | Q2 2025 | Aug 14, 2025 |
| ALLIANCEBERNSTEIN L.P. | History | Added to | 59,380 | 267 | 0.0% | 0.0% | 42 | +4,600 | 8.4% | Q2 2025 | Aug 14, 2025 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | Added to | 55,700 | 251 | 0.01% | 0.0% | 43 | +30,800 | 123.69% | Q2 2025 | Aug 14, 2025 |
| STATE OF WISCONSIN INVESTMENT BOARD | History | New | 51,336 | 231 | 0.0% | — | 44 | +51,336 | New | Q2 2025 | Aug 14, 2025 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 51,090 | 230 | 0.0% | 0.0% | 45 | -9,570 | -15.78% | Q2 2025 | Aug 14, 2025 |
| SAPIENT CAPITAL LLC | History | No change | 43,700 | 197 | 0.0% | 0.0% | 46 | 0 | 0.0% | Q2 2025 | Jul 09, 2025 |
| Invesco Ltd. | History | Added to | 42,833 | 193 | 0.0% | 0.0% | 47 | +10,286 | 31.6% | Q2 2025 | Aug 13, 2025 |
| MARSHALL WACE, LLP | History | New | 40,181 | 181 | 0.0% | — | 48 | +40,181 | New | Q2 2025 | Aug 13, 2025 |
| AlphaQuest LLC | History | New | 38,925 | 175 | 0.02% | — | 49 | +38,925 | New | Q2 2025 | Jul 31, 2025 |
| FMR LLC | History | Added to | 30,868 | 139 | 0.0% | 0.0% | 50 | +1,607 | 5.49% | Q2 2025 | Aug 14, 2025 |
| DEUTSCHE BANK AG\ | History | No change | 28,803 | 129 | 0.0% | 0.0% | 51 | 0 | 0.0% | Q2 2025 | Aug 12, 2025 |
| ALPS ADVISORS INC | History | Reduced | 24,429 | 110 | 0.0% | 0.0% | 52 | -8,880 | -26.66% | Q2 2025 | Aug 11, 2025 |
| MetLife Investment Management, LLC | History | Added to | 21,928 | 98 | 0.0% | 0.0% | 53 | +4,852 | 28.41% | Q2 2025 | Aug 13, 2025 |
| INTECH INVESTMENT MANAGEMENT LLC | History | Reduced | 21,674 | 97 | 0.0% | 0.0% | 54 | -5,021 | -18.81% | Q2 2025 | Aug 08, 2025 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | History | Reduced | 21,185 | 95 | 0.0% | 0.0% | 55 | -936 | -4.23% | Q2 2025 | Aug 14, 2025 |
| WELLS FARGO & COMPANY/MN | History | Added to | 19,037 | 85 | 0.0% | 0.0% | 56 | +1,185 | 6.64% | Q2 2025 | Aug 14, 2025 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | New | 17,211 | 78 | 0.0% | — | 57 | +17,211 | New | Q2 2025 | Aug 14, 2025 |
| CITIGROUP INC | History | Reduced | 15,250 | 68 | 0.0% | 0.0% | 58 | -13,268 | -46.53% | Q2 2025 | Aug 11, 2025 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | History | No change | 14,596 | 65 | 0.0% | 0.0% | 59 | 0 | 0.0% | Q2 2025 | Aug 13, 2025 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | History | Reduced | 13,143 | 59 | 0.0% | 0.0% | 60 | -796 | -5.71% | Q2 2025 | Aug 14, 2025 |
| Squarepoint Ops LLC | History | Reduced | 12,233 | 55 | 0.0% | 0.0% | 61 | -116,294 | -90.48% | Q2 2025 | Aug 27, 2025 |
| HSBC HOLDINGS PLC | History | New | 11,948 | 54 | 0.0% | — | 62 | +11,948 | New | Q2 2025 | Aug 13, 2025 |
| Tower Research Capital LLC (TRC) | History | Added to | 11,494 | 51 | 0.0% | 0.0% | 63 | +6,474 | 128.96% | Q2 2025 | Aug 15, 2025 |
| VOYA INVESTMENT MANAGEMENT LLC | History | Added to | 10,742 | 48 | 0.0% | 0.0% | 64 | +531 | 5.2% | Q2 2025 | Aug 14, 2025 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | History | New | 10,284 | 46 | 0.0% | — | 65 | +10,284 | New | Q2 2025 | Aug 07, 2025 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | No change | 10,110 | 45 | 0.0% | 0.0% | 66 | 0 | 0.0% | Q2 2025 | Oct 08, 2025 |
| China Universal Asset Management Co., Ltd. | History | New | 9,097 | 41 | 0.0% | — | 67 | +9,097 | New | Q2 2025 | Aug 28, 2025 |
| RAYMOND JAMES FINANCIAL INC | History | New | 7,701 | 34 | 0.0% | — | 68 | +7,701 | New | Q2 2025 | Aug 14, 2025 |
| Police & Firemen's Retirement System of New Jersey | History | No change | 7,327 | 33 | 0.0% | 0.0% | 69 | 0 | 0.0% | Q2 2025 | Aug 08, 2025 |
| CWM, LLC | History | New | 7,121 | 32 | 0.0% | — | 70 | +7,121 | New | Q2 2025 | Jul 25, 2025 |
| Brooklyn Investment Group | History | New | 4,951 | 22 | 0.0% | — | 71 | +4,951 | New | Q2 2025 | Aug 14, 2025 |
| Legal & General Group Plc | History | Reduced | 4,131 | 18 | 0.0% | 0.0% | 72 | -4,444 | -51.83% | Q2 2025 | Aug 12, 2025 |
| Ameritas Investment Partners, Inc. | History | New | 3,701 | 16 | 0.0% | — | 73 | +3,701 | New | Q2 2025 | Aug 12, 2025 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | No change | 2,665 | 12 | 0.0% | 0.0% | 74 | 0 | 0.0% | Q2 2025 | Aug 14, 2025 |
| Mirae Asset Global Investments Co., Ltd. | History | Added to | 1,750 | 7 | 0.0% | 0.0% | 76 | +245 | 16.28% | Q2 2025 | Jul 21, 2025 |
| ROYAL BANK OF CANADA | History | Reduced | 1,612 | 7 | 0.0% | 0.0% | 75 | -98 | -5.73% | Q2 2025 | Nov 21, 2025 |
| EverSource Wealth Advisors, LLC | History | New | 1,265 | 5 | 0.0% | — | 78 | +1,265 | New | Q2 2025 | Aug 13, 2025 |
| AMALGAMATED BANK | History | New | 1,217 | 5 | 0.0% | — | 77 | +1,217 | New | Q2 2025 | Aug 04, 2025 |
| GF FUND MANAGEMENT CO. LTD. | History | No change | 1,111 | 5 | 0.0% | 0.0% | 79 | 0 | 0.0% | Q2 2025 | Jul 22, 2025 |
| IFP Advisors, Inc | History | New | 334 | 1 | 0.0% | — | 81 | +334 | New | Q2 2025 | Jul 24, 2025 |
| Daiwa Securities Group Inc. | History | New | 162 | 1 | 0.0% | — | 80 | +162 | New | Q2 2025 | Aug 14, 2025 |
| Polar Capital Holdings Plc | History | Closed out | 0 | 0 | — | 0.05% | — | -1,831,000 | -100.0% | Q1 2025 | May 15, 2025 |
| Pictet Asset Management Holding SA | History | Closed out | 0 | 0 | — | 0.0% | — | -441,934 | -100.0% | Q1 2025 | May 05, 2025 |
| WELLINGTON MANAGEMENT GROUP LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -204,052 | -100.0% | Q1 2025 | May 13, 2025 |
| WESBANCO BANK INC | History | Closed out | 0 | 0 | — | 0.01% | — | -55,000 | -100.0% | Q1 2025 | Apr 14, 2025 |
| EXCHANGE TRADED CONCEPTS, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -26,762 | -100.0% | Q1 2025 | Apr 17, 2025 |
| Man Group plc | History | Closed out | 0 | 0 | — | 0.0% | — | -26,004 | -100.0% | Q1 2025 | May 15, 2025 |
| PRINCIPAL FINANCIAL GROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -22,434 | -100.0% | Q1 2025 | Apr 28, 2025 |
| Connor, Clark & Lunn Investment Management Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -11,084 | -100.0% | Q1 2025 | May 12, 2025 |
| LAZARD ASSET MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -4,812 | -100.0% | Q1 2025 | May 15, 2025 |
| Farther Finance Advisors, LLC | History | Reduced | 1 | 0 | — | 0.0% | — | -1,997 | -99.95% | Q2 2025 | Jul 11, 2025 |
| SIMPLEX TRADING, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -437 | -100.0% | Q1 2025 | May 12, 2025 |
| Allworth Financial LP | History | New | 201 | 0 | — | — | — | +201 | New | Q2 2025 | Aug 07, 2025 |
| NISA INVESTMENT ADVISORS, LLC | History | Reduced | 104 | 0 | — | 0.0% | — | -155 | -59.85% | Q2 2025 | Jul 31, 2025 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | New | 129 | 0 | — | — | — | +129 | New | Q2 2025 | Aug 08, 2025 |
| Rialto Wealth Management, LLC | History | New | 122 | 0 | — | — | — | +122 | New | Q2 2025 | Aug 06, 2025 |
| ROTHSCHILD INVESTMENT LLC | History | New | 50 | 0 | — | — | — | +50 | New | Q2 2025 | Aug 11, 2025 |
| Sterling Capital Management LLC | History | Added to | 87 | 0 | — | — | — | +49 | 128.95% | Q2 2025 | Aug 08, 2025 |
| True Wealth Design, LLC | History | New | 29 | 0 | — | — | — | +29 | New | Q2 2025 | Aug 06, 2025 |
| Clearstead Advisors, LLC | History | New | 9 | 0 | — | — | — | +9 | New | Q2 2025 | Aug 08, 2025 |
| OSAIC HOLDINGS, INC. | History | New | 4 | 0 | — | — | — | +4 | New | Q2 2025 | Sep 04, 2025 |
| SBI Securities Co., Ltd. | History | No change | 16 | 0 | — | — | — | 0 | 0.0% | Q2 2025 | Aug 08, 2025 |