YMAB — Y-MABS THERAPEUTICS INC
Reported value held$44.02M
Funds holding (latest)36
Sector—
YMAB (Y-MABS THERAPEUTICS INC) is tracked on HoldingsHub across five years of quarterly 13F filings. 36 funds have reported positions historically, with the sum of their latest reported stakes valued at $44.02M. No fund in our coverage reported a position in the latest filing period, which typically means the stock has fallen out of the tracked funds' portfolios rather than that it cannot be bought.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
Q2 2025 — 36 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 2.75M | $12.39M | 0.00% | Reduce |
| BlackRock Inc history | 2.75M | $12.39M | 0.00% | Reduce |
| Vanguard Group history | 1.94M | $8.76M | 0.00% | Hold |
| Geode Capital Management history | 848.46K | $3.83M | 0.00% | Hold |
| D. E. Shaw & Co history | 516.86K | $2.33M | 0.00% | Reduce |
| Northern Trust Corp history | 308.13K | $1.39M | 0.00% | Reduce |
| Morgan Stanley history | 292.57K | $1.32M | 0.00% | Reduce |
| Morgan Stanley history | 292.57K | $1.32M | 0.00% | Reduce |
| Charles Schwab Investment Management history | 278.18K | $1.25M | 0.00% | Hold |
| Bank of America Corp history | 274.16K | $1.24M | 0.00% | Reduce |
| AQR Capital Management history | 252.14K | $1.14M | 0.00% | Add |
| Citadel Advisors history | 231.64K | $1.04M | 0.00% | Add |
| Citadel Advisors history | 231.64K | $1.04M | 0.00% | Add |
| UBS Group AG history | 229.07K | $1.03M | 0.00% | Add |
| Goldman Sachs Group history | 212.75K | $959.51K | 0.00% | Add |
| Goldman Sachs Group history | 212.75K | $959.51K | 0.00% | Add |
| Renaissance Technologies history | 164.10K | $740.09K | 0.00% | Reduce |
| Renaissance Technologies history | 164.10K | $740.09K | 0.00% | Reduce |
| JPMorgan Chase & Co history | 164.06K | $739.89K | 0.00% | Reduce |
| JPMorgan Chase & Co history | 164.06K | $739.89K | 0.00% | Reduce |
| Millennium Management history | 139.96K | $631.20K | 0.00% | Reduce |
| Two Sigma Investments history | 125.30K | $565.09K | 0.00% | Reduce |
| Two Sigma Investments history | 125.30K | $565.09K | 0.00% | Reduce |
| BNY Mellon history | 99.35K | $448.08K | 0.00% | Add |
| Invesco Ltd history | 42.83K | $193.18K | 0.00% | Add |
| Marshall Wace history | 40.18K | $181.22K | 0.00% | New |
| Fidelity Management & Research (FMR) history | 30.87K | $139.22K | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 30.87K | $139.22K | 0.00% | Add |
| Deutsche Bank AG history | 28.80K | $129.90K | 0.00% | Hold |
| Deutsche Bank AG history | 28.80K | $129.90K | 0.00% | Hold |
| Wells Fargo & Co history | 19.04K | $85.86K | 0.00% | Add |
| Citigroup Inc history | 15.25K | $68.78K | 0.00% | Reduce |
| Manulife Financial history | 13.14K | $59.27K | 0.00% | Reduce |
| Legal & General Investment Management America history | 4.13K | $18.63K | 0.00% | Reduce |
| PNC Financial Services history | 129 | $582 | 0.00% | New |
| T. Rowe Price Associates history | 17.21K | $78 | 0.00% | Hold |
Q1 2025 — 37 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 2.90M | $12.86M | 0.00% | Reduce |
| BlackRock Inc history | 2.90M | $12.86M | 0.00% | Reduce |
| Vanguard Group history | 1.95M | $8.62M | 0.00% | Reduce |
| Geode Capital Management history | 849.50K | $3.76M | 0.00% | Add |
| D. E. Shaw & Co history | 549.67K | $2.44M | 0.00% | Reduce |
| Morgan Stanley history | 500.16K | $2.22M | 0.00% | Add |
| Morgan Stanley history | 500.16K | $2.22M | 0.00% | Add |
| Millennium Management history | 466.62K | $2.07M | 0.00% | Add |
| Northern Trust Corp history | 327.90K | $1.45M | 0.00% | Reduce |
| Bank of America Corp history | 282.32K | $1.25M | 0.00% | Add |
| Charles Schwab Investment Management history | 277.61K | $1.23M | 0.00% | Reduce |
| Renaissance Technologies history | 256.71K | $1.14M | 0.00% | Add |
| Renaissance Technologies history | 256.71K | $1.14M | 0.00% | Add |
| JPMorgan Chase & Co history | 247.44K | $1.10M | 0.00% | Add |
| JPMorgan Chase & Co history | 247.44K | $1.10M | 0.00% | Add |
| Wellington Management Group history | 204.05K | $903.95K | 0.00% | Add |
| Goldman Sachs Group history | 201.78K | $893.87K | 0.00% | Reduce |
| Goldman Sachs Group history | 201.78K | $893.87K | 0.00% | Reduce |
| Citadel Advisors history | 194.46K | $861.44K | 0.00% | Reduce |
| Citadel Advisors history | 194.46K | $861.44K | 0.00% | Reduce |
| AQR Capital Management history | 164.79K | $730.01K | 0.00% | Add |
| Two Sigma Investments history | 154.78K | $685.70K | 0.00% | Add |
| Two Sigma Investments history | 154.78K | $685.70K | 0.00% | Add |
| BNY Mellon history | 92.47K | $409.66K | 0.00% | Hold |
| UBS Group AG history | 91.58K | $405.68K | 0.00% | Add |
| Invesco Ltd history | 32.55K | $144.18K | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 29.26K | $129.63K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 29.26K | $129.63K | 0.00% | Reduce |
| Deutsche Bank AG history | 28.80K | $127.60K | 0.00% | Reduce |
| Deutsche Bank AG history | 28.80K | $127.60K | 0.00% | Reduce |
| Citigroup Inc history | 28.52K | $126.33K | 0.00% | Reduce |
| Principal Global Investors history | 22.43K | $99.38K | 0.00% | Add |
| Wells Fargo & Co history | 17.85K | $79.08K | 0.00% | Add |
| Manulife Financial history | 13.94K | $61.75K | 0.00% | Add |
| Legal & General Investment Management America history | 8.57K | $37.97K | 0.00% | Reduce |
| T. Rowe Price Associates history | 17.21K | $77 | 0.00% | Add |
| Lazard Asset Management history | 4.81K | $21 | 0.00% | New |
Q4 2024 — 32 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 3.00M | $23.48M | 0.00% | Reduce |
| Vanguard Group history | 2.00M | $15.66M | 0.00% | Reduce |
| Geode Capital Management history | 822.31K | $6.44M | 0.00% | Add |
| D. E. Shaw & Co history | 615.13K | $4.82M | 0.00% | Reduce |
| Northern Trust Corp history | 359.22K | $2.81M | 0.00% | Add |
| Morgan Stanley history | 320.81K | $2.51M | 0.00% | Add |
| Charles Schwab Investment Management history | 284.54K | $2.23M | 0.00% | Add |
| Citadel Advisors history | 228.41K | $1.79M | 0.00% | Reduce |
| Goldman Sachs Group history | 219.18K | $1.72M | 0.00% | Reduce |
| Wellington Management Group history | 133.26K | $1.04M | 0.00% | Reduce |
| Renaissance Technologies history | 131.60K | $1.03M | 0.00% | Add |
| Bank of America Corp history | 127.16K | $995.65K | 0.00% | Add |
| JPMorgan Chase & Co history | 97.66K | $764.68K | 0.00% | Add |
| BNY Mellon history | 92.45K | $723.88K | 0.00% | Add |
| Two Sigma Investments history | 88.34K | $691.68K | 0.00% | Add |
| Franklin Resources history | 67.37K | $527.48K | 0.00% | Hold |
| Fidelity Management & Research (FMR) history | 51.72K | $404.98K | 0.00% | Add |
| Citigroup Inc history | 49.23K | $385.48K | 0.00% | Add |
| Marshall Wace history | 49.23K | $385.43K | 0.00% | Add |
| UBS Group AG history | 38.93K | $304.84K | 0.00% | Reduce |
| Millennium Management history | 35.45K | $277.55K | 0.00% | Reduce |
| Legal & General Investment Management America history | 34.94K | $273.60K | 0.00% | Reduce |
| Deutsche Bank AG history | 32.25K | $252.54K | 0.00% | Add |
| Principal Global Investors history | 22.20K | $173.80K | 0.00% | Add |
| Prudential Financial history | 18.62K | $145.83K | 0.00% | Reduce |
| Wells Fargo & Co history | 17.46K | $136.70K | 0.00% | Add |
| AQR Capital Management history | 17.00K | $133.11K | 0.00% | Reduce |
| Janus Henderson Group history | 16.30K | $127.55K | 0.00% | Hold |
| Invesco Ltd history | 14.92K | $116.85K | 0.00% | Add |
| Manulife Financial history | 13.82K | $108.19K | 0.00% | Reduce |
| Point72 Asset Management history | 550 | $4.31K | 0.00% | Reduce |
| T. Rowe Price Associates history | 14.07K | $111 | 0.00% | Reduce |
Q3 2024 — 33 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 3.03M | $39.78M | 0.00% | New |
| Vanguard Group history | 2.04M | $26.77M | 0.00% | Add |
| Geode Capital Management history | 813.49K | $10.70M | 0.00% | Add |
| D. E. Shaw & Co history | 787.54K | $10.36M | 0.01% | Reduce |
| Northern Trust Corp history | 337.29K | $4.44M | 0.00% | Add |
| Citadel Advisors history | 295.25K | $3.88M | 0.00% | Add |
| Charles Schwab Investment Management history | 279.58K | $3.68M | 0.00% | Add |
| Morgan Stanley history | 248.72K | $3.27M | 0.00% | Add |
| Goldman Sachs Group history | 222.60K | $2.93M | 0.00% | Add |
| Wellington Management Group history | 136.71K | $1.80M | 0.00% | Reduce |
| Point72 Asset Management history | 95.38K | $1.25M | 0.00% | Reduce |
| BNY Mellon history | 91.56K | $1.20M | 0.00% | Reduce |
| Bank of America Corp history | 79.72K | $1.05M | 0.00% | Add |
| Franklin Resources history | 67.29K | $978.38K | 0.00% | Hold |
| Millennium Management history | 71.59K | $941.36K | 0.00% | Reduce |
| Two Sigma Investments history | 67.14K | $882.90K | 0.00% | Add |
| UBS Group AG history | 44.59K | $586.30K | 0.00% | Add |
| Legal & General Investment Management America history | 37.70K | $495.69K | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 36.42K | $478.87K | 0.00% | Add |
| Prudential Financial history | 30.62K | $402.72K | 0.00% | Reduce |
| JPMorgan Chase & Co history | 30.34K | $398.91K | 0.00% | Add |
| Renaissance Technologies history | 27.90K | $366.88K | 0.00% | Reduce |
| Citigroup Inc history | 27.36K | $359.77K | 0.00% | Add |
| AQR Capital Management history | 27.25K | $358.30K | 0.00% | Add |
| Deutsche Bank AG history | 21.19K | $278.70K | 0.00% | Reduce |
| Principal Global Investors history | 20.29K | $266.87K | 0.00% | New |
| Janus Henderson Group history | 16.30K | $214.18K | 0.00% | Hold |
| Marshall Wace history | 15.51K | $203.94K | 0.00% | New |
| Invesco Ltd history | 14.56K | $191.41K | 0.00% | Add |
| Manulife Financial history | 14.09K | $185.23K | 0.00% | Reduce |
| Wells Fargo & Co history | 11.33K | $148.95K | 0.00% | Reduce |
| T. Rowe Price Associates history | 22.54K | $297 | 0.00% | Add |
| Lazard Asset Management history | 4.22K | $55 | 0.00% | New |
Q2 2024 — 31 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 1.96M | $23.64M | 0.00% | Reduce |
| D. E. Shaw & Co history | 926.46K | $11.19M | 0.01% | Reduce |
| Geode Capital Management history | 765.64K | $9.25M | 0.00% | Add |
| Point72 Asset Management history | 358.94K | $4.34M | 0.01% | Reduce |
| Millennium Management history | 349.78K | $4.23M | 0.00% | Add |
| Northern Trust Corp history | 317.81K | $3.84M | 0.00% | Reduce |
| Citadel Advisors history | 281.44K | $3.40M | 0.00% | Add |
| Charles Schwab Investment Management history | 255.59K | $3.09M | 0.00% | Add |
| Morgan Stanley history | 203.14K | $2.45M | 0.00% | Add |
| Wellington Management Group history | 160.44K | $1.94M | 0.00% | Add |
| Goldman Sachs Group history | 138.74K | $1.68M | 0.00% | Reduce |
| BNY Mellon history | 120.95K | $1.46M | 0.00% | Add |
| MFS Investment Management history | 82.20K | $993.00K | 0.00% | Add |
| Franklin Resources history | 66.98K | $809.08K | 0.00% | Add |
| Renaissance Technologies history | 64.64K | $780.82K | 0.00% | Reduce |
| Prudential Financial history | 62.73K | $757.72K | 0.00% | Reduce |
| Two Sigma Investments history | 61.32K | $740.70K | 0.00% | Reduce |
| Bank of America Corp history | 44.68K | $539.77K | 0.00% | Add |
| Balyasny Asset Management history | 43.97K | $531.19K | 0.00% | New |
| Legal & General Investment Management America history | 36.58K | $441.90K | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 29.59K | $357.50K | 0.00% | Add |
| JPMorgan Chase & Co history | 27.48K | $331.97K | 0.00% | Reduce |
| Deutsche Bank AG history | 22.54K | $272.24K | 0.00% | Add |
| AQR Capital Management history | 21.93K | $264.87K | 0.00% | Reduce |
| UBS Group AG history | 19.00K | $229.57K | 0.00% | Reduce |
| Janus Henderson Group history | 16.30K | $196.74K | 0.00% | New |
| Manulife Financial history | 14.42K | $174.22K | 0.00% | Reduce |
| Invesco Ltd history | 14.23K | $171.86K | 0.00% | Add |
| Wells Fargo & Co history | 11.78K | $142.25K | 0.00% | Reduce |
| Citigroup Inc history | 8.97K | $108.35K | 0.00% | Add |
| T. Rowe Price Associates history | 22.28K | $270 | 0.00% | Add |
Q1 2024 — 30 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 2.07M | $33.65M | 0.00% | Reduce |
| Point72 Asset Management history | 1.53M | $24.83M | 0.06% | New |
| D. E. Shaw & Co history | 1.07M | $17.37M | 0.02% | Reduce |
| Geode Capital Management history | 742.75K | $12.08M | 0.00% | Add |
| Goldman Sachs Group history | 365.54K | $5.94M | 0.00% | Reduce |
| Northern Trust Corp history | 321.71K | $5.23M | 0.00% | Reduce |
| Millennium Management history | 282.55K | $4.59M | 0.00% | Add |
| Charles Schwab Investment Management history | 250.22K | $4.07M | 0.00% | Add |
| Morgan Stanley history | 188.10K | $3.06M | 0.00% | Reduce |
| Citadel Advisors history | 150.10K | $2.44M | 0.00% | Add |
| Wellington Management Group history | 146.30K | $2.38M | 0.00% | New |
| BNY Mellon history | 111.98K | $1.82M | 0.00% | Reduce |
| Two Sigma Investments history | 104.30K | $1.70M | 0.00% | Add |
| MFS Investment Management history | 79.44K | $1.29M | 0.00% | Hold |
| Prudential Financial history | 65.16K | $1.06M | 0.00% | Reduce |
| AQR Capital Management history | 37.84K | $615.29K | 0.00% | New |
| UBS Group AG history | 37.55K | $610.51K | 0.00% | Add |
| Franklin Resources history | 32.98K | $536.27K | 0.00% | Add |
| JPMorgan Chase & Co history | 31.17K | $506.79K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 27.97K | $454.73K | 0.00% | Reduce |
| Deutsche Bank AG history | 18.64K | $303.07K | 0.00% | Hold |
| Manulife Financial history | 14.68K | $238.62K | 0.00% | Reduce |
| Principal Global Investors history | 13.73K | $223.23K | 0.00% | Reduce |
| Invesco Ltd history | 13.29K | $216.06K | 0.00% | Hold |
| Bank of America Corp history | 13.14K | $213.61K | 0.00% | Reduce |
| Wells Fargo & Co history | 12.02K | $195.36K | 0.00% | Add |
| Citigroup Inc history | 6.75K | $109.67K | 0.00% | Add |
| Legal & General Investment Management America history | 3.31K | $53.84K | 0.00% | Reduce |
| Renaissance Technologies history | 115.30K | $1.88K | 0.00% | Reduce |
| T. Rowe Price Associates history | 21.16K | $345 | 0.00% | Add |
New Positions (latest)
No fund opened a new position this quarter.
Fully Exited (vs previous quarter)
No tracked fund fully exited this quarter.
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 | Q2 2024 | Q1 2024 | Q4 2023 | Q3 2023 | Q2 2023 | Q1 2023 | Q4 2022 | Q3 2022 | Q2 2022 | Q1 2022 | Q4 2021 | Q3 2021 | Q2 2021 | Q1 2021 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock Inc | 2.75M | 2.90M | 3.00M | 3.03M | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Vanguard Group | 1.94M | 1.95M | 2.00M | 2.04M | 1.96M | 2.07M | 2.24M | 2.23M | 2.23M | 2.28M | 2.26M | 1.92M | 1.93M | 1.79M | 1.82M | 1.80M | 1.64M | 1.60M |
| Geode Capital Management | 848.46K | 849.50K | 822.31K | 813.49K | 765.64K | 742.75K | 738.55K | 710.83K | 711.66K | 662.64K | 631.29K | 632.89K | 626.17K | 583.53K | 620.98K | 577.11K | — | — |
| D. E. Shaw & Co | 516.86K | 549.67K | 615.13K | 787.54K | 926.46K | 1.07M | 1.32M | 1.35M | 1.28M | 790.96K | 468.66K | 115.49K | 41.39K | 138.66K | — | — | — | — |
| Northern Trust Corp | 308.13K | 327.90K | 359.22K | 337.29K | 317.81K | 321.71K | 325.44K | 323.19K | 328.52K | 302.33K | 320.41K | 329.02K | 333.10K | 327.25K | 343.99K | 347.03K | — | — |
| Morgan Stanley | 292.57K | 500.16K | 320.81K | 248.72K | 203.14K | 188.10K | 245.15K | 107.87K | 130.62K | 250.45K | 293.96K | 255.49K | 374.16K | 541.56K | 290.38K | 84.01K | — | — |
| Charles Schwab Investment Management | 278.18K | 277.61K | 284.54K | 279.58K | 255.59K | 250.22K | 247.51K | 249.44K | 257.10K | 235.64K | 251.56K | 248.41K | 247.61K | 233.76K | 244.74K | 239.62K | — | — |
| Bank of America Corp | 274.16K | 282.32K | 127.16K | 79.72K | 44.68K | 13.14K | 36.51K | 34.44K | 35.72K | 85.45K | 23.12K | 103.59K | 68.91K | 398.82K | 81.92K | 80.26K | — | — |
| AQR Capital Management | 252.14K | 164.79K | 17.00K | 27.25K | 21.93K | 37.84K | — | 245.48K | 199.50K | 479.29K | 480.17K | — | — | — | — | — | — | — |
| Citadel Advisors | 231.64K | 194.46K | 228.41K | 295.25K | 281.44K | 150.10K | 141.40K | 417.21K | 38.21K | 314.81K | 964.82K | 143.26K | 90.30K | 207.03K | 125.70K | 115.61K | — | — |
| UBS Group AG | 229.07K | 91.58K | 38.93K | 44.59K | 19.00K | 37.55K | 36.74K | 19.53K | 21.07K | 76.26K | — | 12.59K | 25.57K | 134.18K | 64.45K | 25.56K | — | — |
| Goldman Sachs Group | 212.75K | 201.78K | 219.18K | 222.60K | 138.74K | 365.54K | 397.95K | 389.35K | 402.65K | 190.79K | 316.85K | 183.08K | 151.73K | 126.11K | 217.36K | 813.36K | — | — |
| Renaissance Technologies | 164.10K | 256.71K | 131.60K | 27.90K | 64.64K | 115.30K | 174.80K | 237.09K | 216.20K | 87.40K | 53.50K | 127.90K | 149.80K | 91.00K | 98.60K | — | — | — |
| JPMorgan Chase & Co | 164.06K | 247.44K | 97.66K | 30.34K | 27.48K | 31.17K | 41.36K | 32.52K | 38.52K | 167.31K | 32.68K | 33.98K | 32.66K | 42.32K | 37.57K | 35.88K | — | — |
| Millennium Management | 139.96K | 466.62K | 35.45K | 71.59K | 349.78K | 282.55K | 21.06K | 346.92K | 329.57K | 623.09K | 1.13M | 23.63K | 81.78K | — | 12.61K | — | — | — |
| Two Sigma Investments | 125.30K | 154.78K | 88.34K | 67.14K | 61.32K | 104.30K | 61.84K | 73.03K | 164.77K | 155.63K | 209.47K | — | — | — | 38.79K | — | — | — |
| BNY Mellon | 99.35K | 92.47K | 92.45K | 91.56K | 120.95K | 111.98K | 119.97K | 119.61K | 118.29K | 112.53K | 113.34K | 113.36K | 102.66K | 104.14K | 103.34K | 103.63K | — | — |
| Invesco Ltd | 42.83K | 32.55K | 14.92K | 14.56K | 14.23K | 13.29K | 13.26K | 11.78K | 11.78K | 13.53K | 14.35K | 16.80K | 115.30K | 15.14K | 15.03K | 16.43K | — | — |
| Marshall Wace | 40.18K | — | 49.23K | 15.51K | — | — | 114.79K | 98.93K | 127.67K | — | — | 20.47K | — | — | — | — | — | — |
| Fidelity Management & Research (FMR) | 30.87K | 29.26K | 51.72K | 36.42K | 29.59K | 27.97K | 36.84K | 36.08K | 36.97K | 1.31K | 1.20K | 1.38M | 1.97M | 1.97M | 1.53M | 1.53M | — | — |