NewAmsterdam Pharma Co. N.V. 13F holders
194 funds reported a position in NewAmsterdam Pharma Co. N.V. in their 13F for the quarter ended 30 June 2026, together 122.0 million shares worth $4.13 billion. Against the quarter before, 41 opened a position, 70 added, 50 trimmed and 20 sold out; together they sold a net 2.1 million shares. The largest holders: Frazier Life Sciences Management, L.P., Capital World Investors and FMR LLC.
Funds holding194+23 on Q1 2026
Shares they held122.0Mworth $4.13 billion
Net sold on the quarter2.1M sharesabout $72.0 million at the funds' values
Funds buying to selling111 to 70opened or added, to cut or sold
Opened 41Added 70Held 31Trimmed 50Sold out 20
What each fund did in NAMS against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in NAMS in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
2,671 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 14 reported a position in NewAmsterdam Pharma Co. N.V.: 2 opened one, 4 added, 1 trimmed and 7 sold out, a net 123,372 shares sold.
| Fund | Change in shares | Shares now | Status | Filing |
|---|---|---|---|---|
| GF Fund Management Co. Ltd | +1,145 | 3,579 | added | 13F |
| SBI Securities Co., Ltd. | +411 | 1,026 | added | 13F |
| Nisa Investment Advisors, LLC | +162 | 371 | added | 13F |
| Essential Partners LLC | -51 | 2 | trimmed | 13F |
| Signaturefd, LLC | +47 | 47 | new | 13F |
| SJS Investment Consulting Inc. | +32 | 32 | new | 13F |
| Farther Finance Advisors, LLC | +11 | 1,017 | added | 13F |
| AdvisorNet Financial, Inc | -8,375 | 0 | sold out | 13F |
| Eleva Capital SAS | -25,721 | 0 | sold out | 13F |
| Gamma Investing LLC | -9 | 0 | sold out | 13F |
| PSP Research LLC | -12,000 | 0 | sold out | 13F |
| Roxbury Financial LLC | -563 | 0 | sold out | 13F |
| Stone House Investment Management, LLC | -325 | 0 | sold out | 13F |
| Y-Intercept (Hong Kong) Ltd | -78,136 | 0 | sold out | 13F |
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 8 reported a position in NewAmsterdam Pharma Co. N.V. in a 13F for the quarter ended 30 June 2026. The largest: FMR LLC, 10.3 million shares worth $350.4 million, 0.0% of its reported book. New this quarter: Point72 Asset Management, Two Sigma Investments. In the quarter, 5 funds added or opened a position and 1 trimmed or sold out; together they bought a net 1.9 million shares, about $64.0 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| FMR LLC | 10,339,663 | $350.4 million | 0.0% | +1,573,852 | added | 30 June 2026 | 13F |
| Viking Global Investors | 4,203,567 | $142.5 million | 0.4% | no change | held | 30 June 2026 | 13F |
| Duquesne Family Office | 3,070,146 | $104.0 million | 2.4% | no change | held | 30 June 2026 | 13F |
| Citadel Advisors | 645,805 | $21.9 million | 0.0% | -66,259 | trimmed | 30 June 2026 | 13F |
| Millennium Management | 501,614 | $17.0 million | 0.0% | +197,766 | added | 30 June 2026 | 13F |
| Point72 Asset Management | 168,901 | $5.7 million | 0.0% | +168,901 | new | 30 June 2026 | 13F |
| Geode Capital Management | 105,169 | $3.6 million | 0.0% | +773 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 12,001 | $406,714 | 0.0% | +12,001 | new | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 18,088,902 | 14.83% | $613.0 million | 13.35% | +1,145,128 | 13F |
| Capital World Investors | 12,230,557 | 10.03% | $414.5 million | 0.05% | +1,121,523 | 13F |
| FMR LLC | 10,339,663 | 8.48% | $350.4 million | 0.01% | +1,573,852 | 13F |
| Ra Capital Management, L.P. | 9,550,191 | 7.83% | $323.7 million | 2.81% | no change | 13F |
| Fcpm III Services B.V. | 8,490,353 | 6.96% | $287.7 million | 38.34% | -708,547 | 13F |
| Deerfield Management Company, L.P. | 4,264,789 | 3.50% | $144.5 million | 1.80% | no change | 13F |
| Viking Global Investors LP | 4,203,567 | 3.45% | $142.5 million | 0.41% | no change | 13F |
| Bain Capital Life Sciences Investors, LLC | 3,806,566 | 3.12% | $129.0 million | 7.67% | -3,500,000 | 13F |
| Maverick Capital Ltd | 3,267,802 | 2.68% | $110.7 million | 1.00% | +1,081,400 | 13F |
| Duquesne Family Office LLC | 3,070,146 | 2.52% | $104.0 million | 2.39% | no change | 13F |
| Jupiter Topco LLC | 2,535,682 | 2.08% | $86.0 million | 0.04% | first 13F | 13F |
| Medicxi Ventures Management (Jersey) Ltd | 2,208,639 | 1.81% | $74.9 million | 42.19% | -465,543 | 13F |
| Jennison Associates LLC | 2,102,286 | 1.72% | $71.2 million | 0.04% | -648,117 | 13F |
| Orbis Allan Gray Ltd | 1,747,627 | 1.43% | $59.2 million | 0.20% | new | 13F |
| Polar Capital Holdings Plc | 1,724,518 | 1.41% | $58.4 million | 0.17% | -1,107,089 | 13F |
| Capital International Investors | 1,723,495 | 1.41% | $58.4 million | 0.01% | +282,364 | 13F |
| Goldman Sachs Group Inc. | 1,544,911 | 1.27% | $52.4 million | 0.01% | -401,463 | 13F |
| Westfield Capital Management Co. LP | 1,536,472 | 1.26% | $52.1 million | 0.17% | -666,441 | 13F |
| Castle Hook Partners LP | 1,371,005 | 1.12% | $46.5 million | 0.50% | +328,368 | 13F |
| Ameriprise Financial Inc. | 1,253,549 | 1.03% | $42.5 million | 0.01% | +500,495 | 13F |
| AllianceBernstein L.P. | 1,259,940 | 1.03% | $40.3 million | 0.01% | +60,615 | 13F |
| Price T Rowe Associates Inc. | 1,167,357 | 0.96% | $39.6 million | 0.00% | new | 13F |
| JPMorgan Chase & Co. | 1,132,955 | 0.93% | $38.4 million | 0.00% | +248,727 | 13F |
| Aberdeen Group plc | 1,102,785 | 0.90% | $37.4 million | 0.05% | +265,780 | 13F |
| BlackRock, Inc. | 1,063,750 | 0.87% | $36.1 million | 0.00% | +177,134 | 13F |
| Franklin Resources Inc. | 993,917 | 0.81% | $33.7 million | 0.01% | +223,757 | 13F |
| TimesSquare Capital Management, LLC | 796,162 | 0.65% | $27.0 million | 0.40% | +44,174 | 13F |
| BNP Paribas Asset Management Holding S.A. | 781,140 | 0.64% | $26.5 million | 0.03% | -176,302 | 13F |
| Susquehanna International Group, LLP | 754,327 | 0.62% | $25.6 million | 0.02% | +736,502 | 13F |
| Woodline Partners LP | 752,489 | 0.62% | $25.5 million | 0.08% | +181 | 13F |
| Bank of America Corp. | 735,483 | 0.60% | $24.9 million | 0.00% | -111,606 | 13F |
| Nwi Management LP | 702,000 | 0.58% | $23.8 million | 1.52% | no change | 13F |
| American Century Companies Inc. | 684,813 | 0.56% | $23.2 million | 0.01% | +165,358 | 13F |
| Citadel Advisors LLC | 645,805 | 0.53% | $21.9 million | 0.01% | -66,259 | 13F |
| Rock Springs Capital Management LP | 582,744 | 0.48% | $19.7 million | 0.96% | -6,050 | 13F |
| First Turn Management, LLC | 582,497 | 0.48% | $19.7 million | 2.11% | +24,161 | 13F |
| Morgan Stanley | 575,825 | 0.47% | $19.5 million | 0.00% | +20,064 | 13F |
| Adage Capital Partners GP, L.l.c. | 550,000 | 0.45% | $18.6 million | 0.03% | -556,631 | 13F |
| Artia Global Partners LP | 503,936 | 0.41% | $17.1 million | 3.25% | no change | 13F |
| Millennium Management LLC | 501,614 | 0.41% | $17.0 million | 0.01% | +197,766 | 13F |
| Cormorant Asset Management, LP | 500,000 | 0.41% | $16.9 million | 0.87% | -450,000 | 13F |
| Jane Street Group, LLC | 474,236 | 0.39% | $16.1 million | 0.01% | +309,035 | 13F |
| Kennedy Capital Management LLC | 421,374 | 0.35% | $14.3 million | 0.25% | +12,882 | 13F |
| Bank of New York Mellon Corp | 353,298 | 0.29% | $12.0 million | 0.00% | -25,502 | 13F |
| HRT Financial LP | 349,843 | 0.29% | $11.9 million | 0.02% | new | 13F |
| UBS Group AG | 344,065 | 0.28% | $11.7 million | 0.00% | -450,911 | 13F |
| Slate Path Capital LP | 319,000 | 0.26% | $10.8 million | 0.15% | no change | 13F |
| Lord, Abbett & Co. LLC | 306,560 | 0.25% | $10.4 million | 0.03% | +111,205 | 13F |
| ExodusPoint Capital Management, LP | 304,334 | 0.25% | $10.3 million | 0.10% | new | 13F |
| Eversept Partners, LP | 275,471 | 0.23% | $9.3 million | 0.51% | -10,293 | 13F |
The 50 largest of the 194 funds that reported a position in NAMS in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on NAMS
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 38,400 | $1.3 million | 30 June 2026 | 13F |
| Point72 Asset Management | Calls | 18,300 | $620,187 | 30 June 2026 | 13F |
| Point72 Asset Management | Puts | 18,300 | $620,187 | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 22 September 2026 | 13D/A | Frazier Life Sciences X, L.P. and 14 others | 10.4 million | 8.7% | 18 September 2026 | EDGAR | |
| 6 August 2026 | 13G/A | FMR LLC and 3 others | 10.3 million | 8.8% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 4 June 2026 | 13G/A | Capital World Investors and 1 other | 12.2 million | 10.4% | 29 May 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 14 May 2026 | 13D/A | BCLS Fund III Investments, LP and 5 others | 2.1 million | 1.8% | 12 May 2026 | EDGAR | |
| 6 May 2026 | 13G/A | FMR LLC and 3 others | 8.8 million | 7.6% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 17 February 2026 | 13G/A | Viking Global Investors LP and 21 others | 4.2 million | 3.7% | 31 December 2025 | passive, under 20% (13d-1(c)) | EDGAR |
| 5 February 2026 | 13G | FMR LLC and 3 others | 6.4 million | 5.7% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 4 December 2025 | 13D/A | BCLS Fund III Investments, LP and 5 others | 5.4 million | 4.7% | 2 December 2025 | EDGAR | |
| 13 November 2025 | 13G/A | Capital World Investors and 1 other | 9.8 million | 8.7% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 7 November 2025 | 13D/A | BCLS Fund III Investments, LP and 5 others | 11.4 million | 10.0% | 5 November 2025 | Item 4 of the Initial Statement is hereby amended and supplemented to add the following: Nicholas Downing resigned from the Issuer's Board of Directors and its committees, effective as of November 5, 2025. | EDGAR |
| 4 November 2025 | 13D/A | Frazier Life Sciences X, L.P. and 14 others | 8.6 million | 7.7% | 1 November 2025 | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 24 September 2026 | 115,916 | $22.68 | SEC |
| 22 September 2026 | 1,866 | $22.58 | SEC |
| 18 September 2026 | 2,763 | $21.93 | SEC |
| 17 September 2026 | 32 | $21.18 | SEC |
| 9 September 2026 | 10,021 | $25.63 | SEC |
| 4 September 2026 | 2,393 | $25.85 | SEC |
| 3 September 2026 | 4,953 | $25.59 | SEC |
| 2 September 2026 | 35 | $24.92 | SEC |
| 31 August 2026 | 50 | $25.90 | SEC |
| 26 August 2026 | 17,471 | $27.34 | SEC |
| 25 August 2026 | 7,987 | $26.85 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.