Adaptive Biotechnologies Corp. 13F holders
301 funds reported a position in Adaptive Biotechnologies Corp. in their 13F for the quarter ended 30 June 2026, together 155.9 million shares worth $3.34 billion. Against the quarter before, 41 opened a position, 110 added, 88 trimmed and 41 sold out; together they bought a net 3.9 million shares. The largest holders: Viking Global Investors LP, BlackRock, Inc. and Vanguard Capital Management LLC.
Funds holding301+3 on Q1 2026
Shares they held155.9Mworth $3.34 billion
Net bought on the quarter3.9M sharesabout $83.5 million at the funds' values
Funds buying to selling151 to 129opened or added, to cut or sold
Opened 41Added 110Held 59Trimmed 88Sold out 41
What each fund did in ADPT against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in ADPT 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, 48 reported a position in Adaptive Biotechnologies Corp.: 5 opened one, 14 added, 14 trimmed and 6 sold out, a net 580,440 shares sold.
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 Adaptive Biotechnologies Corp. in a 13F for the quarter ended 30 June 2026. The largest: Viking Global Investors, 30.0 million shares worth $643.4 million, 1.8% of its reported book. Sold out: Two Sigma Investments, Point72 Asset Management. In the quarter, 3 funds added or opened a position and 6 trimmed or sold out; together they sold a net 1.7 million shares, about $37.3 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 |
|---|---|---|---|---|---|---|---|
| Viking Global Investors | 29,993,708 | $643.4 million | 1.8% | no change | held | 30 June 2026 | 13F |
| Geode Capital Management | 3,641,837 | $78.1 million | 0.0% | +5,783 | added | 30 June 2026 | 13F |
| ARK Investment Management | 2,090,306 | $44.8 million | 0.3% | -2,663 | trimmed | 30 June 2026 | 13F |
| FMR LLC | 709,534 | $15.2 million | 0.0% | +142,502 | added | 30 June 2026 | 13F |
| Millennium Management | 504,909 | $10.8 million | 0.0% | -576,457 | trimmed | 30 June 2026 | 13F |
| Renaissance Technologies | 302,800 | $6.5 million | 0.0% | +63,000 | added | 30 June 2026 | 13F |
| Citadel Advisors | 181,356 | $3.9 million | 0.0% | -181,977 | trimmed | 30 June 2026 | 13F |
| Bridgewater Associates | 40,087 | $859,866 | 0.0% | -49,620 | trimmed | 30 June 2026 | 13F |
| Two Sigma Investments | 0 | $0 | 0.0% | -118,200 | exited | 30 June 2026 | 13F |
| Point72 Asset Management | 0 | $0 | 0.0% | -1,021,808 | exited | 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 |
|---|---|---|---|---|---|---|
| Viking Global Investors LP | 29,993,708 | 19.24% | $643.4 million | 1.83% | no change | 13F |
| BlackRock, Inc. | 15,139,159 | 9.71% | $324.7 million | 0.01% | +1,836,134 | 13F |
| Vanguard Capital Management LLC | 6,403,587 | 4.11% | $137.4 million | 0.00% | +309,443 | 13F |
| Wellington Management Group LLP | 5,911,366 | 3.79% | $126.8 million | 0.02% | +2,053,944 | 13F |
| Vanguard Portfolio Management LLC | 5,476,231 | 3.51% | $117.5 million | 0.01% | +984,757 | 13F |
| D. E. Shaw & Co., Inc. | 4,625,859 | 2.97% | $99.2 million | 0.06% | +2,660,249 | 13F |
| Westfield Capital Management Co. LP | 4,267,645 | 2.74% | $91.5 million | 0.30% | -1,169,073 | 13F |
| Geode Capital Management, LLC | 3,641,837 | 2.34% | $78.1 million | 0.00% | +5,783 | 13F |
| State Street Corp. | 3,458,388 | 2.22% | $74.2 million | 0.00% | +231,143 | 13F |
| Invesco Ltd. | 3,094,011 | 1.99% | $66.4 million | 0.01% | -1,356,055 | 13F |
| Goldman Sachs Group Inc. | 2,984,227 | 1.91% | $64.0 million | 0.01% | -257,850 | 13F |
| Price T Rowe Associates Inc. | 2,665,308 | 1.71% | $57.2 million | 0.01% | +1,099,095 | 13F |
| Driehaus Capital Management LLC | 2,527,703 | 1.62% | $54.2 million | 0.31% | +777,102 | 13F |
| Arrowstreet Capital, Limited Partnership | 2,524,620 | 1.62% | $54.2 million | 0.02% | +529,418 | 13F |
| Lord, Abbett & Co. LLC | 2,474,814 | 1.59% | $53.1 million | 0.16% | -1,061,289 | 13F |
| Nuveen, LLC | 2,366,155 | 1.52% | $50.8 million | 0.01% | +1,061,995 | 13F |
| BNP Paribas Asset Management Holding S.A. | 2,182,326 | 1.40% | $46.8 million | 0.05% | -505,755 | 13F |
| Fred Alger Management, LLC | 2,092,284 | 1.34% | $44.9 million | 0.15% | +29,138 | 13F |
| ARK Investment Management LLC | 2,090,306 | 1.34% | $44.8 million | 0.29% | -2,663 | 13F |
| Nomura Asset Management International Inc. | 1,889,188 | 1.21% | $40.5 million | 0.06% | +8,005 | 13F |
| Aristotle Atlantic Partners, LLC | 1,838,513 | 1.18% | $39.4 million | 1.64% | +124,167 | 13F |
| T. Rowe Price Investment Management, Inc. | 1,779,651 | 1.14% | $38.2 million | 0.03% | +860,373 | 13F |
| Bank of America Corp. | 1,730,044 | 1.11% | $37.1 million | 0.00% | +502,127 | 13F |
| Jane Street Group, LLC | 1,590,513 | 1.02% | $34.1 million | 0.02% | +908,331 | 13F |
| Northern Trust Corp. | 1,507,351 | 0.97% | $32.3 million | 0.00% | +115,019 | 13F |
| Sumitomo Mitsui Trust Group, Inc. | 1,329,856 | 0.85% | $28.5 million | 0.02% | -265,514 | 13F |
| Amova Asset Management Americas, Inc. | 1,329,856 | 0.85% | $28.5 million | 0.37% | -265,514 | 13F |
| Oberweis Asset Management Inc. | 1,258,751 | 0.81% | $27.0 million | 0.56% | +451,800 | 13F |
| Perceptive Advisors LLC | 1,217,325 | 0.78% | $26.1 million | 0.41% | +1,064,825 | 13F |
| Charles Schwab Investment Management Inc. | 1,178,552 | 0.76% | $25.3 million | 0.00% | +32,870 | 13F |
| Ameriprise Financial Inc. | 1,087,754 | 0.70% | $23.3 million | 0.01% | -1,929,587 | 13F |
| Massachusetts Financial Services Co. | 1,071,935 | 0.69% | $23.0 million | 0.01% | -396 | 13F |
| Blue Water Life Science Advisors, LP | 1,010,145 | 0.65% | $21.7 million | 13.65% | no change | 13F |
| Vanguard Fiduciary Trust Co. | 934,709 | 0.60% | $20.0 million | 0.00% | +63,750 | 13F |
| Aberdeen Group plc | 918,998 | 0.59% | $19.7 million | 0.03% | -151,629 | 13F |
| Freestone Grove Partners LP | 881,688 | 0.57% | $18.9 million | 0.12% | new | 13F |
| Kennedy Capital Management LLC | 849,795 | 0.55% | $18.2 million | 0.32% | -81,727 | 13F |
| HRT Financial LP | 795,168 | 0.51% | $17.1 million | 0.03% | +663,927 | 13F |
| Connor, Clark & Lunn Investment Management Ltd. | 785,903 | 0.50% | $16.9 million | 0.03% | +136,276 | 13F |
| Panagora Asset Management Inc. | 777,615 | 0.50% | $16.7 million | 0.05% | +261,689 | 13F |
| Morgan Stanley | 766,230 | 0.49% | $16.4 million | 0.00% | -200,890 | 13F |
| Granite Investment Partners, LLC | 757,217 | 0.49% | $16.2 million | 0.83% | +257,156 | 13F |
| Trexquant Investment LP | 736,260 | 0.47% | $15.8 million | 0.10% | +164,676 | 13F |
| FMR LLC | 709,534 | 0.46% | $15.2 million | 0.00% | +142,502 | 13F |
| Jennison Associates LLC | 686,195 | 0.44% | $14.7 million | 0.01% | -66,878 | 13F |
| Hillsdale Investment Management Inc. | 684,217 | 0.44% | $14.7 million | 0.34% | +59,000 | 13F |
| Next Century Growth Investors LLC | 609,830 | 0.39% | $13.1 million | 0.69% | +105,484 | 13F |
| Wasatch Advisors LP | 576,266 | 0.37% | $12.4 million | 0.08% | new | 13F |
| Tudor Investment Corp. Et Al | 543,485 | 0.35% | $11.7 million | 0.05% | -242,796 | 13F |
| ExodusPoint Capital Management, LP | 518,146 | 0.33% | $11.1 million | 0.10% | -36,874 | 13F |
The 50 largest of the 301 funds that reported a position in ADPT 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 ADPT
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 77,000 | $1.7 million | 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 |
|---|---|---|---|---|---|---|---|
| 15 May 2026 | 13G/A | Viking Global Investors LP and 15 others | 30.0 million | 18.8% | 31 March 2026 | passive, other (13d-1(d)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 21 January 2026 | 13G/A | BlackRock, Inc. and 1 other | 12.0 million | 7.9% | 31 December 2025 | passive, institutional (13d-1(b)) | 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 | 15 | $27.89 | SEC |
| 8 September 2026 | 6,479 | $24.28 | SEC |
| 27 August 2026 | 153 | $26.16 | SEC |
| 24 August 2026 | 480 | $25.99 | 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.