Adaptimmune Therapeutics PLC
ADAPY- Exchange
- OTC
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001621227
No open-market purchases or sales by Adaptimmune Therapeutics PLC insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Adaptimmune Therapeutics PLC as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 10
- −45 vs. Q3 2025
- Shares held
- 1.66M
- −40.4M (−96.1%) vs. Q3 2025
- Total value
- $79.7K
- −$5.39M (−98.5%) vs. Q3 2025
- New holders
- 1
- 2 more added
- Sold out
- 46
- 4 more reduced
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ADAPY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 1 | $72 |
| Q4 2025 | 10 | $79.7K |
| Q3 2025 | 55 | $5.47M |
| Q2 2025 | 65 | $27.7M |
| Q1 2025 | 67 | $22.9M |
| Q4 2024 | 80 | $67.0M |
| Q3 2024 | 81 | $144.1M |
| Q2 2024 | 76 | $150.0M |
| Q1 2024 | 80 | $256.1M |
| Q4 2023 | 79 | $113.9M |
| Q3 2023 | 79 | $115.7M |
| Q2 2023 | 89 | $133.9M |
| Q1 2023 | 65 | $126.4M |
| Q4 2022 | 69 | $166.3M |
| Q3 2022 | 68 | $122.4M |
| Q2 2022 | 77 | $195.1M |
| Q1 2022 | 80 | $229.2M |
| Q4 2021 | 85 | $425.9M |
| Q3 2021 | 92 | $577.3M |
| Q2 2021 | 82 | $475.7M |
| Q1 2021 | 84 | $623.8M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Adaptimmune Therapeutics PLC; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Josh Arnold Investment Consultant, LLC | 20,000 | $37.8K | 0.03% | +20,000 | New |
| Empirical Finance, LLC | 800,000 | $20.8K | 0.00% | 00.0% | Unchanged |
| Rathbone Brothers plc | 432,818 | $11.3K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 353,836 | $9.20K | 0.00% | +251,335+245.2% | Added |
| Simplex Trading, LLC | 18,610 | $483 | 0.00% | +6,186+49.8% | Added |
| Rhumbline Advisers | 3,661 | $95 | 0.00% | −2,082−36.3% | Reduced |
| Barclays PLC | 2,532 | $66 | 0.00% | −2−0.1% | Reduced |
| Acadian Asset Management LLC | 17,167 | $0 | 0.00% | −1,467,986−98.8% | Reduced |
| X-Square Capital, LLC | 11,359 | $0 | 0.00% | −214−1.8% | Reduced |
| TD Waterhouse Canada Inc. | 14 | $0 | 0.00% | 00.0% | Unchanged |
| Long Focus Capital Management, LLC | 0 | $0 | 0.00% | −18,577,821−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −6,667,358−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −4,054,089−100.0% | Sold out |
| Morgan Stanley | 0 | $0 | 0.00% | −3,666,061−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −2,805,345−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −1,319,669−100.0% | Sold out |
| National Asset Management, Inc. | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| FMR LLC | 0 | $0 | 0.00% | −340,409−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −308,065−100.0% | Sold out |
| Lumbard & Kellner, LLC | 0 | $0 | 0.00% | −114,264−100.0% | Sold out |
| Lakeridge Wealth Management LLC | 0 | $0 | 0.00% | −110,400−100.0% | Sold out |
| State of Tennessee, Treasury Department | 0 | $0 | 0.00% | −73,376−100.0% | Sold out |
| Captrust Financial Advisors | 0 | $0 | 0.00% | −68,723−100.0% | Sold out |
| Geode Capital Management, LLC | 0 | $0 | 0.00% | −67,032−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −61,730−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −54,824−100.0% | Sold out |
| State of New Jersey Common Pension Fund D | 0 | $0 | 0.00% | −54,718−100.0% | Sold out |
| Federation des caisses Desjardins du Quebec | 0 | $0 | 0.00% | −53,186−100.0% | Sold out |
| Northern Trust Corp | 0 | $0 | 0.00% | −48,584−100.0% | Sold out |
| Wealth Enhancement Advisory Services, LLC | 0 | $0 | 0.00% | −40,816−100.0% | Sold out |
| BlackRock, Inc. | 0 | $0 | 0.00% | −38,296−100.0% | Sold out |
| Columbia Advisory Partners LLC | 0 | $0 | 0.00% | −36,730−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −27,497−100.0% | Sold out |
| Simon Quick Advisors, LLC | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −25,261−100.0% | Sold out |
| Prosperity Wealth Management, Inc. | 0 | $0 | 0.00% | −19,227−100.0% | Sold out |
| StoneX Group Inc. | 0 | $0 | 0.00% | −15,040−100.0% | Sold out |
| Traynor Capital Management, Inc. | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −12,320−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −12,166−100.0% | Sold out |
| IFG Advisory, LLC | 0 | $0 | 0.00% | −11,725−100.0% | Sold out |
| Kornitzer Capital Management Inc | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Wells Fargo & Company | 0 | $0 | 0.00% | −2,700−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −2,679−100.0% | Sold out |
| Advisor Group Holdings, Inc. | 0 | $0 | 0.00% | −2,058−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −700−100.0% | Sold out |
| Bryn Mawr Trust Co | 0 | $0 | 0.00% | −604−100.0% | Sold out |
| HighMark Wealth Management LLC | 0 | $0 | 0.00% | −287−100.0% | Sold out |
| Parallel Advisors, LLC | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| BNP Paribas Arbitrage, SA | 0 | $0 | 0.00% | −213−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −125−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Investors Research Corp | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Koesten, Hirschmann & Crabtree, INC. | 0 | $0 | 0.00% | −47−100.0% | Sold out |
| SBI Securities Co., Ltd. | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Danske Bank A/S | 0 | $0 | 0.00% | −1−100.0% | Sold out |