Adaptimmune Therapeutics PLC (ADAP)
Data as of , from SEC Form 4 filings.
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About Adaptimmune Therapeutics PLC (ADAP)
The SEC lists Adaptimmune Therapeutics PLC under CIK 0001621227, in biological products (no diagnostic substances). It is grouped with Health Care companies on this site. The registration was withdrawn on 22 April 2026, so the planned offering is not going ahead in its filed form.
ADAP Form 4 activity by transaction type, last 90 days
No Form 4 activity for ADAP in the last 90 days.
ADAP insider transactions (Form 4)
74 Form 4 filings on record, the earliest from Jul 28, 2025, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Gavin Wood - Officer | Open-market sale | Ordinary Shares with a nominal value of GBP0.001 per share | 96,000 | $0.01 | $950 | |
| William C. Bertrand Jr. - Officer | Open-market sale | Ordinary Shares with a nominal value of GBP0.001 per share | 207,000 | $0.01 | $2K | |
| Open-market sale | Ordinary Shares with a nominal value of 0.001 GBP per share | 4,828,206 | $0.01 | $53K | ||
| Open-market sale | Ordinary Shares with a nominal value of 0.001 GBP per share | 14,671,794 | $0.01 | $176K | ||
| EcoR1 Capital, LLC - 10% Owner | Open-market sale | Ordinary Shares | 33,931,740 | $0.11 | $3.82M | |
| EcoR1 Capital, LLC - 10% Owner | Open-market sale | Ordinary Shares | 2,687,460 | $0.10 | $272K | |
| EcoR1 Capital, LLC - 10% Owner | Open-market sale | Ordinary Shares | 27,433,338 | $0.10 | $2.80M |
ADAP insider trading FAQ
What is the latest insider trade for ADAP?
Adaptimmune Therapeutics PLC (ADAP) has filed no insider reports in the last 90 days. The most recent on record is dated 2025-09-02. The full record for ADAP runs to 4 Form 4 filings, the earliest from 2025-07-28. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying ADAP stock?
No insider purchases of ADAP were filed in the last 90 days.
How many insiders are selling ADAP stock?
No insider sales of ADAP were filed in the last 90 days. 7 sales are on record for this company.
Where can I see ADAP SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects ADAP Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
4The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Gavin Wood view on EDGAR
- - William C. Bertrand Jr. view on EDGAR
- - Ali Behbahani view on EDGAR
- - EcoR1 Capital, LLC view on EDGAR
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Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Insider activity in Health Care
- Where ADAP's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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- The daily trading plan of ranked insider buys, on a delay, with the plan archive