William C Bertrand Jr Adaptimmune Therapeutics PLC (ADAP) insider trading activity

William C Bertrand Jr is Chief Operating Officer of Adaptimmune Therapeutics PLC. Currently has a direct ownership of 986,352 shares of ADAP, which is worth approximately $39,454. The most recent transaction as insider was on Aug 28, 2025, when has been sold 207,000 shares (Ordinary Shares with a nominal value of GBP0.001 per share) at a price of $0.01 per share, resulting in proceeds of $2,070. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 986K

13033.85% 3M change

4782.69% 12M change

Total Value Held $39,454

William C Bertrand Jr Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Aug 28 2025	SELL Open market or private sale	$2,070 $0.01 p/Share	207,000 Reduced 17.35%	986,352 Ordinary Shares with a...
Jan 17 2025	SELL Open market or private sale	$3,238 $0.58 p/Share	5,584 Reduced 42.65%	7,510 American Depositary Sh...
Jan 15 2025	SELL Open market or private sale	$5,587 $0.57 p/Share	9,803 Reduced 41.61%	13,756 American Depositary Sh...
Jan 13 2025	SELL Open market or private sale	$5,746 $0.59 p/Share	9,739 Reduced 56.09%	7,623 American Depositary Sh...
Jan 17 2024	SELL Open market or private sale	$12,668 $0.67 p/Share	18,908 Reduced 48.35%	20,201 American Depositary Sh...
Jan 16 2024	SELL Open market or private sale	$3,697 $0.79 p/Share	4,681 Reduced 39.99%	7,023 American Depositary Sh...
Jan 12 2024	SELL Open market or private sale	$4,437 $0.85 p/Share	5,220 Reduced 39.87%	7,874 American Depositary Sh...
Jan 11 2024	SELL Open market or private sale	$3,367 $0.84 p/Share	4,009 Reduced 39.64%	6,104 American Depositary Sh...
Jan 17 2023	SELL Open market or private sale	$8,258 $1.86 p/Share	4,440 Reduced 37.94%	7,264 American Depositary Sh...
Jan 12 2023	SELL Open market or private sale	$8,503 $1.71 p/Share	4,973 Reduced 37.98%	8,121 American Depositary Sh...
Jan 11 2023	SELL Open market or private sale	$6,725 $1.75 p/Share	3,843 Reduced 38.0%	6,270 American Depositary Sh...
Jan 04 2023	SELL Open market or private sale	$6,056 $1.69 p/Share	3,584 Reduced 38.27%	5,781 American Depositary Sh...
Jan 18 2022	SELL Open market or private sale	$13,934 $3.19 p/Share	4,368 Reduced 37.32%	7,336 American Depositary Sh...
Jan 12 2022	SELL Open market or private sale	$7,958 $3.54 p/Share	2,248 Reduced 37.45%	3,754 American Depositary Sh...
Jan 11 2022	SELL Open market or private sale	$13,421 $3.56 p/Share	3,770 Reduced 37.28%	6,343 American Depositary Sh...
Jan 04 2022	SELL Open market or private sale	$14,169 $4.06 p/Share	3,490 Reduced 37.27%	5,873 American Depositary Sh...
Jul 02 2021	SELL Open market or private sale	$18,638 $4.26 p/Share	4,375 Reduced 37.38%	7,329 American Depositary Sh...
Jan 12 2021	SELL Open market or private sale	$13,739 $6.15 p/Share	2,234 Reduced 37.22%	3,768 American Depositary Sh...
Jan 04 2021	SELL Open market or private sale	$18,650 $5.33 p/Share	3,499 Reduced 37.37%	5,864 American Depositary Sh...
Dec 14 2020	BUY Open market or private purchase	$142,830 $0.69 p/Share	207,000 Added 42.09%	284,808 Ordinary Shares with a...

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