LEE GARY K.

PrivateCIK: 1907345
Location

SOUTH SAN FRANCISCO, CA

LEE GARY K. (Chief Scientific Officer) sold 0.8% of their position (147.00 shares) of LYELL IMMUNOPHARMA, INC. on the open market

Open‑market sale worth $3.4K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderLEE GARY K.CIK 1907345
IssuerLYELL IMMUNOPHARMA, INC.CIK 1806952
Officer· Chief Scientific Officer
Since Jan 2022
+53.85K
Net shares
Net buyer
$3.4K
Total sold
1
Open market trades
0B · 1S
3
Total transactions
54K acquired · 147.00 disposed
Non-Derivative Transactions2

Common Stock

Direct
A · Award

Shares

+4K

Price / share

Trade value

% of position

27.1%
2/9/2026
14.76K18.76K

Common Stock

Direct
S · Sale

Shares

147.00

Price / share

$23.12

Trade value

$3.40K

% of position

0.8%
2/10/2026
18.76K18.61K
Total

Net shares

+3.85K

Net value

-$3.40K

Derivative Transactions1

Option (right to buy)

Direct
A · Award
Converts to

Common Stock

50K shares

Shares

+50K

Strike price

23.71

Held after

50K

Exercisable

2/10/2026
LEE GARY K. — Insider Transaction (Form 4) Filed Feb 11, 2026 | Finecho