Lyell Immunopharma, Inc.

LYEL·NASDAQ·$16.37Share Price as of 11/2·$382MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/06/26 10-QQ1 ended 03/31/2605/06/26 10-KFY 202503/12/26 10-QQ3 ended 09/30/2511/12/25 10-QQ2 ended 06/30/2508/12/25

Disclosures

8-KCurrent report09/10/26 8-KCurrent report08/06/26 8-KCurrent report06/15/26 8-KCurrent report05/06/26 8-KCurrent report03/12/26

Prospectuses and Registrations

S-3Shelf registration07/13/26 S-3Shelf registration04/03/26 S-8Registration of securities for employees03/12/26 424B5Prospectus supplement12/18/25 S-3Shelf registration12/05/25

Proxies

DEF 14ADefinitive proxy04/24/26 DEFA14AAdditional proxy materials04/24/26 DEF 14ADefinitive proxy04/21/25 PRE 14APreliminary proxy04/10/25 DEF 14ADefinitive proxy04/22/24

Ownership

Form 4Insider transaction10/13/26 Form 3Initial insider ownership09/10/26 Form 4Insider transaction09/10/26 Form 4Insider transaction09/10/26 Form 4Insider transaction08/25/26

Other

EFFECTRequest for effectiveness07/21/26 CORRESPCorrespondence with the SEC07/17/26 UPLOADLetter from the SEC07/16/26 ARSAnnual report to shareholders04/24/26 EFFECTRequest for effectiveness04/14/26