Syndax Pharmaceuticals Inc.

SNDX·NASDAQ·$19.90Share Price as of 11/2·$2BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2611/02/26 10-QQ2 ended 06/30/2608/04/26 10-QQ1 ended 03/31/2604/30/26 10-KFY 202502/26/26 10-QQ3 ended 09/30/2511/03/25

Disclosures

8-KResults of Operations; Change in Directors or Officers11/02/26 8-KResults of Operations08/04/26 8-KOther Events07/14/26 8-KEntry into Material Agreement; Creation of Direct Financial Obligation; Unregistered Sales of Equity06/10/26 8-KChange in Directors or Officers; Shareholder Vote Results06/10/26

Prospectuses and Registrations

S-8Registration of securities for employees02/26/26 S-8Registration of securities for employees03/04/25 S-3ASRAutomatic shelf registration02/27/24 S-8Registration of securities for employees02/27/24 424B5Prospectus supplement12/15/23

Proxies

DEFA14AAdditional proxy materials06/04/26 DEF 14ADefinitive proxy04/30/26 DEFA14AAdditional proxy materials04/30/26 DEF 14ADefinitive proxy04/01/25 DEFA14AAdditional proxy materials04/01/25

Ownership

Form 4Insider transaction10/30/26 144Proposed sale of securities10/29/26 SC 13GBeneficial ownership08/07/26 Form 4Insider transaction07/09/26 144Proposed sale of securities07/08/26

Other

ARSAnnual report to shareholders04/30/26 ARSAnnual report to shareholders04/01/25 ARSAnnual report to shareholders04/02/24 UPLOADLetter from the SEC12/07/23 CORRESPCorrespondence with the SEC11/28/23