1stdibs.Com, Inc.

DIBS·NASDAQ·$4.70Share Price as of 11/2·$166MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/05/26 10-QQ1 ended 03/31/2605/08/26 10-KFY 202502/27/26 10-QQ3 ended 09/30/2511/07/25 10-QQ2 ended 06/30/2508/07/25

Disclosures

8-KCurrent report09/02/26 8-KCurrent report08/05/26 8-KCurrent report05/12/26 8-KCurrent report05/11/26 8-KCurrent report05/08/26

Prospectuses and Registrations

S-8Registration of securities for employees02/27/26 S-8Registration of securities for employees03/03/25 S-8Registration of securities for employees02/29/24 S-8Registration of securities for employees03/03/23 S-8Registration of securities for employees03/03/22

Proxies

DEFA14AAdditional proxy materials03/27/26 DEF 14ADefinitive proxy03/26/26 DEFR14ADefinitive proxy (revised)04/30/25 DEFA14AAdditional proxy materials03/27/25 DEF 14ADefinitive proxy03/26/25

Ownership

SC 13D/ABeneficial ownership (amended)10/19/26 Form 4Insider transaction09/10/26 Form 4Insider transaction09/10/26 Form 4Insider transaction09/10/26 SC 13G/ABeneficial ownership (amended)08/14/26

Other

EFFECTRequest for effectiveness06/09/21 CORRESPCorrespondence with the SEC06/07/21 CORRESPCorrespondence with the SEC06/07/21 CERTCEO/CFO certification06/04/21 8-A12B8-A12B06/02/21