1STDIBS COM INC

Ticker: DIBS CUSIP: 320551104 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,191 Value ($000) $7 Avg Close $4.50 Range $2.52 - $6.63

Q4 2023

Shares 59 Value ($000) $0 Avg Close $4.22 Range $3.52 - $5.02

Q3 2023

Shares 51 Value ($000) $0 Avg Close $3.99 Range $3.54 - $4.60

Q1 2023

Shares 103 Value ($000) $0 Avg Close $5.08 Range $3.61 - $6.63

Q4 2022

Shares 31,410 Value ($000) $0 Avg Close $6.03 Range $4.84 - $7.47

Q2 2022

Shares 199 Value ($000) $1 Avg Close $6.58 Range $4.77 - $9.04

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,191	$7	$4.50	$2.52 - $6.63
Q4 2023	59	$0	$4.22	$3.52 - $5.02
Q3 2023	51	$0	$3.99	$3.54 - $4.60
Q1 2023	103	$0	$5.08	$3.61 - $6.63
Q4 2022	31,410	$0	$6.03	$4.84 - $7.47
Q2 2022	199	$1	$6.58	$4.77 - $9.04