ISPECIMEN INC

Ticker: ISPC CUSIP: 45032V207 Class: COM NEW

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q4 2025

Shares 6,664 Value ($000) $2 Avg Close $0.63 Range $0.26 - $1.32

Q3 2025

Shares 2,357 Value ($000) $3 Avg Close $1.17 Range $0.64 - $3.18

Q2 2025

Shares 6,186 Value ($000) $6 Avg Close $1.16 Range $0.85 - $1.75

Q1 2025

Shares 2,981 Value ($000) $3 Avg Close $1.90 Range $1.03 - $3.38

Q4 2024

Shares 131 Value ($000) $0 Avg Close $4.17 Range $2.62 - $8.30

Q3 2024

Shares 1,168 Value ($000) $5 Avg Close $5.43 Range $3.41 - $11.80

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	6,664	$2	$0.63	$0.26 - $1.32
Q3 2025	2,357	$3	$1.17	$0.64 - $3.18
Q2 2025	6,186	$6	$1.16	$0.85 - $1.75
Q1 2025	2,981	$3	$1.90	$1.03 - $3.38
Q4 2024	131	$0	$4.17	$2.62 - $8.30
Q3 2024	1,168	$5	$5.43	$3.41 - $11.80