ISPECIMEN INC

Ticker: ISPC CUSIP: 45032V207 Class: COM NEW

Holders for Q4 2025 Position Changes for Q4 2025

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

New Positions (3)

SUSQUEHANNA INTERNATIONAL GROUP, LLP
Value ($000) $4 Shares 15,063
Jump Financial, LLC
Value ($000) $3 Shares 10,473
UBS Group AG
Value ($000) $2 Shares 6,445

Increased Positions (2)

Tower Research Capital LLC (TRC)
Value ($000) $2 (-43.0%) Shares 6,664 (+182.7%)
BANK OF AMERICA CORP /DE/
Value ($000) $0 (-62.1%) Shares 83 (+84.4%)

Decreased Positions (1)

JANE STREET GROUP, LLC
Value ($000) $4 (-86.0%) Shares 14,093 (-30.4%)

Exited Positions (4)

Scientech Research LLC
Value ($000) $38 Shares 29,488
RENAISSANCE TECHNOLOGIES LLC
Value ($000) $198 Shares 153,457
Virtu Financial LLC
Value ($000) $0 Shares 63,257
FMR LLC
Value ($000) $0 Shares 300