iSpecimen Inc.

ISPC

Exchange: Nasdaq
Industry: Services-Commercial Physical & Biological Research
SEC CIK: 0001558569

SEC filings (opens in a new tab)

No open-market purchases or sales by iSpecimen Inc. insiders were filed in the last 90 days; 8 institutions reported holding it in 13F filings for Q2 2026, worth $152.0K in total; no superinvestor holds it.

Q2 2025 vs. Q1 2025

How the institutions holding iSpecimen Inc. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025 All holders in Q1 2025

13F holders of ISPC: Q1 2025 compared with Q2 2025
Measure	Q1 2025	Q2 2025	Change
Holders	8	9	+1
Shares	60.1K	67.4K	+7.37K (+12.3%)
Value	$63.7K	$66.1K	+$2.41K (+3.8%)

New holders (2)

Institutions that held iSpecimen Inc. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to ISPC in Q2 2025
Institution	Shares	Value	% of portfolio
Citadel Advisors LLC	19,464	$19.1K	0.00%
XTX Topco Ltd	10,084	$9.88K	0.00%

Sold out (1)

Institutions that held iSpecimen Inc. at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of ISPC in Q2 2025
Institution	Shares, Q1 2025	Value, Q1 2025
Bridgeway Capital Management, LLC	21,800	$23.1K