iSpecimen Inc.
ISPC- Exchange
- Nasdaq
- Industry
- Services-Commercial Physical & Biological Research
- SEC CIK
- 0001558569
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.
Q1 2026 vs. Q4 2025
How the institutions holding iSpecimen Inc. changed between Q4 2025 and Q1 2026.
All holders in Q1 2026All holders in Q4 2025
| Measure | Q4 2025 | Of which not filed for Q1 2026 | Q1 2026 | Change |
|---|---|---|---|---|
| Holders | 11 | 1 | 12 | +2 |
| Shares | 126.7K | 29.4K | 531.6K | +434.3K (+446.6%) |
| Value | $32.9K | $7.65K | $83.5K | +$58.2K (+230.0%) |
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (5)
Institutions that held iSpecimen Inc. at the end of Q1 2026 but not at the end of Q4 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Citadel Advisors LLC | 50,471 | $7.92K | 0.00% |
| Vanguard Fiduciary Trust Co | 28,170 | $4.42K | 0.00% |
| StoneX Group Inc. | 19,710 | $3.09K | 0.00% |
| Vanguard Capital Management LLC | 1,237 | $194 | 0.00% |
| Gill Capital Partners, LLC | 15 | $2 | 0.00% |
Sold out (3)
Institutions that held iSpecimen Inc. at the end of Q4 2025 and filed for Q1 2026 without it.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Susquehanna International Group, LLP | 15,063 | $3.92K |
| Jump Financial, LLC | 10,473 | $2.72K |
| Bank of America Corp | 83 | $22 |
Not filed for Q1 2026 yet (1)
Institutions that held iSpecimen Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Vanguard Group Inc | 29,407 | $7.65K |