ISPC · iSpecimen Inc.
Market Cap
$3.88M
Shares
2.52M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 8
Total Value: $172,181
Total Shares: 64,975
Institutional Ownership Trend
21 quarters
Holder Concentration
Across 8 13F filers · Δ vs Mar 31, 2026Top Holder
49.3%
−9.6 pts
Top 5
99.9%
+5.7 pts
Top 10
100.0%
+0.0 pts
HHI
4,002
Highly concentrated+187
Quarterly Activity
vs Mar 31, 2026
New
2
Increased
4
Decreased
0
Sold Out
6
Unchanged
2
Holder count:
-4
Institutional value:
+106.3%
Shares held:
-87.8%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega UBS Group AG | +30,693 | 32,037 | |
| Mega JANE STREET GROUP, LLC | +23,023 | 24,414 | |
| Mid Tower Research Capital LLC (TRC) | +53 | 219 | |
| Mid SBI Securities Co., Ltd. | +1 | 1 |
Top Sellers
vs Mar 31, 2026No qualifying movers this quarter.
Top New Positions
vs Mar 31, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mid IFP Advisors, Inc | 8,200 | $21,730 | |
| Small Caitong International Asset Management Co., Ltd | 2 | $5 |
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega GEODE CAPITAL MANAGEMENT, LLC | 7,827 | $49,155 | |
| Mega CITADEL ADVISORS LLC | 1,262 | $7,923 | |
| Mega VANGUARD FIDUCIARY TRUST CO | 704 | $4,422 | |
| Small StoneX Group Inc. | 493 | $3,094 | |
| Small GILL CAPITAL PARTNERS, LLC | 0 | $2 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega UBS Group AG | $84,898 | 49.31% | 32,037 | Shares | 2026-08-13 | |
| Mega JANE STREET GROUP, LLC | $64,696 | 37.57% | 24,414 | Shares | 2026-08-14 | |
| Mid IFP Advisors, Inc | $21,730 | 12.62% | 8,200 | Shares | 2026-07-20 | |
| Mid Tower Research Capital LLC (TRC) | $580 | 0.34% | 219 | Shares | 2026-08-11 | |
| Mega BlackRock, Inc. | $188 | 0.11% | 71 | Shares | 2026-08-07 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $82 | 0.05% | 31 | Shares | 2026-08-13 | |
| Small Caitong International Asset Management Co., Ltd | $5 | 0.00% | 2 | Shares | 2026-08-05 | |
| Mid SBI Securities Co., Ltd. Broker-Dealer | $2 | 0.00% | 1 | Shares | 2026-07-23 |