ISPC iSpecimen Inc

NASDAQ
$1.54

iSpecimen Inc (ISPC) Institutional Ownership

What the institutions did with ISPC last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
14
filed both this quarter and last
Managers holding
8
-4 on the quarter
Buyers
2
2 opened new
Sellers
12
6 sold out entirely
Buyer share
14.3%
of managers who traded it
Breadth
-71.4
net buyers, as a share of those trading

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
UBS Group AG 32.0K 49.3%
JANE STREET GROUP, LLC 24.4K 37.6%
IFP Advisors, Inc 8.2K 12.6%
Tower Research Capital LLC (TRC) 219 0.3%
BlackRock, Inc. 71 0.1%
VANGUARD CAPITAL MANAGEMENT LLC 31 0.0%
Caitong International Asset Management Co., Ltd 2 0.0%
SBI Securities Co., Ltd. 1 0.0%

Largest changes

Manager Action Previous Current Change
GEODE CAPITAL MANAGEMENT, LLC Sold Out 313.1K 0 -313.1K
CITADEL ADVISORS LLC Sold Out 50.5K 0 -50.5K
JANE STREET GROUP, LLC Reduced 55.6K 24.4K -31.2K
VANGUARD FIDUCIARY TRUST CO Sold Out 28.2K 0 -28.2K
UBS Group AG Reduced 53.7K 32.0K -21.7K
StoneX Group Inc. Sold Out 19.7K 0 -19.7K
IFP Advisors, Inc New 0 8.2K +8.2K
Tower Research Capital LLC (TRC) Reduced 6.7K 219 -6.4K
BlackRock, Inc. Reduced 2.8K 71 -2.8K
VANGUARD CAPITAL MANAGEMENT LLC Reduced 1.2K 31 -1.2K
SBI Securities Co., Ltd. Reduced 19 1 -18
GILL CAPITAL PARTNERS, LLC Sold Out 15 0 -15
Caitong International Asset Management Co., Ltd New 0 2 +2
Sachetta, LLC Sold Out 2 0 -2

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.