SMTK Simtek Corp.

NSD
$1.82

Simtek Corp. (SMTK) Institutional Ownership

What the institutions did with SMTK 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
16
filed both this quarter and last
Managers holding
11
+1 on the quarter
Buyers
9
6 opened new
Sellers
7
5 sold out entirely
Buyer share
56.3%
of managers who traded it
Breadth
+12.5
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
JANE STREET GROUP, LLC 524.0K 35.1%
PEAK6 LLC 339.1K 22.7%
Rossby Financial, LCC 296.0K 19.8%
CITADEL ADVISORS LLC 173.1K 11.6%
Virtu Financial LLC 86.9K 5.8%
GEODE CAPITAL MANAGEMENT, LLC 43.7K 2.9%
PFG Investments, LLC 16.0K 1.1%
XTX Topco Ltd 14.5K 1.0%
Rockefeller Capital Management L.P. 1.0K 0.1%
Arax Advisory Partners 145 0.0%
UBS Group AG 84 0.0%

Largest changes

Manager Action Previous Current Change
AIGH Capital Management LLC Sold Out 895.4K 0 -895.4K
JANE STREET GROUP, LLC New 0 524.0K +524.0K
PEAK6 LLC New 0 339.1K +339.1K
CITADEL ADVISORS LLC Increased 22.4K 173.1K +150.7K
Rossby Financial, LCC Increased 236.0K 296.0K +60.0K
Financial Plan, Inc. Sold Out 60.0K 0 -60.0K
Virtu Financial LLC Increased 26.9K 86.9K +60.0K
GEODE CAPITAL MANAGEMENT, LLC New 0 43.7K +43.7K
HRT FINANCIAL LP Sold Out 39.5K 0 -39.5K
Portfolio Strategies, Inc. Sold Out 15.1K 0 -15.1K
TWO SIGMA SECURITIES, LLC Sold Out 13.3K 0 -13.3K
PFG Investments, LLC Reduced 26.5K 16.0K -10.5K
XTX Topco Ltd Reduced 23.8K 14.5K -9.3K
Rockefeller Capital Management L.P. New 0 1.0K +1.0K
Arax Advisory Partners New 0 145 +145
UBS Group AG New 0 84 +84

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.