ZeroStack Corp.

ZSTK

Exchange: Nasdaq
Industry: Finance Services
SEC CIK: 0001790169

SEC filings (opens in a new tab)

In the last 90 days, ZeroStack Corp. insiders filed 1 open-market purchase and 1 sale; 11 institutions reported holding it in 13F filings for Q2 2026, worth $183.8K in total; no superinvestor holds it.

Q2 2022 vs. Q1 2022

How the institutions holding ZeroStack Corp. changed between Q1 2022 and Q2 2022.

All holders in Q2 2022 All holders in Q1 2022

13F holders of ZSTK: Q1 2022 compared with Q2 2022
Measure	Q1 2022	Q2 2022	Change
Holders	28	39	+11
Shares	1.86M	4.34M	+2.48M (+133.0%)
Value	$3.64M	$2.65M	−$991.7K (−27.2%)

New holders (17)

Institutions that held ZeroStack Corp. at the end of Q2 2022 but not at the end of Q1 2022.

Institutions new to ZSTK in Q2 2022
Institution	Shares	Value	% of portfolio
Highbridge Capital Management LLC	825,000	$503.0K	0.01%
Millennium Management LLC	425,909	$260.0K	0.00%
Citadel Advisors LLC	346,923	$212.0K	0.00%
Two Sigma Investments, LP	60,618	$37.0K	0.00%
Wedbush Securities Inc	25,000	$15.0K	0.00%
Susquehanna International Group, LLP	14,598	$9.00K	0.00%
Bank of Montreal	11,565	$8.00K	0.00%
Engineers Gate Manager LP	12,687	$8.00K	0.00%
Creative Planning	11,249	$7.00K	0.00%
Advisors Management Group Inc	10,000	$6.00K	0.00%
Keystone Financial Group	10,000	$6.00K	0.00%
Detalus Advisors, LLC	10,000	$6.00K	0.00%
Morgan Stanley	7,944	$5.00K	0.00%
Castle Wealth Management LLC	2,500	$2.00K	0.00%
Citigroup Inc	1,435	$1.00K	0.00%
Key Financial Inc	1,500	$1.00K	0.00%
Glen Eagle Advisors, LLC	696	$425	0.00%

Sold out (6)

Institutions that held ZeroStack Corp. at the end of Q1 2022 and filed for Q2 2022 without it.

Institutions that sold out of ZSTK in Q2 2022
Institution	Shares, Q1 2022	Value, Q1 2022
Flow Traders U.S. LLC	13,508	$26.0K
Financial Consulate, Inc	12,923	$25.0K
Tower Research Capital LLC (TRC)	10,142	$20.0K
Fortitude Advisory Group L.L.C.	5,133	$10.0K
Captrust Financial Advisors	238	$0
Gemmer Asset Management LLC	300	$0