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ZeroStack Corp.

ZSTK
Exchange
Nasdaq
Industry
Finance Services
SEC CIK
0001790169

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.

Q4 2021 vs. Q3 2021

How the institutions holding ZeroStack Corp. changed between Q3 2021 and Q4 2021.

All holders in Q4 2021All holders in Q3 2021

13F holders of ZSTK: Q3 2021 compared with Q4 2021
MeasureQ3 2021Q4 2021Change
Holders2535+10
Shares1.15M4.27M+3.13M (+273.0%)
Value$6.47M$7.60M+$1.13M (+17.5%)

New holders (14)

Institutions that held ZeroStack Corp. at the end of Q4 2021 but not at the end of Q3 2021.

Institutions new to ZSTK in Q4 2021
InstitutionSharesValue% of portfolio
Sabby Management, LLC1,482,242$2.64M0.66%
Highbridge Capital Management LLC825,000$1.47M0.04%
Renaissance Technologies LLC262,354$467.0K0.00%
CVI Holdings, LLC205,502$366.0K0.02%
Two Sigma Investments, LP123,652$220.0K0.00%
Engineers Gate Manager LP28,747$51.0K0.00%
Wedbush Securities Inc25,000$45.0K0.00%
Two Sigma Securities, LLC16,060$29.0K0.01%
Financial Consulate, Inc16,400$29.0K0.01%
360 Financial, Inc.13,162$23.0K0.01%
Keystone Financial Group10,000$18.0K0.00%
Fortitude Advisory Group L.L.C.4,006$7.00K0.00%
Beaird Harris Wealth Management, LLC2,300$4.00K0.00%
Allworth Financial LP1,200$2.00K0.00%

Sold out (4)

Institutions that held ZeroStack Corp. at the end of Q3 2021 and filed for Q4 2021 without it.

Institutions that sold out of ZSTK in Q4 2021
InstitutionShares, Q3 2021Value, Q3 2021
Millennium Management LLC23,014$130.0K
Verition Fund Management LLC16,210$92.0K
Qube Research & Technologies Ltd14,338$81.0K
Tradition Wealth Management, LLC450$3.00K