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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.

13F holders, Q4 2021

Institutional positions in ZeroStack Corp. as of Dec 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
35
+10 vs. Q3 2021
Shares held
4.27M
+3.13M (+273.0%) vs. Q3 2021
Total value
$7.60M
+$1.13M (+17.5%) vs. Q3 2021
New holders
14
10 more added
Sold out
4
5 more reduced

Compare with Q3 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ZSTK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2021: 35 institutions
Q1 2021: 0 institutionsQ2 2021: 10 institutionsQ3 2021: 25 institutionsQ4 2021: 35 institutionsQ1 2022: 28 institutionsQ2 2022: 39 institutionsQ3 2022: 32 institutionsQ4 2022: 39 institutionsQ1 2023: 32 institutionsQ2 2023: 20 institutionsQ3 2023: 23 institutionsQ4 2023: 22 institutionsQ1 2024: 22 institutionsQ2 2024: 20 institutionsQ3 2024: 21 institutionsQ4 2024: 23 institutionsQ1 2025: 24 institutionsQ2 2025: 26 institutionsQ3 2025: 12 institutionsQ4 2025: 8 institutionsQ1 2026: 10 institutionsQ2 2026: 11 institutions
Value heldQ4 2021: $7.60M
Q1 2021: $0Q2 2021: $317.0KQ3 2021: $6.47MQ4 2021: $7.60MQ1 2022: $3.64MQ2 2022: $2.65MQ3 2022: $3.10MQ4 2022: $4.00MQ1 2023: $1.57MQ2 2023: $1.16MQ3 2023: $2.01MQ4 2023: $1.52MQ1 2024: $751.8KQ2 2024: $400.2KQ3 2024: $623.9KQ4 2024: $566.6KQ1 2025: $333.9KQ2 2025: $330.5KQ3 2025: $109.3KQ4 2025: $8.00KQ1 2026: $397.3KQ2 2026: $183.8K
Institutions holding ZSTK and their total value by quarter
QuarterHoldersValue
Q2 202611$183.8K
Q1 202610$397.3K
Q4 20258$8.00K
Q3 202512$109.3K
Q2 202526$330.5K
Q1 202524$333.9K
Q4 202423$566.6K
Q3 202421$623.9K
Q2 202420$400.2K
Q1 202422$751.8K
Q4 202322$1.52M
Q3 202323$2.01M
Q2 202320$1.16M
Q1 202332$1.57M
Q4 202239$4.00M
Q3 202232$3.10M
Q2 202239$2.65M
Q1 202228$3.64M
Q4 202135$7.60M
Q3 202125$6.47M
Q2 202110$317.0K
Q1 20210$0

Institutions, Q4 2021

Shares, value and share of portfolio for each institution holding ZeroStack Corp.; share changes are against Q3 2021.

Institutions holding ZSTK in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Sabby Management, LLC1,482,242$2.64M0.66%+1,482,242New
Mirae Asset Global Investments Co., Ltd.903,185$1.61M0.00%+12,021+1.3%Added
Highbridge Capital Management LLC825,000$1.47M0.04%+825,000New
Renaissance Technologies LLC262,354$467.0K0.00%+262,354New
CVI Holdings, LLC205,502$366.0K0.02%+205,502New
Two Sigma Investments, LP123,652$220.0K0.00%+123,652New
Morgan Stanley106,988$190.0K0.00%+98,189+1,115.9%Added
Vident Investment Advisory, LLC51,505$92.0K0.00%+1,987+4.0%Added
Cobblestone Capital Advisors LLC44,533$79.0K0.01%00.0%Unchanged
Virtu Financial LLC33,710$60.0K0.01%+12,200+56.7%Added
Citadel Advisors LLC30,307$54.0K0.00%+19,425+178.5%Added
Engineers Gate Manager LP28,747$51.0K0.00%+28,747New
Wedbush Securities Inc25,000$45.0K0.00%+25,000New
Geode Capital Management, LLC20,412$36.0K0.00%00.0%Unchanged
Koshinski Asset Management, Inc.18,652$33.2K0.00%−300−1.6%Reduced
Two Sigma Securities, LLC16,060$29.0K0.01%+16,060New
Financial Consulate, Inc16,400$29.0K0.01%+16,400New
Tower Research Capital LLC (TRC)15,027$27.0K0.00%+14,324+2,037.6%Added
360 Financial, Inc.13,162$23.0K0.01%+13,162New
Keystone Financial Group10,000$18.0K0.00%+10,000New
UBS Group AG6,945$13.0K0.00%+2,640+61.3%Added
Global Retirement Partners, LLC6,999$12.0K0.01%00.0%Unchanged
Advisor Group Holdings, Inc.6,500$12.0K0.00%+3,500+116.7%Added
Bank of America Corp5,521$9.00K0.00%+4,472+426.3%Added
Fortitude Advisory Group L.L.C.4,006$7.00K0.00%+4,006New
Beaird Harris Wealth Management, LLC2,300$4.00K0.00%+2,300New
Royal Bank of Canada1,260$2.00K0.00%−2,636−67.7%Reduced
Toth Financial Advisory Corp933$2.00K0.00%−466−33.3%Reduced
Tradewinds Capital Management, LLC1,315$2.00K0.00%00.0%Unchanged
Allworth Financial LP1,200$2.00K0.00%+1,200New
Focused Wealth Management, Inc666$1.00K0.00%00.0%Unchanged
Gemmer Asset Management LLC300$1.00K0.00%−400−57.1%Reduced
Nelson, Van Denburg & Campbell Wealth Management Group, LLC834$1.00K0.00%+301+56.5%Added
Proequities, Inc.160$00.00%−450−73.8%Reduced
The PNC Financial Services Group, Inc.266$00.00%00.0%Unchanged
Millennium Management LLC0$00.00%−23,014−100.0%Sold out
Verition Fund Management LLC0$00.00%−16,210−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−14,338−100.0%Sold out
Tradition Wealth Management, LLC0$00.00%−450−100.0%Sold out