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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, Q2 2026

Institutional positions in ZeroStack Corp. as of Jun 30, 2026. 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
11
+1 vs. Q1 2026
Shares held
61.3K
−3.01K (−4.7%) vs. Q1 2026
Total value
$183.8K
−$213.5K (−53.7%) vs. Q1 2026
New holders
3
0 more added
Sold out
2
3 more reduced

Compare with Q1 2026: 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 holdersQ2 2026: 11 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 0 institutionsQ2 2025: 0 institutionsQ3 2025: 0 institutionsQ4 2025: 0 institutionsQ1 2026: 10 institutionsQ2 2026: 11 institutions
Value heldQ2 2026: $183.8K
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $0Q2 2025: $0Q3 2025: $0Q4 2025: $0Q1 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 20250$0
Q3 20250$0
Q2 20250$0
Q1 20250$0
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding ZeroStack Corp.; share changes are against Q1 2026.

Institutions holding ZSTK in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Capital Management LLC25,440$76.3K0.00%00.0%Unchanged
Geode Capital Management, LLC20,994$63.0K0.00%−4,327−17.1%Reduced
Vanguard Fiduciary Trust Co12,648$37.9K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)1,730$5.19K0.00%+1,730New
UBS Group AG440$1.32K0.00%−226−33.9%Reduced
Advisor Group Holdings, Inc.12$360.00%00.0%Unchanged
Morgan Stanley7$210.00%−166−96.0%Reduced
Barclays PLC3$90.00%+3New
Key Financial Inc1$30.00%00.0%Unchanged
Citigroup Inc1$30.00%+1New
Royal Bank of Canada12$00.00%00.0%Unchanged
Bernard Wealth Management Corp.0$00.00%−12−100.0%Sold out
Sound Income Strategies, LLC0$00.00%−12−100.0%Sold out