Revenue
2020
2021
2022
2023
2024
2025
ZeroStack Corp. (ZSTK)
Price$4.30Cached quote
Net income
2020
2021
2022
2023
2024
2025
Free cash flow
2020
2021
2022
2023
2024
2025
Total cash / debt
CashTotal debt
2020
2021
2022
2023
2024
2025
Financial statements
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | |
|---|---|---|---|---|---|---|
| Revenue | $35.7M | $35.9M | $76.1M | $33.4M | $9.0M | $106,000 |
| Gross profit | $1.6M | $2.2M | $17.7M | $13.3M | $2.4M | $71,000 |
| Gross margin | 4.62% | 6.12% | 23.32% | 39.67% | 27.00% | 66.98% |
| Research & development | — | $418,000 | $62,000 | $388,000 | $132,000 | $78,000 |
| Operating expenses | $156.3M | $11.1M | $68.1M | $60.5M | $21.4M | — |
| Operating income | −$154.7M | −$8.9M | −$50.4M | −$47.2M | −$19.0M | — |
| Operating margin | −433.49% | −24.88% | −66.19% | −141.38% | −211.61% | — |
| EBITDA | −$154.1M | −$8.2M | −$47.9M | −$44.6M | −$18.5M | — |
| EBITDA margin | −431.86% | −22.74% | −62.93% | −133.50% | −206.04% | — |
| Net income | −$119.7M | −$15.9M | −$57.0M | −$52.4M | −$21.4M | −$14.3M |
| Net profit margin | −335.61% | −44.35% | −74.98% | −156.93% | −237.87% | −13,522.64% |
| Basic EPSper basic share | -$43.49 | -$50.02 | -$7.75 | -$13.68 | -$0.48 | -$0.47 |
| Diluted EPSper diluted share | -$43.49 | -$50.02 | -$7.75 | -$13.68 | — | — |
Owners
Reported shareholders
Reported holdings Number of shares
View holders
| Holder | Shares held |
|---|---|
Starke Clifford | 2.25M |
DORF SAMMY | 250K |
WOO EDWARD | 136.72K |
VANGUARD CAPITAL MANAGEMENT LLC | 25.44K |
Wolkin Harold | 25K |
GEODE CAPITAL MANAGEMENT, LLC | 20.99K |
VANGUARD FIDUCIARY TRUST CO | 12.65K |
Tower Research Capital LLC (TRC) | 1.73K |
UBS Group AG | 440 |
ROYAL BANK OF CANADA | 12 |
OSAIC HOLDINGS, INC. | 12 |
MORGAN STANLEY | 7 |
BARCLAYS PLC | 3 |
CITIGROUP INC | 1 |
Key Financial Inc | 1 |
Bars compare reported share counts. A matching total for this share class and reporting period is unavailable, so percentages are not shown.
Source: SEC Form 4 ↗Updated Sep 29, 2026 · Quarterly data
Insider buys & sells
| Transaction | Insider | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| Oct 9, 2025Form 4 | Reis-Faria DanielCEO | BuyPre-Funded Token Warrants · derivative | 5.95M | $25.19 | $150.00M | 5.95M |
| Sep 13, 2024Form 4 | Starke CliffordCEO | BuyCommon Shares | 6.8K | $0.95 | $6.5K | 6.8K |
| Sep 6, 2024Form 4 | Wolkin HaroldDirector | BuyCommon Shares | 15.0K | $0.98 | $14.7K | 25.0K |
| Sep 6, 2024Form 4 | Wolkin HaroldDirector | BuyCommon Shares | 5.0K | $0.95 | $4.8K | 10.0K |
| Sep 6, 2024Form 4 | Wolkin HaroldDirector | BuyCommon Shares | 5.0K | $0.96 | $4.8K | 5.0K |