ZeroStack Corp. (ZSTK) — Institutional Holders, Q2 2026
11 institutional investment managers reported a ZSTK position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $183.8K. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
ZSTK in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- Tower Research Capital (TRC)New · +1,730 sh+$5.2K
- BARCLAYS PLCNew · +3 sh+$9.00
- CITIGROUPNew · +1 sh+$3.00
Biggest sellers
- GEODE CAPITAL MANAGEMENTTrimmed · -4,327 sh-$13.0K
- UBS Group AGTrimmed · -226 sh-$678.00
- MORGAN STANLEYTrimmed · -166 sh-$498.00
- Sound Income StrategiesSold out · -12 sh-$36.00
- Bernard Wealth ManagementSold out · -12 sh-$36.00
ZSTK 13F holders ranked 1–11 of 11
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT#1 · 25,440 sh | 25,440 | $76.3K | 0.00% | 0.0% |
| 2 | GEODE CAPITAL MANAGEMENT#2 · 20,994 sh | 20,994 | $63.0K | 0.00% | -17.1% |
| 3 | VANGUARD FIDUCIARY#3 · 12,648 sh | 12,648 | $37.9K | 0.00% | 0.0% |
| 4 | Tower Research Capital (TRC)#4 · 1,730 sh | 1,730 | $5.2K | <0.01% | New |
| 5 | UBS Group AG#5 · 440 sh | 440 | $1.3K | 0.00% | -33.9% |
| 6 | OSAIC#6 · 12 sh | 12 | $36.00 | 0.00% | 0.0% |
| 7 | MORGAN STANLEY#7 · 7 sh | 7 | $21.00 | 0.00% | -96.0% |
| 8 | BARCLAYS PLC#8 · 3 sh | 3 | $9.00 | 0.00% | New |
| 9 | Key FInancial#9 · 1 sh | 1 | $3.00 | 0.00% | 0.0% |
| 10 | CITIGROUP#10 · 1 sh | 1 | $3.00 | 0.00% | New |
| 11 | ROYAL BANK OF CANADA#11 · 12 sh | 12 | $0.00 | 0.00% | 0.0% |
Funds that sold out of ZSTK in Q2 2026 (2)
Held ZSTK at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Bernard Wealth Management12 sh | 12 | $75.00 |
| Sound Income Strategies12 sh | 12 | $72.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.