ZeroStack Corp
ZSTK
10 hedge funds and large institutions have $397K invested in ZeroStack Corp in 2026 Q1 according to their latest regulatory filings, with 4 funds opening new positions, 2 increasing their positions, 1 reducing their positions, and 2 closing their positions.
4,866% more capital invested
Capital invested by funds: $8K → $397K (+$389K)
100% more first-time investments, than exits
New positions opened: 4 | Existing positions closed: 2
100% more repeat investments, than reductions
Existing positions increased: 2 | Existing positions reduced: 1
25% more funds holding
Funds holding: 8 → 10 (+2)
2.47% more ownership
Funds ownership: 0.17% → 2.65% (+2.5%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Geode Capital Management
Boston,
Massachusetts
|
+$201K |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$3.48K |
| 3 |
SIS
Sound Income Strategies
Ft Lauderdale,
Florida
|
+$95 |
| 4 |
Osaic Holdings
Scottsdale,
Arizona
|
+$16 |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
TRCT
Tower Research Capital (TRC)
New York
|
-$5.3K |
| 2 |
Bank of America
Charlotte,
North Carolina
|
-$43 |
| 3 |
Morgan Stanley
New York
|
-$8 |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
VCM
1
Vanguard Capital Management
Malvern,
Pennsylvania
| $157K | +$202K | +25,440 | New |
|
|
2
Geode Capital Management
Boston,
Massachusetts
| $156K | +$201K | +25,321 | New |
|
|
VFT
3
Vanguard Fiduciary Trust
Malvern,
Pennsylvania
| $78.2K | +$100K | +12,648 | New |
|
|
4
UBS Group
Zurich,
Switzerland
| $4.12K | +$3.48K | +439 | +193% |
|
|
5
Morgan Stanley
New York
| $1.07K | -$8 | -1 | -0.6% |
|
|
BWM
6
Bernard Wealth Management
Royal Oak,
Michigan
| $75 | – | – | – |
|
|
7
Osaic Holdings
Scottsdale,
Arizona
| $73 | +$16 | +2 | +20% |
|
|
SIS
8
Sound Income Strategies
Ft Lauderdale,
Florida
| $72 | +$95 | +12 | New |
|
|
KFI
9
Key Financial Inc
West Chester,
Pennsylvania
| $6 | – | – | – |
|
|
TRCT
10
Tower Research Capital (TRC)
New York
| – | -$5.3K | -847 | Closed |
|
|
11
Bank of America
Charlotte,
North Carolina
| – | -$43 | -7 | Closed |
|
ZSTK Hedge Fund Activity: Q1 2026 in Review
10 of the 8,134 institutional investors tracked by Wall St. Rank reported a position in ZeroStack Corp (ZSTK) for Q1 2026, worth a combined $397K — up 4,866% from $8K a quarter earlier.
Buyers outnumbered sellers: 4 funds opened new ZSTK positions and 2 closed out — a net gain of 2 holders — while 2 added to existing stakes and 1 trimmed.
The largest buyer was Geode Capital Management, opening a new position worth an estimated $201K. The largest seller was Tower Research Capital (TRC), exiting entirely with an estimated $5.3K sold.
- 10 institutional investors held ZeroStack Corp (ZSTK) as of Q1 2026, up from 8 in Q4 2025.
- Funds reported $397K of ZeroStack Corp stock for Q1 2026, up 4,866% quarter-over-quarter.
- 4 funds opened new ZeroStack Corp positions in Q1 2026 and 2 closed out, a net change of +2 holders.
- The largest ZeroStack Corp buyer in Q1 2026 was Geode Capital Management, an estimated $201K added.
- The largest ZeroStack Corp seller in Q1 2026 was Tower Research Capital (TRC), an estimated $5.3K sold.
Based on aggregated 13F filings for Q1 2026.