Ticker · CUSIP 09073N300
Holders (tracked)
3
Combined shares
439,670
Combined value
$1.33M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 5 quarters.
SEC event timeline
3 events
- Ken Griffin (Citadel Advisors) added2026-02-17+8,900 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+306,196 shares · 2025Q413F
- +34,274 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions0
—
Added to2
- Izzy Englander (Millennium Mgmt)+306,196$928K
- Ken Griffin (Citadel Advisors)+8,900$27K
Trimmed0
—
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2024Q1 | 1 | $40K |
| 2024Q4 | 1 | $228K |
| 2025Q1 | 1 | $38K |
| 2025Q3 | 3 | $718K |
| 2025Q4 | 3 | $1.3M |
Who owns STEX
3 super-investors · 2025Q4
Tracked stake
439.7K
shares
Combined value
$1M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added3
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Izzy Englander Millennium Mgmt | 340.5K | $1M |
| 2 | Ken Griffin Citadel Advisors | 67.8K | $205K |
| 3 | Ken Griffin Citadel Advisors | 31.4K | $95K |
Recent moves
8 transactions
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