Ticker · CUSIP 092915107
Holders (tracked)
8
Combined shares
2,171,778
Combined value
$4.16M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 4.
SEC event timeline
8 events
- Ken Griffin (Citadel Advisors) added2026-02-17+487,444 shares · 2025Q413F
- Two Sigma Investments added2026-02-17+67,502 shares · 2025Q413F
- +967,607 shares · 2025Q413F
- AQR Capital Management opened position2026-02-17+282,961 shares · 2025Q413F
- Renaissance Technologies added2026-02-12+48,663 shares · 2025Q413F
- T. Rowe Price opened position2025-11-14+39,200 shares · 2025Q313F
- Two Sigma Investments opened position2025-11-14+46,074 shares · 2025Q313F
- Renaissance Technologies opened position2025-11-13+85,400 shares · 2025Q313F
Insider activity
Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
1
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-12 | Patak Stephen Paul Chief Revenue Officer · Officer | M | 2,500 | — | — |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions2
- Izzy Englander (Millennium Mgmt)+967,607$1.9M
- AQR Capital Management+282,961$552K
Added to3
- Ken Griffin (Citadel Advisors)+487,444$951K
- Two Sigma Investments+67,502$132K
- Renaissance Technologies+48,663$95K
Trimmed0
—
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2025Q1 | 2 | $245K |
| 2025Q2 | 2 | $389K |
| 2025Q3 | 6 | $1.8M |
| 2025Q4 | 8 | $4.2M |
Who owns BZAI
8 super-investors · 2025Q4
Tracked stake
2.17M
shares
Combined value
$4M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added5Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Izzy Englander Millennium Mgmt | 967.6K | $2M |
| 2 | Ken Griffin Citadel Advisors | 510.9K | $996K |
| 3 | AQR Capital Management | 283.0K | $552K |
| 4 | Renaissance Technologies | 134.1K | $261K |
| 5 | Two Sigma Investments | 113.6K | $221K |
| 6 | Ken Griffin Citadel Advisors | 70.2K | $137K |
| 7 | Ken Griffin Citadel Advisors | 53.3K | $104K |
| 8 | T. Rowe Price | 39.2K | $77 |
Recent moves
8 transactions
- +487,444 · 2025Q4
- +67,502 · 2025Q4
- +967,607 · 2025Q4
- +282,961 · 2025Q4
- +48,663 · 2025Q4
- +39,200 · 2025Q3
- +46,074 · 2025Q3
- +85,400 · 2025Q3
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