Ticker · CUSIP 037326105
Holders (tracked)
4
Combined shares
728,337
Combined value
$830.3K
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
SEC event timeline
6 events
- Ken Griffin (Citadel Advisors) added2026-02-17+92,523 shares · 2025Q413F
- Two Sigma Investments trimmed2026-02-17−44,819 shares · 2025Q413F
- +95,683 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−46,997 shares · 2025Q413F
- Two Sigma Investments trimmed2025-11-14−15,010 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−13,257 shares · 2025Q313F
Insider activity
Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
3
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-10 | Aziz Kabeer Insider | A | 3,775 | — | $0 |
| 04-10 | Martin Patricia A. Insider | A | 1,192 | — | $0 |
| 04-10 | Marks Gilbert Lynn Insider | A | 3,775 | — | $0 |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- Izzy Englander (Millennium Mgmt)+95,683$109K
Added to1
- Ken Griffin (Citadel Advisors)+92,523$105K
Trimmed2
- Renaissance Technologies−46,997$54K
- Two Sigma Investments−44,819$51K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 3 | $22.0M |
| 2022Q2 | 3 | $11.6M |
| 2022Q3 | 3 | $27K |
| 2022Q4 | 2 | $17.0M |
| 2023Q1 | 2 | $18.0M |
| 2023Q2 | 3 | $11.8M |
| 2023Q3 | 2 | $25.7M |
| 2023Q4 | 5 | $39.4M |
| 2024Q1 | 4 | $6.6M |
| 2024Q2 | 5 | $5.4M |
| 2024Q3 | 3 | $1.1M |
| 2024Q4 | 4 | $1.7M |
| 2025Q1 | 3 | $1.0M |
| 2025Q2 | 3 | $689K |
| 2025Q3 | 3 | $803K |
| 2025Q4 | 4 | $830K |
Who owns ANTX
4 super-investors · 2025Q4
Tracked stake
728.3K
shares
Combined value
$830K
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added1Trim2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 338.6K | $386K |
| 2 | Two Sigma Investments | 178.5K | $204K |
| 3 | Ken Griffin Citadel Advisors | 115.5K | $132K |
| 4 | Izzy Englander Millennium Mgmt | 95.7K | $109K |
Recent moves
20 transactions
- +92,523 · 2025Q4
- −44,819 · 2025Q4
- +95,683 · 2025Q4
- −46,997 · 2025Q4
- −15,010 · 2025Q3
- −13,257 · 2025Q3
- −105,613 · 2025Q2
- −50,038 · 2025Q2
- +30,146 · 2025Q2
- −159,328 · 2025Q1
- −56,372 · 2025Q1
- −211,065 · 2025Q1
- +222,492 · 2024Q4
- −188,559 · 2024Q4
- +155,973 · 2024Q4
- −128,427 · 2024Q3
- +45,752 · 2024Q3
- +409,500 · 2024Q3
- +37,920 · 2024Q2
- +429,438 · 2024Q2
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