Ticker · CUSIP 04962H506
Holders (tracked)
7
Combined shares
4,142,965
Combined value
$2.44M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 8.
SEC event timeline
8 events
- Ken Griffin (Citadel Advisors) added2026-02-17+384,746 shares · 2025Q413F
- Two Sigma Investments opened position2026-02-17+23,452 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−425,780 shares · 2025Q413F
- Steve Cohen (Point72) opened position2026-02-17+48,092 shares · 2025Q413F
- Renaissance Technologies added2026-02-12+514,175 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−378,887 shares · 2025Q313F
- AQR Capital Management exited2025-11-14−48,329 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−263,588 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 positions2
- Steve Cohen (Point72)+48,092$28K
- Two Sigma Investments+23,452$14K
Added to2
- Renaissance Technologies+514,175$303K
- Ken Griffin (Citadel Advisors)+384,746$227K
Trimmed1
- Izzy Englander (Millennium Mgmt)−425,780$251K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 9 | $22.2M |
| 2022Q2 | 10 | $11.0M |
| 2022Q3 | 9 | $6K |
| 2022Q4 | 8 | $2.8M |
| 2023Q1 | 7 | $3.0M |
| 2023Q2 | 7 | $4.5M |
| 2023Q3 | 7 | $2.5M |
| 2023Q4 | 7 | $2.7M |
| 2024Q1 | 7 | $7.2M |
| 2024Q2 | 8 | $13.3M |
| 2024Q3 | 6 | $2.5M |
| 2024Q4 | 7 | $2.0M |
| 2025Q1 | 5 | $1.3M |
| 2025Q2 | 6 | $3.3M |
| 2025Q3 | 5 | $3.1M |
| 2025Q4 | 7 | $2.4M |
Who owns ATOSEUR
7 super-investors · 2025Q4
Tracked stake
4.14M
shares
Combined value
$2M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added4Trim1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 2.06M | $1M |
| 2 | Izzy Englander Millennium Mgmt | 1.24M | $733K |
| 3 | Ken Griffin Citadel Advisors | 648.1K | $382K |
| 4 | Ken Griffin Citadel Advisors | 85.8K | $51K |
| 5 | Steve Cohen Point72 | 48.1K | $28K |
| 6 | Ken Griffin Citadel Advisors | 31.8K | $19K |
| 7 | Two Sigma Investments | 23.5K | $14K |
Recent moves
20 transactions
- −425,780 · 2025Q4
- +23,452 · 2025Q4
- +48,092 · 2025Q4
- +384,746 · 2025Q4
- +514,175 · 2025Q4
- −378,887 · 2025Q3
- −48,329 · 2025Q3
- −263,588 · 2025Q3
- +32,089 · 2025Q2
- +2,047,535 · 2025Q2
- SOLDT. Rowe Price−51,198 · 2025Q2
- −42,850 · 2025Q2
- −29,149 · 2025Q1
- −89,837 · 2025Q1
- +16,240 · 2025Q1
- +297,469 · 2025Q1
- +29,149 · 2024Q4
- −6,386 · 2024Q4
- +10,428 · 2024Q4
- +247,562 · 2024Q4
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