Ticker · CUSIP 038336103
Holders (tracked)
13
Combined shares
2,863,162
Combined value
$342.73M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
SEC event timeline
26 events
- +74,998 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−64,364 shares · 2025Q413F
- D.E. Shaw & Co. added2026-02-17+112,369 shares · 2025Q413F
- AQR Capital Management added2026-02-17+306,662 shares · 2025Q413F
- Two Sigma Investments added2026-02-17+157,969 shares · 2025Q413F
- Jeremy Grantham (GMO) trimmed2026-02-17−159,986 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−189,348 shares · 2025Q413F
- T. Rowe Price added2026-02-17+2,912 shares · 2025Q413F
- Wellington Management trimmed2026-02-17−552 shares · 2025Q413F
- −18,568 shares · 2025Q413F
- Renaissance Technologies added2026-02-12+28,500 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+746,940 shares · 2025Q413F
- Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09−4,814 shares · 2025Q413F
- −63,115 shares · 2025Q313F
- AQR Capital Management added2025-11-14+131,867 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−73,539 shares · 2025Q313F
- Two Sigma Investments trimmed2025-11-14−29,194 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+73,185 shares · 2025Q313F
- T. Rowe Price added2025-11-14+3,540 shares · 2025Q313F
- Wellington Management trimmed2025-11-14−233 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+22,000 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-13−755,492 shares · 2025Q313F
- Jeremy Grantham (GMO) added2025-11-13+3,644 shares · 2025Q313F
- +18,568 shares · 2025Q313F
- Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12−3,472 shares · 2025Q313F
- Norges Bank (Norway SWF) trimmed2025-11-12−11,193 shares · 2024Q313F
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
- Norges Bank (Norway SWF)+746,940$91.1M
- Paul Tudor Jones (Tudor Investment)+74,998$9.1M
Added to5
- AQR Capital Management+306,662$37.4M
- Two Sigma Investments+157,969$19.3M
- D.E. Shaw & Co.+112,369$13.7M
- Renaissance Technologies+28,500$3.5M
- T. Rowe Price+2,912$355
Trimmed5
- Izzy Englander (Millennium Mgmt)−189,348$23.1M
- Jeremy Grantham (GMO)−159,986$19.5M
- Ken Griffin (Citadel Advisors)−64,364$7.8M
- Ken Fisher (Fisher Asset Mgmt)−4,814$587K
- Wellington Management−552$67K
Exited1
- Ray Dalio (Bridgewater Associates)−18,568$2.5M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 13 | $68.38B |
| 2022Q2 | 12 | $60.07B |
| 2022Q3 | 12 | $56.3M |
| 2022Q4 | 14 | $718.1M |
| 2023Q1 | 14 | $780.4M |
| 2023Q2 | 15 | $867.5M |
| 2023Q3 | 14 | $933.4M |
| 2023Q4 | 14 | $903.9M |
| 2024Q1 | 14 | $1.16B |
| 2024Q2 | 15 | $1.16B |
| 2024Q3 | 13 | $292.3M |
| 2024Q4 | 12 | $222.4M |
| 2025Q1 | 13 | $161.0M |
| 2025Q2 | 14 | $372.2M |
| 2025Q3 | 13 | $240.6M |
| 2025Q4 | 13 | $342.7M |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2025-06-24 | Lisa McClain | Buy | $1K – $15K | PDF ↗ |
Who owns ATR
13 super-investors · 2025Q4
Tracked stake
2.86M
shares
Combined value
$343M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added5Trim6
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | AQR Capital Management | 843.6K | $103M |
| 2 | Norges Bank Norway SWF | 746.9K | $91M |
| 3 | Jeremy Grantham GMO | 231.0K | $28M |
| 4 | Izzy Englander Millennium Mgmt | 212.5K | $26M |
| 5 | Two Sigma Investments | 199.7K | $24M |
| 6 | D.E. Shaw & Co. | 197.1K | $24M |
| 7 | Renaissance Technologies | 143.6K | $18M |
| 8 | Ken Griffin Citadel Advisors | 83.6K | $10M |
| 9 | Paul Tudor Jones Tudor Investment | 75.0K | $9M |
| 10 | Ken Griffin Citadel Advisors | 39.9K | $5M |
| 11 | Ken Fisher Fisher Asset Mgmt | 23.1K | $3M |
| 12 | Wellington Management | 14.1K | $2M |
| 13 | T. Rowe Price | 53.0K | $6K |
Recent moves
20 transactions
- +157,969 · 2025Q4
- −552 · 2025Q4
- −159,986 · 2025Q4
- +306,662 · 2025Q4
- +112,369 · 2025Q4
- −189,348 · 2025Q4
- +2,912 · 2025Q4
- +74,998 · 2025Q4
- −64,364 · 2025Q4
- −18,568 · 2025Q4
- +28,500 · 2025Q4
- +746,940 · 2025Q4
- −4,814 · 2025Q4
- −63,115 · 2025Q3
- −233 · 2025Q3
- −29,194 · 2025Q3
- +73,185 · 2025Q3
- −73,539 · 2025Q3
- +3,540 · 2025Q3
- +131,867 · 2025Q3
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