Ticker · CUSIP 031100100
Holders (tracked)
16
Combined shares
21,563,879
Combined value
$4.43B
Last close
$236.26
Quarter
2025Q4
Price · 1Y$236.26+79.47 (+50.69%)H $241.08 · L $154.24 · Avg Vol 1.3M
Congress buyCongress sell
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 8.
Price is +15.1% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
29 events
- T. Rowe Price trimmed2026-02-17−1,937,467 shares · 2025Q4Position
- AQR Capital Management trimmed2026-02-17−6,611 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) added2026-02-17+492,353 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+555,064 shares · 2025Q4Position
- +1,100 shares · 2025Q4Position
- Two Sigma Investments added2026-02-17+332,715 shares · 2025Q4Position
- Wellington Management added2026-02-17+2,110,818 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−32,488 shares · 2025Q4Position
- Steve Cohen (Point72) trimmed2026-02-17−290,109 shares · 2025Q4Position
- −31,589 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−101,300 shares · 2025Q4Position
- Cathie Wood (ARK Invest) trimmed2026-02-11−16,549 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+4,049,351 shares · 2025Q4Position
- Mario Gabelli (GAMCO) trimmed2026-02-05−15,890 shares · 2025Q4Position
- −179,281 shares · 2025Q3Position
- AQR Capital Management added2025-11-14+247,922 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+441,365 shares · 2025Q3Position
- Steve Cohen (Point72) opened position2025-11-14+415,141 shares · 2025Q3Position
- Two Sigma Investments added2025-11-14+169,523 shares · 2025Q3Position
- D.E. Shaw & Co. added2025-11-14+291,980 shares · 2025Q3Position
- T. Rowe Price trimmed2025-11-14−768,943 shares · 2025Q3Position
- Wellington Management trimmed2025-11-14−199,533 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−3,595,341 shares · 2025Q3Position
- Renaissance Technologies trimmed2025-11-13−18,500 shares · 2025Q3Position
- +36,197 shares · 2025Q3Position
- Jeremy Grantham (GMO) exited2025-11-13−3,600 shares · 2025Q3Position
- Mario Gabelli (GAMCO) trimmed2025-11-12−12,570 shares · 2025Q3Position
- Cathie Wood (ARK Invest) added2025-11-12+16,220 shares · 2025Q3Position
- Norges Bank (Norway SWF) trimmed2025-11-12−17,705 shares · 2024Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of AME…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Mario Gabelli (GAMCO) | 2016Q1 | $49.98 | +372.7% | $143.4M |
| T. Rowe Price | 2016Q1 | $153.45 | +54.0% | $1.86B |
| Steve Cohen (Point72) | 2016Q3 | $167.80 | +40.8% | $29.5M |
| Cathie Wood (ARK Invest) | 2016Q4 | $168.31 | +40.4% | $1.5M |
| AQR Capital Management | 2016Q3 | $176.29 | +34.0% | $212.0M |
| Wellington Management | 2016Q1 | $177.41 | +33.2% | $663.3M |
| Renaissance Technologies | 2016Q1 | $180.01 | +31.2% | $36.5M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $180.54 | +30.9% | $192.0M |
| Paul Tudor Jones (Tudor Investment) | 2016Q1 | $180.94 | +30.6% | $260K |
| Two Sigma Investments | 2016Q1 | $182.20 | +29.7% | $238.7M |
| Ray Dalio (Bridgewater Associates) | 2016Q2 | $185.90 | +27.1% | $1.1M |
| D.E. Shaw & Co. | 2016Q1 | $191.29 | +23.5% | $337.1M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $205.11 | +15.2% | $3.1M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $205.11 | +15.2% | $3.1M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $205.11 | +15.2% | $3.1M |
| Norges Bank (Norway SWF) | 2016Q1 | $21145.88 | -98.9% | $956.7M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions2
- Norges Bank (Norway SWF)+4,049,351$831.4M
- Paul Tudor Jones (Tudor Investment)+1,100$226K
Added to4
- Wellington Management+2,110,818$433.4M
- D.E. Shaw & Co.+555,064$114.0M
- Ken Griffin (Citadel Advisors)+492,353$101.1M
- Two Sigma Investments+332,715$68.3M
Trimmed8
- Steve Cohen (Point72)−290,109$59.6M
- Renaissance Technologies−101,300$20.8M
- Izzy Englander (Millennium Mgmt)−32,488$6.7M
- Ray Dalio (Bridgewater Associates)−31,589$6.5M
- Cathie Wood (ARK Invest)−16,549$3.4M
- Mario Gabelli (GAMCO)−15,890$3.3M
- AQR Capital Management−6,611$1.4M
- T. Rowe Price−1,937,467$398K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 17 | $321.59B |
| 2022Q2 | 18 | $359.46B |
| 2022Q3 | 21 | $3.01B |
| 2022Q4 | 19 | $4.00B |
| 2023Q1 | 21 | $4.54B |
| 2023Q2 | 17 | $5.31B |
| 2023Q3 | 16 | $4.69B |
| 2023Q4 | 14 | $4.98B |
| 2024Q1 | 19 | $5.70B |
| 2024Q2 | 17 | $5.38B |
| 2024Q3 | 17 | $2.88B |
| 2024Q4 | 15 | $2.82B |
| 2025Q1 | 15 | $2.42B |
| 2025Q2 | 16 | $3.43B |
| 2025Q3 | 14 | $3.10B |
| 2025Q4 | 16 | $4.43B |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2026-02-10 | Gilbert Cisneros | Sell (P) | $1K – $15K | PDF ↗ |
| 2026-01-09 | Gilbert Cisneros | Buy | $1K – $15K | PDF ↗ |
| 2025-08-18 | Dan Newhouse | Buy | $1K – $15K | PDF ↗ |
| 2025-04-08 | Rob Bresnahan | Sell | $1K – $15K | PDF ↗ |
| 2025-01-24 | Valerie Hoyle | Sell | $1K – $15K | PDF ↗ |
| 2024-10-29 | Valerie Hoyle | Buy | $1K – $15K | PDF ↗ |
Who owns AME
16 super-investors · 2025Q4
Tracked stake
21.56M
shares
Combined value
$4.43B
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added6Trim8
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | T. Rowe Price | 7.89M | $1.62B |
| 2 | Norges Bank Norway SWF | 4.05M | $831M |
| 3 | Wellington Management | 2.81M | $576M |
| 4 | Ken Griffin Citadel Advisors | 1.74M | $356M |
| 5 | D.E. Shaw & Co. | 1.43M | $293M |
| 6 | Two Sigma Investments | 1.01M | $207M |
| 7 | AQR Capital Management | 897.4K | $184M |
| 8 | Izzy Englander Millennium Mgmt | 812.9K | $167M |
| 9 | Mario Gabelli GAMCO | 606.9K | $125M |
| 10 | Renaissance Technologies | 154.7K | $32M |
| 11 | Steve Cohen Point72 | 125.0K | $26M |
| 12 | Ken Griffin Citadel Advisors | 19.9K | $4M |
| 13 | Ken Griffin Citadel Advisors | 13.0K | $3M |
| 14 | Cathie Wood ARK Invest | 6.4K | $1M |
| 15 | Ray Dalio Bridgewater Associates | 4.6K | $946K |
| 16 | Paul Tudor Jones Tudor Investment | 1.1K | $226K |
Recent moves
20 transactions
- TRIMT. Rowe Price−1,937,467 · 2025Q4
- +2,110,818 · 2025Q4
- +332,715 · 2025Q4
- −6,611 · 2025Q4
- +1,100 · 2025Q4
- +492,353 · 2025Q4
- +555,064 · 2025Q4
- −32,488 · 2025Q4
- −290,109 · 2025Q4
- −31,589 · 2025Q4
- −101,300 · 2025Q4
- −16,549 · 2025Q4
- +4,049,351 · 2025Q4
- −15,890 · 2025Q4
- −179,281 · 2025Q3
- +291,980 · 2025Q3
- +441,365 · 2025Q3
- +415,141 · 2025Q3
- +169,523 · 2025Q3
- TRIMT. Rowe Price−768,943 · 2025Q3
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