Ticker · CUSIP 03852U106
Holders (tracked)
15
Combined shares
24,970,890
Combined value
$920.43M
Last close
$45.25
Quarter
2025Q4
Price · 1Y$45.25+13.45 (+42.30%)H $45.25 · L $31.09 · Avg Vol 2.4M
Congress buyCongress sell
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is +22.8% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
26 events
- +10,056 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−629,656 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+320,685 shares · 2025Q4Position
- AQR Capital Management added2026-02-17+5,492,046 shares · 2025Q4Position
- Jeremy Grantham (GMO) trimmed2026-02-17−356,659 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+297,873 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+393,193 shares · 2025Q4Position
- Wellington Management added2026-02-17+4,575 shares · 2025Q4Position
- Lee Ainslie (Maverick Capital) exited2026-02-13−102,387 shares · 2025Q4Position
- George Soros (Soros Fund Mgmt) exited2026-02-13−2,270,287 shares · 2025Q4Position
- Renaissance Technologies added2026-02-12+158,800 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+3,492,633 shares · 2025Q4Position
- Ken Fisher (Fisher Asset Mgmt) added2026-02-09+94,286 shares · 2025Q4Position
- AQR Capital Management added2025-11-14+2,484,319 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−34,340 shares · 2025Q3Position
- D.E. Shaw & Co. added2025-11-14+1,177,022 shares · 2025Q3Position
- +102,387 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+1,535,492 shares · 2025Q3Position
- Wellington Management trimmed2025-11-14−26,065 shares · 2025Q3Position
- George Soros (Soros Fund Mgmt) added2025-11-14+720,195 shares · 2025Q3Position
- Renaissance Technologies trimmed2025-11-13−331,500 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−3,229,482 shares · 2025Q3Position
- Jeremy Grantham (GMO) added2025-11-13+227,301 shares · 2025Q3Position
- Ken Fisher (Fisher Asset Mgmt) added2025-11-12+622,430 shares · 2025Q3Position
- Norges Bank (Norway SWF) added2025-11-12+60,146 shares · 2024Q3Position
- −3,843 shares · 2025Q3Position
Insider activity
Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
2
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-10 | DREILING RICHARD W Director | A | 641 | $42.86 | $27.5K |
| 04-10 | Creed Greg Director | A | 787 | $42.86 | $33.7K |
Follow-the-investor returns
If you'd copied each holder of ARMK…
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 |
|---|---|---|---|---|
| Norges Bank (Norway SWF) | 2016Q1 | $35.18 | +28.6% | $158.0M |
| First Eagle Investment Management | 2022Q1 | $35.71 | +26.7% | $565K |
| T. Rowe Price | 2016Q1 | $35.77 | +26.5% | $251.7M |
| Paul Tudor Jones (Tudor Investment) | 2016Q1 | $35.92 | +26.0% | $455K |
| Jeremy Grantham (GMO) | 2019Q2 | $36.16 | +25.2% | $114.6M |
| Wellington Management | 2016Q1 | $36.61 | +23.6% | $7.5M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $36.88 | +22.7% | $15.8M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $36.88 | +22.7% | $15.8M |
| AQR Capital Management | 2016Q1 | $37.12 | +21.9% | $400.9M |
| Renaissance Technologies | 2016Q1 | $37.50 | +20.7% | $14.7M |
| D.E. Shaw & Co. | 2016Q1 | $37.78 | +19.8% | $73.8M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $38.61 | +17.2% | $4.0M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $38.61 | +17.2% | $4.0M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $38.61 | +17.2% | $4.0M |
| Ken Fisher (Fisher Asset Mgmt) | 2025Q2 | $40.19 | +12.6% | $70.7M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions2
- Norges Bank (Norway SWF)+3,492,633$128.7M
- Paul Tudor Jones (Tudor Investment)+10,056$371K
Added to7
- AQR Capital Management+5,492,046$202.4M
- D.E. Shaw & Co.+320,685$11.8M
- Izzy Englander (Millennium Mgmt)+297,873$11.0M
- Renaissance Technologies+158,800$5.9M
- Ken Fisher (Fisher Asset Mgmt)+94,286$3.5M
- Wellington Management+4,575$169K
- T. Rowe Price+393,193$14K
Trimmed2
- Ken Griffin (Citadel Advisors)−629,656$23.2M
- Jeremy Grantham (GMO)−356,659$13.1M
Exited2
- George Soros (Soros Fund Mgmt)−2,270,287$87.2M
- Lee Ainslie (Maverick Capital)−102,387$3.9M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 16 | $82.72B |
| 2022Q2 | 15 | $55.02B |
| 2022Q3 | 16 | $721.2M |
| 2022Q4 | 15 | $1.07B |
| 2023Q1 | 18 | $1.34B |
| 2023Q2 | 16 | $1.64B |
| 2023Q3 | 15 | $1.17B |
| 2023Q4 | 14 | $829.8M |
| 2024Q1 | 13 | $1.10B |
| 2024Q2 | 14 | $1.22B |
| 2024Q3 | 11 | $557.2M |
| 2024Q4 | 10 | $365.5M |
| 2025Q1 | 11 | $273.2M |
| 2025Q2 | 15 | $621.5M |
| 2025Q3 | 15 | $696.2M |
| 2025Q4 | 15 | $920.4M |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2025-12-10 | Gilbert Cisneros | Buy | $1K – $15K | PDF ↗ |
| 2025-06-17 | Lisa McClain | Sell | $1K – $15K | PDF ↗ |
| 2025-06-11 | Lisa McClain | Buy | $1K – $15K | PDF ↗ |
| 2025-04-14 | Gilbert Cisneros | Buy | $1K – $15K | PDF ↗ |
| 2025-02-05 | William R. Keating | Buy | $1K – $15K | PDF ↗ |
Who owns ARMK
15 super-investors · 2025Q4
Tracked stake
24.97M
shares
Combined value
$920M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added8Trim4Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | AQR Capital Management | 8.86M | $327M |
| 2 | T. Rowe Price | 5.56M | $205M |
| 3 | Norges Bank Norway SWF | 3.49M | $129M |
| 4 | Jeremy Grantham GMO | 2.53M | $93M |
| 5 | D.E. Shaw & Co. | 1.63M | $60M |
| 6 | Ken Fisher Fisher Asset Mgmt | 1.56M | $58M |
| 7 | Izzy Englander Millennium Mgmt | 350.2K | $13M |
| 8 | Renaissance Technologies | 324.5K | $12M |
| 9 | Izzy Englander Millennium Mgmt | 177.1K | $7M |
| 10 | Wellington Management | 165.3K | $6M |
| 11 | Ken Griffin Citadel Advisors | 122.6K | $5M |
| 12 | Ken Griffin Citadel Advisors | 89.5K | $3M |
| 13 | Ken Griffin Citadel Advisors | 78.0K | $3M |
| 14 | First Eagle Investment Management | 12.5K | $460K |
| 15 | Paul Tudor Jones Tudor Investment | 10.1K | $371K |
Recent moves
20 transactions
- −629,656 · 2025Q4
- +393,193 · 2025Q4
- +4,575 · 2025Q4
- +5,492,046 · 2025Q4
- +297,873 · 2025Q4
- +320,685 · 2025Q4
- −356,659 · 2025Q4
- +10,056 · 2025Q4
- −102,387 · 2025Q4
- −2,270,287 · 2025Q4
- +158,800 · 2025Q4
- +3,492,633 · 2025Q4
- +94,286 · 2025Q4
- +102,387 · 2025Q3
- +1,535,492 · 2025Q3
- −34,340 · 2025Q3
- −26,065 · 2025Q3
- +1,177,022 · 2025Q3
- +720,195 · 2025Q3
- +2,484,319 · 2025Q3
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