Ticker · CUSIP 03945R102
Holders (tracked)
17
Combined shares
60,304,442
Combined value
$453.49M
Last close
$6.11
Quarter
2025Q4
Price · 1Y$6.11-1.12 (-15.49%)H $13.64 · L $4.94 · Avg Vol 40.5M
Position opened
Tracked holders · last 8 quarters
+4 vs previous quarter over the last 8.
Price is -18.8% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
19 events
- +14,600 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) added2026-02-17+489,044 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+221,489 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+110,929 shares · 2025Q4Position
- Two Sigma Investments trimmed2026-02-17−301,555 shares · 2025Q4Position
- AQR Capital Management added2026-02-17+43,204 shares · 2025Q4Position
- Steve Cohen (Point72) opened position2026-02-17+97,800 shares · 2025Q4Position
- T. Rowe Price trimmed2026-02-17−1,640,598 shares · 2025Q4Position
- Wellington Management trimmed2026-02-17−369,159 shares · 2025Q4Position
- Renaissance Technologies opened position2026-02-12+313,000 shares · 2025Q4Position
- Cathie Wood (ARK Invest) added2026-02-11+3,869,252 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+7,778,447 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+1,383,769 shares · 2025Q3Position
- Two Sigma Investments trimmed2025-11-14−2,964,734 shares · 2025Q3Position
- D.E. Shaw & Co. trimmed2025-11-14−15,948,972 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+2,355,333 shares · 2025Q3Position
- Wellington Management added2025-11-14+351,290 shares · 2025Q3Position
- AQR Capital Management added2025-11-14+34,621 shares · 2025Q3Position
- Cathie Wood (ARK Invest) added2025-11-12+1,715,945 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ACHR…
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 |
|---|---|---|---|---|
| Cathie Wood (ARK Invest) | 2021Q3 | $7.15 | -14.5% | $214.9M |
| Norges Bank (Norway SWF) | 2025Q4 | $7.52 | -18.7% | $47.5M |
| Steve Cohen (Point72) | 2025Q4 | $7.52 | -18.7% | $598K |
| Izzy Englander (Millennium Mgmt) | 2022Q1 | $7.63 | -19.9% | $11.3M |
| Izzy Englander (Millennium Mgmt) | 2022Q1 | $7.63 | -19.9% | $11.3M |
| Izzy Englander (Millennium Mgmt) | 2022Q1 | $7.63 | -19.9% | $11.3M |
| AQR Capital Management | 2023Q3 | $7.74 | -21.0% | $731K |
| Wellington Management | 2025Q1 | $7.78 | -21.4% | $5.7M |
| Renaissance Technologies | 2021Q4 | $8.11 | -24.7% | $1.9M |
| Paul Tudor Jones (Tudor Investment) | 2024Q4 | $8.55 | -28.6% | $89K |
| T. Rowe Price | 2022Q2 | $9.31 | -34.4% | $6.9M |
| Ken Griffin (Citadel Advisors) | 2021Q4 | $9.49 | -35.6% | $13.3M |
| Ken Griffin (Citadel Advisors) | 2021Q4 | $9.49 | -35.6% | $13.3M |
| Ken Griffin (Citadel Advisors) | 2021Q4 | $9.49 | -35.6% | $13.3M |
| D.E. Shaw & Co. | 2021Q3 | $9.77 | -37.5% | $8.8M |
| D.E. Shaw & Co. | 2021Q3 | $9.77 | -37.5% | $8.8M |
| Two Sigma Investments | 2021Q4 | $10.23 | -40.2% | $880K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions4
- Norges Bank (Norway SWF)+7,778,447$58.5M
- Renaissance Technologies+313,000$2.4M
- Steve Cohen (Point72)+97,800$735K
- Paul Tudor Jones (Tudor Investment)+14,600$110K
Added to5
- Cathie Wood (ARK Invest)+3,869,252$29.1M
- Ken Griffin (Citadel Advisors)+489,044$3.7M
- D.E. Shaw & Co.+221,489$1.7M
- Izzy Englander (Millennium Mgmt)+110,929$834K
- AQR Capital Management+43,204$325K
Trimmed3
- Wellington Management−369,159$2.8M
- Two Sigma Investments−301,555$2.3M
- T. Rowe Price−1,640,598$12K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 8 | $63.7M |
| 2022Q2 | 8 | $81.4M |
| 2022Q3 | 9 | $55.1M |
| 2022Q4 | 10 | $40.6M |
| 2023Q1 | 10 | $66.2M |
| 2023Q2 | 10 | $115.8M |
| 2023Q3 | 8 | $208.3M |
| 2023Q4 | 9 | $280.1M |
| 2024Q1 | 9 | $218.4M |
| 2024Q2 | 9 | $171.7M |
| 2024Q3 | 10 | $87.8M |
| 2024Q4 | 12 | $617.6M |
| 2025Q1 | 13 | $355.7M |
| 2025Q2 | 14 | $742.7M |
| 2025Q3 | 13 | $480.0M |
| 2025Q4 | 17 | $453.5M |
Who owns ACHR
17 super-investors · 2025Q4
Tracked stake
60.30M
shares
Combined value
$453M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New4Added10Trim3
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Cathie Wood ARK Invest | 35.17M | $264M |
| 2 | Norges Bank Norway SWF | 7.78M | $58M |
| 3 | Ken Griffin Citadel Advisors | 5.48M | $41M |
| 4 | Ken Griffin Citadel Advisors | 2.21M | $17M |
| 5 | Ken Griffin Citadel Advisors | 2.17M | $16M |
| 6 | Izzy Englander Millennium Mgmt | 1.85M | $14M |
| 7 | D.E. Shaw & Co. | 1.44M | $11M |
| 8 | D.E. Shaw & Co. | 1.13M | $9M |
| 9 | T. Rowe Price | 1.12M | $8M |
| 10 | Wellington Management | 933.4K | $7M |
| 11 | Renaissance Technologies | 313.0K | $2M |
| 12 | Izzy Englander Millennium Mgmt | 228.8K | $2M |
| 13 | Two Sigma Investments | 144.1K | $1M |
| 14 | AQR Capital Management | 119.6K | $900K |
| 15 | Izzy Englander Millennium Mgmt | 109.9K | $826K |
| 16 | Steve Cohen Point72 | 97.8K | $735K |
| 17 | Paul Tudor Jones Tudor Investment | 14.6K | $110K |
Recent moves
20 transactions
- +14,600 · 2025Q4
- +110,929 · 2025Q4
- −369,159 · 2025Q4
- +97,800 · 2025Q4
- +221,489 · 2025Q4
- +43,204 · 2025Q4
- −301,555 · 2025Q4
- TRIMT. Rowe Price−1,640,598 · 2025Q4
- +489,044 · 2025Q4
- +313,000 · 2025Q4
- +3,869,252 · 2025Q4
- +7,778,447 · 2025Q4
- −2,964,734 · 2025Q3
- TRIMD.E. Shaw & Co.−15,948,972 · 2025Q3
- +351,290 · 2025Q3
- +1,383,769 · 2025Q3
- +34,621 · 2025Q3
- +2,355,333 · 2025Q3
- +1,715,945 · 2025Q3
- −1,311,310 · 2025Q2
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