Ticker · CUSIP 05278C107
Holders (tracked)
5
Combined shares
1,240,472
Combined value
$27.61M
Last close
$18.72
Quarter
2025Q4
Price · 1Y$18.72-7.10 (-27.50%)H $29.92 · L $16.92 · Avg Vol 455K
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 8.
Price is -15.9% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
14 events
- AQR Capital Management trimmed2026-02-17−269,860 shares · 2025Q4Position
- D.E. Shaw & Co. opened position2026-02-17+13,817 shares · 2025Q4Position
- +84,366 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+12,531 shares · 2025Q4Position
- Wellington Management exited2026-02-17−20,703 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+636,443 shares · 2025Q4Position
- AQR Capital Management trimmed2025-11-14−231,332 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−2,806 shares · 2025Q3Position
- D.E. Shaw & Co. exited2025-11-14−20,797 shares · 2025Q3Position
- Wellington Management trimmed2025-11-14−21,887 shares · 2025Q3Position
- Prem Watsa (Fairfax Financial) exited2025-11-14−54,000 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−469,961 shares · 2025Q3Position
- Jeremy Grantham (GMO) exited2025-11-13−46,369 shares · 2025Q3Position
- Norges Bank (Norway SWF) trimmed2025-11-12−122,422 shares · 2024Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ATHM…
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 |
|---|---|---|---|---|
| Ken Griffin (Citadel Advisors) | 2016Q1 | $25.79 | -27.4% | $1.6M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $25.86 | -27.6% | $399K |
| D.E. Shaw & Co. | 2016Q1 | $28.23 | -33.7% | $259K |
| AQR Capital Management | 2017Q4 | $30.59 | -38.8% | $9.1M |
| Norges Bank (Norway SWF) | 2017Q3 | $3096.66 | -99.4% | $11.9M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions3
- Norges Bank (Norway SWF)+636,443$14.2M
- Ken Griffin (Citadel Advisors)+84,366$1.9M
- D.E. Shaw & Co.+13,817$308K
Added to1
- Izzy Englander (Millennium Mgmt)+12,531$279K
Trimmed1
- AQR Capital Management−269,860$6.0M
Exited1
- Wellington Management−20,703$591K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 10 | $20.39B |
| 2022Q2 | 12 | $30.19B |
| 2022Q3 | 13 | $212.2M |
| 2022Q4 | 12 | $212.7M |
| 2023Q1 | 13 | $238.2M |
| 2023Q2 | 13 | $175.5M |
| 2023Q3 | 12 | $169.2M |
| 2023Q4 | 11 | $145.5M |
| 2024Q1 | 12 | $131.0M |
| 2024Q2 | 14 | $158.1M |
| 2024Q3 | 11 | $107.1M |
| 2024Q4 | 11 | $63.6M |
| 2025Q1 | 8 | $39.5M |
| 2025Q2 | 8 | $46.8M |
| 2025Q3 | 3 | $22.4M |
| 2025Q4 | 5 | $27.6M |
Who owns ATHM
5 super-investors · 2025Q4
Tracked stake
1.24M
shares
Combined value
$28M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New3Added1Trim1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Norges Bank Norway SWF | 636.4K | $14M |
| 2 | AQR Capital Management | 484.5K | $11M |
| 3 | Ken Griffin Citadel Advisors | 84.4K | $2M |
| 4 | Izzy Englander Millennium Mgmt | 21.3K | $475K |
| 5 | D.E. Shaw & Co. | 13.8K | $308K |
Recent moves
20 transactions
- −20,703 · 2025Q4
- −269,860 · 2025Q4
- +84,366 · 2025Q4
- +12,531 · 2025Q4
- +13,817 · 2025Q4
- +636,443 · 2025Q4
- −54,000 · 2025Q3
- −21,887 · 2025Q3
- −231,332 · 2025Q3
- SOLDD.E. Shaw & Co.−20,797 · 2025Q3
- −2,806 · 2025Q3
- −469,961 · 2025Q3
- −46,369 · 2025Q3
- −122,422 · 2024Q3
- +42,590 · 2025Q2
- +20,797 · 2025Q2
- −12,173 · 2025Q2
- −78,715 · 2025Q2
- −119,700 · 2025Q2
- +469,961 · 2025Q2
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