Ticker · CUSIP 006739106
Holders (tracked)
8
Combined shares
708,308
Combined value
$76.07M
Last close
$94.32
Quarter
2025Q4
Price · 1Y$94.32-6.93 (-6.84%)H $122.75 · L $91.59 · Avg Vol 186K
Tracked holders · last 8 quarters
-3 vs previous quarter over the last 8.
Price is -12.2% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
15 events
- Ken Griffin (Citadel Advisors) added2026-02-17+18,285 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−419,090 shares · 2025Q4Position
- Steve Cohen (Point72) exited2026-02-17−7,798 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+1,723 shares · 2025Q4Position
- Wellington Management trimmed2026-02-17−44,660 shares · 2025Q4Position
- AQR Capital Management trimmed2026-02-17−343 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−53,800 shares · 2025Q4Position
- AQR Capital Management added2025-11-14+1,734 shares · 2025Q3Position
- Steve Cohen (Point72) trimmed2025-11-14−525,205 shares · 2025Q3Position
- Two Sigma Investments exited2025-11-14−5,358 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+67,426 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+894 shares · 2025Q3Position
- Wellington Management trimmed2025-11-14−10,028 shares · 2025Q3Position
- D.E. Shaw & Co. trimmed2025-11-14−2,204 shares · 2025Q3Position
- Renaissance Technologies added2025-11-13+21,800 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ADUS…
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 |
|---|---|---|---|---|
| T. Rowe Price | 2018Q3 | $71.16 | +32.5% | $21.9M |
| Wellington Management | 2016Q1 | $97.77 | -3.5% | $34.2M |
| AQR Capital Management | 2016Q1 | $102.87 | -8.3% | $785K |
| Ken Griffin (Citadel Advisors) | 2017Q1 | $108.12 | -12.8% | $1.6M |
| Ken Griffin (Citadel Advisors) | 2017Q1 | $108.12 | -12.8% | $1.6M |
| D.E. Shaw & Co. | 2016Q1 | $109.41 | -13.8% | $775K |
| Renaissance Technologies | 2016Q1 | $114.35 | -17.5% | $4.6M |
| Izzy Englander (Millennium Mgmt) | 2016Q4 | $115.21 | -18.1% | $282K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to2
- Ken Griffin (Citadel Advisors)+18,285$2.0M
- T. Rowe Price+1,723$185
Trimmed4
- Izzy Englander (Millennium Mgmt)−419,090$45.0M
- Renaissance Technologies−53,800$5.8M
- Wellington Management−44,660$4.8M
- AQR Capital Management−343$37K
Exited1
- Steve Cohen (Point72)−7,798$920K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 13 | $304.0M |
| 2022Q2 | 12 | $267.2M |
| 2022Q3 | 9 | $314.5M |
| 2022Q4 | 14 | $370.2M |
| 2023Q1 | 14 | $397.4M |
| 2023Q2 | 15 | $386.9M |
| 2023Q3 | 14 | $300.9M |
| 2023Q4 | 13 | $320.5M |
| 2024Q1 | 14 | $452.7M |
| 2024Q2 | 14 | $599.5M |
| 2024Q3 | 13 | $187.7M |
| 2024Q4 | 9 | $62.0M |
| 2025Q1 | 11 | $142.5M |
| 2025Q2 | 12 | $204.5M |
| 2025Q3 | 11 | $142.3M |
| 2025Q4 | 8 | $76.1M |
Who owns ADUS
8 super-investors · 2025Q4
Tracked stake
708.3K
shares
Combined value
$76M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added3Trim4Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Wellington Management | 362.7K | $39M |
| 2 | T. Rowe Price | 231.9K | $25M |
| 3 | Renaissance Technologies | 48.8K | $5M |
| 4 | Ken Griffin Citadel Advisors | 28.1K | $3M |
| 5 | Ken Griffin Citadel Advisors | 17.3K | $2M |
| 6 | AQR Capital Management | 8.3K | $893K |
| 7 | D.E. Shaw & Co. | 8.2K | $882K |
| 8 | Izzy Englander Millennium Mgmt | 3.0K | $321K |
Recent moves
20 transactions
- −44,660 · 2025Q4
- −343 · 2025Q4
- +1,723 · 2025Q4
- −419,090 · 2025Q4
- +18,285 · 2025Q4
- −7,798 · 2025Q4
- −53,800 · 2025Q4
- TRIMD.E. Shaw & Co.−2,204 · 2025Q3
- +67,426 · 2025Q3
- −10,028 · 2025Q3
- −525,205 · 2025Q3
- +1,734 · 2025Q3
- −5,358 · 2025Q3
- +894 · 2025Q3
- +21,800 · 2025Q3
- +2,207 · 2025Q2
- +231,076 · 2025Q2
- TRIMD.E. Shaw & Co.−40,683 · 2025Q2
- +173,576 · 2025Q2
- +5,358 · 2025Q2
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