Ticker · CUSIP 01438T106
Holders (tracked)
11
Combined shares
4,218,776
Combined value
$21.52M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
SEC event timeline
16 events
- Ken Griffin (Citadel Advisors) exited2026-02-17−152,254 shares · 2025Q413F
- D.E. Shaw & Co. added2026-02-17+221,481 shares · 2025Q413F
- Two Sigma Investments added2026-02-17+14,310 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−105,306 shares · 2025Q413F
- Steve Cohen (Point72) opened position2026-02-17+94,094 shares · 2025Q413F
- +19,000 shares · 2025Q413F
- Wellington Management trimmed2026-02-17−10,970 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−278,438 shares · 2025Q413F
- Renaissance Technologies added2026-02-12+152,700 shares · 2025Q413F
- AQR Capital Management added2025-11-14+31,548 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) added2025-11-14+129,759 shares · 2025Q313F
- Two Sigma Investments added2025-11-14+217,315 shares · 2025Q313F
- T. Rowe Price added2025-11-14+15,579 shares · 2025Q313F
- Wellington Management opened position2025-11-14+189,821 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+892,171 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+84,500 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions2
- Steve Cohen (Point72)+94,094$487K
- Paul Tudor Jones (Tudor Investment)+19,000$98K
Added to3
- D.E. Shaw & Co.+221,481$1.1M
- Renaissance Technologies+152,700$791K
- Two Sigma Investments+14,310$74K
Trimmed3
- AQR Capital Management−278,438$1.4M
- Izzy Englander (Millennium Mgmt)−105,306$545K
- Wellington Management−10,970$57K
Exited1
- Ken Griffin (Citadel Advisors)−152,254$795K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 7 | $30.6M |
| 2022Q2 | 9 | $24.1M |
| 2022Q3 | 9 | $26K |
| 2022Q4 | 9 | $18.5M |
| 2023Q1 | 10 | $17.9M |
| 2023Q2 | 10 | $36.0M |
| 2023Q3 | 10 | $31.4M |
| 2023Q4 | 8 | $14.8M |
| 2024Q1 | 9 | $13.8M |
| 2024Q2 | 10 | $16.1M |
| 2024Q3 | 7 | $4.3M |
| 2024Q4 | 9 | $4.8M |
| 2025Q1 | 10 | $6.4M |
| 2025Q2 | 8 | $8.7M |
| 2025Q3 | 12 | $21.5M |
| 2025Q4 | 11 | $21.5M |
Who owns ALDX
11 super-investors · 2025Q4
Tracked stake
4.22M
shares
Combined value
$22M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added3Trim3Sold2Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | D.E. Shaw & Co. | 1.60M | $8M |
| 2 | AQR Capital Management | 1.23M | $6M |
| 3 | Renaissance Technologies | 350.0K | $2M |
| 4 | Two Sigma Investments | 287.4K | $1M |
| 5 | Ken Griffin Citadel Advisors | 231.2K | $1M |
| 6 | Wellington Management | 178.9K | $926K |
| 7 | Ken Griffin Citadel Advisors | 121.7K | $630K |
| 8 | Steve Cohen Point72 | 94.1K | $487K |
| 9 | Izzy Englander Millennium Mgmt | 44.1K | $228K |
| 10 | Paul Tudor Jones Tudor Investment | 19.0K | $98K |
| 11 | T. Rowe Price | 64.3K | $333 |
Recent moves
20 transactions
- +14,310 · 2025Q4
- −278,438 · 2025Q4
- −152,254 · 2025Q4
- +94,094 · 2025Q4
- +19,000 · 2025Q4
- −105,306 · 2025Q4
- +221,481 · 2025Q4
- −10,970 · 2025Q4
- +152,700 · 2025Q4
- +15,579 · 2025Q3
- +892,171 · 2025Q3
- +31,548 · 2025Q3
- +189,821 · 2025Q3
- +217,315 · 2025Q3
- +129,759 · 2025Q3
- +84,500 · 2025Q3
- +412 · 2025Q2
- +13,600 · 2025Q2
- −115,549 · 2025Q2
- +336,030 · 2025Q2
Embed this chart
Paste this iframe anywhere to embed the live ALDX chart.
<iframe src="https://openstocks.me/embed/stock/ALDX" width="100%" height="480" frameborder="0" loading="lazy" title="ALDX chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>