Ticker · CUSIP 04621X108
Holders (tracked)
10
Combined shares
2,865,510
Combined value
$434.29M
Last close
$224.65
Quarter
2025Q4
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
Price is +48.2% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
24 events
- AQR Capital Management trimmed2026-02-17−11,595 shares · 2025Q413F
- T. Rowe Price trimmed2026-02-17−94,399 shares · 2025Q413F
- Wellington Management added2026-02-17+21,945 shares · 2025Q413F
- Steve Cohen (Point72) exited2026-02-17−87,331 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−23,207 shares · 2025Q413F
- Two Sigma Investments trimmed2026-02-17−33,750 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−53,741 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+177,642 shares · 2025Q413F
- −2,841 shares · 2025Q413F
- Renaissance Technologies exited2026-02-12−61,900 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+670,848 shares · 2025Q413F
- −59,112 shares · 2025Q313F
- AQR Capital Management trimmed2025-11-14−351,984 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−274,891 shares · 2025Q313F
- Steve Cohen (Point72) added2025-11-14+85,831 shares · 2025Q313F
- Two Sigma Investments added2025-11-14+105,016 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+75,415 shares · 2025Q313F
- T. Rowe Price trimmed2025-11-14−90,562 shares · 2025Q313F
- Wellington Management added2025-11-14+313 shares · 2025Q313F
- Jeremy Grantham (GMO) exited2025-11-13−3,100 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+59,500 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-13−664,845 shares · 2025Q313F
- +56,582 shares · 2025Q313F
- Norges Bank (Norway SWF) added2025-11-12+5,956 shares · 2024Q313F
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of AIZ…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| T. Rowe Price | 2016Q1 | $42.15 | +433.0% | $238.9M |
| Wellington Management | 2016Q1 | $124.61 | +80.3% | $93.9M |
| AQR Capital Management | 2016Q1 | $174.05 | +29.1% | $23.1M |
| Ray Dalio (Bridgewater Associates) | 2016Q2 | $203.81 | +10.2% | $12.1M |
| D.E. Shaw & Co. | 2016Q2 | $207.58 | +8.2% | $25.7M |
| Two Sigma Investments | 2016Q3 | $212.77 | +5.6% | $20.8M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $224.70 | -0.0% | $72.4M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $232.02 | -3.2% | $4.6M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $232.02 | -3.2% | $4.6M |
| Norges Bank (Norway SWF) | 2016Q1 | $3361.42 | -93.3% | $150.7M |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- Norges Bank (Norway SWF)+670,848$161.6M
Added to2
- Izzy Englander (Millennium Mgmt)+177,642$42.8M
- Wellington Management+21,945$5.3M
Trimmed6
- Ken Griffin (Citadel Advisors)−53,741$12.9M
- Two Sigma Investments−33,750$8.1M
- D.E. Shaw & Co.−23,207$5.6M
- AQR Capital Management−11,595$2.8M
- Ray Dalio (Bridgewater Associates)−2,841$684K
- T. Rowe Price−94,399$23K
Exited2
- Steve Cohen (Point72)−87,331$18.9M
- Renaissance Technologies−61,900$13.4M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 10 | $116.52B |
| 2022Q2 | 12 | $106.96B |
| 2022Q3 | 12 | $80.2M |
| 2022Q4 | 13 | $901.7M |
| 2023Q1 | 13 | $916.0M |
| 2023Q2 | 15 | $983.4M |
| 2023Q3 | 13 | $927.2M |
| 2023Q4 | 12 | $1.11B |
| 2024Q1 | 10 | $1.40B |
| 2024Q2 | 12 | $1.25B |
| 2024Q3 | 13 | $507.7M |
| 2024Q4 | 10 | $447.6M |
| 2025Q1 | 12 | $327.8M |
| 2025Q2 | 13 | $444.1M |
| 2025Q3 | 11 | $261.5M |
| 2025Q4 | 10 | $434.3M |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2025-08-26 | Julia Letlow | Buy | $1K – $15K | PDF ↗ |
Who owns AIZ
10 super-investors · 2025Q4
Tracked stake
2.87M
shares
Combined value
$434M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added2Trim7
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Norges Bank Norway SWF | 670.8K | $162M |
| 2 | Wellington Management | 418.1K | $101M |
| 3 | Izzy Englander Millennium Mgmt | 322.2K | $78M |
| 4 | D.E. Shaw & Co. | 114.3K | $28M |
| 5 | AQR Capital Management | 103.0K | $25M |
| 6 | Two Sigma Investments | 92.4K | $22M |
| 7 | Ray Dalio Bridgewater Associates | 53.7K | $13M |
| 8 | Ken Griffin Citadel Advisors | 20.5K | $5M |
| 9 | Ken Griffin Citadel Advisors | 6.9K | $2M |
| 10 | T. Rowe Price | 1.06M | $256K |
Recent moves
20 transactions
- TRIMT. Rowe Price−94,399 · 2025Q4
- −33,750 · 2025Q4
- −87,331 · 2025Q4
- −11,595 · 2025Q4
- TRIMD.E. Shaw & Co.−23,207 · 2025Q4
- +177,642 · 2025Q4
- −53,741 · 2025Q4
- +21,945 · 2025Q4
- −2,841 · 2025Q4
- −61,900 · 2025Q4
- +670,848 · 2025Q4
- −59,112 · 2025Q3
- +85,831 · 2025Q3
- −351,984 · 2025Q3
- +313 · 2025Q3
- +105,016 · 2025Q3
- +75,415 · 2025Q3
- −274,891 · 2025Q3
- TRIMT. Rowe Price−90,562 · 2025Q3
- +56,582 · 2025Q3
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