Ticker · CUSIP 739276103

POWI

POWER INTEGRATIONS INC
···Share
Holders (tracked)
10
Combined shares
4,187,178
Combined value
$115.32M
Last close
Quarter
2025Q4
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
10122024Q12025Q4

SEC event timeline

17 events
  1. −44,817 shares · 2025Q4
    13F
  2. −21,062 shares · 2025Q4
    13F
  3. −567,362 shares · 2025Q4
    13F
  4. +6,604 shares · 2025Q4
    13F
  5. −41,706 shares · 2025Q4
    13F
  6. +895,857 shares · 2025Q4
    13F
  7. +162,691 shares · 2025Q4
    13F
  8. −14,300 shares · 2025Q4
    13F
  9. +57,482 shares · 2025Q3
    13F
  10. +94,707 shares · 2025Q3
    13F
  11. +254,832 shares · 2025Q3
    13F
  12. +3,008 shares · 2025Q3
    13F
  13. +595,404 shares · 2025Q3
    13F
  14. −460,765 shares · 2025Q3
    13F
  15. +119,300 shares · 2025Q3
    13F
  16. −588,489 shares · 2025Q3
    13F
  17. +113,403 shares · 2024Q3
    13F

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 positions1
Added to2
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
13
$47.08B
2022Q2
13
$36.18B
2022Q3
14
$29.8M
2022Q4
14
$752.8M
2023Q1
13
$860.1M
2023Q2
12
$1.02B
2023Q3
13
$669.3M
2023Q4
11
$743.0M
2024Q1
12
$813.5M
2024Q2
13
$829.2M
2024Q3
13
$333.9M
2024Q4
12
$122.6M
2025Q1
10
$158.9M
2025Q2
9
$199.3M
2025Q3
7
$146.3M
2025Q4
10
$115.3M

Who owns POWI

10 super-investors · 2025Q4
Tracked stake
4.19M
shares
Combined value
$115M
% of shares outstanding
shares-out unknown
Quarter action mix
New1Added2Trim7
#ManagerSharesValue
1Wellington Management2.42M$86M
2AQR Capital Management284.4K$10M
3Renaissance Technologies206.1K$7M
4Ken Griffin
Citadel Advisors
108.6K$4M
5Izzy Englander
Millennium Mgmt
106.6K$4M
6D.E. Shaw & Co.87.2K$3M
7Ken Griffin
Citadel Advisors
11.6K$412K
8Ken Griffin
Citadel Advisors
8.8K$313K
9Two Sigma Investments6.6K$235K
10T. Rowe Price943.4K$34K

Recent moves

20 transactions
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