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Of the 10 tracked institutions holding POWI, 3 have a 3-year clone track record — 2 of them beat the S&P. Average holder's clone alpha: +2.8pt. It's a gauge of who owns the name, not just how many.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Among the 10 tracked institutional investors we monitor, POWI (POWER INTEGRATIONS INC) is held with a combined value of $1.74B across 25,132,052 shares. The largest holder is BlackRock, Inc. with a position worth $730.56M (0.01% of their portfolio). Bridgewater Associates, LP opened a new position in the most recent quarter. 7 funds increased their holdings. 2 funds reduced their position.
Total Institutional Value
$1.74B
Total Shares Held
25,132,052
Institutional Holders
10
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $730.56M | 0.01% | +2.4% |
| 2 | WELLINGTON MANAGEMENT GROUP LLP | $301.19M | 0.05% | +7.1% |
| 3 | VANGUARD GROUP INC | $268.57M | 0.00% | +5.7% |
| 4 | STATE STREET CORP | $267.49M | 0.01% | +3.8% |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | $161.23M | 0.02% | +37.8% |
| 6 | AQR CAPITAL MANAGEMENT LLC | $3.65M | 0.00% | -68.3% |
| 7 | CITADEL ADVISORS LLC | $3.57M | 0.00% | -61.2% |
| 8 | Bridgewater Associates, LP | $1.50M | 0.01% | New |
| 9 | FMR LLC | $963.57K | 0.00% | +4.2% |
| 10 | TWO SIGMA ADVISERS, LP | $799.65K | 0.00% | +37.2% |
| Member | Type | Date |
|---|---|---|
| Thomas R Tillis | Sell | Feb 13, 2015 |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of POWI with a position worth $730.56M, representing 0.01% of their portfolio. In total, 10 institutional investors hold POWI with a combined value of $1.74B.
In the most recent quarter, 1 fund opened a new position in POWI. Additionally, 7 increased their holdings and 2 reduced their positions.
Institutional investors hold $1.74B worth of POWI stock across 10 positions. The largest institutional holder is BlackRock, Inc. with $730.56M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For POWI, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their POWI positions.
Last Close
$48.25
2026-10-21
YTD
+29.4%
31% of 52-week range
