Latest Period
Q1 2026
Security Snapshot
POWER INTEGRATIONS INC - COMMON (POWI) Institutional Ownership
CUSIP: 739276103
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
303
Shares (Excl. Options)
63,444,325
Price
$51.20
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- Security type / class
- Equity / COMMON
- Symbol
- POWI on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 63,444,325
- Total 13F value
- $3,242,128,674
- Portfolio coverage rank
- 0%
- Share change
- +3,436,762
- Value change
- +$194,739,037
- Number of holders
- 303
- Shares outstanding
- 56,029,578
- SEC-reported price per share
- $71.15
- Insider filing price
- $71.15
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- POWI - POWER INTEGRATIONS INC - COMMON is tracked under CUSIP 739276103.
- 303 institutions reported positions in Q1 2026.
- 6 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 295 to 303 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $2,120,385,730 to $3,242,128,674.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 303 institutions filings for Q1 2026.
Security key
739276103
Latest holder period
Q1 2026
13F holders
303
13D/G owners
6
CIK / CUSIP context first
Open Q1 2026 holders
POWI full holder history
POWER INTEGRATIONS INC SEC filings
POWER INTEGRATIONS INC company facts
POWER INTEGRATIONS INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 739276103:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
6
Security
POWI
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | $292,394,455 | 8,227,124 | BlackRock, Inc. | 31 Dec 2025 | |||
| VANGUARD PORTFOLIO MANAGEMENT LLC | 9% | $257,221,069 | 5,023,849 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| STATE STREET CORP | 6.1% | +20% | $141,276,294 | +$21,529,517 | 3,400,970 | +18% | STATE STREET CORPORATION | 31 Dec 2025 |
| WELLINGTON MANAGEMENT GROUP LLP | 6% | $183,011,023 | 3,356,153 | Wellington Management Group LLP | 31 Mar 2026 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 5.3% | $150,141,850 | 2,932,458 | Vanguard Capital Management | 31 Mar 2026 | |||
| Neuberger Berman Group LLC | 4.5% | $179,392,701 | 2,521,331 | Neuberger Berman Group LLC | 31 May 2026 |
As of 31 Mar 2026, 303 institutional investors reported holding 63,444,325 shares of POWER INTEGRATIONS INC - COMMON (POWI). This represents 113% of the company’s total 56,029,578 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
89%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | 8,521,749 | +0.12% | 0.01% | $436,313,550 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 8.9% | 4,975,859 | 0% | 0.01% | $254,763,981 |
| NEUBERGER BERMAN GROUP LLC | 7% | 3,933,099 | -1% | 0.15% | $201,374,662 |
| WELLINGTON MANAGEMENT GROUP LLP | 6% | 3,356,153 | +38% | 0.03% | $171,835,034 |
| STATE STREET CORP | 5.5% | 3,077,843 | -9.5% | 0.01% | $157,585,562 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.5% | 2,506,919 | 0% | 0% | $128,354,253 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 4.2% | 2,380,677 | 0.4% | $121,890,662 | |
| SNYDER CAPITAL MANAGEMENT L P | 3.8% | 2,104,063 | +1.9% | 2.1% | $107,728,026 |
| DISCIPLINED GROWTH INVESTORS INC /MN | 3.5% | 1,959,172 | -2.1% | 2.1% | $100,309,606 |
| GEODE CAPITAL MANAGEMENT, LLC | 3% | 1,674,825 | +4.4% | 0.01% | $85,763,796 |
| MORGAN STANLEY | 2.7% | 1,501,960 | +1.5% | 0% | $76,900,427 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.5% | 1,396,483 | +48% | 0.01% | $71,501,000 |
| Copeland Capital Management, LLC | 2.4% | 1,321,789 | +13% | 1.5% | $67,675,608 |
| JPMORGAN CHASE & CO | 2.3% | 1,293,375 | -22% | 0% | $61,926,796 |
| Capital International Investors | 2% | 1,112,390 | -12% | 0.01% | $56,954,368 |
| DIMENSIONAL FUND ADVISORS LP | 1.9% | 1,057,155 | +7.3% | 0.01% | $54,114,351 |
| Nuveen, LLC | 1.9% | 1,048,153 | +687% | 0.01% | $53,665,433 |
| Hudson Bay Capital Management LP | 1.8% | 1,000,000 | 0.31% | $51,200,000 | |
| WESTWOOD HOLDINGS GROUP INC | 1.6% | 873,035 | -16% | 0.33% | $44,699,392 |
| Robeco Schweiz AG | 1.6% | 870,170 | +39% | 0.94% | $44,552,704 |
| NORTHERN TRUST CORP | 1.5% | 841,551 | +2% | 0.01% | $43,087,411 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.4% | 757,993 | +5.5% | 0.01% | $38,809,242 |
| Stephens Investment Management Group LLC | 1.3% | 745,169 | -0.37% | 0.52% | $38,152,653 |
| BROWN ADVISORY INC | 1.2% | 686,834 | -8.3% | 0.06% | $35,165,914 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1.1% | 638,210 | +6.7% | 0.04% | $32,676,352 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 63,444,325 | $3,242,128,674 | +$194,739,037 | $51.20 | 303 |
| 2025 Q4 | 59,649,697 | $2,120,385,730 | +$123,983,676 | $35.54 | 295 |
| 2025 Q3 | 55,850,124 | $2,245,100,198 | -$64,469,969 | $40.21 | 312 |
| 2025 Q2 | 56,461,449 | $3,156,232,645 | -$77,430,776 | $55.90 | 339 |
| 2025 Q1 | 57,939,224 | $2,926,080,977 | -$8,429,014 | $50.50 | 338 |
| 2024 Q4 | 57,698,174 | $3,560,071,626 | -$37,432,600 | $61.70 | 323 |
| 2024 Q3 | 58,234,279 | $3,733,716,941 | -$70,180,136 | $64.12 | 332 |
| 2024 Q2 | 58,810,178 | $4,127,040,782 | -$32,438,490 | $70.19 | 350 |
| 2024 Q1 | 59,060,570 | $4,225,486,430 | +$29,372,682 | $71.55 | 340 |
| 2023 Q4 | 58,457,601 | $4,805,261,583 | +$7,569,946 | $82.11 | 341 |
| 2023 Q3 | 57,847,557 | $4,414,421,004 | -$44,289,323 | $76.31 | 335 |
| 2023 Q2 | 58,218,364 | $5,510,690,470 | +$51,718,855 | $94.67 | 335 |
| 2023 Q1 | 57,693,354 | $4,881,515,101 | +$42,115,343 | $84.64 | 327 |
| 2022 Q4 | 57,341,789 | $4,112,413,501 | +$79,137,119 | $71.72 | 323 |
| 2022 Q3 | 56,855,838 | $3,654,479,643 | -$6,353,704 | $64.32 | 322 |
| 2022 Q2 | 56,766,859 | $4,258,573,281 | +$3,369,636 | $75.01 | 325 |
| 2022 Q1 | 56,998,045 | $5,283,245,285 | -$48,966,296 | $92.68 | 352 |
| 2021 Q4 | 57,493,690 | $5,337,151,169 | -$92,338,037 | $92.89 | 338 |
| 2021 Q3 | 58,362,790 | $5,774,143,053 | -$9,661,055 | $98.99 | 324 |
| 2021 Q2 | 58,423,429 | $4,792,562,426 | -$9,009,685 | $82.06 | 290 |
| 2021 Q1 | 58,654,698 | $4,777,352,432 | -$55,025,542 | $81.48 | 293 |
| 2020 Q4 | 59,435,147 | $4,866,509,890 | +$43,675,164 | $81.86 | 286 |
| 2020 Q3 | 59,260,255 | $3,282,991,144 | +$1,626,423,838 | $55.40 | 268 |
| 2020 Q2 | 29,687,182 | $3,506,462,289 | +$17,352,140 | $118.13 | 273 |
| 2020 Q1 | 29,661,756 | $2,621,343,168 | +$78,181,558 | $88.33 | 270 |