Security Snapshot

POWER INTEGRATIONS INC - Common Stock (POWI) Institutional Ownership

CUSIP: 739276103

13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026

Latest Period

Q4 2025

Institutions Reporting

295

Shares (Excl. Options)

59,649,697

Price

$35.54

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Type / Class
Equity / Common Stock
Symbol
POWI on Nasdaq
Shares outstanding
55,512,144
Price per share
$51.20
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
59,649,697
Total reported value
$2,120,385,730
% of total 13F portfolios
0%
Share change
+3,900,031
Value change
+$123,983,797
Number of holders
295
Price from insider filings
$51.20
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Quick Takeaways

  • POWI - POWER INTEGRATIONS INC - Common Stock is tracked under CUSIP 739276103.
  • 295 institutions reported positions in Q4 2025.
  • 3 significant owners is listed from Schedule 13D/13G reporting.

What Changed

  • Holder count moved from 295 to 62 between Q4 2025 and Q1 2026.
  • Reported value moved from $2,120,385,730 to $125,598,239.

Why This Matters

  • 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.

Source Evidence

Source: SEC Form 13F

Latest holder context comes from 295 institutions filings for Q4 2025.

Open SEC Evidence

Investment Quick Answers

What is CUSIP 739276103?
CUSIP 739276103 identifies POWI - POWER INTEGRATIONS INC - Common Stock in SEC 13F datasets.

Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.

Significant Owners of POWER INTEGRATIONS INC - Common Stock (POWI) based on Schedule 13D/G filings

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

As of 31 Dec 2025, 295 institutional investors reported holding 59,649,697 shares of POWER INTEGRATIONS INC - Common Stock (POWI). This represents 107% of the company’s total 55,512,144 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of POWER INTEGRATIONS INC - Common Stock (POWI) together control 84% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 15% 8,511,304 +21% 0.01% $302,491,734
VANGUARD GROUP INC 14% 7,556,919 +5.7% 0% $268,572,901
NEUBERGER BERMAN GROUP LLC 7.2% 3,973,057 -5.1% 0.11% $141,202,453
STATE STREET CORP 6.1% 3,400,970 +18% 0% $120,870,474
WELLINGTON MANAGEMENT GROUP LLP 4.4% 2,423,972 +7.2% 0.02% $86,147,964
SNYDER CAPITAL MANAGEMENT L P 3.7% 2,064,707 +149% 1.4% $73,379,687
DISCIPLINED GROWTH INVESTORS INC /MN 3.6% 2,001,698 +1.8% 1.4% $71,140,347
JPMORGAN CHASE & CO 3% 1,659,643 -0.41% 0% $58,983,713
GEODE CAPITAL MANAGEMENT, LLC 2.9% 1,603,683 -3% 0% $57,002,643
MORGAN STANLEY 2.7% 1,479,554 +1.4% 0% $52,583,405
Capital International Investors 2.3% 1,264,369 -0.05% 0.01% $44,935,674
Copeland Capital Management, LLC 2.1% 1,173,907 -8.1% 0.93% $41,720,723
WESTWOOD HOLDINGS GROUP INC 1.9% 1,037,517 0.3% $36,873,354
DIMENSIONAL FUND ADVISORS LP 1.8% 985,227 -4.3% 0.01% $35,016,409
PRICE T ROWE ASSOCIATES INC /MD/ 1.7% 943,365 +1886% 0% $33,528,000
NORTHERN TRUST CORP 1.5% 824,990 -17% 0% $29,320,144
BROWN ADVISORY INC 1.3% 749,127 -11% 0.04% $26,623,980
Stephens Investment Management Group LLC 1.3% 747,929 +3% 0.35% $26,581,397
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.3% 718,405 +7.5% 0% $25,532,114
NOMURA HOLDINGS INC 1.2% 654,046 0.18% $23,244,795
Boston Trust Walden Corp 1.2% 646,744 -8% 0.17% $22,985,282
Robeco Schweiz AG 1.1% 627,474 +0.36% 0.5% $22,300,426
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 1.1% 597,875 +38% 0.02% $21,249,000
BANK OF AMERICA CORP /DE/ 1.1% 594,835 -18% 0% $21,140,418
MARSHALL WACE, LLP 0.89% 493,708 +19% 0.02% $17,546,384

Institutional Holders of POWER INTEGRATIONS INC - Common Stock (POWI) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 2,452,900 $125,598,239 +$376,839 $51.20 62
2025 Q4 59,649,697 $2,120,385,730 +$123,983,797 $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
2019 Q4 28,745,771 $2,843,167,753 +$3,885,120 $98.91 247
2019 Q3 28,809,315 $2,604,631,785 +$9,051,261 $90.43 226
2019 Q2 28,721,328 $2,299,045,551 -$4,331,222 $80.18 209
2019 Q1 28,942,125 $2,024,328,778 -$55,794,139 $69.94 211
2018 Q4 29,682,170 $1,809,738,874 +$13,102,488 $60.98 200
2018 Q3 29,436,257 $1,859,620,293 -$11,138,722 $63.20 211
2018 Q2 29,440,140 $2,151,489,258 +$21,407,810 $73.05 214
2018 Q1 29,078,264 $1,987,517,885 +$12,921,607 $68.35 210
2017 Q4 28,829,564 $2,120,604,407 -$52,722,429 $73.55 238
2017 Q3 29,374,448 $2,150,534,278 +$56,936,787 $73.20 213
2017 Q2 28,671,269 $2,090,560,664 -$3,692,407 $72.90 227
2017 Q1 28,795,290 $1,892,501,167 +$231,017,138 $65.75 214
2016 Q4 28,449,600 $1,930,278,682 -$4,448,345 $67.85 230
2016 Q3 28,561,593 $1,799,193,702 +$16,566,288 $63.03 210
2016 Q2 28,466,776 $1,425,305,067 +$62,607,332 $50.07 206
2016 Q1 28,056,514 $1,391,530,596 +$19,293,440 $49.66 187
2015 Q4 27,659,869 $1,345,421,991 -$38,948,050 $48.63 186
2015 Q3 28,512,737 $1,202,181,127 -$723,282 $42.17 179
2015 Q2 28,724,626 $1,295,127,000 -$71,124,457 $45.18 189
2015 Q1 30,274,839 $1,576,190,472 +$45,768,567 $52.08 183
2014 Q4 29,466,008 $1,524,865,833 -$40,917,278 $51.74 182
2014 Q3 30,201,332 $1,628,127,363 -$52,746,094 $53.91 186
2014 Q2 31,118,087 $1,790,491,330 -$11,154,438 $57.54 192
2014 Q1 30,931,370 $2,034,163,638 +$97,346,445 $65.78 192
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