POWER INTEGRATIONS INC - COMMON STOCK (POWI) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / COMMON STOCK
Symbol
POWI on Nasdaq
Shares outstanding
56,523,255
Price per share
$35.54
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
56,121,324
Total reported value
$2,256,099,891
% of total 13F portfolios
0%
Share change
-313,149
Value change
-$54,215,999
Number of holders
306
Price from insider filings
$35.54
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

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
STATE STREET CORP 5.1% $115,912,804 2,882,686 STATE STREET CORPORATION 30 Sep 2025

As of 30 Sep 2025, 306 institutional investors reported holding 56,121,324 shares of POWER INTEGRATIONS INC - COMMON STOCK (POWI). This represents 99% of the company’s total 56,523,255 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of POWER INTEGRATIONS INC - COMMON STOCK (POWI) together control 76% 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
VANGUARD GROUP INC 13% 7,147,276 +0.02% 0% $287,391,968
BlackRock, Inc. 12% 7,036,151 -4.9% 0% $282,923,640
NEUBERGER BERMAN GROUP LLC 7.4% 4,188,254 +5.1% 0.12% $168,409,700
STATE STREET CORP 5.1% 2,882,686 +8.2% 0% $115,912,804
WELLINGTON MANAGEMENT GROUP LLP 4% 2,261,281 +36% 0.02% $90,926,109
DISCIPLINED GROWTH INVESTORS INC /MN 3.5% 1,966,940 -4.6% 1.4% $79,090,657
JPMORGAN CHASE & CO 2.9% 1,666,492 -2.2% 0% $67,009,648
GEODE CAPITAL MANAGEMENT, LLC 2.9% 1,652,450 +0.61% 0% $66,452,338
MORGAN STANLEY 2.6% 1,458,937 +6.3% 0% $58,663,912
Copeland Capital Management, LLC 2.3% 1,276,860 +7.2% 1.1% $51,342,575
Capital International Investors 2.2% 1,264,962 -0.02% 0.01% $50,864,122
DIMENSIONAL FUND ADVISORS LP 1.8% 1,029,901 +1.3% 0.01% $41,408,216
NORTHERN TRUST CORP 1.8% 998,630 -0.43% 0.01% $40,154,913
BROWN ADVISORY INC 1.5% 844,314 +0.91% 0.04% $33,949,867
SNYDER CAPITAL MANAGEMENT L P 1.5% 829,726 +3.4% 0.63% $33,363,282
Stephens Investment Management Group LLC 1.3% 726,308 -3.2% 0.38% $29,204,845
BANK OF AMERICA CORP /DE/ 1.3% 723,281 +66% 0% $29,083,135
Boston Trust Walden Corp 1.2% 703,240 -1.5% 0.21% $28,277,280
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.2% 668,216 +1.3% 0% $26,868,965
D. E. Shaw & Co., Inc. 1.2% 654,574 +64% 0.02% $26,320,421
Robeco Schweiz AG 1.1% 625,238 -3.1% 0.57% $25,140,820
Tributary Capital Management, LLC 1.1% 605,412 +91% 1.2% $24,343,616
CONGRESS ASSET MANAGEMENT CO 1.1% 593,599 -17% 0.16% $23,868,626
GOLDMAN SACHS GROUP INC 0.83% 469,750 +7.8% 0% $18,888,657
Fiera Capital Corp 0.79% 449,344 -2.2% 0.06% $18,068,122

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
2025 Q4 440,818 $15,730,176 -$24,477,665 $35.54 12
2025 Q3 56,121,324 $2,256,099,891 -$54,215,999 $40.21 306
2025 Q2 56,461,449 $3,156,232,645 -$77,430,774 $55.90 339
2025 Q1 57,933,669 $2,925,800,310 -$8,493,873 $50.50 337
2024 Q4 57,681,840 $3,559,064,019 -$1,678,001 $61.70 321
2024 Q3 57,638,453 $3,695,512,409 -$110,513,121 $64.12 329
2024 Q2 58,790,128 $4,125,633,142 +$258,690 $70.19 348
2024 Q1 58,584,429 $4,192,274,230 +$4,738,446 $71.55 338
2023 Q4 3,541,975 $290,831,581 +$3,953,103 $82.11 3
2023 Q3 57,438,687 $4,383,220,389 -$34,771,545 $76.31 333
2023 Q2 57,731,283 $5,464,578,912 +$13,336,061 $94.67 333
2023 Q1 56,197,336 $4,754,893,044 +$42,560,843 $84.64 324
2022 Q4 57,245,110 $4,105,163,068 +$59,626,736 $71.72 319
2022 Q3 55,614,436 $3,574,631,807 +$27,198,563 $64.32 318
2022 Q2 55,592,522 $4,160,040,736 +$1,176,506 $75.01 321
2022 Q1 56,421,241 $5,229,789,285 -$30,817,833 $92.68 348
2021 Q4 53,259,236 $4,946,487,169 -$73,695,589 $92.89 333
2021 Q3 54,013,963 $5,346,945,667 +$5,162,657 $98.99 320
2021 Q2 54,505,591 $4,474,258,277 -$6,031,482 $82.06 291
2021 Q1 52,226,111 $4,254,993,291 -$34,462,427 $81.48 291
2020 Q4 54,606,005 $4,472,136,423 +$73,789,273 $81.86 280
2020 Q3 53,058,507 $2,939,775,380 +$1,446,372,294 $55.40 259
2020 Q2 29,288,307 $3,459,345,209 +$22,464,429 $118.13 269
2020 Q1 29,593,106 $2,614,952,448 +$75,341,778 $88.33 264
2019 Q4 28,745,704 $2,843,161,907 +$3,992,738 $98.91 244
2019 Q3 28,783,570 $2,602,304,242 +$5,811,245 $90.43 222
2019 Q2 27,956,836 $2,239,947,551 +$33,355,604 $80.18 203
2019 Q1 28,643,731 $2,003,453,778 -$55,711,863 $69.94 206
2018 Q4 29,261,395 $1,784,080,874 +$11,883,374 $60.98 196
2018 Q3 29,151,072 $1,841,780,293 -$9,430,112 $63.20 204
2018 Q2 29,426,012 $2,150,457,258 +$57,703,292 $73.05 212
2018 Q1 28,882,739 $1,974,108,885 +$10,989,300 $68.35 206
2017 Q4 28,829,564 $2,120,604,407 -$52,393,419 $73.55 238
2017 Q3 29,374,321 $2,150,526,278 +$57,526,525 $73.20 211
2017 Q2 28,323,089 $2,064,899,664 -$3,559,474 $72.90 224
2017 Q1 28,772,430 $1,890,999,167 +$213,306,543 $65.75 212
2016 Q4 28,423,594 $1,927,935,265 -$5,800,632 $67.85 226
2016 Q3 28,525,687 $1,796,932,702 +$16,449,889 $63.03 205
2016 Q2 28,413,380 $1,422,425,067 +$63,100,468 $50.07 203
2016 Q1 27,971,208 $1,387,399,596 +$18,281,804 $49.66 183
2015 Q4 27,401,109 $1,332,837,991 -$39,310,803 $48.63 183
2015 Q3 28,283,840 $1,192,530,127 -$8,014,365 $42.17 178
2015 Q2 28,080,759 $1,266,037,000 -$68,637,252 $45.18 188
2015 Q1 30,274,839 $1,576,190,472 +$45,940,377 $52.08 185
2014 Q4 29,466,008 $1,524,865,833 -$40,917,249 $51.74 182
2014 Q3 30,201,332 $1,628,127,363 -$52,242,410 $53.91 187
2014 Q2 30,835,273 $1,774,219,330 -$19,632,082 $57.54 193
2014 Q1 30,811,614 $2,026,285,638 +$98,249,563 $65.78 193