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Boston Trust Walden Corp

Position in POWI — Power Integrations Inc

CIK 1534866 BOSTON, MA

Position in POWI

as of Jun 30, 2026 · filed Jul 24, 2026
Position Value
$73,915,770
+$44,342,395 QoQ
Shares Held
882,471
+52.8% QoQ
Ownership
1.58%
of shares outstanding
% of Portfolio
0.58%
of 13F equity value
Holder Rank
#19
of 372 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 94% Shared 0% None 6%

Common Shares in POWI Over Time

Shares Held

Position Value (USD)

Position in Semiconductors

Technology · as of Jun 30, 2026

Boston Trust Walden Corp holds $516,785,952 across 11 Semiconductors names. POWI ranks #2 (14.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 POWI
Power Integrations Inc
This page
882,471 $73,915,770

All Filings in POWI

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $73,915,770 882,471
2026-03-31 $29,573,375 577,605
2025-12-31 $22,985,281 646,744
2025-09-30 $28,277,280 703,240
2025-06-30 $39,906,953 713,899
2025-03-31 $37,054,223 733,747
2024-12-31 $45,613,822 739,284
2024-09-30 $49,331,426 769,361
2024-06-30 $55,536,854 791,236
2024-03-31 $56,680,478 792,180
2023-12-31 $65,117,991 793,058
2023-09-30 $60,229,498 789,274
2023-06-30 $70,044,249 739,878
2023-03-31 $60,827,382 718,660
2022-12-31 $49,713,219 693,157
2022-09-30 $44,938,197 698,666
2022-06-30 $50,646,751 675,200
2022-03-31 $57,455,390 619,933
2021-12-31 $46,592,602 501,589
2021-09-30 $49,254,354 497,569
2021-06-30 $39,849,812 485,618
2021-03-31 $40,858,471 501,454
2020-12-31 $41,178,444 503,035
2020-09-30 $27,757,062 501,030
2020-06-30 $28,382,031 240,261
2020-03-31 $19,163,546 216,954