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CONGRESS ASSET MANAGEMENT CO

Position in POWI — Power Integrations Inc

CIK 897378 BOSTON, MA

Position in POWI

as of Jun 30, 2026 · filed Jul 7, 2026
Position Value
$77,901,741
+$54,033,126 QoQ
Shares Held
930,059
+56.7% QoQ
Ownership
1.67%
of shares outstanding
% of Portfolio
0.48%
of 13F equity value
Holder Rank
#1
of 10 holders
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 94.40401092833895.ToString("F0")% Shared 3.1551761769952233.ToString("F0")% None 2.440812894665822.ToString("F0")%

Common Shares in POWI Over Time

Shares Held

Position Value (USD)

Position in Semiconductors

Technology · as of Jun 30, 2026

CONGRESS ASSET MANAGEMENT CO holds $1,561,377,340 across 13 Semiconductors names. POWI ranks #8 (5.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 POWI
Power Integrations Inc
This page
930,059 $77,901,741

All Filings in POWI

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24 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $77,901,741 930,059
2025-09-30 $23,868,615 593,599
2025-06-30 $40,173,820 718,673
2025-03-31 $37,225,267 737,134
2024-12-31 $38,941,276 631,139
2024-09-30 $39,874,625 621,875
2024-06-30 $36,868,420 525,266
2024-03-31 $34,881,054 487,506
2023-12-31 $34,870,639 424,682
2023-09-30 $29,733,809 389,645
2023-06-30 $29,066,624 307,031
2023-03-31 $23,232,495 274,486
2022-12-31 $17,691,315 246,672
2022-09-30 $14,356,095 223,198
2022-06-30 $13,985,764 186,452
2022-03-31 $16,102,130 173,739
2021-12-31 $13,359,625 143,822
2021-09-30 $11,400,381 115,167
2021-06-30 $9,199,418 112,106
2021-03-31 $8,552,222 104,961
2020-12-31 $8,152,764 99,594
2020-09-30 $5,325,491 96,128
2020-06-30 $2,782,729 47,113
2020-03-31 $2,116,386 47,920