Back to WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

POWIPOWI
18 quarters

Position history for WILLIAM BLAIR INVESTMENT MANAGEMENT, LLCWILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's holdings in POWER INTEGRATIONS INC

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds 2.4M shares of POWI (POWER INTEGRATIONS INC), worth $199.5M as of 2026-Q2. The position was increased (+0.1% shares). POWI represents 0.6% of WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's portfolio.

Current Value

$199.5M

Current Shares

2.4M

Total Value Change

+$182.7M

Total Shares Change

+2.2M

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Increased
2.4M
+0.1%
$199.5M0.6%$83.76
43
2026-Q1
New
2.4M
-
$121.9M0.4%$48.00
50
2025-Q2
Exited
0
-100.0%
$00.0%$55.15
0
2025-Q1
Decreased
7,005
-31.2%
$353,7530.0%$50.22
0
2024-Q4
Decreased
10,188
-0.8%
$628,6000.0%$60.67
0
2024-Q3
Increased
10,268
+25.4%
$658,3840.0%$62.21
30
2024-Q2
Decreased
8,190
-97.2%
$574,8560.0%$68.48
0
2024-Q1
Increased
295,981
+3.4%
$21.2M0.1%$69.62
29
2023-Q4
Increased
286,185
+14.3%
$23.5M0.1%$79.67
33
2023-Q3
Increased
250,477
+24.9%
$19.1M0.1%$73.85
35
2023-Q2
Decreased
200,474
-6.1%
$19M0.1%$90.13
0
2023-Q1
Increased
213,577
+39.4%
$18.1M0.1%$80.25
37
2022-Q4
Increased
153,175
+2.3%
$11M0.0%$68.94
28
2022-Q3
Decreased
149,776
-64.0%
$9.6M0.0%$62.93
0
2022-Q2
Decreased
415,747
-9.8%
$31.2M0.1%$72.14
0
2022-Q1
Increased
460,921
+20.9%
$42.7M0.1%$90.19
42
2021-Q4
Increased
381,203
+124.0%
$35.4M0.1%$88.30
47
2021-Q3
New
170,219
-
$16.9M0.0%$94.98
39

Other major holders of POWI: BNP PARIBAS FINANCIAL MARKETS, BlackRock, Inc., BlackRock Finance, Inc.

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