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POWI in the 13F filings

Power Integrations Inc · CUSIP 739276103

Sector · SemiconductorsTheme · AI infrastructure and semiconductors· L3VLUP-definedTheme · Semiconductors
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 10 Feb 2026
Managers listing it
22
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 4 listed it in both
Shares listed
9,569,905
combined, among listed positions
Reported value
$340m
combined, at the quarter end

Among the 92 comparable managers: 10 buyers (opened or added shares) and 20 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -600,847.

Managers listing POWI in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

22 of 22 holders

ActionFiling
Neuberger Berman Group LLC3,973,057$141m0.11%Trimmed-215,19727 Oct 2026 (the filing on sec.gov)
Wellington Management Group LLP2,423,972$86munder 0.1%Added+162,69117 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc943,365$34munder 0.1%Added+895,85717 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP493,708$18munder 0.1%Added+78,96813 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC441,559$16m0.06%Added+30,76217 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC284,360$10munder 0.1%Trimmed-44,81717 Feb 2026 (the filing on sec.gov)
Invesco Ltd242,853$8.6munder 0.1%Added+108,59919 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC206,100$7.3munder 0.1%Trimmed-14,30012 Feb 2026 (the filing on sec.gov)
Millennium Management LLC106,559$3.8munder 0.1%Trimmed-41,70617 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP96,514$3.4munder 0.1%Added+70,97217 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.87,212$3.1munder 0.1%Trimmed-567,36217 Feb 2026 (the filing on sec.gov)
Holocene Advisors LP73,635$2.6munder 0.1%Trimmed-11,37117 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP65,518$2.3munder 0.1%Trimmed-47,95917 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd26,114$928kunder 0.1%Held017 Feb 2026 (the filing on sec.gov)
Quantbot Technologies LP24,215$861kunder 0.1%Trimmed-106,21710 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP22,500$800kunder 0.1%Added+6,10017 Feb 2026 (the filing on sec.gov)
Winton Group Ltd20,266$720kunder 0.1%Newnew11 Feb 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP11,948$425kunder 0.1%Added+2,61917 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC8,806$313kunder 0.1%Trimmed-21,06217 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)7,331$261kunder 0.1%Trimmed-29,10517 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP6,604$235kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Acadian Asset Management LLC3,709$131kunder 0.1%Trimmed-3,52310 Feb 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (9)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
6 in Q3 2024 to 3 in Q2 2026

Tracked managers listing it, at least.

024682014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
POWI by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20133$127mn.a.n.a.
Q3 20134$226mn.a.n.a.
Q4 20135$229mn.a.n.a.
Q1 20145$384mn.a.n.a.
Q2 20142$167mn.a.n.a.
Q3 20142$174mn.a.n.a.
Q4 20142$175mn.a.n.a.
Q1 20153$179mn.a.n.a.
Q2 20152$152mn.a.n.a.
Q3 20152$142mn.a.n.a.
Q4 20153$153mn.a.n.a.
Q1 20162$151mn.a.n.a.
Q2 20163$155mn.a.n.a.
Q3 20162$184mn.a.n.a.
Q4 20162$198mn.a.n.a.
Q1 20172$205mn.a.n.a.
Q2 20171$204mn.a.n.a.
Q3 20171$214mn.a.n.a.
Q4 20172$220mn.a.n.a.
Q1 20182$199mn.a.n.a.
Q2 20182$212mn.a.n.a.
Q3 20182$186mn.a.n.a.
Q4 20182$184mn.a.n.a.
Q1 20192$206mn.a.n.a.
Q2 20192$230mn.a.n.a.
Q3 20192$255mn.a.n.a.
Q4 20192$272mn.a.n.a.
Q1 20205$234mn.a.n.a.
Q2 20203$409mn.a.n.a.
Q3 20203$268mn.a.n.a.
Q4 20204$684mn.a.n.a.
Q1 20213$525mn.a.n.a.
Q2 20214$529mn.a.n.a.
Q3 20215$838mn.a.n.a.
Q4 20216$623mn.a.n.a.
Q1 20226$593mn.a.n.a.
Q2 20226$475mn.a.n.a.
Q3 20228$448mn.a.n.a.
Q4 20225$475mn.a.n.a.
Q1 20236$518mn.a.n.a.
Q2 20235$518mn.a.n.a.
Q3 20234$427mn.a.n.a.
Q4 20234$437m22
Q1 20246$400m51
Q2 20247$412m52
Q3 20246$429m60
Q4 20243$404m21
Q1 20252$199m20
Q2 20253$241m30
Q3 20254$194m40
Q4 20253$160m1020
Q1 20264$429m1112
Q2 20263$535m1611

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

POWI and NVDA →POWI and AVGO →POWI and MU →Choose a stock to compare with POWI →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own POWI, latest filings →Back to the 13F Explorer →