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STM in the 13F filings

Stmicroelectronics N V · CUSIP 861012102

Sector · SemiconductorsTheme · AI infrastructure and semiconductors· L3VLUP-definedTheme · Semiconductors
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2025
the date the book describes
Filed
21 May 2025
latest of these filings; the earliest 12 May 2025
Managers listing it
9
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q4 2024 and Q1 2025; 7 listed it in both
Shares listed
21,003,678
combined, among listed positions
Reported value
$461m
combined, at the quarter end

Among the 95 comparable managers: 7 buyers (opened or added shares) and 3 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing STM in Q1 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

9 of 9 holders

ActionFiling
Acadian Asset Management LLC5,650,244$124m0.35%Added+3,375,42821 May 2025 (the filing on sec.gov)
Voloridge Investment Management LLC4,336,012$95m0.35%Added+1,005,39615 May 2025 (the filing on sec.gov)
Two Sigma Investments LP3,928,586$86m0.18%Trimmed-546,79815 May 2025 (the filing on sec.gov)
Woodline Partners LP2,991,530$66m0.43%Trimmed-54,29715 May 2025 (the filing on sec.gov)
Two Sigma Advisers LP2,529,000$56m0.13%Added+642,30015 May 2025 (the filing on sec.gov)
Tudor Investment Corp576,009$13munder 0.1%Addedn.a.15 May 2025 (the filing on sec.gov)
Freestone Grove Partners LP527,977$12m0.12%Added+313,61115 May 2025 (the filing on sec.gov)
Walleye Capital LLC411,428$9.0munder 0.1%Addedn.a.14 May 2025 (the filing on sec.gov)
Capital Research Global Investors52,892$1.2munder 0.1%Added+3,05212 May 2025 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2024 to Q1 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 (0)

No new position among listed positions.

Exited (1)

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 26 in Q2 2026

Tracked managers listing it, at least.

010203020152017201820192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
STM by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20131$16mn.a.n.a.
Q3 20141$79kn.a.n.a.
Q1 20151$13mn.a.n.a.
Q2 20151$5.4mn.a.n.a.
Q3 20161$40mn.a.n.a.
Q4 20161$5.9mn.a.n.a.
Q1 20175$265mn.a.n.a.
Q2 20173$181mn.a.n.a.
Q3 20174$259mn.a.n.a.
Q4 20175$323mn.a.n.a.
Q1 20184$122mn.a.n.a.
Q2 20185$134mn.a.n.a.
Q3 20183$70mn.a.n.a.
Q4 20183$93mn.a.n.a.
Q1 20192$68mn.a.n.a.
Q2 20193$70mn.a.n.a.
Q3 20191$57mn.a.n.a.
Q4 20195$114mn.a.n.a.
Q1 20204$55mn.a.n.a.
Q2 20203$10mn.a.n.a.
Q3 20205$47mn.a.n.a.
Q4 20203$77mn.a.n.a.
Q1 20216$203mn.a.n.a.
Q2 20214$126mn.a.n.a.
Q3 20211$14mn.a.n.a.
Q4 20215$168mn.a.n.a.
Q1 20229$156mn.a.n.a.
Q2 20223$137mn.a.n.a.
Q3 20228$551mn.a.n.a.
Q4 20226$210mn.a.n.a.
Q1 202312$625mn.a.n.a.
Q2 20239$360mn.a.n.a.
Q3 20239$402mn.a.n.a.
Q4 20234$74m33
Q1 20245$220m42
Q2 20247$243m53
Q3 20246$406m60
Q4 20249$432m62
Q1 20259$461m73
Q2 20259$286m54
Q3 20257$247m54
Q4 20256$246m814
Q1 202610$715m167
Q2 202626$2.8bn299

Compare with…

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

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

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 STM, latest filings →Back to the 13F Explorer →