Who owns STMicroelectronics (STM)
Which tracked institutional funds hold STM, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See STM company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on STM is one-sided between 2025-Q4 and 2026-Q1: 132 added or opened and 33 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
STM’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.1pp gap the other way — the median holder sizes STM more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in STM divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 390 tracked filers holding STM, 244 increased or opened the position and 121 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in STM between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 35
- Analog Century Management LP$81M
- Hill City Capital, LP$79M
- BALYASNY ASSET MANAGEMENT L.P.$72M
- JANE STREET GROUP, LLC$41M
- Alyeska Investment Group, L.P.$33M
- Nishkama Capital, LLC$29M
Full exits 11
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$36M
- TWO SIGMA ADVISERS, LP$15M
- TORONTO DOMINION BANK$5M
- Maxi Investments CY Ltd$2M
- Jump Financial, LLC$2M
- Quantbot Technologies LP$2M
Largest adds
- CITADEL ADVISORS LLC$200M
- MILLENNIUM MANAGEMENT LLC$136M
- VAN ECK ASSOCIATES CORP$130M
- Slate Path Capital LP$75M
- Duquesne Family Office LLC$70M
- BNP PARIBAS FINANCIAL MARKETS$41M
Largest trims
- BlackRock, Inc.$44M
- JPMORGAN CHASE & CO$39M
- Woodline Partners LP$27M
- ACADIAN ASSET MANAGEMENT LLC$20M
- M&T Bank Corp$17M
- NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$16M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 6,549,709 | $491M | 9.0% | 2026-Q2 |
| VAN ECK ASSOCIATES CORP added | 11,657,593 | $403M | 7.4% | 2026-Q1 |
| Invesco Ltd. added | 4,745,181 | $355M | 6.5% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 3,852,113 | $288M | 5.3% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 3,104,441 | $232M | 4.3% | 2026-Q2 |
| Duquesne Family Office LLC added | 3,102,880 | $232M | 4.3% | 2026-Q2 |
| Slate Path Capital LP added | 6,125,400 | $212M | 3.9% | 2026-Q1 |
| MORGAN STANLEY trimmed | 5,345,195 | $185M | 3.4% | 2026-Q1 |
| Sachem Head Capital Management LP new | 2,200,000 | $165M | 3.0% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ new | 2,158,025 | $162M | 3.0% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 4,271,819 | $148M | 2.7% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 1,946,604 | $146M | 2.7% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 1,757,357 | $132M | 2.4% | 2026-Q2 |
| FMR LLC added | 1,734,640 | $130M | 2.4% | 2026-Q2 |
| FIL Ltd trimmed | 2,960,549 | $102M | 1.9% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 2,936,396 | $101M | 1.9% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 1,280,586 | $96M | 1.8% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 1,235,078 | $92M | 1.7% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 2,452,556 | $85M | 1.6% | 2026-Q1 |
| Analog Century Management LP trimmed | 2,334,005 | $81M | 1.5% | 2026-Q1 |
| Hill City Capital, LP new | 2,300,000 | $79M | 1.5% | 2026-Q1 |
| UBS Group AG added | 2,085,343 | $72M | 1.3% | 2026-Q1 |
| Verition Fund Management LLC added | 818,263 | $61M | 1.1% | 2026-Q2 |
| Grantham, Mayo, Van Otterloo & Co. LLC trimmed | 781,931 | $59M | 1.1% | 2026-Q2 |
| Penserra Capital Management LLC added | 1,598,610 | $55M | 1.0% | 2026-Q1 |
| Defiance ETFs, LLC added | 1,598,559 | $55M | 1.0% | 2026-Q1 |
| BARCLAYS PLC added | 1,521,906 | $53M | 1.0% | 2026-Q1 |
| CITIGROUP INC added | 1,434,414 | $50M | 0.9% | 2026-Q1 |
| Rafferty Asset Management, LLC trimmed | 1,404,428 | $49M | 0.9% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 1,533,619 | $48M | 0.9% | 2026-Q1 |
| GLENVIEW CAPITAL MANAGEMENT, LLC new | 560,060 | $42M | 0.8% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 1,199,926 | $41M | 0.8% | 2026-Q1 |
| BRANDES INVESTMENT PARTNERS, LP trimmed | 1,098,931 | $38M | 0.7% | 2026-Q1 |
| Alyeska Investment Group, L.P. new | 956,414 | $33M | 0.6% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 428,683 | $32M | 0.6% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 918,591 | $32M | 0.6% | 2026-Q1 |
| Nishkama Capital, LLC new | 838,700 | $29M | 0.5% | 2026-Q1 |
| ExodusPoint Capital Management, LP trimmed | 349,653 | $26M | 0.5% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 332,974 | $25M | 0.5% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 679,305 | $23M | 0.4% | 2026-Q1 |
| Woodline Partners LP trimmed | 671,123 | $23M | 0.4% | 2026-Q1 |
| MACKENZIE FINANCIAL CORP added | 634,605 | $22M | 0.4% | 2026-Q1 |
| NORTHERN TRUST CORP added | 614,900 | $21M | 0.4% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 609,673 | $21M | 0.4% | 2026-Q1 |
| Talos Eurisko Asset Management LP new | 592,300 | $20M | 0.4% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE new | 553,742 | $19M | 0.4% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 550,800 | $19M | 0.3% | 2026-Q1 |
| Hardman Johnston Global Advisors LLC added | 542,045 | $19M | 0.3% | 2026-Q1 |
| Robeco Schweiz AG trimmed | 528,398 | $18M | 0.3% | 2026-Q1 |
| Strategic Wealth Partners, Ltd. added | 477,129 | $16M | 0.3% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 196,495 | $15M | 0.3% | 2026-Q2 |
| Tidal Investments LLC added | 417,052 | $14M | 0.3% | 2026-Q1 |
| BEACONLIGHT CAPITAL, LLC added | 384,477 | $13M | 0.2% | 2026-Q1 |
| Walleye Capital LLC added | 380,676 | $13M | 0.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 366,782 | $13M | 0.2% | 2026-Q1 |
| WCM INVESTMENT MANAGEMENT, LLC new | 152,034 | $11M | 0.2% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC trimmed | 149,784 | $11M | 0.2% | 2026-Q2 |
| MMCAP International Inc. SPC new | 309,925 | $11M | 0.2% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC trimmed | 299,164 | $10M | 0.2% | 2026-Q1 |
| Foresight Global Investors, Inc. trimmed | 296,916 | $10M | 0.2% | 2026-Q1 |
| Quantinno Capital Management LP added | 277,370 | $10M | 0.2% | 2026-Q1 |
| Maytus Capital Management, LLC added | 268,713 | $9M | 0.2% | 2026-Q1 |
| Creative Planning added | 264,918 | $9M | 0.2% | 2026-Q1 |
| SORA INVESTORS LLC new | 250,000 | $9M | 0.2% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 249,104 | $9M | 0.2% | 2026-Q1 |
| Jain Global LLC added | 236,859 | $8M | 0.2% | 2026-Q1 |
| PNC FINANCIAL SERVICES GROUP, INC. added | 228,674 | $8M | 0.1% | 2026-Q1 |
| STATE STREET CORP trimmed | 105,070 | $8M | 0.1% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 213,382 | $7M | 0.1% | 2026-Q1 |
| J. Goldman & Co LP added | 212,045 | $7M | 0.1% | 2026-Q1 |
| LPL Financial LLC added | 204,629 | $7M | 0.1% | 2026-Q1 |
| Hidden Lake Asset Management LP new | 191,750 | $7M | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP added | 183,977 | $6M | 0.1% | 2026-Q1 |
| SG Americas Securities, LLC added | 157,971 | $5M | 0.1% | 2026-Q1 |
| Jefferies Financial Group Inc. new | 154,450 | $5M | 0.1% | 2026-Q1 |
| Boston Partners new | 148,507 | $5M | 0.1% | 2026-Q1 |
| Modera Wealth Management, LLC trimmed | 144,489 | $5M | 0.1% | 2026-Q1 |
| AZZAD ASSET MANAGEMENT INC /ADV trimmed | 135,931 | $5M | 0.1% | 2026-Q1 |
| Optiver Holding B.V. trimmed | 131,173 | $5M | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 126,479 | $4M | 0.1% | 2026-Q1 |
| SALT Holding Corp. added | 125,900 | $4M | 0.1% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 124,017 | $4M | 0.1% | 2026-Q1 |
| Voleon Capital Management LP trimmed | 122,220 | $4M | 0.1% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 120,696 | $4M | 0.1% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 114,647 | $4M | 0.1% | 2026-Q1 |
| Junto Capital Management LP added | 2,193,416 | $67M | 1.2% | 2025-Q2 stale |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 1,397,239 | $36M | 0.7% | 2025-Q4 stale |
| Shellback Capital, LP new | 870,000 | $26M | 0.5% | 2025-Q2 stale |
| ABC ARBITRAGE SA added | 620,238 | $18M | 0.3% | 2025-Q3 stale |
| Freestone Grove Partners LP trimmed | 527,077 | $15M | 0.3% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP added | 562,500 | $15M | 0.3% | 2025-Q4 stale |
| Albar Capital Partners LLP new | 306,181 | $9M | 0.2% | 2025-Q2 stale |
| Cubist Systematic Strategies, LLC trimmed | 310,629 | $9M | 0.2% | 2025-Q3 stale |
| Atom Investors LP added | 223,373 | $7M | 0.1% | 2025-Q2 stale |
| Kodai Capital Management LP new | 303,258 | $7M | 0.1% | 2025-Q1 stale |
| TORONTO DOMINION BANK added | 203,246 | $5M | 0.1% | 2025-Q4 stale |
| UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO new | 164,359 | $5M | 0.1% | 2025-Q3 stale |
| OLD MISSION CAPITAL LLC new | 198,457 | $4M | 0.1% | 2025-Q1 stale |
| Parallax Volatility Advisers, L.P. trimmed | 182,684 | $4M | 0.1% | 2025-Q1 stale |
| ARDSLEY ADVISORY PARTNERS LP new | 130,000 | $4M | 0.1% | 2025-Q2 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.