Who owns CSAN (CSAN)
Which tracked institutional funds hold CSAN, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See CSAN company fundamentals →
Ownership as of the 2026-Q1 13F filings. 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
11 tracked funds added or opened CSAN while 10 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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
CSAN’s largest tracked holder by dollar value, RENAISSANCE TECHNOLOGIES LLC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in CSAN 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 74 tracked filers holding CSAN, 41 increased or opened the position and 44 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 CSAN 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 5
- TWO SIGMA INVESTMENTS, LP$2M
- CITADEL ADVISORS LLC$2M
- BTG Pactual Asset Management US LLC$1M
- D. E. Shaw & Co., Inc.$892K
- MATAURO, LLC$685K
Full exits 1
- LMR Partners LLP$1M
Largest adds
- MARSHALL WACE, LLP$6M
- Monaco Asset Management SAM$2M
- MORGAN STANLEY$1M
- JANE STREET GROUP, LLC$762K
- Patriot Financial Group Insurance Agency, LLC$404K
- Aquamarine Financial (Cayman) Ltd$356K
Largest trims
- UBS Group AG$10M
- BALYASNY ASSET MANAGEMENT L.P.$3M
- XTX Topco Ltd$1M
- Tejara Capital Ltd$1M
- HRT FINANCIAL LP$628K
- MILLENNIUM MANAGEMENT LLC$427K
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 |
|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC trimmed | 3,810,669 | $16M | 14.2% | 2026-Q1 |
| Monaco Asset Management SAM added | 3,334,813 | $14M | 12.4% | 2026-Q1 |
| MARSHALL WACE, LLP added | 2,323,610 | $10M | 8.6% | 2026-Q1 |
| Aquamarine Financial (Cayman) Ltd | 2,096,904 | $9M | 7.8% | 2026-Q1 |
| MORGAN STANLEY added | 1,347,320 | $6M | 5.0% | 2026-Q1 |
| UBS Group AG trimmed | 863,438 | $4M | 3.2% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 596,565 | $2M | 2.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 502,054 | $2M | 1.9% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 390,158 | $2M | 1.5% | 2026-Q1 |
| Massar Capital Management, LP | 300,172 | $1M | 1.1% | 2026-Q1 |
| Naman Capital Ltda | 271,941 | $1M | 1.0% | 2026-Q1 |
| BTG Pactual Asset Management US LLC | 247,680 | $1M | 0.9% | 2026-Q1 |
| XTX Topco Ltd trimmed | 237,344 | $978K | 0.9% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 216,527 | $892K | 0.8% | 2026-Q1 |
| SG Americas Securities, LLC added | 196,491 | $810K | 0.7% | 2026-Q1 |
| Patriot Financial Group Insurance Agency, LLC added | 176,680 | $728K | 0.7% | 2026-Q1 |
| BAROMETER CAPITAL MANAGEMENT INC. added | 171,600 | $707K | 0.6% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 171,442 | $706K | 0.6% | 2026-Q1 |
| LPL Financial LLC added | 169,858 | $700K | 0.6% | 2026-Q1 |
| MATAURO, LLC new | 166,237 | $685K | 0.6% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 110,475 | $455K | 0.4% | 2026-Q1 |
| Marex Group plc trimmed | 100,001 | $412K | 0.4% | 2026-Q1 |
| Virtu Financial LLC added | 79,018 | $326K | 0.3% | 2026-Q1 |
| BlackRock, Inc. trimmed | 67,862 | $280K | 0.3% | 2026-Q1 |
| Pekin Hardy Strauss, Inc. | 65,000 | $268K | 0.2% | 2026-Q1 |
| Tejara Capital Ltd trimmed | 61,250 | $252K | 0.2% | 2026-Q1 |
| AXQ CAPITAL, LP new | 53,426 | $220K | 0.2% | 2026-Q1 |
| Alpine Global Management, LLC trimmed | 50,000 | $206K | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 44,766 | $184K | 0.2% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 44,529 | $183K | 0.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 40,418 | $167K | 0.2% | 2026-Q1 |
| Quantbot Technologies LP added | 39,113 | $161K | 0.1% | 2026-Q1 |
| Squarepoint Ops LLC added | 36,916 | $152K | 0.1% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 36,907 | $152K | 0.1% | 2026-Q1 |
| Vident Advisory, LLC added | 25,473 | $105K | 0.1% | 2026-Q1 |
| NORTHERN TRUST CORP added | 22,076 | $91K | 0.1% | 2026-Q1 |
| London & Capital Asset Management Ltd | 20,000 | $83K | 0.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 18,300 | $75K | 0.1% | 2026-Q1 |
| TWO SIGMA SECURITIES, LLC trimmed | 16,114 | $66K | 0.1% | 2026-Q1 |
| CITIGROUP INC added | 14,880 | $61K | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP trimmed | 14,168 | $58K | 0.1% | 2026-Q1 |
| NATIONAL BANK OF CANADA /FI/ trimmed | 14,000 | $58K | 0.1% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC trimmed | 13,754 | $57K | 0.1% | 2026-Q1 |
| Sollinda Capital Management LLC new | 13,400 | $55K | 0.0% | 2026-Q1 |
| Blue Trust, Inc. added | 12,854 | $53K | 0.0% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 12,389 | $51K | 0.0% | 2026-Q1 |
| QUADRANT CAPITAL GROUP LLC trimmed | 1,077 | $49K | 0.0% | 2026-Q1 |
| SmartHarvest Portfolios, LLC new | 11,075 | $46K | 0.0% | 2026-Q1 |
| MARTIN CURRIE LTD added | 1,439,121 | $8M | 6.8% | 2025-Q1 stale |
| ACADIAN ASSET MANAGEMENT LLC new | 603,895 | $3M | 2.8% | 2025-Q2 stale |
| Itau Unibanco Holding S.A. added | 658,046 | $3M | 2.7% | 2025-Q3 stale |
| Point72 Asset Management, L.P. added | 456,969 | $2M | 1.9% | 2025-Q3 stale |
| LAZARD ASSET MANAGEMENT LLC trimmed | 410,160 | $2M | 1.9% | 2025-Q2 stale |
| Kapitalo Investimentos Ltda added | 418,432 | $2M | 1.7% | 2025-Q3 stale |
| MOON CAPITAL MANAGEMENT LP trimmed | 322,073 | $2M | 1.5% | 2025-Q2 stale |
| Cubist Systematic Strategies, LLC trimmed | 250,532 | $1M | 1.1% | 2025-Q2 stale |
| LMR Partners LLP new | 320,000 | $1M | 1.1% | 2025-Q4 stale |
| Qube Research & Technologies Ltd added | 230,562 | $1M | 1.1% | 2025-Q1 stale |
| Trexquant Investment LP added | 181,168 | $915K | 0.8% | 2025-Q2 stale |
| Walleye Capital LLC trimmed | 170,534 | $890K | 0.8% | 2025-Q1 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 151,118 | $763K | 0.7% | 2025-Q2 stale |
| Jain Global LLC added | 120,846 | $610K | 0.6% | 2025-Q2 stale |
| Sanctuary Advisors, LLC trimmed | 100,428 | $524K | 0.5% | 2025-Q3 stale |
| Y-Intercept (Hong Kong) Ltd added | 95,092 | $480K | 0.4% | 2025-Q2 stale |
| INSIGNEO ADVISORY SERVICES, LLC new | 95,000 | $437K | 0.4% | 2025-Q3 stale |
| VANGUARD GROUP INC | 110,475 | $436K | 0.4% | 2025-Q4 stale |
| Optiver Holding B.V. trimmed | 78,218 | $309K | 0.3% | 2025-Q4 stale |
| INDEPENDENT FINANCIAL GROUP, LLC new | 58,618 | $306K | 0.3% | 2025-Q1 stale |
| Engineers Gate Manager LP added | 71,451 | $282K | 0.3% | 2025-Q4 stale |
| PharVision Advisers, LLC added | 58,136 | $230K | 0.2% | 2025-Q4 stale |
| BLUEFIN CAPITAL MANAGEMENT, LLC new | 50,000 | $198K | 0.2% | 2025-Q4 stale |
| Virtus Investment Advisers, LLC added | 37,131 | $171K | 0.2% | 2025-Q3 stale |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP new | 32,098 | $168K | 0.2% | 2025-Q1 stale |
| Concurrent Investment Advisors, LLC new | 33,340 | $132K | 0.1% | 2025-Q4 stale |
| Aigen Investment Management, LP new | 24,285 | $127K | 0.1% | 2025-Q1 stale |
| West Family Investments, Inc. new | 22,793 | $119K | 0.1% | 2025-Q1 stale |
| Vise Technologies, Inc. trimmed | 23,346 | $107K | 0.1% | 2025-Q3 stale |
| Centiva Capital, LP trimmed | 20,190 | $105K | 0.1% | 2025-Q1 stale |
| Pathstone Holdings, LLC trimmed | 20,412 | $103K | 0.1% | 2025-Q2 stale |
| DGS Capital Management, LLC new | 22,083 | $102K | 0.1% | 2025-Q3 stale |
| GOLDMAN SACHS GROUP INC trimmed | 22,270 | $88K | 0.1% | 2025-Q4 stale |
| Mariner, LLC trimmed | 22,049 | $87K | 0.1% | 2025-Q4 stale |
| Graham Capital Management, L.P. trimmed | 18,478 | $85K | 0.1% | 2025-Q3 stale |
| Verition Fund Management LLC trimmed | 15,889 | $80K | 0.1% | 2025-Q2 stale |
| Ethic Inc. added | 15,245 | $80K | 0.1% | 2025-Q1 stale |
| EFG International AG new | 20,000 | $79K | 0.1% | 2025-Q4 stale |
| Savant Capital, LLC added | 15,325 | $77K | 0.1% | 2025-Q2 stale |
| Corient Private Wealth LLC trimmed | 15,077 | $76K | 0.1% | 2025-Q2 stale |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 14,472 | $73K | 0.1% | 2025-Q2 stale |
| VERUS CAPITAL PARTNERS, LLC added | 18,000 | $71K | 0.1% | 2025-Q4 stale |
| Cerity Partners LLC new | 13,255 | $69K | 0.1% | 2025-Q1 stale |
| FORA Capital, LLC new | 11,200 | $58K | 0.1% | 2025-Q1 stale |
| Mirae Asset Global Investments Co., Ltd. added | 14,753 | $58K | 0.1% | 2025-Q4 stale |
| HighTower Advisors, LLC trimmed | 11,519 | $58K | 0.1% | 2025-Q2 stale |
| Creative Planning trimmed | 14,401 | $57K | 0.1% | 2025-Q4 stale |
| BOOTHBAY FUND MANAGEMENT, LLC new | 13,855 | $55K | 0.0% | 2025-Q4 stale |
| Clear Harbor Asset Management, LLC trimmed | 13,500 | $53K | 0.0% | 2025-Q4 stale |
| Ballentine Partners, LLC trimmed | 11,540 | $53K | 0.0% | 2025-Q3 stale |
| Tuttle Capital Management, LLC new | 12,786 | $51K | 0.0% | 2025-Q4 stale |
| Vanguard Personalized Indexing Management, LLC trimmed | 12,267 | $48K | 0.0% | 2025-Q4 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.