Who owns CSN
Which tracked institutional funds hold CSN, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See CSN company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-06-15). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
Conviction spread
CSN’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 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes CSN more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in CSN 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, we do not read how tracked institutions changed their CSN positions: many holders could not be matched across the two filings, most often because the security’s identifier changed and our mapping is incomplete, or because funds are still filing for the newer quarter. 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
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. trimmed | 2,871,291 | $230M | 9.2% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 1,792,485 | $143M | 5.7% | 2026-Q1 |
| UBS Group AG added | 1,439,487 | $115M | 4.6% | 2026-Q1 |
| FULLER & THALER ASSET MANAGEMENT, INC. trimmed | 1,415,709 | $113M | 4.5% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,214,334 | $97M | 3.9% | 2026-Q1 |
| STATE STREET CORP added | 1,063,835 | $85M | 3.4% | 2026-Q1 |
| NEXPOINT ASSET MANAGEMENT, L.P. added | 895,961 | $72M | 2.9% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 848,423 | $68M | 2.7% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 838,419 | $67M | 2.7% | 2026-Q1 |
| Magnetar Financial LLC added | 807,431 | $65M | 2.6% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 49,679,000 | $61M | 2.4% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 581,782 | $47M | 1.9% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 596,502 | $46M | 1.8% | 2026-Q1 |
| MORGAN STANLEY trimmed | 561,671 | $45M | 1.8% | 2026-Q1 |
| AQR Arbitrage LLC added | 541,948 | $43M | 1.7% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 505,844 | $40M | 1.6% | 2026-Q1 |
| Allianz Asset Management GmbH added | 490,139 | $39M | 1.6% | 2026-Q1 |
| Man Group plc added | 465,729 | $37M | 1.5% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 465,034 | $37M | 1.5% | 2026-Q1 |
| ODDO BHF ASSET MANAGEMENT SAS new | 420,000 | $34M | 1.3% | 2026-Q1 |
| ALPINE ASSOCIATES MANAGEMENT INC. added | 402,515 | $32M | 1.3% | 2026-Q1 |
| LSV ASSET MANAGEMENT trimmed | 397,170 | $32M | 1.3% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 390,993 | $31M | 1.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 372,071 | $30M | 1.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 355,132 | $28M | 1.1% | 2026-Q1 |
| Bragg Financial Advisors, Inc trimmed | 339,228 | $27M | 1.1% | 2026-Q1 |
| VALUE HOLDINGS MANAGEMENT CO. LLC | 338,180 | $27M | 1.1% | 2026-Q1 |
| Sagefield Capital LP added | 324,506 | $26M | 1.0% | 2026-Q1 |
| SYQUANT CAPITAL SAS added | 310,140 | $25M | 1.0% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 308,247 | $25M | 1.0% | 2026-Q1 |
| BARCLAYS PLC trimmed | 308,014 | $25M | 1.0% | 2026-Q1 |
| Invesco Ltd. trimmed | 307,705 | $25M | 1.0% | 2026-Q1 |
| NORTHERN TRUST CORP added | 304,796 | $24M | 1.0% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 285,306 | $23M | 0.9% | 2026-Q1 |
| FIL Ltd trimmed | 282,169 | $23M | 0.9% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 278,300 | $22M | 0.9% | 2026-Q1 |
| Capula Management Ltd added | 257,088 | $21M | 0.8% | 2026-Q1 |
| HSBC HOLDINGS PLC trimmed | 247,635 | $20M | 0.8% | 2026-Q1 |
| Groupe la Francaise added | 199,677 | $16M | 0.6% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 187,533 | $15M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 187,065 | $15M | 0.6% | 2026-Q1 |
| FMR LLC added | 170,846 | $14M | 0.5% | 2026-Q1 |
| MARSHALL WACE, LLP added | 170,700 | $14M | 0.5% | 2026-Q1 |
| ProShare Advisors LLC trimmed | 162,507 | $13M | 0.5% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 161,713 | $13M | 0.5% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 154,684 | $12M | 0.5% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 154,122 | $12M | 0.5% | 2026-Q1 |
| Centiva Capital, LP added | 150,050 | $12M | 0.5% | 2026-Q1 |
| CREDIT INDUSTRIEL ET COMMERCIAL added | 148,867 | $12M | 0.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 143,073 | $11M | 0.5% | 2026-Q1 |
| HENNESSY ADVISORS INC trimmed | 139,767 | $11M | 0.4% | 2026-Q1 |
| GABELLI FUNDS LLC added | 127,540 | $10M | 0.4% | 2026-Q1 |
| GHP Investment Advisors, Inc. trimmed | 114,117 | $9M | 0.4% | 2026-Q1 |
| Defiance ETFs, LLC trimmed | 111,637 | $9M | 0.4% | 2026-Q1 |
| Penserra Capital Management LLC trimmed | 111,637 | $9M | 0.4% | 2026-Q1 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS trimmed | 106,680 | $9M | 0.3% | 2026-Q1 |
| Carmignac Gestion | 103,097 | $8M | 0.3% | 2026-Q1 |
| NORGES BANK added | 132,672 | $8M | 0.3% | 2026-Q1 |
| Public Sector Pension Investment Board added | 96,620 | $8M | 0.3% | 2026-Q1 |
| GABELLI & Co INVESTMENT ADVISERS, INC. added | 95,578 | $8M | 0.3% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 93,568 | $7M | 0.3% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 90,868 | $7M | 0.3% | 2026-Q1 |
| Nuveen, LLC trimmed | 89,194 | $7M | 0.3% | 2026-Q1 |
| Verition Fund Management LLC trimmed | 83,468 | $7M | 0.3% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 82,832 | $7M | 0.3% | 2026-Q1 |
| Kapitalo Investimentos Ltda new | 77,074 | $6M | 0.2% | 2026-Q1 |
| ABC ARBITRAGE SA trimmed | 75,205 | $6M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 75,107 | $6M | 0.2% | 2026-Q1 |
| Governors Lane LP | 72,540 | $6M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 70,708 | $6M | 0.2% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 60,800 | $5M | 0.2% | 2026-Q1 |
| Swiss National Bank trimmed | 56,400 | $5M | 0.2% | 2026-Q1 |
| Kendall Capital Management trimmed | 55,355 | $4M | 0.2% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH trimmed | 53,553 | $4M | 0.2% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 49,113 | $4M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 47,477 | $4M | 0.2% | 2026-Q1 |
| Edgestream Partners, L.P. new | 46,997 | $4M | 0.2% | 2026-Q1 |
| Louisiana State Employees Retirement System | 12,000 | $959K | 0.0% | 2026-Q2 (1 quarter ahead of as-of) |
| Morningstar Investment Management LLC | 7,076 | $566K | 0.0% | 2026-Q2 (1 quarter ahead of as-of) |
| Livforsakringsbolaget Skandia, Omsesidigt | 7,900 | $213K | 0.0% | 2026-Q2 (1 quarter ahead of as-of) |
| Curat Global, LLC trimmed | 1,050 | $50K | 0.0% | 2026-Q2 (1 quarter ahead of as-of) |
| IFP Advisors, Inc | 299 | $24K | 0.0% | 2026-Q2 (1 quarter ahead of as-of) |
| Beryl Capital Management LLC new | 709,435 | $54M | 2.2% | 2025-Q4 stale (1 quarter behind) |
| SOROS FUND MANAGEMENT LLC new | 377,410 | $29M | 1.2% | 2025-Q4 stale (1 quarter behind) |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 155,771 | $12M | 0.5% | 2025-Q4 stale (1 quarter behind) |
| Absolute Gestao de Investimentos Ltda. new | 133,995 | $10M | 0.4% | 2025-Q4 stale (1 quarter behind) |
| Hillsdale Investment Management Inc. trimmed | 103,700 | $8M | 0.3% | 2025-Q4 stale (1 quarter behind) |
| SCHRODER INVESTMENT MANAGEMENT GROUP added | 91,662 | $7M | 0.3% | 2025-Q4 stale (1 quarter behind) |
| Slotnik Capital, LLC new | 70,000 | $5M | 0.2% | 2025-Q4 stale (1 quarter behind) |
| River Road Asset Management, LLC trimmed | 54,854 | $4M | 0.2% | 2025-Q4 stale (1 quarter behind) |
| Willis Investment Counsel added | 54,097 | $4M | 0.2% | 2025-Q4 stale (1 quarter behind) |
| Schonfeld Strategic Advisors LLC new | 51,900 | $4M | 0.2% | 2025-Q4 stale (1 quarter behind) |
| LEUTHOLD GROUP, LLC added | 46,602 | $4M | 0.1% | 2025-Q4 stale (1 quarter behind) |
| PALISADE CAPITAL MANAGEMENT, LP trimmed | 438,285 | $28M | 1.1% | 2025-Q3 stale (2 quarters behind) |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ added | 377,361 | $24M | 1.0% | 2025-Q3 stale (2 quarters behind) |
| Erste Asset Management GmbH new | 82,100 | $5M | 0.2% | 2025-Q3 stale (2 quarters behind) |
| SEIZERT CAPITAL PARTNERS, LLC added | 69,187 | $4M | 0.2% | 2025-Q3 stale (2 quarters behind) |
| NORDEA INVESTMENT MANAGEMENT AB added | 62,926 | $4M | 0.2% | 2025-Q3 stale (2 quarters behind) |
| Jain Global LLC new | 56,579 | $4M | 0.1% | 2025-Q2 stale (3 quarters behind) |
1 parent filing withheld from the table above, and from the coverage figures, to avoid listing one book twice: VANGUARD GROUP INC (last filed 2025-Q4, 3,202,544 shares) reconciles to its 3 current affiliates (3,193,884 shares) — 0.270% apart.
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.