Context: How B3 (Brasil, Bolsa, Balcao) works, and what it makes issuers disclose · Brazil on the LatAm Power Map
| Full name | Rumo S.A. |
| Tickers / exchange | RAIL3 (B3, São Paulo); RUMOF (US over-the-counter) |
| Headquarters | Curitiba, Paraná, Brazil |
| Sector | Railroads (Industrials) |
| Employees | 8,255 |
| Market value | R$23.1bn (about US$4.49bn) |
| Yearly sales (2025) | R$13.85bn (about US$2.69bn) |
| Net profit (2025) | R$847m (about US$164m) |
| Net margin | 6.1% (our calculation) |
| Return on equity | 7.3% |
| Price-to-earnings | 22.2 |
| Dividend yield | 0.9% |
| Website | rumolog.com |
What it is
Rumo is Brazil’s largest railway operator, hauling freight rather than passengers. It operates in nine states, with more than 14,000 kilometres of railroads and direct operations in Brazil’s main ports, carrying agricultural products for export, plus fuel, containers and cellulose.
The work is simple to picture: move grain from the farms of the interior to the coast cheaper than trucks can. Rumo handles roughly a quarter of Brazil’s grain exports.
Who owns it
Rumo is controlled by Cosan, the Brazilian energy-and-logistics group built by Rubens Ometto Silveira Mello. Cosan is the largest shareholder, with about 30% of the shares.
The rest trades freely, which is why large funds matter here. Capital Research and Management and BlackRock have held roughly 8.4% and 5.0% respectively.
The structured data shows about 74% of the shares sit with institutions and 24% with insiders.
Rumo was founded in 2006 by the Cosan Group to solve logistics bottlenecks for Cosan’s sugar and ethanol operations. It took its present shape in 2016, when América Latina Logística changed its name to Rumo S.A.
Live Company IntelligenceRumo S.A — the full investor dossier
Rumo S.A., through its subsidiaries, engages in the rail logistics operation. The company operates through North Operations, South Operations, and Container Operations segments. The North Operations segment is involved in the railway, highway, and transshipment operations. The South Operations segment comprises of rail and transhipment operations…
Net income rose to R$847.1 mn in 2025, from R$719.7 mn in 2023.
Who runs it
Pedro Marcus Lira Palma has been chief executive since 2024, after serving as vice president of commercial affairs from 2020 to 2024. Guilherme Lelis Bernardo Machado has been chief financial and investor relations officer since 2024, having previously worked at Rumo, Cosan and Comgás.
The board is chaired by the controlling owner. Rubens Ometto Silveira Mello has been chairman since 2023 and also chairs Cosan.
The money, in plain words
Sales were flat last year, at R$13.85bn (about US$2.69bn) against R$13.94bn (US$2.7 bn) the year before, a fall of about 0.6% (our calculation). The bigger story is the swing in profit.
The company kept about 6 cents of profit from every real of sales, a net margin of 6.1% (our calculation) after losing money in 2024. For every real owners put in, it earned roughly 7 back over the year, a return on equity of 7.3% — modest for now.
The heaviest weight is debt. Borrowings of R$31.3bn (US$6.1 bn) against R$7.0bn (US$1.4 bn) of cash leave net debt of about R$24.2bn (around US$4.7bn) (our calculation), so interest costs eat into profit.
Investors pay 22 times yearly earnings for the shares, a price-to-earnings ratio of 22.2 — a price that assumes profit recovers. The dividend is small, a yield of 0.9%, because cash goes into building track.
What it is doing now
2025 was a year of record volumes but thin profit. Transported volume reached 84.2 billion revenue-ton-kilometres for the year, up 5%.
Yet competition bit into pricing. Rumo faced a more competitive grain-logistics environment, losing share in regions like Mato Grosso and the port of Santos, with lower export volumes despite a record corn crop.
The main project is a new railway reaching deeper into the farm belt. Rumo continues to invest in its Mato Grosso railway expansion, positioning for potential price recovery through 2026.
What to watch
Debt is the number to track: leverage closed 2025 at 1.9 times net debt to adjusted earnings. As Brazilian interest rates ease, lower financing costs could lift the bottom line.
The second is the threat from the road. Road transportation is a growing alternative, challenging Rumo’s market share.
Whether the new Mato Grosso line restores pricing power is the open question for 2026.
Sources
This is news, not investment advice.
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