# Spanish infrastructure firms ownership changes

> Live situation record from CLSTR: https://clstr.news/situations/spanish-infrastructure-firms-ownership-changes
> Updated: 2026-08-10T16:53:15.000Z. Sources: 9. Developments: 3.

In June 2026, María del Pino Calvo‑Sotelo sold roughly €484 million of Ferrovial shares through her family vehicle, Menosmares, reducing her holding to approximately 8.5%. Simultaneously, Florentino Pérez, president of ACS, increased his ownership to 14.752% via Rosán Inversiones, controlling 40.86 million shares valued at about €5.25 billion and becoming the company’s largest shareholder.

By July 2026, ACS’s market capitalization had surged from €7.6 billion to nearly €34 billion, tripling since La Caixa’s €983 million investment in May 2024. This growth, which positioned ACS as a top gainer on the Ibex 35, is attributed to a strategic pivot toward technology-related infrastructure, including data centers, semiconductors, and defense. Criteria (the investment arm of Fundación La Caixa) saw its 9.36% stake rise in value to approximately €3.05 billion.

In August 2026, Pérez increased his stake for the third time that year, reaching a historic high of 15.015% through Rosán Inversiones. This holding, comprising 41.61 million shares, was valued at approximately €4.54 billion at a share price of €109.1. The accumulation follows strong financial results, including a 13.3% increase in attributable net profit to €510 million in the first half of 2026, driven largely by engineering, construction, and the U.S.-based subsidiary, Turner.

## Timeline

### 2026-08-10: Florentino Pérez increases ACS stake to record 15.015%

ACS President Florentino Pérez has increased his stake in the construction company to a record 15.015% via Rosán Inversiones, following strong semiannual profits and significant share price growth.

3 sources. https://clstr.news/cluster/florentino-prez-increases-acs-stake-to-record-15015

### 2026-07-19: ACS shares triple after La Caixa investment, boosting Florentino Pérez stake

La Caixa’s €983 m purchase of 9.36% of ACS has seen the share price rise from €38.65 to about €120, tripling the company's market cap and boosting Florentino Pérez’s stake to €5 billion.

5 sources. https://clstr.news/cluster/acs-shares-triple-after-la-caixa-investment-boosting-florentino-prez-stake

### 2026-06-24: Spanish tycoons María del Pino and Florentino Pérez adjust stakes in Ferrovial and ACS

María del Pino sold €484 M of Ferrovial shares, keeping an 8.5 % stake, while Florentino Pérez raised his ACS holding to 14.752 %, valued at €5.25 billion, marking a major reshuffle of Spanish billionaire asset

2 sources. https://clstr.news/cluster/spanish-tycoons-mara-del-pino-and-florentino-prez-adjust-stakes-in-ferrovial-and-acs

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Cite as: Spanish infrastructure firms ownership changes. CLSTR, https://clstr.news/situations/spanish-infrastructure-firms-ownership-changes