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Companhia Siderúrgica Nacional (SID) institutional ownership

Latest close $1.00 Jul 21, 2026
Market cap$1.2B 52-week range SectorBasic Materials
Funds holding · Q1 2026
89
reported SID position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
37 buyers · 52 sellers

Companhia Siderúrgica Nacional (SID) price and institutional activity

Dates

Q1 2026

$0 bought by 37 investors
Renaissance Technologies LLCBanque Cantonale Vaudoise +35 more
$0 sold by 52 investors
Millennium Management LLCCitadel Advisors LLC +50 more
Bought Sold Totals per quarter; hover a bar for the names.

Companhia Siderúrgica Nacional (SID) institutional activity · 89

Investor Type Est. change Change Δ Own Date
Millennium Management LLC · Reduced
Change −2.3M Date Q1 2026
Millennium Management LLC Reduced· Q1 2026 −2.3M Q1 2026
Renaissance Technologies LLC Added· Q1 2026 +1.5M +41.9% Q1 2026
Citadel Advisors LLC Reduced· Q1 2026 −1.2M −59.8% Q1 2026
Two Sigma Investments, LP · Reduced
Change −1.1M Δ Own −55.5% Date Q1 2026
Two Sigma Investments, LP Reduced· Q1 2026 −1.1M −55.5% Q1 2026
Banque Cantonale Vaudoise · Added
Change +800K Date Q1 2026
Banque Cantonale Vaudoise Added· Q1 2026 +800K Q1 2026
Bank of America Corp · Reduced
Change −717K Date Q1 2026
Bank of America Corp Reduced· Q1 2026 −717K Q1 2026
Jane Street Group, LLC · Reduced
Change −685K Date Q1 2026
Jane Street Group, LLC Reduced· Q1 2026 −685K Q1 2026
Caption Management, LLC · New
Change +663K Date Q1 2026
Caption Management, LLC New· Q1 2026 +663K Q1 2026
Morgan Stanley · Reduced
Change −603K Date Q1 2026
Morgan Stanley Reduced· Q1 2026 −603K Q1 2026
American Century Companies Inc · Added
Change +566K Date Q1 2026
American Century Companies Inc Added· Q1 2026 +566K Q1 2026
Two Sigma Advisers, LP · Exited
Change −493K Δ Own −100.0% Date Q1 2026
Two Sigma Advisers, LP Exited· Q1 2026 −493K −100.0% Q1 2026
BNP Paribas Financial Markets · Added
Change +433K Date Q1 2026
BNP Paribas Financial Markets Added· Q1 2026 +433K Q1 2026
Marshall Wace, LLP · Added
Change +407K Date Q1 2026
Marshall Wace, LLP Added· Q1 2026 +407K Q1 2026
Goldman Sachs Group Inc · Reduced
Change −387K Date Q1 2026
Goldman Sachs Group Inc Reduced· Q1 2026 −387K Q1 2026
Barometer Capital Management Inc. · Added
Change +360K Date Q1 2026
Barometer Capital Management Inc. Added· Q1 2026 +360K Q1 2026
Data through Q1 2026 · filed Jun 2, 2026
15 of 89

Famous investor activity in Companhia Siderúrgica Nacional (SID)

Companhia Siderúrgica Nacional (SID) activist and large shareholders

Dates
No Schedule 13D or 13G filing is available for SID in this range.

Companhia Siderúrgica Nacional (SID) ownership FAQ

Who owns SID?

89 reporting institutions disclosed SID position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.