Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

Ero Copper Corp.

CIK 0001853860ERO· quarter ending 2026-06-30

Shares outstanding

104,192,288

as of 2025-12-31 · 40-F cover page, filed 2026-03-30

Held by 13F filers

37,514

selection includes debt or preferreds — no % of shares outstanding

Holders

+0 vs 2026-03-31 · 0 new, 0 exited

Value

$1.0M

shares +0.0% vs prior quarter

Share classes (cover page of the 40-F filed 2026-03-30, as of 2025-12-31)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	ERO · NYSE	104,192,288	70,131,450	67.3%	207	296006109

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	296006109	COM	207	70,131,450	104,192,288	67.3%	$1.9B	13 call / 10 put	13DG	holders →
	296006950	EQUITYnot common	1	37,514	—	—	$1.0M	—	prefix	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (1 of 1 · 296006950)

change vs 2026-03-31

#	Filer	Shares / principal	% of class	Value	Change
1	Police & Firemen's Retirement System of New Jersey	37,514	—	$1.0M	—

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Abigail P. Johnson	SCHEDULE 13G/A	2026-08-06	2026-06-30	4,486,895	4.3%
FIL Limited	SCHEDULE 13G/A	2026-08-06	2026-06-30	9,319,597	8.9%
FMR LLC	SCHEDULE 13G/A	2026-08-06	2026-06-30	4,486,895	4.3%
Pandanus Associates, Inc.	SCHEDULE 13G/A	2026-08-06	2026-06-30	9,319,597	8.9%
Pandanus Partners, L.P.	SCHEDULE 13G/A	2026-08-06	2026-06-30	9,319,597	8.9%
GMT Capital Corp.	SCHEDULE 13G/A	2026-02-13	2025-12-31	4,472,154	4.3%
Thomas E. Claugus	SCHEDULE 13G/A	2026-02-13	2025-12-31	4,472,154	4.3%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.