Who owns B3 S.A. - Brasil, Bolsa, Balcão?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from SEC filings.
Institutional ownership of BOLSY from SEC Form 13F filings across 7 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 7 institutions disclosed 158,469 shares of B3 S.A. - Brasil, Bolsa, Balcão worth $1.3M — about 0% of shares outstanding; the largest disclosed holder is O'Brien Greene & Co. Inc. Source: SEC Form 13F filings, parsed by EvidInvest.
7
13F holders
$1.3M
value, 2026 filers
0%
of shares outstanding (158,469 sh)
1
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of BOLSY's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | O'Brien Greene & Co. Inc | 124,900 | $1.1M | 0.3% | 0% | +5.9% |
| 2 | RHUMBLINE ADVISERS | 27,755 | $235,917 | 0.0% | 0% | +9.7% |
| 3 | GAMMA Investing LLC | 3,752 | $31,892 | 0.0% | 0% | +21.5% |
| 4 | Westside Investment Management, Inc. | 1,396 | $11,866 | 0.0% | 0% | 0.0% |
| 5 | Strive Financial Group ,LLC | 500 | $4,250 | 0.0% | 0% | 0.0% |
| 6 | PNC Financial Services Group, Inc. | 104 | $884 | 0.0% | 0% | +6.1% |
| 7 | IMA Advisory Services, Inc.NEW | 62 | $527 | 0.0% | 0% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.