# BLACKSTONE MINE (BX) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 09225M101
Page URL: https://superinvestorclub.com/stock/BX
Last updated: 2026-07-08T13:33:14.713Z

## Summary

As of the most recent 13F filing period, BLACKSTONE MINE (BX) is held by 1 tracked superinvestors with an aggregate position value of $1.2M representing 077364 shares.

## Top institutional holders (1)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Tweedy Browne](https://superinvestorclub.com/manager/18) | Tweedy Browne Company | 77364 | $1.2M | 0.09% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2025-06-30: 1 holders, $272,783 aggregate, 020855 shares
- 2025-09-30: 1 holders, $561,091 aggregate, 042701 shares
- 2025-12-31: 1 holders, $662,227 aggregate, 049829 shares
- 2026-03-31: 1 holders, $1.2M aggregate, 077364 shares

## Recent congressional trades (34)

- 2025-12-18: Julie Johnson (Democrat-TX) sale $1,001 - $15,000
- 2025-12-11: Dan Newhouse (Republican-WA) purchase $1,001 - $15,000
- 2025-11-13: Julie Johnson (Democrat-TX) sale $1,001 - $15,000
- 2025-11-03: Ro Khanna (Democrat-CA) sale $1,001 - $15,000
- 2025-10-24: Marjorie Taylor Greene (Republican-GA) purchase $1,001 - $15,000
- 2025-08-26: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-08-14: Julie Johnson (Democrat-TX) sale $1,001 - $15,000
- 2025-07-25: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-07-21: Angus King (Other-ME) purchase $1,001 - $15,000
- 2025-07-11: Ritchie Torres (Democrat-NY) sale $1,001 - $15,000
- 2025-06-23: Ro Khanna (Democrat-CA) sale $15,001 - $50,000
- 2025-06-23: French Hill (Republican-AR) sale $100,001 - $250,000
- 2025-06-06: Val Hoyle (Democrat-OR) sale $1,001 - $15,000
- 2025-05-28: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-05-14: Marjorie Taylor Greene (Republican-GA) purchase $1,001 - $15,000

## Recent insider transactions (0)


## Citation

When citing, use: "BLACKSTONE MINE (BX) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/BX), aggregating SEC 13F, Form 4, and congressional disclosures."