13F Portfolios

Board of Trustees of The Leland Stanford Junior University: BLACKSTONE MINE (BSM): Quarterly 13F Position History

As of Q1 2026, Board of Trustees of The Leland Stanford Junior University reported 147,852 shares of BLACKSTONE MINE (BSM), worth $2.2M and representing 0.3% of its 13F equity book. The position first appeared in Q2 2016 and has been disclosed across 40 13F-HR filings in Pactolio's tracked window.

Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 40 quarter s

Quarter Shares QoQ Share Change Share Change (%) Market Value Weight Implied Price
Q1 2026 147,852 0 — $2.2M 0.3% $15.1
Q4 2025 147,852 0 — $2.0M 0.4% $13.3
Q3 2025 147,852 0 — $1.9M 0.2% $13.1
Q2 2025 147,852 0 — $1.9M 0.2% $13.1
Q1 2025 147,852 0 — $2.3M 0.2% $15.3
Q4 2024 147,852 0 — $2.2M 0.2% $14.6
Q3 2024 147,852 0 — $2.2M 0.2% $15.1
Q2 2024 147,852 0 — $2.3M 0.2% $15.7
Q1 2024 147,852 0 — $2.4M 0.2% $16.0
Q4 2023 147,852 0 — $2.4M 0.2% $16.0
Q3 2023 147,852 0 — $2.5M 0.2% $17.2
Q2 2023 147,852 0 — $2.4M 0.2% $15.9
Q1 2023 147,852 0 — $2.3M 0.2% $15.7
Q4 2022 147,852 0 — $2.5M 0.3% $16.9
Q3 2022 147,852 0 — $2.3M 0.1% $15.7
Q2 2022 147,852 0 — $2.0M 0.1% $13.7
Q1 2022 147,852 0 — $2.0M 0.1% $13.5
Q4 2021 147,852 0 — $1.5M 0.1% $10.3
Q3 2021 147,852 0 — $1.8M 0.1% $12.1
Q2 2021 147,852 0 — $1.6M 0.1% $10.7
Q1 2021 147,852 0 — $1.3M 0.1% $8.7
Q4 2020 147,852 0 — $988.0K 0.1% $6.7
Q3 2020 147,852 0 — $908.0K 0.3% $6.1
Q2 2020 147,852 0 — $961.0K 0.8% $6.5
Q1 2020 147,852 0 — $692.0K 0.1% $4.7
Q4 2019 147,852 0 — $1.9M 0.2% $12.7
Q3 2019 147,852 0 — $2.1M 0.2% $14.2
Q2 2019 147,852 +83,841 +131.0% $2.3M 0.3% $15.5
Q1 2019 64,011 0 — $1.1M 0.2% $17.6
Q4 2018 64,011 0 — $991.0K 0.1% $15.5
Q3 2018 64,011 0 — $1.2M 0.1% $18.2
Q2 2018 64,011 0 — $1.2M 0.1% $18.5
Q1 2018 64,011 0 — $1.1M 0.1% $16.5
Q4 2017 64,011 0 — $1.1M 0.1% $17.9
Q3 2017 64,011 0 — $1.1M 0.1% $17.3
Q2 2017 64,011 0 — $1.0M 0.1% $15.8
Q1 2017 64,011 +64,011 — $1.1M 0.1% $16.5
Q4 2016 0 64,011 -100.0% $0 0.0% —
Q3 2016 64,011 0 — $1.1M 0.1% $17.8
Q2 2016 64,011 — — $992.0K 0.1% $15.5
Manager profile Board of Trustees of The Leland Stanford Junior University Full 13F portfolio, AUM history & peer overlap Quarterly changes Portfolio Changes — Q1 2026 Board of Trustees of The Leland Stanford Junior University's quarter-over-quarter portfolio shifts Institutional ownership BLACKSTONE MINE (BSM) All institutional holders of BSM

Methodology & FAQ

How This Position History Is Sourced

Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.

When did Board of Trustees of The Leland Stanford Junior University first disclose a BSM position in 13F-HR filings?

Board of Trustees of The Leland Stanford Junior University first reported BLACKSTONE MINE (BSM) on its 13F-HR filing for the period ending 2016-06-30 (Q2 2016). The position has appeared on 40 reported quarters within Pactolio's tracked window.

What was Board of Trustees of The Leland Stanford Junior University's most recent quarter-over-quarter share-count change in BSM?

Board of Trustees of The Leland Stanford Junior University held the same 147,852 shares of BSM between Q4 2025 and Q1 2026 — the reported share count was unchanged quarter-over-quarter.

Does the implied price-per-share represent Board of Trustees of The Leland Stanford Junior University's cost basis in BSM?

No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.