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Insider Trading Intelligence
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Luke Stevens Putman

BSM
SVP, GENERAL COUNSEL, AND SEC · BLACK STONE MINERALS, L.P. · CIK 0001337171
FILING MIX · LIFETIME38%/62%
BUYS
14
SELLS
23
TOTAL VALUE
$9.08M
COMPANIES
1
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
702,645
AVG SELL PX
$13.59
TRADE KIND
SHOWING 37 / 37
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
7 backtested trades · 8 horizons · 10 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Luke Stevens Putman, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d7+71.43%-0.98%+1.07%-2.05%-3.23%
14d7+42.86%+0.30%+1.38%-1.41%+1.73%
30d7+42.86%-1.84%+3.57%-6.00%-0.35%
60d7+42.86%-3.34%+2.40%-5.74%-4.84%
90d7(1 pending)+50.00%-3.03%+1.61%-2.98%-5.64%
180d7(3 pending)+25.00%+10.06%+3.10%+6.96%+12.91%
1y7(3 pending)+25.00%+18.87%+8.78%+10.08%+13.34%
2y7(3 pending)+25.00%+31.69%+29.07%+2.63%-12.20%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
BSM · 702,645 shares · as of May 5, 2026
0204,249408,498612,746816,995202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 14 buys / 23 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
BSM
BLACK STONE MINERALS, L.P.
SALE10b5-1
10b5-1 plan
29,386$13.75$404.0K702,645May 5, 2026May 6, 2026View →
BSM
BLACK STONE MINERALS, L.P.
SALE10b5-1
10b5-1 plan
29,386$14.45$424.7K732,031Apr 6, 2026May 6, 2026View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, General Counsel, and Sec
29,386$14.45$424.7K732,031Apr 6, 2026Apr 7, 2026View →
BSM
BLACK STONE MINERALS, L.P.
SALE10b5-1
10b5-1 plan
30,276$15.25$461.6K761,417Mar 5, 2026Mar 6, 2026View →
BSM
BLACK STONE MINERALS, L.P.
SALE10b5-1
10b5-1 plan
30,276$15.25$461.6K761,417Mar 5, 2026May 6, 2026View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, General Counsel, and Sec
25,302$15.23$385.3K791,693Feb 24, 2026Feb 26, 2026View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
68,853816,995Feb 24, 2026Feb 26, 2026View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
65,420748,142Feb 4, 2026Feb 6, 2026View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, General Counsel, and Sec
14,920$13.38$199.6K682,722Jan 7, 2026Jan 9, 2026View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
96,008734,709Feb 25, 2025Feb 27, 2025View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, General Counsel, and Sec
37,067$15.11$560.1K697,642Feb 25, 2025Feb 27, 2025View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
62,884638,701Feb 14, 2025Feb 19, 2025View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, General Counsel, and Sec
15,479$14.49$224.3K575,817Jan 7, 2025Jan 8, 2025View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
107,476633,589Feb 20, 2024Feb 22, 2024View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, General Counsel, and Sec
42,293$14.91$630.6K591,296Feb 20, 2024Feb 22, 2024View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
56,325526,113Jan 31, 2024Feb 2, 2024View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, General Counsel, and Sec
16,633$16.05$267.0K469,788Jan 7, 2024Jan 9, 2024View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
100,000$15.06$1.51M486,421May 4, 2023May 5, 2023View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
27,245$15.56$423.9K586,421Feb 22, 2023Feb 24, 2023View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
69,235613,666Feb 22, 2023Feb 24, 2023View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
55,711544,431Feb 1, 2023Feb 3, 2023View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
15,659$15.47$242.2K488,720Jan 7, 2023Jan 10, 2023View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
60,000$11.82$709.4K504,379Feb 25, 2022Feb 25, 2022View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
59,374582,831Feb 22, 2022Feb 24, 2022View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
18,452$11.61$214.2K564,379Feb 22, 2022Feb 24, 2022View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
70,892523,457Feb 2, 2022Feb 4, 2022View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
13,391$11.17$149.6K452,565Jan 7, 2022Jan 11, 2022View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
50,000$9.82$491.0K465,956May 19, 2021May 21, 2021View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
58,755530,264Feb 23, 2021Feb 25, 2021View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
14,308$9.32$133.4K515,956Feb 23, 2021Feb 25, 2021View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
67,334471,509Feb 3, 2021Feb 5, 2021View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
11,377$7.75$88.2K404,175Jan 7, 2021Jan 11, 2021View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
16,666$8.93$148.8K415,552Feb 25, 2020Feb 27, 2020View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
61,786432,218Feb 25, 2020Feb 27, 2020View →
BSM
BLACK STONE MINERALS, L.P.
PURCHASEGRANT
Stock grant
48,206370,432Feb 24, 2020Feb 26, 2020View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
30,000$12.99$389.7K322,226Jan 8, 2020Jan 9, 2020View →
BSM
BLACK STONE MINERALS, L.P.
SALE
SVP, GC, and Secretary
10,249$13.31$136.4K352,226Jan 7, 2020Jan 9, 2020View →
Other insiders · BSM
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About this filer
CIK 0001337171
ROLE
SVP, General Counsel, and Sec
PRIMARY
BSM
COMPANIES
1
ACTIVE SINCE
Jan 2020
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