Luke Stevens Putman is VP & Secretary at Black Stone Minerals, L.P. (BSM). They have made 17 open-market trades across 2 companies since 2006, most recently 2026-05-05.
CIK 0001337171
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
3 open-market purchases totalling $36K since 2006, against 14 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| BSM | 702,645 | $10.6M |
| QMAR | 179,000 | — |
| Total | $10.6M |
Shares reported on the most recent Form 4, priced at the 2026-05-06 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| BSM | SELL · 10b5-1 | 2026-05-05 | 2026-05-06 | $13.75 | $404K | +4.1% | +2.7% | +9.4% |
| BSM | SELL | 2026-04-06 | 2026-04-07 | $14.45 | $425K | -4.2% | -6.4% | -5.2% |
| BSM | SELL · 10b5-1 | 2026-03-05 | 2026-05-06 | $15.25 | $462K | +4.1% | +2.7% | +9.4% |
| BSM | SELL | 2026-03-05 | 2026-03-06 | $15.25 | $462K | -0.4% | -5.9% | -9.6% |
| BSM | SELL | 2023-05-04 | 2023-05-05 | $15.06 | $1.5M | +1.3% | +0.9% | +10.4% |
| BSM | SELL | 2022-02-25 | 2022-02-25 | $11.82 | $709K | +3.9% | +11.9% | +32.0% |
| BSM | SELL | 2021-05-19 | 2021-05-21 | $9.82 | $491K | +1.3% | +5.6% | -1.6% |
| BSM | SELL | 2020-01-08 | 2020-01-09 | $12.99 | $390K | -11.3% | -24.6% | -53.6% |
| BSM | SELL | 2019-04-15 | 2019-04-17 | $17.45 | $1.2M | +2.5% | -2.8% | -14.3% |
| BSM | SELL | 2019-03-12 | 2019-03-13 | $17.30 | $865K | +0.7% | +2.3% | -6.8% |
| BSM | SELL | 2019-01-09 | 2019-01-09 | $16.34 | $1.1M | -0.2% | +4.0% | +9.5% |
| BSM | SELL | 2018-10-15 | 2018-10-16 | $17.59 | $478K | -5.9% | -3.7% | -9.3% |
| BSM | SELL | 2018-04-16 | 2018-04-17 | $17.53 | $438K | -1.2% | +4.2% | +1.5% |
| BSM | SELL | 2018-01-09 | 2018-01-10 | $18.27 | $697K | +2.2% | -6.8% | -6.9% |
| BSM | SELL · 10b5-1 | 2017-01-18 | 2017-01-20 | $18.67 | $38K | -1.7% | -3.9% | -11.9% |
| BSM | SELL | 2017-01-12 | 2017-01-17 | $18.85 | $536K | -1.5% | -5.4% | -13.0% |
| BSM | BUY | 2015-05-06 | 2015-05-08 | $19.00 | $19K | -4.3% | +6.2% | +6.2% |
| QMAR | SELL | 2007-07-13 | 2007-07-17 | $17.67 | $177K | N/A | N/A | N/A |
| QMAR | BUY | 2006-04-04 | 2006-04-04 | $8.49 | $8K | N/A | N/A | N/A |
| QMAR | BUY | 2006-03-17 | 2006-03-17 | $8.69 | $9K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.