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Bradley J. Ehrman

DMLP
CHIEF OPERATING OFFICER · DORCHESTER MINERALS, L.P. · CIK 0001642868
FILING MIX · LIFETIME68%/32%
BUYS
26
SELLS
12
TOTAL VALUE
$3.27M
COMPANIES
1
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
142,723
AVG SELL PX
$26.39
TRADE KIND
SHOWING 38 / 38
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
14 backtested trades · 8 horizons · 10 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Bradley J. Ehrman, 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
7d14+50.00%-1.94%-0.46%-1.94%-1.71%—
14d14+71.43%-1.76%-0.85%-1.13%+0.97%—
30d14+78.57%-1.23%-0.55%-0.68%+2.40%—
60d14+71.43%+3.00%+1.27%+1.72%+2.59%—
90d14(1 pending)+61.54%+6.38%+4.70%+1.68%-3.14%—
180d14(1 pending)+61.54%+6.84%+9.76%-6.65%-8.06%—
1y14(3 pending)+63.64%+19.48%+20.62%-1.15%-17.92%—
2y14(5 pending)+77.78%+74.67%+41.82%+32.86%+49.08%—
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
DMLP · 142,723 shares · as of May 12, 2026
035,68171,362107,042142,723202120222023202420252026SHARES 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 · 26 buys / 12 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Executive Officer
4,000$26.78$107.1K142,723May 12, 2026May 12, 2026 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Executive Officer
4,727——34,437Dec 15, 2025Dec 16, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Executive Officer
1,719——32,718Dec 15, 2025Dec 16, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Executive Officer
4,727——4,726Dec 15, 2025Dec 16, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Executive Officer
4,810——31,459Dec 3, 2025Dec 5, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Executive Officer
1,749——29,710Dec 3, 2025Dec 5, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Executive Officer
4,810——9,620Dec 3, 2025Dec 5, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASEGRANT
Stock grant
18,000——18,000Dec 1, 2025Dec 3, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Executive Officer
6,543$21.63$141.5K26,649Dec 1, 2025Dec 3, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASEGRANT
Stock grant
18,000$21.63$389.3K33,192Dec 1, 2025Dec 3, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Executive Officer
2,487$21.60$53.7K121,197Nov 26, 2025Nov 26, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Executive Officer
1,000$21.26$21.3K118,710Nov 25, 2025Nov 26, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Executive Officer
3,356$29.80$100.0K117,710Mar 3, 2025Mar 4, 2025 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Executive Officer
4,727——9,453Dec 13, 2024Dec 17, 2024 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Executive Officer
1,861——26,809Dec 13, 2024Dec 17, 2024 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Executive Officer
5,679$34.41$195.4K23,943Dec 3, 2024Dec 6, 2024 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Executive Officer
14,430$34.41$496.5K29,622Dec 3, 2024Dec 6, 2024 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Executive Officer
4,727——28,670Dec 3, 2024Dec 17, 2024 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASEGRANT
Stock grant
14,430——29,622Dec 3, 2024Dec 17, 2024 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASEGRANT
Stock grant
14,430——14,430Dec 3, 2024Dec 17, 2024 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Executive Officer
2,800$29.50$82.6K102,737Jun 17, 2024Jun 18, 2024 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASEGRANT
Stock grant
14,180——14,180Dec 15, 2023Feb 21, 2024 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Executive Officer
3,453$31.03$107.1K25,919Dec 15, 2023Dec 18, 2023 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASEGRANT
Stock grant
14,180$31.03$440.0K29,372Dec 15, 2023Dec 18, 2023 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Executive Officer
4,453$28.03$124.8K89,210Nov 10, 2023Nov 13, 2023 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Executive Officer
5,026$28.14$141.4K24,381Dec 15, 2022Dec 19, 2022 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASEGRANT
Stock grant
14,215$28.14$400.0K29,407Dec 15, 2022Dec 19, 2022 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Executive Officer
1,760$28.73$50.6K75,568Nov 10, 2022Nov 11, 2022 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Operating Officer
1,309$23.03$30.1K73,808Mar 9, 2022Mar 10, 2022 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Operating Officer
850$18.91$16.1K67,582Dec 20, 2021Dec 20, 2021 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASEGRANT
Stock grant
6,500$17.69$115.0K21,692Dec 3, 2021Dec 6, 2021 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Operating Officer
1,583$17.69$28.0K20,109Dec 3, 2021Dec 6, 2021 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASEGRANT
Stock grant
7,000$14.16$99.1K22,192Mar 16, 2021Mar 17, 2021 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
SALE
Chief Operating Officer
2,076$14.16$29.4K20,116Mar 16, 2021Mar 17, 2021 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Operating Officer
4,000$11.13$44.5K61,808Jun 18, 2020Jun 18, 2020 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Operating Officer
2,000$11.25$22.5K57,808Mar 12, 2020Mar 13, 2020 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Operating Officer
1,697$15.16$25.7K55,808Mar 3, 2020Mar 3, 2020 ↗View →
DMLP
DORCHESTER MINERALS, L.P.
PURCHASE
Chief Operating Officer
513$15.00$7.7K54,111Mar 3, 2020Mar 3, 2020 ↗View →
Other insiders · DMLP
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About this filer
CIK 0001642868
ROLE
Chief Operating Officer
PRIMARY
DMLP
COMPANIES
1
ACTIVE SINCE
Mar 2020
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