Insider · CIK 0001638259

D Mark DeWalch

Files at: BSM. On EDGAR ↗

Period1M 3M 6M 1Y 2Y All datashares as filed — not split-adjusted

Open-market buys & salesbuys $119k · 3sales $0 · 0net $119k

Reported trades — common stock

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Jul 2, 2026 AForm 4 →	Jul 2, 4:55 pm EDT	Black Stone Minerals, L.P.BSM	1,342	$13.97	$18,748	432,837	—
Jan 11, 2019 AForm 4 →	Jan 14, 7:08 pm EST	Black Stone Minerals, L.P.BSM	10,842	—	—	103,407	—	plan?
Nov 16, 2018 PForm 4 →	Nov 19, 6:10 pm EST	Black Stone Minerals, L.P.BSM	1,175	$17.06	$20,044	5,984	+24.4%	plan?
Apr 5, 2018 CForm 4 →	Apr 9, 7:29 pm EDT	Black Stone Minerals, L.P.BSM	607	—	—	15,351	—	plan?
Jan 11, 2018 AForm 4 →	Jan 16, 4:50 pm EST	Black Stone Minerals, L.P.BSM	9,536	—	—	92,565	—	plan?
Apr 28, 2017 CForm 4 →	May 1, 9:18 pm EDT	Black Stone Minerals, L.P.BSM	517	—	—	15,078	—	plan?
Jan 11, 2017 AForm 4 →	Jan 12, 6:55 pm EST	Black Stone Minerals, L.P.BSM	9,095	—	—	83,029	—	plan?
Apr 8, 2016 CForm 4 →	Apr 12, 8:42 pm EDT	Black Stone Minerals, L.P.BSM	517	—	—	14,835	—	plan?
Jan 12, 2016 AForm 4 →	Jan 14, 6:51 pm EST	Black Stone Minerals, L.P.BSM	12,368	—	—	73,934	—	plan?
Jul 30, 2015 PForm 4 →	Aug 3, 11:31 am EDT	Black Stone Minerals, L.P.BSM	15	$14.56	$218	4,611	+0.33%	plan?
May 6, 2015 PForm 4 →	May 8, 9:10 pm EDT	Black Stone Minerals, L.P.BSM	5,200	$19.00	$98,800	87,816	+6.29%	plan?
May 6, 2015 AJForm 4 →	May 8, 9:10 pm EDT	Black Stone Minerals, L.P.BSM	82,616	—	—	82,616	—	plan?

Reported trades — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Apr 5, 2018 CForm 4 →	Apr 9, 7:29 pm EDT	Black Stone Minerals, L.P.BSM	815	—	—	0	—
Apr 28, 2017 CForm 4 →	May 1, 9:18 pm EDT	Black Stone Minerals, L.P.BSM	692	—	—	9	—
Apr 8, 2016 CForm 4 →	Apr 12, 8:42 pm EDT	Black Stone Minerals, L.P.BSM	692	—	—	17	—
May 6, 2015 JForm 4 →	May 8, 9:10 pm EDT	Black Stone Minerals, L.P.BSM	101,375	—	—	101,375	—