DIMENSIONAL FUND ADVISORS LP

Position in TUSK — Mammoth Energy Services, Inc.

CIK 354204 AUSTIN, TX

Position in TUSK

as of Mar 31, 2026 · filed May 7, 2026 Compact

Position Value

$1,681,186

+$386,784 QoQ

Shares Held

686,199

-1.9% QoQ

Ownership

1.42%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 87.28502956139546.ToString("F0")% Shared 7.531197218299648.ToString("F0")% None 5.183773220304897.ToString("F0")%

Industrials · as of Mar 31, 2026

DIMENSIONAL FUND ADVISORS LP holds $2,171,622,655 across 18 Conglomerates names. TUSK ranks #15 (0.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	HON	Honeywell International Inc	3,386,458	$802,770,026
2	MMM	3M Co	2,910,497	$422,691,477
3	SEB	Seaboard Corp /De/	47,087	$266,230,837
4	GHC	Graham Holdings Co	235,043	$248,501,560
5	VMI	Valmont Industries Inc	389,496	$155,630,914
6	DLX	Deluxe Corp	2,753,203	$75,823,208
7	OTTR	Otter Tail Corp	815,241	$71,553,700
8	MATW	Matthews International Corp	1,614,201	$41,678,668

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,681,186	686,199	-1.9%	Shares	Sole	2026-05-07
2025-12-31	$1,294,402	699,678	-25.3%	Shares	Sole	2026-02-12
2025-09-30	$2,144,386	936,414	-5.8%	Shares	Sole	2025-11-12
2025-06-30	$2,782,958	993,914	-0.7%	Shares	Sole	2025-08-12
2025-03-31	$2,042,455	1,001,204	+1.0%	Shares	Sole	2025-05-13
2024-12-31	$2,973,669	991,223	+11.0%	Shares	Sole	2025-02-13
2024-09-30	$3,652,073	892,928	+10.7%	Shares	Sole	2024-11-07
2024-06-30	$2,644,598	806,280	+14.0%	Shares	Sole	2024-08-09
2024-03-31	$2,574,160	707,187	+9.6%	Shares	Sole	2024-05-10
2023-12-31	$2,876,635	644,986	+31.4%	Shares	Sole	2024-02-07
2023-09-30	$2,276,884	490,708	+55.3%	Shares	Sole	2023-11-09
2023-06-30	$1,526,191	315,982	+1.4%	Shares	Sole	2023-08-09
2023-03-31	$1,314,890	311,586	-3.6%	Shares	Sole	2023-05-12
2022-12-31	$2,795,548	323,185	+34.0%	Shares	Sole	2023-02-09
2022-09-30	$822,300	241,144	+44.4%	Shares	Sole	2022-11-10
2022-06-30	$367,269	166,941	+67.2%	Shares	Sole	2022-08-12
2022-03-31	$212,637	99,830	-36.8%	Shares	Defined	2022-05-13
2021-12-31	$287,316	157,866	-2.9%	Shares	Defined	2022-02-09
2021-09-30	$473,232	162,623	-17.5%	Shares	Defined	2021-11-12
2021-06-30	$904,367	197,030	-4.3%	Shares	Defined	2021-08-12
2021-03-31	$1,094,781	205,786	0.0%	Shares	Defined	2021-05-14
2020-12-31	$915,747	205,786	-26.0%	Shares	Defined	2021-03-08
2020-09-30	$445,148	278,218	-40.3%	Shares	Defined	2020-11-12
2020-06-30	$550,252	466,316	-38.1%	Shares	Defined	2020-08-13
2020-03-31	$564,114	753,157	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.