There is a long list of 71 institutional holders of TUSK within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of TUSK by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-TUSK table below, the initial column indicates the name of each top institutional holder of TUSK, with a link to that fund's top holdings. The next columns indicate the amount of TUSK stock held by each of the institutional holders of TUSK, followed by the TUSK position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
Wexford Capital LP	22,030,871	$98,258	12/31/2023
TUSK	22,030,871	$98,258	12/31/2023
Adage Capital Partners GP L.L.C.	4,275,000	$19,066	12/31/2023
TUSK	4,275,000	$19,066	12/31/2023
Valueworks LLC	3,349,718	$14,940	12/31/2023
TUSK	3,349,718	$14,940	12/31/2023
BlackRock Inc.	1,496,945	$6,676	12/31/2023
TUSK	1,496,945	$6,676	12/31/2023
Royce & Associates LP	1,284,451	$5,729	12/31/2023
TUSK	1,284,451	$5,729	12/31/2023
Vanguard Group Inc.	706,403	$3,151	12/31/2023
TUSK	706,403	$3,151	12/31/2023
Dimensional Fund Advisors LP	644,986	$2,877	12/31/2023
TUSK	644,986	$2,877	12/31/2023
Geode Capital Management LLC	483,751	$2,158	12/31/2023
TUSK	483,751	$2,158	12/31/2023
State Street Corp	405,066	$1,807	12/31/2023
TUSK	405,066	$1,807	12/31/2023
Bridgeway Capital Management Inc.	363,098	$1,619	12/31/2023
TUSK	363,098	$1,619	12/31/2023
Acadian Asset Management LLC	243,982	$1,086	12/31/2023
TUSK	243,982	$1,086	12/31/2023
X Square Capital LLC	215,092	$959	12/31/2023
TUSK	215,092	$959	12/31/2023
Northern Trust Corp	194,978	$870	12/31/2023
TUSK	194,978	$870	12/31/2023
CastleKnight Management LP	167,433	$747	12/31/2023
TUSK	167,433	$747	12/31/2023
Bank of New York Mellon Corp	159,937	$713	12/31/2023
TUSK	159,937	$713	12/31/2023
Renaissance Technologies LLC	142,972	$638	12/31/2023
TUSK	142,972	$638	12/31/2023
Stifel Financial Corp	107,072	$478	12/31/2023
TUSK	107,072	$478	12/31/2023
Invesco Ltd.	98,651	$440	12/31/2023
TUSK	98,651	$440	12/31/2023
Two Sigma Advisers LP	87,300	$389	12/31/2023
TUSK	87,300	$389	12/31/2023
Susquehanna International Group LLP		$373	12/31/2023
Call	83,600	$373	12/31/2023
Advisor Group Holdings Inc.	79,965	$357	12/31/2023
TUSK	79,965	$357	12/31/2023
Empowered Funds LLC	67,998	$303	12/31/2023
TUSK	67,998	$303	12/31/2023
Charles Schwab Investment Management Inc.	63,981	$285	12/31/2023
TUSK	63,981	$285	12/31/2023
First Trust Advisors LP	63,238	$282	12/31/2023
TUSK	63,238	$282	12/31/2023
Barclays PLC	57,727	$258	12/31/2023
TUSK	57,727	$258	12/31/2023
Long Focus Capital Management LLC	57,681	$257	12/31/2023
TUSK	57,681	$257	12/31/2023
Morgan Stanley	55,169	$246	12/31/2023
TUSK	55,169	$246	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	54,147	$241	12/31/2023
TUSK	54,147	$241	12/31/2023
Penbrook Management LLC	64,900	$236	03/31/2024
TUSK	64,900	$236	03/31/2024
NBC Securities Inc.	55,140	$211	03/31/2024
TUSK	55,140	$211	03/31/2024
Simplex Trading LLC		$169	12/31/2023
TUSK	35,792	$159	12/31/2023
Call	2,500	$11	12/31/2023
Put	400	$1	12/31/2023
Nuveen Asset Management LLC	36,843	$164	12/31/2023
TUSK	36,843	$164	12/31/2023
WINTON GROUP Ltd	36,829	$164	12/31/2023
TUSK	36,829	$164	12/31/2023
Group One Trading L.P.		$159	12/31/2023
Call	36,500	$163	12/31/2023
Put	1,000	$4	12/31/2023
Royal Bank of Canada	33,427	$149	12/31/2023
TUSK	33,427	$149	12/31/2023
O Shaughnessy Asset Management LLC	28,236	$126	12/31/2023
TUSK	28,236	$126	12/31/2023
Full Sail Capital LLC	27,191	$121	12/31/2023
TUSK	27,191	$121	12/31/2023
Rhumbline Advisers	26,175	$117	12/31/2023
TUSK	26,175	$117	12/31/2023
Citadel Advisors LLC		$116	12/31/2023
Call	33,900	$151	12/31/2023
Put	7,900	$35	12/31/2023
UBS Group AG	25,505	$114	12/31/2023
TUSK	25,505	$114	12/31/2023
Bank of America Corp DE	25,358	$113	12/31/2023
TUSK	25,358	$113	12/31/2023
Jane Street Group LLC	24,918	$111	12/31/2023
TUSK	24,918	$111	12/31/2023
NJ State Employees Deferred Compensation Plan	24,000	$107	12/31/2023
TUSK	24,000	$107	12/31/2023
Price T Rowe Associates Inc. MD	23,326	$105	12/31/2023
TUSK	23,326	$105	12/31/2023
JPMorgan Chase & Co.	23,344	$104	12/31/2023
TUSK	23,344	$104	12/31/2023
Archer Investment Corp	21,400	$95	12/31/2023
TUSK	21,400	$95	12/31/2023
Goldman Sachs Group Inc.	20,250	$90	12/31/2023
TUSK	20,250	$90	12/31/2023
Mirae Asset Global Investments Co. Ltd.	15,016	$67	12/31/2023
TUSK	15,016	$67	12/31/2023
LPL Financial LLC	14,607	$65	12/31/2023
TUSK	14,607	$65	12/31/2023
SG Americas Securities LLC	12,699	$57	12/31/2023
TUSK	12,699	$57	12/31/2023