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MP Institutional Ownership & 13F Holders | SmartMoneyDB

MPMP MATERIALS CORP

COM CL A · CUSIP 553368101

Smart Money Ownership

Of the 16 tracked institutions holding MP, 9 have a 3-year clone track record — 6 of them beat the S&P. Average holder's clone alpha: +2.3pt. It's a gauge of who owns the name, not just how many.

PRICE T ROWE ASSOCIATES INC /MD/

$67.3M

+2.7pt

MP (MP MATERIALS CORP) Institutional Ownership Summary

Among the 16 tracked institutional investors we monitor, MP (MP MATERIALS CORP) is held with a combined value of $2.14B across 43,674,709 shares. The largest holder is VANGUARD GROUP INC with a position worth $731.52M (0.01% of their portfolio). 3 funds opened new positions in the most recent quarter. 5 funds increased their holdings. 7 funds reduced their position.

Total Institutional Value

$2.14B

Total Shares Held

43,674,709

Institutional Holders

% of Shares Outstanding

24.5%

of 178.02M shares · SEC 2026-04-30

Days to Cover

5.3-7.1%

26.81M shares short · FINRA 2026-06-30

Tracked 13F institutions hold 24.5% of MP's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-04-30), not a live float.

This Quarter's Biggest Movers

Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.

Biggest Buyers

BlackRock, Inc.+9% shares~$61.2M STATE STREET CORP+12% shares~$38.5M VANGUARD GROUP INC+3% shares~$23.4M CITADEL ADVISORS LLCNew position~$12.4M Bridgewater Associates, LP+73% shares~$2.2M

13F Institutional Holders

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PRICE T ROWE ASSOCIATES INC /MD/

MILLENNIUM MANAGEMENT LLC

0.01% of book-57.7%

$16.12M

Gotham Asset Management, LLC

#	Fund	Value↓	Shares	Portfolio %	Change
1	VANGUARD GROUP INC	$731.52M	14,479,787	0.01%	+3.3%
2	BlackRock, Inc.	$711.69M	14,746,925	0.01%	+9.4%
3	STATE STREET CORP	$356.99M	7,397,227	0.01%	+12.1%
4	COOPERMAN LEON G	$144.78M	3,000,000	4.75%	-
5	PRICE T ROWE ASSOCIATES INC /MD/	$67.25M	1,393,457	0.01%	-20.0%
6	FMR LLC	$43.35M	898,310	0.00%	-35.2%
7	BAILLIE GIFFORD & CO	$21.90M	453,871	0.02%	-36.7%
8	MILLENNIUM MANAGEMENT LLC	$16.12M	334,074	0.01%	-57.7%
9	Gotham Asset Management, LLC	$13.41M	277,896	0.04%	-1.9%
10	CITADEL ADVISORS LLC	$12.42M	257,413	0.01%	New

Frequently Asked Questions

Which institutional investors own the most MP stock?

As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of MP with a position worth $731.52M, representing 0.01% of their portfolio. In total, 16 institutional investors hold MP with a combined value of $2.14B.

Are hedge funds buying or selling MP?

In the most recent quarter, 3 funds opened a new position in MP. Additionally, 5 increased their holdings and 7 reduced their positions.

What percentage of MP is owned by institutional investors?

Institutional investors hold $2.14B worth of MP stock across 16 positions. The largest institutional holder is VANGUARD GROUP INC with $731.52M in holdings.

What is a 13F filing and why does it matter for MP?

A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For MP, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.

Track MP institutional moves

Get notified when hedge funds change their MP positions.