Granahan Investment Management, LLC
Position in MP — MP Materials Corp. / DE
CIK 1026710
WALTHAM, MA
Position in MP
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$6,691,635
+$204,009 QoQ
Shares Held
138,658
+8.0% QoQ
Ownership
0.078%
of shares outstanding
% of Portfolio
0.32%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2025
2 quarters on record
Voting authority
Sole 89%
Shared 0%
None 11%
Common Shares in MP Over Time
Shares Held
Position Value (USD)
Position in Other Industrial Metals & Mining
Basic Materials · as of Mar 31, 2026Granahan Investment Management, LLC holds $29,494,834 across 3 Other Industrial Metals & Mining names. MP ranks #2 (22.7% of the industry book) .
All Filings in MP
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2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $6,691,635 | 138,658 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $6,487,626 | 128,417 | Shares | Sole | 2026-02-17 | |
| No filing history on record for this holder in this stock. | ||||||