Lobbying client · LD-2 disclosures
Mp Materials Corp.
Nevada
4 filings from 2 registrants · 2025–2026 · latest filed Jul 20, 2026
Reported on its behalf
$460K
every LD-2 on file
Its own filed spend
$410K
lobbying for itself
Fees to outside firms
$50K
across every firm on file
Spend over time
Every filing period on record, as reported. One column per filed period — a period with no column is a period with no filing, not a zero.
Basis · Amendments and terminations supersede the original report for the same registrant, client and period, so a revised quarter is counted once at its latest filed value. Registration-only filings carry no activity money and are excluded from these totals.
Who lobbies for them
Every outside firm that has filed on this client's behalf, by fees reported.
Reported as lobbying expenses
Money reported as spent on lobbying rather than as a fee paid to an outside firm. See the full list.
What they lobby on
Issue areas declared on the filings, ranked by how many filings name each one.
Defense
DEF
3 filings
$370K on those filings
Energy/Nuclear
ENG
3 filings
$370K on those filings
Banking
BAN
Bills named in the filings
Every bill reference extracted from the filings' activity descriptions.
Who did the lobbying
Every lobbyist named on this client's filings.
- Rebecca Rosen Mp Materials Corp.Covered position: Professional Staff Member - Senate En. & Nat. Res. Cmte.3 filingsthrough 2026
- Joseph Britton Pioneer Public AffairsCovered position: Chief of Staff to Sen. Martin Heinrich; Deputy Chief of Staff & Legislative Director to Sen. Mark Udall; Legislative Assistant to Sen. Ben Nelson2 filingsthrough 2026
- Alexander Mcdonough Pioneer Public AffairsCovered position: Senior Policy Advisor, Senator Harry Reid2 filingsthrough 2026
- Carianne Lee Pioneer Public Affairs Senior Legislative Assistant, Rep. Bonnie Watson Coleman
The filings
Every filing on record. Each row links to its full disclosure.
This record groups every filed spelling of the client's name into one entity, so "MERCK & CO., INC." and "MERCK & CO INC" read as the same company. The grouping is the client's normalized name — organizations that file under genuinely different names appear separately. Handle: mp-materials-corp.