AMYLYX PHARMACEUTICALS

Lobbying client · Massachusetts · filed 2025 to 2026

Company dedicated to the development of potential therapies for neurodegenerative diseases

$280,000 Reported spend

8 Filings counted

2 Outside firms hired

0 Bills named

Spend is reported income plus in-house expenses across 8 filings. 1 further filing for this client was restated by a later amendment and is left out of every total here. The LDA keeps a separate client record for every registrant that files for a client, so this page adds up 2 records, one per registrant listed below. Records are combined when the client name matches once case, punctuation and endings such as Inc. or LLC are set aside; for a city, county or port the state has to match as well. These filings have also been reported as AMYLYX PHARMACEUTICALS, INC.

Who filed for this client 2

TARPLIN, DOWNS & YOUNG, LLC $280,000 Outside firm · 7 filings
FOLEY HOAG LLP $0 Outside firm · 1 filing

Spend per registrant: fees an outside firm reported, or the costs the client reported for lobbying in-house. The rows add up to the total above.

Reported by year 2 years

2026 $120,000 3 filings
2025 $160,000 5 filings

Issues lobbied 2

Health Issues 7
Medicare/Medicaid 7

The count is how many filings named that issue area. A filing reports one lump figure covering every issue on it, so the money above cannot be split between them.

Agencies and chambers lobbied 2

HOUSE OF REPRESENTATIVES 7
SENATE 7

Recent filings 9 total

Q3 report

TARPLIN, DOWNS & YOUNG, LLC

3rd Quarter 2026 (July 1 - Sep 30) · House · Senate · $40,000 income · posted Oct 20, 2026

View → Q2 report

TARPLIN, DOWNS & YOUNG, LLC

2nd Quarter 2026 (Apr 1 - June 30) · House · Senate · $40,000 income · posted Jul 16, 2026

View → Q1 report

TARPLIN, DOWNS & YOUNG, LLC

1st Quarter 2026 (Jan 1 - Mar 31) · House · Senate · $40,000 income · posted Apr 20, 2026

View → Q4 report

TARPLIN, DOWNS & YOUNG, LLC

4th Quarter 2025 (Oct 1 - Dec 31) · House · Senate · $40,000 income · posted Jan 20, 2026

View → Q3 report

TARPLIN, DOWNS & YOUNG, LLC

3rd Quarter 2025 (July 1 - Sep 30) · House · Senate · $40,000 income · posted Oct 16, 2025

View → Q1 termination amendmentNo activity

FOLEY HOAG LLP

1st Quarter 2025 (Jan 1 - Mar 31) · posted Sep 22, 2025

View → Q2 report

TARPLIN, DOWNS & YOUNG, LLC

2nd Quarter 2025 (Apr 1 - June 30) · House · Senate · $40,000 income · posted Jul 16, 2025

View → Q1 terminationNo activity

FOLEY HOAG LLP Amended

1st Quarter 2025 (Jan 1 - Mar 31) · posted Apr 21, 2025

View → Q1 report

TARPLIN, DOWNS & YOUNG, LLC

1st Quarter 2025 (Jan 1 - Mar 31) · House · Senate · $40,000 income · posted Apr 15, 2025

View →

Keep going

Filings through October 20, 2026, the newest posted date on this record. Source: federal Lobbying Disclosure Act filings, synced daily. Money is self-reported by the filer and often rounded. Lobbying is legal, disclosed activity.