Historical backfill in progress — 1,354 corporate & association committees ingested so far of a ~1,500-committee sweep, expected complete July 11. Rankings shift as data lands; everything refreshes nightly.

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ALNYLAM PHARMACEUTICALS, INC. POLITICAL ACTION COMMITTEE (ALNYLAM PAC)
FEC ID	C00670331
Type	N
Sponsor type	Corporation
State	MA
Connected org	ALNYLAM PHARMACEUTICALS, INC.
Treasurer	PARSONS, DEIRDRE MS.
Filed with	In-house
Disbursements	███
Receipts	███
Last filing	Dec ███ 2022
FEC records	███
Computed findings	███

ALNYLAM PHARMACEUTICALS, INC. POLITICAL ACTION COMMITTEE (ALNYLAM PAC)

N · MA · $112,039 disbursements

Money by month

Total receipts and disbursements per election cycle, from this committee's own F3X report summaries.

Chart locked — unlock to view.

FEC record (2)

Official FEC actions naming this committee — administrative fines, Matters Under Review, and Reports Analysis Division inquiries (RFAIs), each linked to the case file or letter.

Rule	Date	Severity	Finding · citation	Amount	Record
FEC requested additional information	2024-06-11	medium FEC record	FEC Reports Analysis Division sent a Request for Additional Information (2024-06-11). — an official inquiry into the report's content; the specific issue is cited in the letter. 52 U.S.C. / 11 CFR as cited in each letter (linked on every finding)	—	FEC
FEC requested additional information	2021-11-03	medium FEC record	FEC Reports Analysis Division sent a Request for Additional Information about the MY report (2021-11-03). — an official inquiry into the report's content; the specific issue is cited in the letter. 52 U.S.C. / 11 CFR as cited in each letter (linked on every finding)	—	FEC

Filing history

F3X/M6/2026-05 (1 filing)

Filed	Form	Report	Amended	FEC link
Jun ███ 2026	F3X	M6	No	███

F3X/M5/2026-04 (1 filing)

Filed	Form	Report	Amended	FEC link
May ███ 2026	F3X	M5	No	███

F3X/M4/2026-03 (1 filing)

Filed	Form	Report	Amended	FEC link
Apr ███ 2026	F3X	M4	No	███

F3X/M3/2026-02 (1 filing)

Filed	Form	Report	Amended	FEC link
Mar ███ 2026	F3X	M3	No	███

F3X/M2/2026-01 (1 filing)

Filed	Form	Report	Amended	FEC link
Feb ███ 2026	F3X	M2	No	███

F3X/YE/2025-12 (1 filing)

Filed	Form	Report	Amended	FEC link
Jan ███ 2026	F3X	YE	No	███

F3X/M12/2025-11 (1 filing)

Filed	Form	Report	Amended	FEC link
Dec ███ 2025	F3X	M12	No	███

F3X/M11/2025-10 (2 filings)

Filed	Form	Report	Amended	FEC link
Nov ███ 2025	F3X	M11	Yes	███
Nov ███ 2025	F3X	M11	No	███

F3X/M10/2025-09 (2 filings)

Filed	Form	Report	Amended	FEC link
Nov ███ 2025	F3X	M10	Yes	███
Oct ███ 2025	F3X	M10	No	███

F3X/M9/2025-08 (1 filing)

Filed	Form	Report	Amended	FEC link
Sep ███ 2025	F3X	M9	No	███

F3X/M8/2025-07 (1 filing)

Filed	Form	Report	Amended	FEC link
Aug ███ 2025	F3X	M8	No	███

F3X/M7/2025-06 (1 filing)

Filed	Form	Report	Amended	FEC link
Jul ███ 2025	F3X	M7	No	███

F3X/M6/2025-05 (1 filing)

Filed	Form	Report	Amended	FEC link
Jun ███ 2025	F3X	M6	No	███

F3X/M5/2025-04 (1 filing)

Filed	Form	Report	Amended	FEC link
May ███ 2025	F3X	M5	No	███

F3X/M4/2025-03 (1 filing)

Filed	Form	Report	Amended	FEC link
Apr ███ 2025	F3X	M4	No	███

F3X/M3/2025-02 (2 filings)

Filed	Form	Report	Amended	FEC link
Apr ███ 2025	F3X	M3	Yes	███
Mar ███ 2025	F3X	M3	No	███

F3X/M2/2025-01 (1 filing)

Filed	Form	Report	Amended	FEC link
Feb ███ 2025	F3X	M2	No	███

F3X/YE/2024-12 (1 filing)

Filed	Form	Report	Amended	FEC link
Jan ███ 2025	F3X	YE	No	███

F3X/30G/2024-11 (1 filing)

Filed	Form	Report	Amended	FEC link
Dec ███ 2024	F3X	███G	No	███

F3X/12G/2024-10 (1 filing)

Filed	Form	Report	Amended	FEC link
Oct ███ 2024	F3X	███G	No	███

F3X/M10/2024-09 (1 filing)

Filed	Form	Report	Amended	FEC link
Oct ███ 2024	F3X	M10	No	███

F3X/M9/2024-08 (1 filing)

Filed	Form	Report	Amended	FEC link
Sep ███ 2024	F3X	M9	No	███

F3X/M8/2024-07 (1 filing)

Filed	Form	Report	Amended	FEC link
Aug ███ 2024	F3X	M8	No	███

F3X/M7/2024-06 (1 filing)

Filed	Form	Report	Amended	FEC link
Jul ███ 2024	F3X	M7	No	███

F3X/M6/2024-05 (1 filing)

Filed	Form	Report	Amended	FEC link
Jun ███ 2024	F3X	M6	No	███

F3X/M5/2024-04 (1 filing)

Filed	Form	Report	Amended	FEC link
May ███ 2024	F3X	M5	No	███

F3X/M4/2024-03 (1 filing)

Filed	Form	Report	Amended	FEC link
Apr ███ 2024	F3X	M4	No	███

F3X/M3/2024-02 (1 filing)

Filed	Form	Report	Amended	FEC link
Mar ███ 2024	F3X	M3	No	███

F3X/M2/2024-01 (1 filing)

Filed	Form	Report	Amended	FEC link
Feb ███ 2024	F3X	M2	No	███

F3X/YE/2023-12 (1 filing)

Filed	Form	Report	Amended	FEC link
Jan ███ 2024	F3X	YE	No	███

F3X/M12/2023-11 (1 filing)

Filed	Form	Report	Amended	FEC link
Dec ███ 2023	F3X	M12	No	███

F3X/M11/2023-10 (1 filing)

Filed	Form	Report	Amended	FEC link
Nov ███ 2023	F3X	M11	No	███

F3X/M10/2023-09 (1 filing)

Filed	Form	Report	Amended	FEC link
Oct ███ 2023	F3X	M10	No	███

F3X/M9/2023-08 (1 filing)

Filed	Form	Report	Amended	FEC link
Sep ███ 2023	F3X	M9	No	███

F3X/M8/2023-07 (1 filing)

Filed	Form	Report	Amended	FEC link
Aug ███ 2023	F3X	M8	No	███

F3X/M7/2023-06 (1 filing)

Filed	Form	Report	Amended	FEC link
Jul ███ 2023	F3X	M7	No	███

F3X/M6/2023-05 (1 filing)

Filed	Form	Report	Amended	FEC link
Jun ███ 2023	F3X	M6	No	███

F3X/M5/2023-04 (1 filing)

Filed	Form	Report	Amended	FEC link
May ███ 2023	F3X	M5	No	███

F3X/M4/2023-03 (1 filing)

Filed	Form	Report	Amended	FEC link
Apr ███ 2023	F3X	M4	No	███

F3X/M3/2023-02 (1 filing)

Filed	Form	Report	Amended	FEC link
Mar ███ 2023	F3X	M3	No	███

F3X/M2/2023-01 (1 filing)

Filed	Form	Report	Amended	FEC link
Feb ███ 2023	F3X	M2	No	███

F3X/YE/2022-12 (1 filing)

Filed	Form	Report	Amended	FEC link
Jan ███ 2023	F3X	YE	No	███

F3X/30G/2022-11 (1 filing)

Filed	Form	Report	Amended	FEC link
Dec ███ 2022	F3X	███G	No	███

F3X/12G/2022-10 (1 filing)

Filed	Form	Report	Amended	FEC link
Oct ███ 2022	F3X	███G	No	███

F3X/M10/2022-09 (1 filing)

Filed	Form	Report	Amended	FEC link
Oct ███ 2022	F3X	M10	No	███

F3X/M9/2022-08 (1 filing)

Filed	Form	Report	Amended	FEC link
Sep ███ 2022	F3X	M9	No	███

F3X/M8/2022-07 (1 filing)

Filed	Form	Report	Amended	FEC link
Aug ███ 2022	F3X	M8	No	███

F3X/M7/2022-06 (1 filing)

Filed	Form	Report	Amended	FEC link
Jul ███ 2022	F3X	M7	No	███

F3X/M6/2022-05 (1 filing)

Filed	Form	Report	Amended	FEC link
Jun ███ 2022	F3X	M6	No	███

F3X/M5/2022-04 (1 filing)

Filed	Form	Report	Amended	FEC link
May ███ 2022	F3X	M5	No	███

F3X/M4/2022-03 (1 filing)

Filed	Form	Report	Amended	FEC link
Apr ███ 2022	F3X	M4	No	███

F3X/MY/2021-06 (3 filings)

Filed	Form	Report	Amended	FEC link
Apr ███ 2022	F3X	MY	Yes	███
Dec ███ 2021	F3X	MY	Yes	███
Aug ███ 2021	F3X	MY	No	███

F3X/YE/2021-12 (2 filings)

Filed	Form	Report	Amended	FEC link
Apr ███ 2022	F3X	YE	Yes	███
Jan ███ 2022	F3X	YE	No	███

F3X/M3/2022-02 (2 filings)

Filed	Form	Report	Amended	FEC link
Apr ███ 2022	F3X	M3	Yes	███
Mar ███ 2022	F3X	M3	No	███

F3X/YE/2020-12 (1 filing)

Filed	Form	Report	Amended	FEC link
Jan ███ 2021	F3X	YE	No	███

F3X/30G/2020-11 (1 filing)

Filed	Form	Report	Amended	FEC link
Dec ███ 2020	F3X	███G	No	███

F3X/12G/2020-10 (1 filing)

Filed	Form	Report	Amended	FEC link
Oct ███ 2020	F3X	███G	No	███

F3X/Q3/2020-09 (1 filing)

Filed	Form	Report	Amended	FEC link
Oct ███ 2020	F3X	Q3	No	███

F3X/Q2/2020-06 (2 filings)

Filed	Form	Report	Amended	FEC link
Sep ███ 2020	F3X	Q2	Yes	███
Jul ███ 2020	F3X	Q2	No	███

F3X/Q1/2020-03 (2 filings)

Filed	Form	Report	Amended	FEC link
Sep ███ 2020	F3X	Q1	Yes	███
Apr ███ 2020	F3X	Q1	No	███

F3X/YE/2019-12 (1 filing)

Filed	Form	Report	Amended	FEC link
Jan ███ 2020	F3X	YE	No	███

F3X/MY/2019-06 (1 filing)

Filed	Form	Report	Amended	FEC link
Jul ███ 2019	F3X	MY	No	███

F3X/YE/2018-12 (1 filing)

Filed	Form	Report	Amended	FEC link
Jan ███ 2019	F3X	YE	No	███

F3X/30G/2018-11 (1 filing)

Filed	Form	Report	Amended	FEC link
Dec ███ 2018	F3X	███G	No	███

F3X/Q3/2018-09 (1 filing)

Filed	Form	Report	Amended	FEC link
Oct ███ 2018	F3X	Q3	No	███

F3X/Q2/2018-06 (1 filing)

Filed	Form	Report	Amended	FEC link
Jul ███ 2018	F3X	Q2	No	███

F3X/Q1/2018-03 (1 filing)

Filed	Form	Report	Amended	FEC link
Apr ███ 2018	F3X	Q1	No	███

Top vendors paid

Vendor	Total paid	Transactions	Primary purpose
HUDSON FOR CONGRESS	███	███	POLITICAL CONTRIBUTION
DR. JOHN JOYCE FOR CONGRESS	███	███	POLITICAL CONTRIBUTION
GUTHRIE FOR CONGRESS	███	███	POLITICAL CONTRIBUTION
KEAN FOR CONGRESS INC	███	███	POLITICAL CONTRIBUTION
DSCC	███	███	PAC CONTRIBUTION
JAKE AUCHINCLOSS FOR CONGRESS	███	███	POLITICAL CONTRIBUTION
JAKE AUCHINCLOSS FOR CONGRESS	███	███	POLITICAL CONTRIBUTION
BILL CASSIDY FOR US SENATE	███	███	POLITICAL CONTRIBUTION
KATHERINE CLARK FOR CONGRESS	███	███	POLITICAL CONTRIBUTION
KATHERINE CLARK FOR CONGRESS	███	███	POLITICAL CONTRIBUTION

Contributors by cycle

From a sample of this committee's most recent itemized Schedule A receipts (the FEC never itemizes gifts of $200 or less, so counts are floors and averages describe itemized donors only). Small-dollar share is the unitemized portion of all individual contributions, from the committee's own report totals.

Cycle	Individual contributors	Avg / individual / yr	Median / individual / yr	Small-dollar share	Other contributors	From individuals	All visible receipts	Receipt lines
2026	███	███	███	—	███	███	███	███
2024	███	███	███	—	███	███	███	███
2022	███	███	███	—	███	███	███	███

Top contributors

Itemized Schedule A receipts, aggregated per contributor per year (largest visible receipts).

Contributor	Type	Year	Total	Receipts	Record
MARAGANORE, CHRISTINE	Individual	2021	███	███	FEC
MARAGANORE, JOHN M.	Individual	2021	███	███	FEC
PYOTT, DAVID	Individual	2021	███	███	FEC
PYOTT, DAVID	Individual	2025	███	███	FEC
SHARMA, PIYUSH	Individual	2025	███	███	FEC
SHARMA, PIYUSH	Individual	2026	███	███	FEC
FUECKER, KAREN	Individual	2025	███	███	FEC
BILOTTA, JAMES	Individual	2023	███	███	FEC
BOUCHER, KELLEY	Individual	2023	███	███	FEC
GARG, PUSHKAL	Individual	2023	███	███	FEC
GREENSTREET, YVONNE	Individual	2023	███	███	FEC
NOCHUR, SARASWATHY V.	Individual	2023	███	███	FEC
POULTON, JEFFREY V.	Individual	2023	███	███	FEC
TANGULER, TOLGA	Individual	2023	███	███	FEC
GREENSTREET, YVONNE	Individual	2024	███	███	FEC
TANGULER, TOLGA	Individual	2024	███	███	FEC
MAINES, TIMOTHY	Individual	2025	███	███	FEC
GARG, PUSHKAL	Individual	2024	███	███	FEC
GARG, PUSHKAL	Individual	2025	███	███	FEC
GREENSTREET, YVONNE	Individual	2025	███	███	FEC
MCLAUGHLIN, MELISSA	Individual	2025	███	███	FEC
NECHEV, LUBOMIR	Individual	2025	███	███	FEC
POULTON, JEFFREY	Individual	2025	███	███	FEC
TANGULER, TOLGA	Individual	2025	███	███	FEC
TIROZZI, MICHAEL	Individual	2025	███	███	FEC
BILOTTA, JAMES	Individual	2022	███	███	FEC
BOUCHER, KELLEY	Individual	2022	███	███	FEC
BOUCHER, KELLEY	Individual	2024	███	███	FEC
GARG, PUSHKAL	Individual	2022	███	███	FEC
GREENSTREET, YVONNE	Individual	2022	███	███	FEC
NOCHUR, SARASWATHY V.	Individual	2022	███	███	FEC
POULTON, JEFFREY V.	Individual	2022	███	███	FEC
ANDERSON, CINDY	Individual	2021	███	███	FEC
SHARMA, PIYUSH	Individual	2023	███	███	FEC
SKARIA, ARUN	Individual	2026	███	███	FEC
SLUGG, ANDREW	Individual	2025	███	███	FEC
WU, JING-TAO	Individual	2025	███	███	FEC
MENENDEZ FOR SENATE	Candidate committee	2023	███	███	FEC
POULTON, JEFFREY V.	Individual	2024	███	███	FEC
HESSLEIN, ROBERT	Individual	2025	███	███	FEC
POULTON, JEFFREY	Individual	2024	███	███	FEC
ANDERSON, KEVIN	Individual	2025	███	███	FEC
KOCHMAN, FRAN	Individual	2025	███	███	FEC
KOCHMAN, FRAN	Individual	2026	███	███	FEC
REITAN, COLLEEN	Individual	2025	███	███	FEC
ARCH, COLLEEN	Individual	2025	███	███	FEC
ARCH, COLLEEN	Individual	2026	███	███	FEC
HORNER, KELLY	Individual	2026	███	███	FEC
LISTZWAN, STEPHEN	Individual	2025	███	███	FEC
MORRIS, LUANNE	Individual	2025	███	███	FEC
ORBAND, KAREN	Individual	2022	███	███	FEC
SLUGG, ANDREW	Individual	2024	███	███	FEC
SMITH, HEATHER	Individual	2026	███	███	FEC
TRUTWIN, SHERI	Individual	2025	███	███	FEC
BILOTTA, JAMES	Individual	2024	███	███	FEC

Associated persons

PARSONS, DEIRDRE MS. treasurer

Back office

Who runs this committee's compliance operation — fingerprinted from the software named in its own e-filings, and from payments to known PAC-management firms.

Signal	Provider	Evidence
Filing software	In-house	FECfile ███(f34) (filing ███)

What links here

None.