Aaron Bill
Government post most recently disclosed: U.S. House of Representatives-Staff assistant, Associate Counsel, Policy Fellow, Legislative Counsel, Legislative Director, Legislative Assistant- 9/06- 8/08 and 4/14 - 11/23.
The register gives a lobbyist a separate record at each firm. This person is very likely also listed as Aaron Bill (Daiichi Sankyo, Inc.), with the same distinctive name at back-to-back firms. The register itself does not confirm these are one person.
Lobby filings counts every filing that names this lobbyist, amendments included. Contributions come from the twice-yearly LD-203 reports, counting the current version of each report once.
Lobbying filings
| Filing | Firm | Client | Amount |
|---|---|---|---|
| 3rd Quarter - Report 3rd Quarter 2026 |
BIOGEN | BIOGEN | $880,000 reported |
| 2nd Quarter - Report 2nd Quarter 2026 |
BIOGEN | BIOGEN | $1,060,000 reported |
| 1st Quarter - Report 1st Quarter 2026 |
BIOGEN | BIOGEN | $1,460,000 reported |
| 4th Quarter - Report 4th Quarter 2025 |
BIOGEN | BIOGEN | $770,000 reported |
Political contributions
Contribution reports (LD-203)
Every report the register holds. A report replaced by a later version is listed but not counted.
From reports filed under the Lobbying Disclosure Act: LD-2 reports name the lobbyists who worked on each issue, and LD-203 reports list their political contributions twice a year.