Bill · S. 4107· Senate(119-S-4107)
Antitrust Accountability and Transparency Act
- Introduced
- 3/17/2026
- Last activity
- 3/17/2026 — Read twice and referred to the Committee on the Judiciary.
- Sponsored by
- Amy Klobuchar
- Cosponsors
- - 8 - 0
- Introduced
- In Committee
What this bill would do
The Antitrust Accountability and Transparency Act amends section 5 of the Clayton Act. It changes how courts consider consent judgments and introduces new rules for voluntary dismissals of antitrust proceedings. The bill shortens certain public comment periods from 60 to 45 days and requires more detailed disclosures regarding settlements and communications. It also allows State attorneys general to substitute into proceedings if the federal government seeks a voluntary dismissal. Additionally, it clarifies the court's role in determining if a consent judgment is in the public interest.
Yes· 3 of 8
Does this make what the government does easier for the public to see?+7
Requires detailed disclosure of settlement offers, divestitures, and communications between parties and government officials.
Does this put more rules on large technology companies?+6
Increases transparency and judicial scrutiny of settlements, which often impact large technology firms in antitrust cases.
Does this give people more protection from unfair business practices?+5
Prevents mergers that create material risks of violating antitrust laws, which typically protects consumers from monopoly pricing.
The opposite
Would billionaires be better off under this?-3
Greater transparency and stricter antitrust enforcement target the large-scale mergers typically pursued by ultra-wealthy corporate leaders.
Would business owners be better off under this?-2
Increased judicial scrutiny and asset-holding requirements may complicate and delay business mergers.
Who it would affect, and how
Potential Positive Impacts for People
-
Increased Transparency in Settlements: The bill requires the publication of settlement offers, divestitures, and other remedies, as well as the process used to consider them (Section 2(2)(C)). This provides more public information on how antitrust cases are resolved.
-
Stronger Court Oversight: Courts must now determine there is a "reasonable belief, based on evidence and reasoned analysis" that a consent judgment is in the public interest and does not create a "material risk of violating the antitrust laws" (Section 2(5)(A)(i)). This ensures a more rigorous check on mergers and business practices.
-
State Government Accountability: State attorneys general can now file a motion for substitution if the federal government chooses to voluntarily dismiss an antitrust proceeding (Section 2(9)(j)(2)). This prevents cases from being dropped without an option for state-level enforcement.
-
Accountability for Officials: The bill allows courts to order the production of information regarding benefits or concessions offered to government employees or officers, such as payments or donations, that may be connected to a proceeding (Section 2(6)(D)).
Potential Negative Impacts for People
-
Shorter Public Comment Windows: The time for the public to review and comment on certain proceedings is reduced from 60 days to 45 days (Section 2(2)(A)(iv) and Section 2(3)). This gives individuals and groups less time to voice concerns.
-
Asset Holding Requirements: In certain proceedings, parties must keep assets separate until 15 days after a response to comments is published, which could delay business transactions (Section 2(4)(C)(2)(A)).
-
Civil Penalties: Parties who violate the new requirements to hold assets separate may be liable for civil penalties (Section 2(4)(C)(3)).
Groups and Interests Ranking
Every group the model scored this bill for, from -10 to +10. Hover a score for the reason it gave.
- Governance And Ideology
- Improves Government Transparency+7Increase States Rights+4
- Economy And Finance
- Improves Consumer Protection+5Improves Small Business Support+3Improves Economic Growth+2
- Education And Technology
- Increases Big Tech Regulation+6
- Demographic And Interest Groups
- Good For Low Income Households+2Good For Middle Class Households+2Good For Billionaires-3Good For Business Owners-2
- 3/17/2026
- Read twice and referred to the Committee on the Judiciary.
- 8 Cosponsors added.
- Introduced in Senate
Richard BlumenthalDemocrat · Connecticut
Cory BookerDemocrat · New Jersey
Richard DurbinDemocrat · Illinois
Mazie HironoDemocrat · Hawaii
Christopher MurphyDemocrat · Connecticut
Peter WelchDemocrat · Vermont
Sheldon WhitehouseDemocrat · Rhode Island
Elizabeth WarrenDemocrat · Massachusetts