@pipeworx/hsr-notices

Connect: https://gateway.pipeworx.io/hsr-notices/mcp · Install: one-click buttons

Tools: 4

FTC Hart-Scott-Rodino (HSR) early-termination notices — the earliest public signal that a merger was filed for antitrust review and cleared, often days or weeks before an 8-K or press release for a private-target deal.

Tools

• hsr_recent(days=7, limit=25) — most recent notices, newest first.
• hsr_search(party, since?, limit=25) — notices mentioning a company or fund, matched against the notice title (which embeds both parties and the transaction number).
• hsr_party_history(party) — every notice mentioning a party, oldest to newest, with a total count.
• hsr_coverage() — total notice count, earliest/latest dates on record, and the 2021 suspension gap (below).

Auth

Optional _apiKey — an api.data.gov key. Omit it to use the shared Pipeworx platform key. Passed as the api_key query parameter.

The 2021 suspension gap

The FTC suspended HSR early-termination grants for about five weeks in 2021. This is a real gap in the underlying data, not missing Pipeworx coverage:

• Last notice before the gap: transaction 20210958, dated 2021-02-03.
• No notices exist for 2021-02-04 through 2021-03-11.
• First notices after the gap: transactions 20210455/20210456, dated 2021-03-12.

Early termination has resumed and stays current — hsr_coverage() reports the live latest-notice date on every call, and each empty-result response names this gap when the requested window overlaps it.

Field notes

• acquired_party is often the ultimate parent entity or an individual, and can differ from acquired_entities (the array of actual operating subsidiaries being acquired). Both are always returned — never collapse the array into the parent name.
• Party names are the as-filed legal name, including fund vehicles (e.g. “American Securities Partners IX(B), L.P.”). hsr_search and hsr_party_history match substrings of the notice title, so a shorter fragment finds more.
• transaction_number is YYYY + a sequence number.

Data sources

• API: https://api.ftc.gov/v0/hsr-early-termination-notices (JSON:API-style, brokered by api.data.gov)
• Docs: https://www.ftc.gov/developer/api/v0/endpoints/hsr-early-termination-notices-api

Tools

• hsr_recent — Get the most recent FTC Hart-Scott-Rodino (HSR) early-termination notices, newest first. When a merger clears HSR antitrust review early the FTC publishes a notice — for a private-target deal this is
• hsr_search — Search FTC Hart-Scott-Rodino (HSR) early-termination notices by acquirer or target company name. Matches against the notice title, which embeds both parties and the transaction number, so a partial or
• hsr_party_history — Get every FTC Hart-Scott-Rodino (HSR) early-termination notice mentioning a given company or fund, oldest to newest, with a total count — a full antitrust-clearance history for that party across every
• hsr_coverage — Report the size and date range of the FTC Hart-Scott-Rodino (HSR) early-termination notice dataset — total notice count, earliest and latest dates on record, and the 2021 suspension gap when the FTC p