---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-219400"
form_type: "8-K"
ticker: "FLS"
cik: "0000030625"
company_name: "FLOWSERVE CORP"
filed_at: "2026-05-12T20:07:44+00:00"
generated_at: "2026-05-12T21:25:01.163358+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Flowserve issues $500M 5.700% Senior Notes due 2036, linked to Trillium Flow acquisition

## Summary
- $500M aggregate principal, 5.700% interest, due May 15, 2036.
- Interest payable semi-annually on May 15 and Nov 15, starting Nov 15, 2026.
- Special mandatory redemption at 101% if Trillium Flow acquisition not closed by Feb 4, 2027.
- Notes are senior unsecured, rank equal with existing senior unsecured debt, effectively subordinated to subsidiary liabilities.
- Optional redemption before Feb 15, 2036 at Treasury Rate plus 20bps; after that at par.

## SEC filing metadata
- accession: 0001193125-26-219400
- form_type: 8-K
- ticker: FLS
- cik: 0000030625
- company_name: FLOWSERVE CORP
- filed_at: 2026-05-12T20:07:44+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 2.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/30625/000119312526219400/0001193125-26-219400-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/30625/000119312526219400/d133335d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-219400
- JSON: https://secwatch.observer/filing/0001193125-26-219400.json
- Plain text: https://secwatch.observer/filing/0001193125-26-219400.txt

## Key facts
- Debt Financings
  FLOWSERVE CORP incurred senior notes of $500 million aggregate principal amount with U.S. Bank Trust Company, National Association at 5.700% maturing May 15, 2036.
  - Instrument: senior notes
  - Principal: $500 million aggregate principal amount
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 5.700%
  - Maturity: May 15, 2036
  - Event: incurrence
  source text: On May 12, 2026, Flowserve Corporation, a New York corporation (the “Company”), issued $500 million aggregate principal amount of its 5.700% Senior Notes due 2036 (the “Notes”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/30625/000119312526219400/0001193125-26-219400-index.htm
- Material Agreements
  FLOWSERVE CORP entered into Sixth Supplemental Indenture with U.S. Bank Trust Company, National Association valued at $500 million (effective 2026-05-12).
  - Action: entry
  - Agreement: notes offering
  - Counterparty: U.S. Bank Trust Company, National Association
  - Value: $500 million
  - Effective: 2026-05-12
  source text: On May 12, 2026, Flowserve Corporation, a New York corporation (the “Company”), issued $500 million aggregate principal amount of its 5.700% Senior Notes due 2036 (the “Notes”). The Notes were issued pursuant to a Senior Indenture, dated as of September 11, 2012 (the “Base Indenture”), between the Company and U.S. Bank Trust Company, National Association (as successor-in-interest to U.S. Bank National Association), as Trustee (the “Trustee”), as supplemented by the Sixth Supplemental Indenture, dated as of May 12, 2026 (the “Sixth Supplemental Indenture” and, together with the Base Indenture, the “Indenture”), between the Company and the Trustee.
  evidence_url: https://www.sec.gov/Archives/edgar/data/30625/000119312526219400/0001193125-26-219400-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.