Synopsys sells $10 billion in senior notes to help fund planned Ansys acquisition
Synopsys issued six series of senior unsecured notes totaling $10.0 billion on March 17, 2025, to help fund its planned acquisition of Ansys, pay related fees and repay Ansys debt. The same day, it terminated about $9.91 billion of bridge facility commitments that had been set up for the Ansys deal, so the new notes replace that backup financing.
Key points
- Six series totaling $10.0 billion: $1.0 billion due 2027, $1.0 billion due 2028, $2.0 billion due 2030, $1.5 billion due 2032, $2.4 billion due 2035 and $2.1 billion due 2055.
- Four shorter series ($5.5 billion, due 2027 to 2032) must be redeemed at 101% of principal if the Ansys merger is not completed by January 31, 2026 (or a later agreed closing date), or if Synopsys says it will not pursue the deal.
- Interest rates range from 4.550% to 5.700%, paid semi-annually on April 1 and October 1, starting October 1, 2025.
- Effective March 17, 2025, Synopsys terminated about $9.91 billion in bridge facility commitments for the Ansys Merger.
The filing
Written by AI on Nov 8, 2026, 1:21 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on March 17, 2025.
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.