Sturm Ruger Accelerates Expiration of Common Share Purchase Rights

What Happened

• Sturm Ruger & Company, Inc. announced on September 16, 2026 that it entered into an amendment to the Rights Agreement with Computershare Trust Company, N.A., as rights agent.
• The Amendment accelerates the Final Expiration Date for the Company’s common share purchase rights from the Close of Business on October 13, 2026 to the Close of Business on September 16, 2026. At that time the Rights Agreement will terminate and all distributed Rights will expire.

Key Details

• Amendment entered/announced: September 16, 2026 (Amendment dated as of September 15, 2026 is attached as Exhibit 4.1).
• New Final Expiration Date: Close of Business on September 16, 2026 (previously October 13, 2026).
• Rights agent: Computershare Trust Company, N.A.
• Company issued a press release about the Amendment on September 16, 2026 (filed as Exhibit 99.1).

Why It Matters

• The filing ends the existing Rights Agreement and causes all previously distributed common share purchase rights to expire as of September 16, 2026. For investors, that means holders will no longer have those purchase rights after that date.
• The amendment and termination are documented in the filed Amendment (Exhibit 4.1) and announced via a company press release (Exhibit 99.1), which investors can review for full details.