UNREGISTERED SALES OF EQUITY SECURITIES, USE OF PROCEEDS, AND ISSUER PURCHASES OF EQUITY SECURITIES
−Removed: The following table sets forth information regarding the repurchase of shares of our common stock during the three months ended March 31, 2026:
+Added: The following table sets forth information regarding the repurchase of shares of our common stock during the three months ended June 30, 2026:
Period Total number of shares purchased (1) Average price paid per share Total number of shares purchased as part of publicly announced plans or programs Approximate dollar value of shares that may yet be purchased under the plans or programs (2)
−Removed: January 1, 2025 through January 31, 2026 221 $ 115.66 — $ 157,621,254
−Removed: February 1, 2025 through February 28, 2026 367 $ 122.63 — $ 157,621,254
−Removed: March 1, 2025 through March 31, 2026 153,613 $ 119.96 — $ 157,621,254
+Added: April 1, 2026 through April 30, 2026 233 $ 123.25 — $ 157,621,254
+Added: May 1, 2026 through May 31, 2026 526 $ 126.25 — $ 157,621,254
+Added: June 1, 2026 through June 30, 2026 2,275 $ 156.25 — $ 157,621,254
3,034 $ 148.51 —
2 unchanged sentences
The specific timing and amount of any future purchases will vary based on market conditions, securities law limitations and other factors.
+Added: Issuance of Common Stock in Connection with Conversions of 3.75% Convertible Notes
+Added: On May 11, 2026 we issued 43 shares of our common stock upon the conversion of $2,000 aggregate principal amount of the 3.75% Convertible Notes and on May 13, 2026, we issued 21 shares of our common stock upon the conversion of $1,000 aggregate principal amount of the 3.75% Convertible Notes.
+Added: These shares were issued in reliance on the exemption from registration pursuant to Section 3(a)(9) of the Securities Act of 1933 as the transactions involved the exchange of securities of the same issuer with existing security holders.
MINE SAFETY DISCLOSURES
1 unchanged sentence
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.