Item 1A. Risk Factors

There have been no material changes to the risk factors for the three months ended March 31, 2022. For a discussion of our other potential risks and uncertainties, see “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2021, which is accessible on the SEC's website at sec.gov.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

We did not sell any equity securities during the period covered in this report that were not registered under the Securities Act.

Except as set forth below, all unregistered purchases of equity securities during the period covered by this Quarterly Report were previously disclosed in our current reports on Form 8-K or quarterly reports on Form 10-Q ($ in thousands; except share data):

(1)In February 2022, our board of directors approved the renewal of our stock repurchase program that authorizes the repurchase of up to $150 million of shares of our Class A common stock. Under this stock repurchase program, shares may be repurchased from time to time in open market purchases, privately negotiated transactions or otherwise, including in reliance on Rule 10b5-1 of the Securities Act. The program is scheduled to expire in March 2023. Repurchases under the program depend on the prevailing market conditions and other factors.

As permitted by our policies and procedures governing transactions in our securities by our directors, executive officers and other employees, from time to time some of these persons may establish plans or arrangements complying with Rule 10b5-1 under the Exchange Act, and similar plans and arrangements relating to our Class A common stock.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.