Form: 144

Report of proposed sale of securities

September 8, 2026

144: Filer Information

144: Issuer Information

144: Securities Information

Title of the Class of Securities To Be SoldName and Address of the BrokerNumber of Shares or Other Units To Be SoldAggregate Market ValueNumber of Shares or Other Units OutstandingApproximate Date of SaleName the Securities Exchange
Class A Common Stock
Goldman Sachs & Co. LLC
200 West Street
New York   NY   10282
1148134406522.942014860209/08/2026
NYSE


Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the ClassDate you AcquiredNature of Acquisition TransactionName of Person from Whom AcquiredIs this a Gift?Date Donor AcquiredAmount of Securities AcquiredDate of PaymentNature of Payment *
Class A Common Stock06/08/2026Acquired upon option exerciseThe IssuerCheckbox not checked9085206/08/2026Option exercise
Class A Common Stock09/01/2026Acquired as compensation -- Restricted Stock UnitsThe IssuerCheckbox not checked2396109/01/2026Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.



Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of SellerTitle of Securities SoldDate of SaleAmount of Securities SoldGross Proceeds
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock06/08/202610406334255.29
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock06/09/20264748151732.79
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock06/22/202611187341895.98
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock06/23/20263955119894.24
Orion 2024 GST Trust u/a/d 3/20/2024
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/01/2026207473319.43
Elysian 2024 GST Trust u/a/d 3/20/2024
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/01/2026207473319.43
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/01/202610399367622.33
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/01/20265435188355.9
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/02/202657219931.97
Orion 2024 GST Trust u/a/d 3/20/2024
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/02/2026109438677.93
Elysian 2024 GST Trust u/a/d 3/20/2024
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/02/2026109438677.93
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/02/20265489194061.4
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/06/20269135301874.3
Orion 2024 GST Trust u/a/d 3/20/2024
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/06/2026381332.55
Elysian 2024 GST Trust u/a/d 3/20/2024
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/06/2026381332.55
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/06/20261916697.84
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/20/202614092448435.62
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock07/21/2026105033419.61
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock08/03/202615142369966
Orion 2024 GST Trust u/a/d 3/20/2024
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock08/04/202611378411229.36
Elysian 2024 GST Trust u/a/d 3/20/2024
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock08/04/202611378411229.36
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock08/04/2026571322064893.31
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock08/17/202614265505936.76
Orion 2024 GST Trust u/a/d 3/20/2024
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock08/17/20262916105640.85
Elysian 2024 GST Trust u/a/d 3/20/2024
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock08/17/20262916105640.85
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock08/17/202614642530450.38
Bryan Leach
1400 16th Street
Suite 600
Denver   CO   80202
Class A Common Stock08/18/202687732098.55

144: Remarks and Signature