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Commitments and Contingencies | 12 Months Ended
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Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract] |
Commitments and Contingencies | 15. Commitments and Contingencies The Company has certain non-cancelable purchase obligations related to the manufacturing of drug substance and drug product, with Bachem Americas, Inc., under which the Company has agreed to purchase a significant portion of its requirements for the pegcetacoplan drug substance over the next five years and a commercial supply agreement with NOF Corporation, under which the Company has agreed to purchase activated polyethylene glycol derivative, or PEG, which is a component of pegcetacoplan. Under these agreements, as of December 31, 2023, the Company is obligated to pay up to an aggregate of $94.6 million to these vendors. In addition, the Company has other non-cancelable purchase agreements as of December 31, 2023, under which it is obligated to pay up to $16.1 million to vendors. The Company is a party to a master lease agreement under which the Company leases vehicles with initial terms of 36 months from the date of delivery. If the Company were unable to take delivery of a previously ordered vehicle, the Company may incur nominal fees. Indemnifications—In the ordinary course of business, the Company enters into agreements that may include indemnification provisions. Pursuant to such agreements, the Company may indemnify, hold harmless and defend indemnified parties for losses suffered or incurred by the indemnified party. Some of the provisions will limit losses to those arising from third-party actions. In some cases, the indemnification will continue after the termination of the agreement. The maximum potential amount of future payments the Company could be required to make under these provisions is not determinable. The Company has no t incurred any cost to defend lawsuits or settle claims related to these indemnification provisions. Legal—During the normal course of business, the Company may be a party to legal claims that may not be covered by insurance. The Company cannot predict the outcome of the litigation described in Item 3 with certainty. The Company intends to defend vigorously against this litigation.

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