X0708 D/A LIVE 0002053818 Protos Fund LP - Series 5 1339 EAST 3RD AVENUE SALT LAKE CITY UT UTAH 84103 (415) 405-6199 DELAWARE None Firstlight Investment Fund LP - Series 5 Limited Partnership true 2025 - Protos Fund Management LP 1339 East 3rd Avenue Salt Lake City UT UTAH 84103 Executive Officer General Partner - Protos Fund Management LLC 1339 East 3rd Avenue Salt Lake City UT UTAH 84103 Executive Officer General Partner of Protos Fund Management LP, General Partner Andrew J. Secrist 1339 East 3rd Avenue Salt Lake City UT UTAH 84103 Executive Officer Manager of Protos Fund Management LLC, General Partner of Protos Fund Management LP, General Partner Pooled Investment Fund Hedge Fund false Decline to Disclose 06b 3C 3C.1 true 0000935836-25-000421 2025-05-01 true true true true Limited Partner Interests false 500000 Indefinite 6001500 Indefinite false 10 0 true 0 true 0 true None, although the general partner of the issuer receives a management fee and carried interest distribution. false Protos Fund LP - Series 5 Andrew J. Secrist Andrew J. Secrist Mgr of Firstlight Mgmt LLC, GP of Firstlight Mgmt LP, GP 2026-05-21