Last updated Aug 4, 2026
NSP (NSP) is a publicly traded company. This page tracks every superinvestor 13F holding, congressional stock trade, and Form 4 insider transaction in NSP. Across our datasets, 1 superinvestors hold NSP, 1 members of Congress have traded it, and 12 insider buys are on record.
Notable holders include Tom Gayner. Active congressional traders include Lois Frankel.
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