13F

Investor

SEGRA CAPITAL MANAGEMENT, LLC

CIK 0001607512 · filed 2026-05-07 · SEC filing

13F book

$248M

Positions

6

2 new · 1 sold

Largest name

17.0%

Amentum Holdings, Inc. · AMTM

Est. mark

$30.4M

Price effect on 4 names still held. Flow $51.3M.
NameTickerSharesValueWeightEst. markChange
Amentum Holdings, Inc.AMTM1.61M$42.1M17.0%−$1.77MAdded$24.5M
Constellation Energy CorpCEG123K$34.3M13.9%New
Vistra Corp.VST165K$24.8M10.0%$24MCut$15.8M
GE Vernova Inc.GEV15K$13.1M5.3%New
Terra Innovatum Global Nv2.53M$11.8M4.7%$8.24MCut−$6.66M
Ur-Energy IncURG1.6M$2.38M1.0%−$159.8KAdded$2.22M

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.