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Livermore
Livermore
ZHEN

Segra Capital Management, LLC

SEC CIK
0001607512
Latest filing
Aug 12, 2026

The latest 13F from Segra Capital Management, LLC covers Q2 2026 (filed Aug 12, 2026): 7 long positions worth $435.0M. The top 10 holdings make up 100.0% of the portfolio, and the largest is X-Energy, Inc. (XE) at 61.1%. Livermore has 21 filings on Form 13F from this institution, going back to Q4 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
3
Est. +$301.3M
Added
4
Est. +$31.2M
Reduced
0
Sold out
2
Est. −$15.5M

Top 5 holdings

Share of this quarter's portfolio value

  1. XEX-Energy, Inc.
    61.1%$265.8MHistory
  2. VSTVistra Corp.
    10.8%$46.9MHistory
  3. AMTMAmentum Holdings, Inc.
    9.7%$42.1MHistory
  4. CEGConstellation Energy Corp
    7.3%$31.8MHistory
  5. NRGNRG Energy, Inc.
    4.4%$19.0MHistory

Share of portfolio

Top 5 holdings and the other 2 positions, by share of portfolio value

  1. XE61.1%
  2. VST10.8%
  3. AMTM9.7%
  4. CEG7.3%
  5. NRG4.4%
  6. Other 2 positions6.8%

Biggest buys

New and added positions, by estimated amount bought

  1. XEX-Energy, Inc.
    +$265.8MNewHistory
  2. VSTVistra Corp.
    +$20.8MAddedHistory
  3. NRGNRG Energy, Inc.
    +$19.0MNewHistory
  4. FLSFlowserve Corp
    +$16.5MNewHistory
  5. AMTMAmentum Holdings, Inc.
    +$8.79MAddedHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. XEX-Energy, Inc.
    +61.09 pp0.0% → 61.1%History
  2. NRGNRG Energy, Inc.
    +4.36 pp0.0% → 4.4%History
  3. FLSFlowserve Corp
    +3.79 pp0.0% → 3.8%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. GEVGE Vernova Inc.
    −$13.1MSold outHistory
  2. URGUr-Energy Inc
    −$2.38MSold outHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. GEVGE Vernova Inc.
    −10.19 pp10.2% → 0.0%History
  2. URGUr-Energy Inc
    −1.86 pp1.9% → 0.0%History

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$435.0M
+$306.6M (+238.7%) vs. prior quarter
Positions
7
+1 vs. prior quarter
Top 10 concentration
100.0%
Top 10 as share of value
Turnover
5.5%
Q2 2026, one quarter
Average holding period
2.0 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q4 2021), so positions held before then are understated.

13F filings by quarter

19 quarters, going back to Q4 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $435.0M (Q2 2026)

Q4 2021: $65.8MQ1 2022: $109.9MQ2 2022: $89.8MQ3 2022: $119.7MQ4 2022: $136.2MQ1 2023: $140.9MQ2 2023: $171.5MQ3 2023: $139.4MQ4 2023: $103.1MQ1 2024: $130.8MQ2 2024: $109.1MQ3 2024: $256.4MQ4 2024: $194.5MQ1 2025: $204.1MQ2 2025: $310.0MQ3 2025: $86.5MQ4 2025: $46.6MQ1 2026: $128.4MQ2 2026: $435.0M
Q4 2021Q2 2026
13F filings of Segra Capital Management, LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 12, 20267$435.0MXEVSTAMTMvs. Q1 2026SEC
Q1 2026May 7, 20266$128.4MAMTMCEGVSTvs. Q4 2025SEC
Q4 2025Feb 17, 20265$46.6MNKLRAMTMVSTvs. Q3 2025SEC
Q3 2025Nov 14, 20254$86.5MURGNXEAMTMvs. Q2 2025SEC
Q2 2025Aug 14, 20258$310.0MNXEDNNCCJvs. Q1 2025SEC
Q1 2025May 15, 20259$204.1MNXEDNNBWXTvs. Q4 2024SEC
Q4 2024Feb 14, 20257$194.5MNXEDNNURGvs. Q3 2024SEC
Q3 2024Nov 15, 20248$256.4MNXECCJDNNvs. Q2 2024SEC
Q2 2024Aug 14, 20244$109.1MNXEURGDNNvs. Q1 2024SEC
Q1 2024May 15, 20244$130.8MNXEDNNURGvs. Q4 2023SEC
Q4 2023Feb 14, 20243$103.1MNXEDNNURGvs. Q3 2023SEC
Q3 2023Nov 14, 20235$139.4MNXEDNNUECvs. Q2 2023SEC
Q2 2023Aug 14, 20235$171.5MNXECCJDNNvs. Q1 2023SEC
Q1 2023May 15, 2023Amended6$140.9MNXECCJDNNvs. Q4 2022SEC
Q4 2022Feb 14, 20235$136.2MNXECCJDNNvs. Q3 2022SEC
Q3 2022Nov 14, 20225$119.7MNXECCJDNNvs. Q2 2022SEC
Q2 2022Aug 11, 20227$89.8MNXECCJDNNvs. Q1 2022SEC
Q1 2022Nov 14, 2022Amended7$109.9MNXEGlobal X Uranium ETFCCJvs. Q4 2021SEC
Q4 2021Feb 11, 20226$65.8MNXEGlobal X Uranium ETFCCJ–SEC

13D and 13G filings

Companies where Segra Capital Management, LLC reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

2 companies, largest stake first.

Companies where Segra Capital Management, LLC owns 5% or more
CompanyLatest formStakeChangeFirst filedLatest filingFiling
General Fusion Inc.Common Stock13G9.90%6.30M sharesNewJul 17, 20261 filingJul 17, 2026SEC
XEX-Energy, Inc.13G5.30%15.1M sharesNewJul 17, 20261 filingJul 17, 2026SEC

Latest filings

6 filings on file made by Segra Capital Management, LLC or listing it as a reporting person, newest first.

Schedule 13D and 13G filings by Segra Capital Management, LLC
CompanyFiled (ET)FormStakeChangeEvent dateFiling
XEX-Energy, Inc.Jul 17, 202612:44 PM ET13G5.30%15.1M sharesNewJun 9, 2026SEC
General Fusion Inc.Common StockJul 17, 202610:41 AM ET13G9.90%6.30M sharesNewJul 13, 2026SEC
URGUr-Energy IncNov 14, 20251:14 PM ET13G/A3.10%11.8M shares−5.60 ppfrom 8.70%Below 5%Jul 29, 2024SEC
URGUr-Energy IncAug 14, 20254:05 PM ET13G/A8.70%31.8M shares+1.60 ppfrom 7.10%Jul 29, 2024SEC
URGUr-Energy IncFeb 13, 20256:19 PM ET13G/A7.10%25.7M shares–Jul 29, 2024SEC
URGUr-Energy IncAug 7, 202413GOld format–New–SEC