DOSSIER · 13F-HR · Q1 2026

Great Mountain Partners LLC

$15M in tracked AUM across 1 positions as of Q1 2026.

GM
CIK 0001815467 · last filed Mar 31, 2026
Total AUM
$15M
as of Q1 2026
Holdings
1
positions
Whale Score
61
61
tracked
Activity
no data
changes this Q
AI Analysis · Q1 2026
Portfolio Overview

Great Mountain Partners LLC reports a concentrated, single-stock long equity portfolio with a total 13F value of $29.14 million as of 2025-12-31. The filing lists one holding only (25.56 million shares of New Fortress Energy, ticker NFE), which represents 100.0% of the reported 13F portfolio. This is an initiation relative to the prior quarter (2025-09-30): the filer reported one new position and no reductions, increases, or sales. Note that 13F filings capture long position...

Key Holdings

The entire reported portfolio (25.56 million shares; $29.14M) is invested in New Fortress Energy Inc. (NFE), classified in this filing under the Utilities sector. The implied market value per share on the report date is approximately $1.14 (calculated as $29.14M / 25.56M shares). Because this is the sole holding, the position drives all portfolio return and risk. Investors should confirm the filer’s percentage ownership of NFE’s outstanding shares (via company filings or 13D/G filings) to assess whether this stake is passive or potentially influential.

Sector Allocation

Sector concentration is extreme: 100% of reported assets are allocated to Utilities (the filing’s sector classification for NFE). There is no sector diversification. This creates high exposure to both idiosyncratic company risk and any macro/regulatory or sector-specific shocks that affect the Utilities/energy space.

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
NFE
NEW FORTRESS ENERGY INC
$15M25.6M100.0%

Filing history

2026Q1Mar 31
$15M 48.2%
1 positionsView →
2025Q4Dec 31
$29M
1 positionsView →
2025Q3Sep 30
$0 100.0%
0 positionsView →
2025Q2Jun 30
$85M
1 positionsLocked
2025Q1Mar 31
$0 100.0%
0 positionsLocked
2024Q4Dec 31
$404M 29.4%
2 positionsLocked
2024Q3Sep 30
$572M 30.7%
2 positionsLocked
2024Q2Jun 30
$826M 13.4%
2 positionsLocked
2024Q1Mar 31
$954M 11.9%
2 positionsLocked
2023Q4Dec 31
$1.1B 16.6%
2 positionsLocked
2023Q3Sep 30
$929M 21.3%
2 positionsLocked
2023Q2Jun 30
$765M 10.8%
2 positionsLocked
Showing 12 of 24