13F Insight
DOSSIER · 13F-HR · Q1 2026

STEELHEAD PARTNERS LLC

STEELHEAD's family office based in Stamford, CT — $1.4B in tracked AUM across 24 positions as of Q1 2026.

S
STEELHEAD·Stamford, CT·Family Office
CIK 0001133521 · last filed Mar 31, 2026
Total AUM
$1.4B
▼ 4.9%
vs prior
Holdings
24
—
positions
Whale Score
75
75
strong
Activity
—
no data
changes this Q
Top sector
Tech
8% weight
concentration
AI Analysis · Q1 2026 · Q1 2026
Comprehensive Analysis of Steelhead Partners LLC SEC 13F Filing
1. Portfolio Overview

Steelhead Partners LLC reported a significant decrease in portfolio value during the quarter ending September 30, 2025, dropping 16.1% from approximately $1.99 billion to $1.67 billion. This contraction in AUM is likely attributable to a combination of asset reallocation, principal repayments, and potential market depreciation of the underlying fixed-income securities. The portfolio remains highly concen...

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
BBIO 2.5 03/15/27
BBIO 2 1/2 03/15/27
$127M70.0M9.1%
02
ON 0 05/01/27
ON 0 05/01/27
$126M97.7M9.1%
03
90353TAM2
UBER 0 7/8 12/01/28
$121M100.0M8.7%
04
AEIS 2.5 09/15/28
AEIS 2 1/2 09/15/28
$98M40.5M7.0%
05
AKAM 1.125 02/15/29
AKAM 1 1/8 02/15/29
$88M77.0M6.3%
06
LCII 3 03/01/30
LCII 3 03/01/30
$83M69.0M6.0%
07
ALRM 2.25 06/01/29
ALRM 2 1/4 06/01/29
$83M90.0M6.0%
08
NET 0 08/15/26
NET 0 08/15/26
$82M70.0M5.9%
09
ALNY 1 09/15/27
ALNY 1 09/15/27
$77M60.0M5.5%
10
DXCM 0.375 05/15/28
DXCM 0 3/8 05/15/28
$77M82.8M5.5%

Filing history

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