STEELHEAD PARTNERS LLC

13F filer · CIK 1133521 · Seattle, WA

Summary

STEELHEAD PARTNERS LLC reported $1.40B across 25 positions in its 13F for 2026 Q2, filed Aug 14, 2026. The largest holdings are Uber Technologies Inc (10.3%), Bridgebio Pharma Inc (8.9%), Akamai Technologies Inc (8.6%). Versus 2026 Q1, leaving options aside, it opened 8 new positions, added to 10, trimmed 2 and sold out of 7.

Reported value$1.40B

Positions25

Report period2026 Q2

FiledAug 14, 2026

New positions8

Added10

Trimmed2

Sold out7

Top 25 holdings

By reported value, options listed separately · change vs 2026 Q1

Uber Technologies IncNo ticker matchAdd

Weight 10.3%Value $143.91MPrincipal $120.00M +20.00%

Bridgebio Pharma IncNo ticker matchHold

Weight 8.9%Value $124.78MPrincipal $70.00M

Akamai Technologies IncNo ticker matchAdd

Weight 8.6%Value $120.16MPrincipal $100.00M +150.00%

Alarm Com Hldgs IncNo ticker matchHold

Weight 6.1%Value $85.53MPrincipal $90.00M

LCII 3 03.01.30LCI IndsAdd

Weight 5.6%Value $79.14MPrincipal $70.50M +2.17%

ALNY 1 09.15.27Alnylam Pharmaceuticals IncAdd

Weight 5.6%Value $78.16MPrincipal $65.00M +8.33%

Dexcom IncNo ticker matchHold

Weight 5.5%Value $77.48MPrincipal $82.85M

Nutanix IncNo ticker matchHold

Weight 5.2%Value $73.51MPrincipal $65.00M

NET 0 08.15.26Cloudflare IncTrim

Weight 4.6%Value $64.44MPrincipal $50.00M -28.57%

VRNS 1 09.15.29Varonis Sys IncAdd

Weight 4.1%Value $57.56MPrincipal $59.14M +47.85%

WK 1.25 08.15.28Workiva IncAdd

Weight 4.1%Value $57.30MPrincipal $61.00M +6.09%

ON 0.5 03.01.29ON Semiconductor CorpNew

Weight 3.5%Value $48.57MPrincipal $40.23M

BILL 0 04.01.30Bill Holdings IncAdd

Weight 3.1%Value $43.29MPrincipal $50.00M +49.25%

DDOG 0 12.01.29Datadog IncNew

Weight 3.0%Value $42.59MPrincipal $30.00M

Irhythm Holdings IncNo ticker matchAdd

Weight 3.0%Value $42.11MPrincipal $38.12M +5.54%

Post Hldgs IncNo ticker matchAdd

Weight 2.8%Value $39.47MPrincipal $38.01M +30.12%

Halozyme Therapeutics IncNo ticker matchAdd

Weight 2.8%Value $39.05MPrincipal $35.00M +83.70%

DASH 0 05.15.30Doordash IncNew

Weight 2.5%Value $34.40MPrincipal $35.00M

SNOW 0 10.01.27Snowflake IncNew

Weight 2.4%Value $33.29MPrincipal $20.00M

PENG 2 08.15.30Penguin Solutions IncTrim

Weight 2.0%Value $28.36MPrincipal $10.00M -56.52%

BL 1 06.01.29Blackline IncHold

Weight 1.8%Value $25.85MPrincipal $28.00M

DOCN 0 12.01.26Digitalocean Hldgs IncNew

Weight 1.7%Value $23.14MPrincipal $20.43M

AEISAdvanced Energy IndsNew

Weight 1.5%Value $20.57MPrice $283.30Shares 55KSince Jun 30 -24.02%

Travere Therapeutics IncNo ticker matchNew

Weight 1.3%Value $17.69MPrincipal $15.00M

NEONeoGenomics IncNew

Weight 0.1%Value $1.89MPrice $19.29Shares 129KSince Jun 30 +32.21%

Stock	Weight	Value	Price	Shares	Since Jun 30	Shares change	Action
Uber Technologies IncNo ticker match	10.3%	$143.91M	—	$120.00M prn	—	+20.00%	Add
Bridgebio Pharma IncNo ticker match	8.9%	$124.78M	—	$70.00M prn	—	—	Hold
Akamai Technologies IncNo ticker match	8.6%	$120.16M	—	$100.00M prn	—	+150.00%	Add
Alarm Com Hldgs IncNo ticker match	6.1%	$85.53M	—	$90.00M prn	—	—	Hold
LCII 3 03.01.30LCI Inds	5.6%	$79.14M	—	$70.50M prn	—	+2.17%	Add
ALNY 1 09.15.27Alnylam Pharmaceuticals Inc	5.6%	$78.16M	—	$65.00M prn	—	+8.33%	Add
Dexcom IncNo ticker match	5.5%	$77.48M	—	$82.85M prn	—	—	Hold
Nutanix IncNo ticker match	5.2%	$73.51M	—	$65.00M prn	—	—	Hold
NET 0 08.15.26Cloudflare Inc	4.6%	$64.44M	—	$50.00M prn	—	-28.57%	Trim
VRNS 1 09.15.29Varonis Sys Inc	4.1%	$57.56M	—	$59.14M prn	—	+47.85%	Add
WK 1.25 08.15.28Workiva Inc	4.1%	$57.30M	—	$61.00M prn	—	+6.09%	Add
ON 0.5 03.01.29ON Semiconductor Corp	3.5%	$48.57M	—	$40.23M prn	—	—	New
BILL 0 04.01.30Bill Holdings Inc	3.1%	$43.29M	—	$50.00M prn	—	+49.25%	Add
DDOG 0 12.01.29Datadog Inc	3.0%	$42.59M	—	$30.00M prn	—	—	New
Irhythm Holdings IncNo ticker match	3.0%	$42.11M	—	$38.12M prn	—	+5.54%	Add
Post Hldgs IncNo ticker match	2.8%	$39.47M	—	$38.01M prn	—	+30.12%	Add
Halozyme Therapeutics IncNo ticker match	2.8%	$39.05M	—	$35.00M prn	—	+83.70%	Add
DASH 0 05.15.30Doordash Inc	2.5%	$34.40M	—	$35.00M prn	—	—	New
SNOW 0 10.01.27Snowflake Inc	2.4%	$33.29M	—	$20.00M prn	—	—	New
PENG 2 08.15.30Penguin Solutions Inc	2.0%	$28.36M	—	$10.00M prn	—	-56.52%	Trim
BL 1 06.01.29Blackline Inc	1.8%	$25.85M	—	$28.00M prn	—	—	Hold
DOCN 0 12.01.26Digitalocean Hldgs Inc	1.7%	$23.14M	—	$20.43M prn	—	—	New
AEISAdvanced Energy Inds	1.5%	$20.57M	$283.30	55K	-24.02%	—	New
Travere Therapeutics IncNo ticker match	1.3%	$17.69M	—	$15.00M prn	—	—	New
NEONeoGenomics Inc	0.1%	$1.89M	$19.29	129K	+32.21%	—	New

Weight is the share of the reported 13F value, including options at notional value. “Since Jun 30” compares the latest close with the quarter-end price implied by the filing (value ÷ shares).

Largest buys in 2026 Q2

Akamai Technologies IncNo ticker match≈ $72.10MAdd

ON 0.5 03.01.29ON Semiconductor Corp≈ $48.57MNew

DDOG 0 12.01.29Datadog Inc≈ $42.59MNew

DASH 0 05.15.30Doordash Inc≈ $34.40MNew

SNOW 0 10.01.27Snowflake Inc≈ $33.29MNew

Largest sells in 2026 Q2

ON 0 05.01.27ON 0 05/01/27≈ $126.08MSold

AEIS 2 1/2 09/15/28No ticker match≈ $97.50MSold

AKAM 1 1/8 02/15/29No ticker match≈ $87.99MSold

ITRI 1 3/8 07/15/30No ticker match≈ $35.35MSold

NET 0 08.15.26Cloudflare Inc≈ $23.48MTrim

Source: SEC Form 13F, values as reported by the filer. Filings lag up to 45 days after quarter end and cover only certain long positions. Research only, not investment advice.

Original filing All 13F filings on EDGAR