STEELHEAD PARTNERS LLC — 13F Holdings & Portfolio
CIK 1133521 · latest 13F-HR filed 2026-08-14
STEELHEAD PARTNERS LLC manages $1.40B in 13F-reported U.S. long-equity assets across 25 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are UBER (10.26%), BBIO (8.90%), AKAM (8.57%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 8 new positions, exited 7, added to 10, and trimmed 1.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
SUITE 3700
SEATTLE, WA 98104
$1.40B
Long-equity book
25
Distinct positions
2026-06-30
Filed 2026-08-14
+8 / −7 / ↑10 / ↓1
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- Akamai Technologies Inc$73.7M +158.7%
- Uber Technologies Inc$23.1M +19.1%
- Varonis Sys Inc$22.6M +64.7%
- Halozyme Therapeutics Inc$19.2M +97.0%
- Bill Holdings Inc$13.4M +44.9%
New Positions
- ON Semiconductor Corp$48.6M
- Datadog Inc$42.6M
- Doordash Inc$34.4M
- Snowflake Inc$33.3M
- Digitalocean Hldgs Inc$23.1M
Exited Positions
- ON 0 05/01/27$126.1M
- AEIS 2 1/2 09/15/28$97.5M
- AKAM 1 1/8 02/15/29$88.0M
- ITRI 1 3/8 07/15/30$35.4M
- LMAT 2 1/2 02/01/30$13.5M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | Uber Technologies Inc | UBER | 90353TAM2 | $143.9M | 10.26% | 120,000,000 | PRN |
| 2 | Bridgebio Pharma Inc | BBIO | 10806XAB8 | $124.8M | 8.90% | 70,000,000 | PRN |
| 3 | Akamai Technologies Inc | AKAM | 00971TAL5 | $120.2M | 8.57% | 100,000,000 | PRN |
| 4 | Alarm Com Hldgs Inc | ALRM | 011642AD7 | $85.5M | 6.10% | 90,000,000 | PRN |
| 5 | LCI Inds | LCII | 501812AD3 | $79.1M | 5.64% | 70,500,000 | PRN |
| 6 | Alnylam Pharmaceuticals Inc | ALNY | 02043QAB3 | $78.2M | 5.57% | 65,000,000 | PRN |
| 7 | Dexcom Inc | DXCM | 252131AM9 | $77.5M | 5.53% | 82,850,000 | PRN |
| 8 | Nutanix Inc | NTNX | 67059NAH1 | $73.5M | 5.24% | 65,000,000 | PRN |
| 9 | Cloudflare Inc | NET | 18915MAC1 | $64.4M | 4.60% | 50,000,000 | PRN |
| 10 | Varonis Sys Inc | VRNS | 922280AD4 | $57.6M | 4.10% | 59,140,000 | PRN |
| 11 | Workiva Inc | WK | 98139AAD7 | $57.3M | 4.09% | 61,000,000 | PRN |
| 12 | ON Semiconductor Corp | ON | 682189AU9 | $48.6M | 3.46% | 40,226,000 | PRN |
| 13 | Bill Holdings Inc | BILL | 090043AF7 | $43.3M | 3.09% | 50,000,000 | PRN |
| 14 | Datadog Inc | DDOG | 23804LAD5 | $42.6M | 3.04% | 30,000,000 | PRN |
| 15 | Irhythm Holdings Inc | IRTC | 450056AB2 | $42.1M | 3.00% | 38,122,000 | PRN |
| 16 | Post Hldgs Inc | POST | 737446AT1 | $39.5M | 2.81% | 38,014,000 | PRN |
| 17 | Halozyme Therapeutics Inc | HALO | 40637HAD1 | $39.1M | 2.79% | 35,000,000 | PRN |
| 18 | Doordash Inc | DASH | 25809KAB1 | $34.4M | 2.45% | 35,000,000 | PRN |
| 19 | Snowflake Inc | SNOW | 833445AB5 | $33.3M | 2.37% | 20,000,000 | PRN |
| 20 | Penguin Solutions Inc | PENG | 83205YAE4 | $28.4M | 2.02% | 10,000,000 | PRN |
| 21 | Blackline Inc | BL | 09239BAF6 | $25.8M | 1.84% | 28,000,000 | PRN |
| 22 | Digitalocean Hldgs Inc | DOCN | 25402DAB8 | $23.1M | 1.65% | 20,427,000 | PRN |
| 23 | Advanced Energy Inds | AEIS | 007973100 | $20.6M | 1.47% | 55,174 | SH |
| 24 | Travere Therapeutics Inc | TVTX | 89422GAB3 | $17.7M | 1.26% | 15,000,000 | PRN |
| 25 | NeoGenomics Inc | NEO | 64049M209 | $1.9M | 0.13% | 129,200 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $1.40B | 25 | 0001133521-26-000013 |
| 2026-03-31 | 2026-05-13 | $1.39B | 24 | 0001133521-26-000011 |
| 2025-12-31 | 2026-02-13 | $1.35B | 24 | 0001133521-26-000006 |
| 2025-09-30 | 2025-11-14 | $1.67B | 30 | 0001133521-25-000013 |