What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
CIK: 0001133521
Total reported value
$1.4B
$1.4B
24 檔
33.7%
According to the latest 13F quarterly dataset, Steelhead Partners LLC managed an equity portfolio of $1.4B at the end of Q4 2025, spanning 24 distinct U.S. exchange-listed positions.
Steelhead Partners LLC executed strategic sector rebalancing during Q4 2025, establishing 4 new positions while fully exiting 10 holdings and trimming 4 positions.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | ON 0 05-01-27Bond | On Semiconductor CORP | Bond | 8.83% | -9.06% | EXIT | |
| 2 | NET 0 08-15-26Bond | Cloudflare Inc | Bond | 7.28% | -1.31% | +68.00% | |
| 3 | AKAM 1.125 02-15-29Bond | Akamai Technologies Inc | Bond | 6.40% | -6.32% | EXIT | |
| 4 | ALRM 2.25 06-01-29Bond | Alarm.com Hldgs Inc | Bond | 6.34% | +0.12% | +12.50% | |
| 5 | BL 1 06-01-29Bond | Blackline Inc | Bond | 6.02% | -0.05% | — | |
| 6 | DXCM 0.375 05-15-28Bond | Dexcom Inc | Bond | 5.64% | +0.03% | — | |
| 7 | NTNX 0.25 10-01-27Bond | Nutanix Inc | Bond | 5.41% | +0.47% | — | |
| 8 | UBER 0.875 12-01-28 2028Bond | Uber Technologies Inc | Bond | 5.28% | +1.57% | +5.77% | |
| 9 | JAZZ 2 06-15-26Bond | Jazz Investments I LTD | Bond | 5.14% | — | +14.29% | |
| 10 | AKAM 0.375 09-01-27Bond | Akamai Technologies Inc | Bond | 5.07% | +5.23% | +4.85% | |
| 11 | BILL 0 04-01-30Bond | Bill Holdings Inc | Bond | 4.97% | +0.94% | — | |
| 12 | AEIS 2.5 09-15-28Bond | Advanced Energy Ind | Bond | 4.85% | -7.01% | EXIT | |
| 13 | BOX 0 01-15-26Bond | Box Inc | Bond | 4.63% | — | — | |
| 14 | CFLT 0 01-15-27Bond | Confluent Inc | Bond | 4.39% | — | +22.08% | |
| 15 | TRIP 0.25 04-01-26Bond | Tripadvisor Inc | Bond | 3.49% | — | — | |
| 16 | SEALTD 0.25 09-15-26Bond | Sea LTD | Bond | 3.23% | — | -35.71% | |
| 17 | ITRI 1.375 07-15-30Bond | Itron Inc | Bond | 3.00% | -2.54% | EXIT | |
| 18 | PENG 2 08-15-30Bond | Penguin Solutions Inc | Bond | 2.27% | +0.36% | — | |
| 19 | ETSY 0.25 06-15-28Bond | Etsy Inc | Bond | 2.26% | — | -18.57% | |
| 20 | PRGS 1 04-15-26Bond | Progress Software CORP | Bond | 1.84% | — | — | |
| 21 | FIVN 1 03-15-29Bond | Five9 Inc | Bond | 1.67% | -0.56% | EXIT | |
| 22 | VRNS 1 09-15-29Bond | Varonis System Inc | Bond | 1.03% | +1.59% | -57.14% | |
| 23 | LMAT 2.5 02-01-30Bond | Lemaitre Vascular Inc | Bond | 0.88% | -0.97% | EXIT | |
| 24 | VOYG | Voyager Technologies Inc-a | Stock-Other | 0.08% | -0.07% | EXIT |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ON 0 05-01-27Bond | On Semiconductor CORP | +5.9% | +135.29% | Add |
| 2 | NET 0 08-15-26Bond | Cloudflare Inc | +3.6% | +68.00% | Add |
| 3 | AKAM 1.125 02-15-29Bond | Akamai Technologies Inc | +2.5% | +25.00% | Add |
| 4 | JAZZ 2 06-15-26Bond | Jazz Investments I LTD | +1.8% | +14.29% | Add |
| 5 | ALRM 2.25 06-01-29Bond | Alarm.com Hldgs Inc | +1.7% | +12.50% | Add |
| 6 | CFLT 0 01-15-27Bond | Confluent Inc | +1.6% | +22.08% | Add |
| 7 | AKAM 0.375 09-01-27Bond | Akamai Technologies Inc | +1.3% | +4.85% | Add |
| 8 | BL 1 06-01-29Bond | Blackline Inc | +1.2% | — | Unchanged |
| 9 | DXCM 0.375 05-15-28Bond | Dexcom Inc | +1.1% | — | Unchanged |
| 10 | ITRI 1.375 07-15-30Bond | Itron Inc | +0.7% | +21.21% | Add |
| 11 | UBER 0.875 12-01-28 2028Bond | Uber Technologies Inc | +0.7% | +5.77% | Add |
| 12 | TRIP 0.25 04-01-26Bond | Tripadvisor Inc | +0.7% | — | Unchanged |
| 13 | BOX 0 01-15-26Bond | Box Inc | +0.6% | — | Unchanged |
| 14 | FIVN 1 03-15-29Bond | Five9 Inc | +0.4% | +6.38% | Add |
| 15 | PRGS 1 04-15-26Bond | Progress Software CORP | +0.3% | — | Unchanged |
| 16 | PENG 2 08-15-30Bond | Penguin Solutions Inc | +0.1% | — | Unchanged |
| 17 | ETSY 0.25 06-15-28Bond | Etsy Inc | 0% | -18.57% | Trim |
| 18 | AEIS 2.5 09-15-28Bond | Advanced Energy Ind | -0.5% | -38.21% | Trim |
| 19 | SEALTD 0.25 09-15-26Bond | Sea LTD | -0.8% | -35.71% | Trim |
| 20 | VRNS 1 09-15-29Bond | Varonis System Inc | -1.3% | -57.14% | Trim |
| 21 | HALO 0.25 03-01-27Bond | Halozyme Therapeutics In | — | EXIT | Sold out |
| 22 | ITRI 0 03-15-26Bond | Itron Inc | — | EXIT | Sold out |
| 23 | UBER 0 12-15-25Bond | Uber Technologies Inc | — | EXIT | Sold out |
| 24 | NTNX 0.25 10-01-27Bond | Nutanix Inc | — | NEW | New buy |
| 25 | SPOT 0 03-15-26Bond | Spotify USA Inc | — | EXIT | Sold out |
| 26 | BILL 0 04-01-30Bond | Bill Holdings Inc | — | NEW | New buy |
| 27 | DBX 0 03-01-26Bond | Dropbox Inc | — | EXIT | Sold out |
| 28 | ON 0.5 03-01-29Bond | On Semiconductor CORP | — | EXIT | Sold out |
| 29 | BBIO 2.25 02-01-29Bond | Bridgebio Pharma Inc | — | EXIT | Sold out |
| 30 | ENPH 0 03-01-28Bond | Enphase Energy Inc | — | EXIT | Sold out |
| 31 | UPWK 0.25 08-15-26Bond | Upwork Inc | — | EXIT | Sold out |
| 32 | LMAT 2.5 02-01-30Bond | Lemaitre Vascular Inc | — | NEW | New buy |
| 33 | VOYG | Voyager Technologies Inc-a | — | NEW | New buy |
| 34 | HTZ | Hertz Global Hldgs Inc | — | EXIT | Sold out |
According to official SEC Form 13F filings, Steelhead Partners LLC reported a total U.S. public equity portfolio value of $1.4B across 24 disclosed positions in Q4 2025.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including ON 0 05-01-27, NET 0 08-15-26, AKAM 1.125 02-15-29) accounted for 33.7% of total reported equity market value during Q4 2025.
Top New Position Initiated
NTNX 0.25 10-01-27
市值: $73.2M
Top Position Liquidated / Trimmed
HALO 0.25 03-01-27
前期市值: $128.0M
During Q4 2025, Steelhead Partners LLC's top holdings by market value included ON 0 05-01-27 (8.8%)、NET 0 08-15-26 (7.3%)、AKAM 1.125 02-15-29 (6.4%). The largest single position, ON 0 05-01-27, represented 8.8% of total portfolio value.
In Q4 2025, Steelhead Partners LLC made 28 total portfolio adjustments, initiating 4 new buys, adding to 10 positions, trimming 4 holdings, and fully liquidating 10 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.