Arosa Capital Management LP: 13F holdings, Q2 2026
Hedge fund · SEC EDGAR filings (CIK 1596053) · Explore on the interactive board
Arosa Capital Management LP disclosed 22 US equity positions worth $114.6m in its Q2 2026 13F filing (holdings as of June 30, 2026, filed August 14, 2026). Its largest position is VICR at 41.4% of the reported book, followed by MPWR, POWI. The top ten holdings are 90.9% of the book, and the portfolio behaves like about 5 equal-weight positions. Versus the prior filing it opened 6 new positions, added to 1, reduced 12 and exited 25. Note: this manager's most recent filing is 3934 quarters behind the newest quarter on file, so these figures are history rather than current positioning.
What does Arosa Capital Management LP own? Top holdings as of June 30, 2026
Change is measured in shares against the previous filing (Q1 2026), so price moves do not read as decisions. This quarter: 6 new, 1 added, 12 reduced, 25 exited.
| # | Stock | Sector | Weight | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|---|
| 1 | VICR VICOR CORP | Technology | 41.4% | $47.5m | 125,000 | -20% | reduced |
| 2 | MPWR MONOLITHIC PWR SYS INC | Technology | 14.5% | $16.6m | 12,000 | 167% | added |
| 3 | POWI POWER INTEGRATIONS INC | Technology | 9.1% | $10.5m | 125,000 | – | new |
| 4 | Q QNITY ELECTRONICS INC | Technology | 7.1% | $8.2m | 50,000 | – | new |
| 5 | WMB WILLIAMS COS INC | Energy | 3.9% | $4.5m | 60,000 | -20% | reduced |
| 6 | BW BABCOCK & WILCOX ENTERPRISES | 3.4% | $3.9m | 275,000 | -52% | reduced | |
| 7 | ROG ROGERS CORP | Technology | 3.1% | $3.6m | 22,000 | -50% | reduced |
| 8 | CEVA CEVA INC | Technology | 2.9% | $3.3m | 70,000 | – | new |
| 9 | SEI SOLARIS ENERGY INFRAS INC | Energy | 2.8% | $3.2m | 40,000 | -33% | reduced |
| 10 | AMBA AMBARELLA INC | Technology | 2.6% | $3.0m | 35,000 | – | new |
| 11 | FLEX FLEX LTD | Technology | 1.4% | $1.6m | 10,000 | – | new |
| 12 | AXTI AXT INC | Technology | 1.1% | $1.3m | 17,500 | -79% | reduced |
| 13 | MTRN MATERION CORP | Basic Materials | 1.0% | $1.2m | 4,000 | -84% | reduced |
| 14 | EOSE EOS ENERGY ENTERPRISES INC | Industrials | 1.0% | $1.2m | 200,000 | -72% | reduced |
| 15 | KULR TECHNOLOGY GROUP INC | 1.0% | $1.1m | 300,000 | 0% | held | |
| 16 | NEOV NEOVOLTA INC | 0.9% | $1.0m | 320,000 | – | new | |
| 17 | AOSL ALPHA & OMEGA SEMICONDUCTOR | Technology | 0.6% | $710.0k | 15,000 | -50% | reduced |
| 18 | TGEN TECOGEN INC NEW | 0.6% | $652.5k | 125,000 | -64% | reduced | |
| 19 | TERRESTRIAL ENERGY INC | 0.5% | $591.5k | 175,000 | 0% | held | |
| 20 | EAGLE NUCLEAR ENERGY CORP | 0.5% | $566.0k | 390,375 | -48% | reduced | |
| 21 | GWH ESS TECH INC | 0.5% | $522.5k | 550,000 | -40% | reduced | |
| 22 | NET POWER INC | 0.0% | $30.8k | 106,249 | 0% | held |
What did Arosa Capital Management LP sell? Positions exited since the previous filing
| Stock | Prior weight | Prior value |
|---|---|---|
| ECG EVERUS CONSTR GROUP | 17.4% | $10.4m |
| CCJ CAMECO CORP | 11.9% | $7.1m |
| PWR QUANTA SVCS INC | 8.7% | $5.2m |
| STRL STERLING INFRASTRUCTURE INC | 5.5% | $3.3m |
| E ENI SPA | 5.2% | $3.1m |
| UUUU ENERGY FUELS INC | 4.7% | $2.8m |
| FPS FORGENT POWER SOLUTIONS INC | 4.2% | $2.5m |
| XLI SELECT SECTOR SPDR TR | 4.2% | $2.5m |
| LAC LITHIUM AMERS CORP NEW | 3.6% | $2.2m |
| MWH SOLV ENERGY INC | 3.3% | $2.0m |
| TSSI TSS INC DEL | 3.3% | $2.0m |
| ATOM ATOMERA INC | 3.1% | $1.9m |
| NVT NVENT ELEC PLC | 3.0% | $1.8m |
| OPTX SYNTEC OPTICS HLDGS INC | 2.9% | $1.8m |
| LGN LEGENCE CORP | 2.8% | $1.7m |
| VST VISTRA CORP | 2.6% | $1.5m |
| BWXT BWX TECHNOLOGIES INC | 1.7% | $1.0m |
| RDW REDWIRE CORPORATION | 1.7% | $1.0m |
| USAR USA RARE EARTH INC | 1.6% | $983.8k |
| HUT HUT 8 CORP | 1.6% | $938.2k |
| ASPI ASP ISOTOPES INC | 1.5% | $884.0k |
| CLSK CLEANSPARK INC | 1.4% | $851.0k |
| AVAV AEROVIRONMENT INC | 1.2% | $732.2k |
| KTOS KRATOS DEFENSE & SEC SOLUTIO | 1.2% | $705.1k |
| ASTI ASCENT SOLAR TECHNOLOGIES IN | 1.0% | $591.0k |
Sector mix
| Sector | Weight |
|---|---|
| Technology | 83.9% |
| Energy | 6.7% |
| Basic Materials | 1.0% |
| Industrials | 1.0% |
Sectors cover positions whose ticker resolved to a sector; the remainder is unclassified, not cash.
Filing history
How concentrated is Arosa Capital Management LP's portfolio?
Across every quarter Arosa Capital Management LP has filed, its median largest position is 28.9% of the book and its median top-ten weight is 72.6%, which WhaleCreep classifies as concentrated (the gate is a median largest position of 5%). Of 33.0 completed holding spells, the median lasted 1.0 quarters; 22.0 positions are still open and their final length is unknown.