LuminArx Capital Management LP — 13F Holdings & Portfolio
CIK 1992915 · latest 13F-HR filed 2026-08-14
LuminArx Capital Management LP manages $224.4M in 13F-reported U.S. long-equity assets across 118 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are SPY (26.62%), TJX (5.74%), CIFR (5.00%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 38 new positions, exited 48, added to 8, and trimmed 4.
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.
$224.4M
Long-equity book
118
Distinct positions
2026-06-30
Filed 2026-08-14
+38 / −48 / ↑8 / ↓4
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
| Name | Title / Status | Ownership | Type |
|---|
Quarter-over-quarter changes
Share-count changes vs the prior 13F.
Top Adds (vs prior quarter)
- State Street SPDR S&P 500 ETF$45.1M +308.3%
- SharonAI Holdings Inc$2.7M +822.4%
- Sonida Senior Living Inc$2.2M +26.5%
- State Street Energy Select Sector SPDR ETF$1.4M +225.1%
- Presidio Production Co$529.4K +19.2%
Top Trims
- iShares Russell 2000 ETF-$15.1M -71.5%
- iShares MSCI Emerging Markets ETF-$451.7K -39.8%
- Bit Digital, Inc-$110.8K -26.0%
- Briacell Therapeutics Corp-$14.2K -22.7%
New Positions
- TJX Companies Inc$12.9M
- Cipher Digital Inc$11.2M
- Target Corp$10.4M
- IREN Ltd$5.9M
- JetBlue Airways Corp$5.5M
Exited Positions
- CIPHER DIGITAL INC$6.2M
- IREN LIMITED$4.6M
- JETBLUE AIRWAYS CORP$2.9M
- ALIBABA GROUP HLDG LTD$2.8M
- STANDARDAERO INC$2.5M
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 | State Street SPDR S&P 500 ETF | SPY | 78462F103 | $59.7M | 26.62% | 80,000 | SH |
| 2 | TJX Companies Inc | TJX | 872540109 | $12.9M | 5.74% | 85,000 | SH |
| 3 | Cipher Digital Inc | CIFR | 17253J106 | $11.2M | 5.00% | 2,000,000 | PRN |
| 4 | Sonida Senior Living Inc | SNDA | 140475203 | $10.6M | 4.70% | 258,750 | SH |
| 5 | Target Corp | TGT | 87612E106 | $10.4M | 4.66% | 80,000 | SH |
| 6 | Bain Capital GSS Investment Corp | BCSS | G0R78B106 | $10.3M | 4.59% | 1,003,379 | SH |
| 7 | K&F Growth Acquisition II Corp | KFIIU | G52258103 | $8.0M | 3.55% | 750,000 | SH |
| 8 | iShares Russell 2000 ETF | IWM | 464287655 | $6.0M | 2.68% | 20,000 | SH |
| 9 | IREN Ltd | IREN | Q4982L109 | $5.9M | 2.61% | 2,000,000 | PRN |
| 10 | JetBlue Airways Corp | JBLU | 477143101 | $5.5M | 2.47% | 5,000,000 | PRN |
| 11 | EQV Ventures Acquisition Corp II | EVAC.U | G3106Q110 | $4.4M | 1.95% | 425,000 | SH |
| 12 | Riot Platforms Inc | RIOT | 767292105 | $4.0M | 1.79% | 2,000,000 | PRN |
| 13 | Sunrun Inc | RUN | 86771W105 | $3.6M | 1.63% | 3,074,000 | PRN |
| 14 | Karman Holdings Inc | KRMN | 485924104 | $3.5M | 1.56% | 70,000 | SH |
| 15 | Presidio Production Co | FTW | 74102N101 | $3.3M | 1.46% | 270,098 | SH |
| 16 | SharonAI Holdings Inc | SHAZ | 778920306 | $3.1M | 1.37% | 36,374 | SH |
| 17 | Babcock & Wilcox Enterprises Inc | BW | 05614L209 | $2.9M | 1.29% | 205,200 | SH |
| 18 | QXO Inc | QXO | 82846H405 | $2.6M | 1.16% | 150,000 | SH |
| 19 | Southern Co | SO | 842587107 | $2.5M | 1.13% | 2,500,000 | PRN |
| 20 | Alibaba Group Holding Ltd | BABA | 01609W102 | $2.4M | 1.05% | 2,000,000 | PRN |
| 21 | Ford Motor Co | F | 345370860 | $2.3M | 1.02% | 165,000 | SH |
| 22 | Whitehawk Minerals Corp | WHK | 96524T101 | $2.2M | 0.97% | 77,852 | SH |
| 23 | ADT Inc | ADT | 00090Q103 | $2.1M | 0.92% | 318,366 | SH |
| 24 | iShares Trust - iShares U.S. Real Estate ETF | IYR | 464287739 | $2.0M | 0.91% | 20,000 | SH |
| 25 | State Street Energy Select Sector SPDR ETF | XLE | 81369Y506 | $2.0M | 0.89% | 37,500 | SH |
| 26 | McEwen Inc | MUX | 58039P305 | $1.9M | 0.86% | 1,000,000 | PRN |
| 27 | Alphabet Inc | GOOGL | 02079K305 | $1.9M | 0.84% | 37,500 | SH |
| 28 | Alphabet Inc | GOOG | 02079K107 | $1.9M | 0.84% | 37,500 | SH |
| 29 | X-Energy Inc | XE | 98386P102 | $1.8M | 0.82% | 100,000 | SH |
| 30 | Snowflake Inc | SNOW | 833445109 | $1.8M | 0.79% | 1,000,000 | PRN |
| 31 | HawkEye 360 Inc | HAWK | 420201105 | $1.7M | 0.74% | 82,500 | SH |
| 32 | Snowflake Inc | SNOW | 833445109 | $1.7M | 0.74% | 1,000,000 | PRN |
| 33 | Southern Co | SO | 842587107 | $1.7M | 0.74% | 1,500,000 | PRN |
| 34 | State Street SPDR S&P Oil & Gas Expl & Prod ETF | XOP | 78468R556 | $1.5M | 0.69% | 10,000 | SH |
| 35 | Evergy Inc | EVRG | 30034W106 | $1.4M | 0.63% | 1,000,000 | PRN |
| 36 | Upstart Holdings Inc | UPST | 91680M107 | $1.2M | 0.55% | 1,500,000 | PRN |
| 37 | Uber Technologies Inc | UBER | 90353T100 | $1.2M | 0.53% | 1,000,000 | PRN |
| 38 | Live Nation Entertainment Inc | LYV | 538034109 | $1.2M | 0.53% | 1,000,000 | PRN |
| 39 | TXO Partners LP | TXO | 87313P103 | $1.0M | 0.46% | 81,733 | SH |
| 40 | Boeing Co | BA | 097023105 | $1.0M | 0.45% | 15,000 | SH |
| 41 | TJX Companies Inc Put | TJX | 872540109 | $960.0K | 0.43% | 200,000 | SH |
| 42 | Nextera Energy Inc | NEE | 65339F101 | $956.0K | 0.43% | 20,000 | SH |
| 43 | Oracle Corp | ORCL | 68389X105 | $921.9K | 0.41% | 20,600 | SH |
| 44 | Joby Aviation Inc | JOBY | G65163100 | $912.0K | 0.41% | 1,000,000 | PRN |
| 45 | KKR & Co Inc | KKR | 48251W104 | $780.0K | 0.35% | 20,000 | SH |
| 46 | Arko Petroleum Corp | APC | 04124A100 | $761.9K | 0.34% | 40,418 | SH |
| 47 | Macerich Co | MAC | 554382101 | $755.7K | 0.34% | 30,000 | SH |
| 48 | Ramaco Resources Inc | METC | 75134P600 | $748.4K | 0.33% | 1,000,000 | PRN |
| 49 | Ares Management Corp | ARES | 03990B101 | $720.0K | 0.32% | 20,000 | SH |
| 50 | State Street SPDR S&P 500 ETF Put | SPY | 78462F103 | $688.8K | 0.31% | 250,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $224.4M | 118 | 0001992915-26-000003 |
| 2026-03-31 | 2026-05-14 | $136.2M | 84 | 0001992915-26-000002 |
| 2025-12-31 | 2026-02-17 | $107.6M | 91 | 0001992915-26-000001 |
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