JAT Capital Mgmt LP — 13F Holdings & Portfolio
CIK 1834438 · latest 13F-HR filed 2026-08-14
JAT Capital Mgmt LP manages $47.4M in 13F-reported U.S. long-equity assets across 16 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are WDC (28.97%), ORCL (15.94%), MU (11.17%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 10 new positions, exited 4, added to 1, 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.
2ND FLOOR
GREENWICH, CT 06830
$47.4M
Long-equity book
16
Distinct positions
2026-06-30
Filed 2026-08-14
+10 / −4 / ↑1 / ↓4
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Trims
- META PLATFORMS INC-$12.4M -97.7%
- AMAZON COM INC-$9.7M -97.0%
- COHERENT CORP-$7.0M -78.1%
- MICRON TECHNOLOGY INC-$6.0M -53.2%
New Positions
- WESTERN DIGITAL CORP$13.7M
- ORACLE CORP$7.6M
- ROBINHOOD MKTS INC$5.2M
- IREN LIMITED$2.4M
- SEAGATE TECHNOLOGY HLDNGS PL$1.3M
Exited Positions
- NVIDIA CORPORATION COM$9.4M
- CONSTELLATION ENERGY CORP COM$2.1M
- CORE SCIENTIFIC INC NEW COM$976.5K
- INTEL CORP COM$919.4K
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 | WESTERN DIGITAL CORP | WDC | 958102105 | $13.7M | 28.97% | 21,500 | SH |
| 2 | ORACLE CORP | ORCL | 68389X105 | $7.6M | 15.94% | 51,560 | SH |
| 3 | MICRON TECHNOLOGY INC | MU | 595112103 | $5.3M | 11.17% | 4,587 | SH |
| 4 | ROBINHOOD MKTS INC | HOOD | 770700102 | $5.2M | 10.87% | 51,372 | SH |
| 5 | APPLIED OPTOELECTRONICS INC | AAOI | 03823U102 | $3.9M | 8.28% | 26,500 | SH |
| 6 | IREN LIMITED | IREN | Q4982L109 | $2.4M | 5.16% | 53,500 | SH |
| 7 | LUMENTUM HLDGS INC | LITE | 55024U109 | $2.0M | 4.25% | 2,350 | SH |
| 8 | COHERENT CORP | COHR | 19247G107 | $2.0M | 4.16% | 5,000 | SH |
| 9 | SEAGATE TECHNOLOGY HLDNGS PL | STX | G7997R103 | $1.3M | 2.83% | 1,390 | SH |
| 10 | MARVELL TECHNOLOGY INC | MRVL | 573874104 | $1.0M | 2.19% | 3,485 | SH |
| 11 | SERVICENOW INC | NOW | 81762P102 | $794.2K | 1.68% | 8,000 | SH |
| 12 | SPACE EXPLORATION TECHN CORP | SPCX | 84615Q103 | $768.9K | 1.62% | 4,500 | SH |
| 13 | VISTRA CORP | VST | 92840M102 | $396.6K | 0.84% | 2,500 | SH |
| 14 | PROSHARES TR II | VIXY | 74347Y730 | $387.5K | 0.82% | 18,202 | SH |
| 15 | AMAZON COM INC | AMZN | 023135106 | $297.9K | 0.63% | 1,250 | SH |
| 16 | META PLATFORMS INC | META | 30303M102 | $285.6K | 0.60% | 507 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $47.4M | 16 | 0001892688-26-000130 |
| 2026-03-31 | 2026-05-15 | $59.3M | 10 | 0001892688-26-000086 |
| 2025-12-31 | 2026-02-17 | $92.9M | 16 | 0001892688-26-000045 |
| 2025-09-30 | 2025-11-14 | $46.3M | 17 | 0001892688-25-000199 |