Login
Super Investors JAT Capital Mgmt LP
JC

JAT Capital Mgmt LP

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$47.4M
Positions
16
Quarter ended
June 30, 2026
Filed
August 14, 2026

Reported portfolio value by quarter (19 quarters reported)

$803M $30.6M
Q4 21 Q4 22 Q4 23 Q4 24 Q4 25 Q2 26

$336M in Q4 2021 → $47.4M now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
Western Digital Corp 29.0% New 21,500 $13.7M
Oracle Corp 15.9% New 51,560 $7.56M
Micron Technology Inc 11.2% Trimmed 86% 4,587 $5.29M
RM Robinhood Mkts Inc 10.9% New 51,372 $5.15M
Applied Optoelectronics Inc 8.3% Added 165% 26,500 $3.93M
Iren Limited 5.2% New 53,500 $2.45M
LH Lumentum Hldgs Inc 4.3% Trimmed 22% 2,350 $2.02M
Coherent Corp 4.2% Trimmed 87% 5,000 $1.97M
ST Seagate Technology Hldngs Pl 2.8% New 1,390 $1.34M
Marvell Technology Inc 2.2% New 3,485 $1.04M
Servicenow Inc 1.7% New 8,000 $794K
SE Space Exploration Techn Corp 1.6% New 4,500 $769K
Vistra Corp 0.8% New 2,500 $397K
PT Proshares Tr Ii 0.8% New 18,202 $388K
Amazon Com Inc 0.6% Trimmed 97% 1,250 $298K
Meta Platforms Inc 0.6% Trimmed 98% 507 $286K

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 14, 2026

Company Action Shares changed Value of change % of portfolio
Micron Technology Inc Trimmed −28,913 −$33.4M 11.2%
Western Digital Corp New +21,500 +$13.7M 29.0%
Coherent Corp Trimmed −32,847 −$13M 4.2%
Meta Platforms Inc Trimmed −21,600 −$12.2M 0.6%
Amazon Com Inc Trimmed −46,718 −$11.1M 0.6%
NC Nvidia Corporation Com Exited −54,000 −$9.42M —
Oracle Corp New +51,560 +$7.56M 15.9%
RM Robinhood Mkts Inc New +51,372 +$5.15M 10.9%
Iren Limited New +53,500 +$2.45M 5.2%
Applied Optoelectronics Inc Added +16,486 +$2.44M 8.3%

Showing the 10 largest of 20 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 15, 2026

Company Action Shares changed Value of change % of portfolio
Bloom Energy Corp Exited −156,125 −$13.6M —
Netflix Inc Exited −140,000 −$13.1M —
MP Meta Platforms Inc Cl A New +22,107 +$12.6M 21.3%
RM Robinhood Mkts Inc Exited −110,443 −$12.5M —
AC Amazon Com Inc Com New +47,968 +$9.99M 16.8%
MT Micron Technology Inc Com Added +29,000 +$9.8M 19.1%
Tesla Inc Exited −21,000 −$9.44M —
NC Nvidia Corporation Com New +54,000 +$9.42M 15.9%
CC Coherent Corp Com New +37,847 +$9.02M 15.2%
Celestica Inc Exited −27,250 −$8.06M —

Showing the 10 largest of 23 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 17, 2026

Company Action Shares changed Value of change % of portfolio
Bloom Energy Corp New +156,125 +$13.6M 14.6%
Netflix Inc New +140,000 +$13.1M 14.1%
RM Robinhood Mkts Inc Added +98,443 +$11.1M 13.4%
Tesla Inc New +21,000 +$9.44M 10.2%
Unity Software Inc Exited −205,882 −$8.24M —
CS Core Scientific Inc New New +515,042 +$7.5M 8.1%
Amazon Com Inc Exited −28,000 −$6.15M —
Etsy Inc Exited −90,000 −$5.98M —
Palantir Technologies Inc New +29,000 +$5.15M 5.5%
Celestica Inc Added +17,150 +$5.07M 8.7%

Showing the 10 largest of 28 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 14, 2025

Company Action Shares changed Value of change % of portfolio
Tesla Inc Exited −34,200 −$10.9M —
Unity Software Inc New +205,882 +$8.24M 17.8%
CS Core Scientific Inc New Exited −396,658 −$6.77M —
Amazon Com Inc New +28,000 +$6.15M 13.3%
Roblox Corp New +40,599 +$5.62M 12.2%
Etsy Inc Added +80,150 +$5.32M 12.9%
Dell Technologies Inc Exited −32,500 −$3.98M —
Palantir Technologies Inc Exited −27,500 −$3.75M —
Reddit Inc New +10,850 +$2.5M 5.4%
Celestica Inc New +10,100 +$2.49M 5.4%

Showing the 10 largest of 28 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 14, 2025

Company Action Shares changed Value of change % of portfolio
CS Core Scientific Inc New Trimmed −7,108,692 −$121M 22.1%
Hut 8 Corp Trimmed −2,347,883 −$43.7M 4.9%
Celestica Inc Exited −508,524 −$40.1M —
Oracle Corp Exited −172,500 −$24.1M —
Palantir Technologies Inc Trimmed −168,631 −$23M 12.3%
Constellation Energy Corp Exited −113,062 −$22.8M —
Vistra Corp Exited −189,716 −$22.3M —
Reddit Inc Exited −204,007 −$21.4M —
CS Core Scientific Inc New Exited −2,500,500 −$18.1M —
Tesla Inc New +34,200 +$10.9M 35.5%

Showing the 10 largest of 29 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 15, 2025

Company Action Shares changed Value of change % of portfolio
Applied Optoelectronics Inc Exited −1,851,730 −$68.3M —
Constellation Energy Corp Trimmed −228,020 −$46M 8.1%
Celestica Inc New +508,524 +$40.1M 14.2%
Applovin Corp Exited −114,081 −$36.9M —
Constellation Energy Corp Exited −140,000 −$31.3M —
Coherent Corp Exited −297,185 −$28.2M —
Mastec Inc Exited −173,814 −$23.7M —
Vistra Corp New +189,716 +$22.3M 7.9%
Amazon Com Inc Exited −87,500 −$19.2M —
Carvana Co Exited −86,545 −$17.6M —

Showing the 10 largest of 50 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 14, 2025

Company Action Shares changed Value of change % of portfolio
Reddit Inc Trimmed −408,476 −$66.8M 2.8%
Applied Optoelectronics Inc Added +1,399,575 +$51.6M 10.8%
Constellation Energy Corp Added +189,013 +$42.3M 12.1%
Bloom Energy Corp Trimmed −1,890,484 −$42M 1.1%
Elastic N V Trimmed −415,549 −$41.2M 0.8%
Roku Inc Exited −540,577 −$40.4M —
Roblox Corp Trimmed −607,985 −$35.2M 0.1%
Nvidia Corporation Exited −287,717 −$34.9M —
Hut 8 Corp Trimmed −1,577,218 −$32.3M 3.4%
Constellation Energy Corp New +140,000 +$31.3M 5.0%

Showing the 10 largest of 58 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 14, 2024

Company Action Shares changed Value of change % of portfolio
Constellation Energy Corp Exited −495,000 −$99.1M —
Micron Technology Inc Exited −501,795 −$66M —
Constellation Energy Corp Trimmed −212,468 −$55.2M 6.4%
CS Core Scientific Inc New Added +3,671,374 +$43.5M 8.8%
First Solar Inc Exited −152,500 −$34.4M —
Roku Inc Added +445,777 +$33.3M 6.5%
Hut 8 Corp New +2,631,337 +$32.3M 5.2%
Elastic N V Added +399,175 +$30.6M 5.8%
IE Iris Energy Ltd Exited −2,403,782 −$27.1M —
LN Live Nation Entertainment In Trimmed −224,046 −$24.5M —

Showing the 10 largest of 63 changes.

Create Account

Sign up for free to unlock this feature.

Already have an account? Sign in

Premium Feature

This feature requires a premium subscription to unlock unlimited historical data and advanced analysis tools.

Premium includes:

  • Unlimited historical financial data
  • Advanced analytics and insights
  • Priority support