Key evidence
3 tracked funds new or increased
Himalaya Capital Management, Renaissance Technologies, and Thrive Capital reported higher share exposure in the latest comparable filing.
Tracked-fund evidence brief
What changed
Reported 13F changes, stored open-market Form 4/5 activity, and dated EOD closes—kept separate so each claim can be checked.
Ranked focus
Reported conviction
- 1 SPCX Space Exploration Technologies Corp. 3.3%
- 2 AMZN Amazon.com Inc. 3.1%
- 3 GOOG(L) Alphabet Inc. 3.0%
- 4 BRK.{A,B} Berkshire Hathaway Inc. 2.3%
- 5 CVNA Carvana Co. 1.8%
- 6 SPY SPDR S&P 500 ETF TR 1.7%
- 7 INTC Intel Corp. 1.6%
- 8 META Meta Platforms Inc. 1.5%
Equal-weight reported portfolio concentration. This is a research ranking, not a recommendation.
- Tracked holders
- 13 latest available 13Fs
- New / increased
- 3 comparable filings
- Reported weight
- 2.31% equal-weight concentration
- EOD close
- $758,506.00 Sep 25, 2026
BRK.A · EOD close
Stored close history
Counter-evidence
5 tracked funds decreased or exited
Gates Foundation Trust, Ruane Cunniff, and Gotham Asset Management reported lower or zero share exposure in the latest comparable filing.
Receipts
Source receipts
One latest 13F
Tudor Investment Corp · Q2 2026 · 0000902664-26-003485
SEC Form 40001193125-26-349574
EOD close
End-of-day market data · Sep 25, 2026
Latest available filing per fund
Fund movement
| Fund | Movement | Reported shares | Portfolio weight | Report period | Source |
|---|---|---|---|---|---|
| Gates Foundation Trust | Decreased | — | 21.35% | SEC | |
| Himalaya Capital Management | Increased | — | 14.98% | SEC | |
| Ruane Cunniff | Decreased | — | 3.54% | SEC | |
| Gotham Asset Management | Decreased | — | 0.14% | SEC | |
| Tudor Investment Corp | Decreased | — | 0.07% | SEC | |
| Akre Capital Management | Decreased | — | 0.08% | SEC | |
| Renaissance Technologies | Increased | — | 0.00% | SEC | |
| Thrive Capital | Increased | — | 0.01% | SEC |
Latest stored open-market activity
Form 4/5 evidence
- O'Sullivan Michael J. See Remarks Open market buy $22.1K
- O'Sullivan Michael J. See Remarks Open market buy $205.0K
- O'Sullivan Michael J. See Remarks Open market buy $23.0K
- Michael J. O'Sullivan See Remarks Open market buy $24.9K
- Michael J. O'Sullivan See Remarks Open market buy $225.6K