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US INSIDER PROFILE · NON-SCORING RESEARCH
BERKSHIRE HATHAWAY INC
10% Owner
Identity: SEC owner CIK matched through an unambiguous cached owner-name crosswalk · Reporting-owner CIK: 0001067983
Purchase history
- Companies traded
- 4
- Purchases · 12M
- 4
- Purchases · 24M
- 15
- Average purchase
- $100.3M
- Median purchase
- $54.0M
- Gross purchase value
- $1.5B
Companies: LENNAR CORP /NEW/ | OCCIDENTAL PETROLEUM CORP /DE/ | SIRIUS XM HOLDINGS INC. | VERISIGN INC/CA
15 SEC accession(s) · 15 joint-owner event(s). Values are reported Form 4 transaction values in USD.
Qualifying purchase disclosures
| Published | Company | Ticker | Role | Reported value | SEC source |
|---|---|---|---|---|---|
| 2026-10-05 | LENNAR CORP /NEW/ | LEN | 10% Owner | $192.6M | Open filing |
| 2026-09-30 | LENNAR CORP /NEW/ | LEN | 10% Owner | $53.9M | Open filing |
| 2026-09-25 | LENNAR CORP /NEW/ | LEN | 10% Owner | $136.4M | Open filing |
| 2026-09-21 | LENNAR CORP /NEW/ | LEN, LEN.B | 10% Owner | $212.4M | Open filing |
| 2025-08-04 | SIRIUS XM HOLDINGS INC. | SIRI | 10% Owner | $106.4M | Open filing |
| 2025-02-11 | OCCIDENTAL PETROLEUM CORP /DE/ | OXY | 10% Owner | $35.7M | Open filing |
| 2025-02-03 | SIRIUS XM HOLDINGS INC. | SIRI | 10% Owner | $54.0M | Open filing |
| 2025-01-03 | VERISIGN INC/CA | VRSN | 10% Owner | $4.1M | Open filing |
| 2024-12-30 | VERISIGN INC/CA | VRSN | 10% Owner | $15.6M | Open filing |
| 2024-12-26 | VERISIGN INC/CA | VRSN | 10% Owner | $28.5M | Open filing |
| 2024-12-19 | OCCIDENTAL PETROLEUM CORP /DE/ | OXY | 10% Owner | $409.2M | Open filing |
| 2024-12-19 | VERISIGN INC/CA | VRSN | 10% Owner | $45.4M | Open filing |
| 2024-12-19 | SIRIUS XM HOLDINGS INC. | SIRI | 10% Owner | $107.2M | Open filing |
| 2024-10-31 | SIRIUS XM HOLDINGS INC. | SIRI | 10% Owner | $60.7M | Open filing |
| 2024-10-18 | SIRIUS XM HOLDINGS INC. | SIRI | 10% Owner | $42.1M | Open filing |
Post-purchase outcomes
Excess return = stock return − S&P 500 ETF (SPY adjusted close) return. Returns start on the first shared trading session on or after publication.
No completed point-in-time price outcome is available yet.
Research patterns
- First purchase in 12M
- 1/12
- Large purchase ≥ $100k
- 15/15
- Cluster buying · 15D
- 15/15
- Buying the dip
- 0/—
Routine / opportunistic: Not classifiable. These labels never affect the score or ranking.
Small samples remain visible but are not scored. This research enrichment never affects US-v1.1.