BUFFETT WARREN E (CIK 315090) reported 69 SEC Form 4 insider transactions across 6 companies over the past 18 months (most recent 2026-05-20). Recent activity: Buy BRK.A (37,500 shares), Sell BRK.A (18,646 shares), Sell BRK.A (18,646 shares), Sell LLYVA/K (20,226 shares), Sell LLYVA/K (44,100 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-20 | BERKSHIRE HATHAWAY INC (BRK.A) | Director | Buy | 37,500 | $0 |
| 2026-05-20 | BERKSHIRE HATHAWAY INC (BRK.A) | Director | Sell | 18,646 | $0 |
| 2026-05-20 | BERKSHIRE HATHAWAY INC (BRK.A) | Director | Sell | 18,646 | $0 |
| 2026-02-17 | Liberty Live Holdings, Inc. (LLYVA/K) | Insider | Sell | 20,226 | $1.7M |
| 2026-02-17 | Liberty Live Holdings, Inc. (LLYVA/K) | Insider | Sell | 44,100 | $3.6M |
| 2026-02-17 | Liberty Live Holdings, Inc. (LLYVA/K) | Insider | Sell | 65,071 | $5.4M |
| 2026-02-17 | Liberty Live Holdings, Inc. (LLYVA/K) | Insider | Sell | 18,689 | $1.5M |
| 2026-02-17 | Liberty Live Holdings, Inc. (LLYVA/K) | Insider | Sell | 66,568 | $5.5M |
| 2026-02-17 | Liberty Live Holdings, Inc. (LLYVA/K) | Insider | Sell | 30,643 | $2.5M |
| 2026-02-17 | Liberty Live Holdings, Inc. (LLYVA/K) | Insider | Sell | 59,411 | $5.0M |
| 2026-02-17 | Liberty Live Holdings, Inc. (LLYVA/K) | Insider | Sell | 18,125 | $1.5M |
| 2026-02-17 | Liberty Live Holdings, Inc. (LLYVA/K) | Insider | Sell | 7,685 | $643,388 |
| 2026-02-02 | DAVITA INC. (DVA) | Insider | Sell | 1.7M | $199.9M |
| 2025-11-12 | BERKSHIRE HATHAWAY INC (BRK.A) | Chairman and CEO | Buy | 2.7M | $0 |
| 2025-11-12 | BERKSHIRE HATHAWAY INC (BRK.A) | Chairman and CEO | Sell | 1.5M | $0 |
| 2025-11-12 | BERKSHIRE HATHAWAY INC (BRK.A) | Chairman and CEO | Sell | 400,000 | $0 |
| 2025-11-12 | BERKSHIRE HATHAWAY INC (BRK.A) | Chairman and CEO | Sell | 400,000 | $0 |
| 2025-11-12 | BERKSHIRE HATHAWAY INC (BRK.A) | Chairman and CEO | Sell | 400,000 | $0 |
| 2025-10-29 | DAVITA INC. (DVA) | Insider | Sell | 401,514 | $54.3M |
| 2025-08-04 | SIRIUS XM HOLDINGS INC. (SIRI) | Insider | Buy | 2.0M | $41.6M |
| 2025-08-04 | SIRIUS XM HOLDINGS INC. (SIRI) | Insider | Buy | 85,389 | $1.8M |
| 2025-08-04 | SIRIUS XM HOLDINGS INC. (SIRI) | Insider | Buy | 1.9M | $40.6M |
| 2025-08-04 | SIRIUS XM HOLDINGS INC. (SIRI) | Insider | Buy | 1.0M | $22.4M |
| 2025-08-04 | DAVITA INC. (DVA) | Insider | Sell | 1.6M | $230.0M |
| 2025-08-01 | VERISIGN INC/CA (VRSN) | Insider | Sell | 4.3M | $1.21B |
Source: SEC Form 4 filings · as of 2026-05-20