Insider Trading › LSXMK › Insiders
LSXMK
LSXMK·Insider activity
$22.29
+0.00 (+0.00%)
Close · Oct 7, 2026 · Close Prices from Tiingo.com
LSXMK
Insider purchases and sales on the price
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
LSXMKS&P 500 (rebased)
Insider BuyInsider SellForm 144 · planned sale
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
No open-market insider purchases or sales of LSXMK were filed in the last 180 days. Newest filing May 1, 2024 (2 years ago).
Net Insider Buying by Quarter
Shares bought (+) or sold (−) on the open market by LSXMK insiders · Form 4 · last two years
No open-market insider buys or sells in the last two years.
On Record
$0Purchases · 180 days
$0Sales · 180 days
99Open-market transactions on record
0Insiders filing · 180 days
Purchases (code P) and sales (code S) of LSXMK common stock reported on Form 4, with Form 5 annual catch-ups. Grants, option exercises, gifts and tax withholding are not shown. Dollars are shares × the stated price; a price outside anything the stock traded at that day is withheld (n/c).
Insider Transactions
99 on record · newest trade first
AllPurchasesSalesOfficers & directors
| Insider | Type | Shares | Price | Value | Held after | Traded | Filed | |
|---|---|---|---|---|---|---|---|---|
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +311.6K | $25.47 | $7.9M | 70.0Mindirect | Apr 29, 2024 | May 1, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +277.2K | $24.34 | $6.7M | 69.7Mindirect | Apr 26, 2024 | Apr 26, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +227.5K | $24.36 | $5.5M | 69.4Mindirect | Apr 25, 2024 | Apr 26, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +142.3K | $25.16 | $3.6M | 69.2Mindirect | Apr 24, 2024 | Apr 26, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +413.2K | $25.58 | $10.6M | 69.0Mindirect | Apr 12, 2024 | Apr 12, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +208.0K | $26.13 | $5.4M | 68.6Mindirect | Apr 11, 2024 | Apr 12, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +513.1K | $25.96 | $13.3M | 68.4Mindirect | Apr 10, 2024 | Apr 12, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +938.9K | $26.98 | $25.3M | 67.9Mindirect | Apr 8, 2024 | Apr 8, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +234.7K | $27.21 | $6.4M | 67.0Mindirect | Apr 5, 2024 | Apr 8, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +1.3M | $27.76 | $34.7M | 66.7Mindirect | Apr 4, 2024 | Apr 8, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +3,408 | $29.50 | $101K | 65.5Mindirect | Mar 28, 2024 | Mar 28, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +217.7K | $29.25 | $6.4M | 65.5Mindirect | Mar 27, 2024 | Mar 28, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +7.4M | $29.10 | $214.7M | 65.3Mindirect | Mar 26, 2024 | Mar 28, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +199.7K | $28.82 | $5.8M | 57.9Mindirect | Mar 25, 2024 | Mar 25, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +742.9K | $28.75 | $21.4M | 57.7Mindirect | Mar 22, 2024 | Mar 25, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +333.9K | $28.92 | $9.7M | 56.9Mindirect | Mar 21, 2024 | Mar 25, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +4.7M | $29.82 | $140.8M | 56.6Mindirect | Mar 12, 2024 | Mar 12, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +186.6K | $29.83 | $5.6M | 51.9Mindirect | Mar 11, 2024 | Mar 12, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +1.0M | $29.72 | $30.3M | 51.7Mindirect | Mar 8, 2024 | Mar 12, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +1.2M | $29.39 | $34.9M | 50.7Mindirect | Mar 6, 2024 | Mar 6, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +761.2K | $29.22 | $22.2M | 49.5Mindirect | Mar 5, 2024 | Mar 6, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +234.2K | $28.77 | $6.7M | 48.7Mindirect | Mar 4, 2024 | Mar 6, 2024 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +175.8K | $30.70 | $5.4M | 48.5Mindirect | Feb 1, 2024 | Feb 1, 2024 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +356.5K | $30.36 | $10.8M | 48.3Mindirect | Jan 31, 2024 | Feb 1, 2024 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +495.7K | $30.12 | $14.9M | 48.0Mindirect | Jan 30, 2024 | Feb 1, 2024 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +139.1K | $30.99 | $4.3M | 47.5Mindirect | Jan 25, 2024 | Jan 25, 2024 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +213.4K | $30.99 | $6.6M | 47.3Mindirect | Jan 24, 2024 | Jan 25, 2024 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +650.2K | $30.96 | $20.1M | 47.1Mindirect | Jan 23, 2024 | Jan 25, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +499.6K | $30.47 | $15.2M | 46.5Mindirect | Jan 17, 2024 | Jan 17, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +586.4K | $30.40 | $17.8M | 46.0Mindirect | Jan 16, 2024 | Jan 17, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +505.2K | $30.33 | $15.3M | 45.4Mindirect | Jan 12, 2024 | Jan 17, 2024 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase Amended | +740.0K | $30.02 | $22.2M | 44.9Mindirect | Jan 4, 2024 | Jan 18, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +740.0K | $30.02 | $22.2M | 44.9Mindirect | Jan 4, 2024 | Jan 4, 2024 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase Amended | +312.0K | $29.98 | $9.4M | 44.1Mindirect | Jan 3, 2024 | Jan 18, 2024 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase Amended | +272.6K | $29.53 | $8.1M | 43.8Mindirect | Jan 3, 2024 | Jan 18, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +312.0K | $29.98 | $9.4M | 44.1Mindirect | Jan 3, 2024 | Jan 4, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +272.6K | $29.53 | $8.1M | 43.8Mindirect | Jan 3, 2024 | Jan 4, 2024 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase Amended | +344.6K | $29.19 | $10.1M | 43.6Mindirect | Jan 2, 2024 | Jan 18, 2024 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +344.6K | $29.19 | $10.1M | 43.6Mindirect | Jan 2, 2024 | Jan 4, 2024 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +450.0K | $37.35 | $16.8M | 35.7Mindirect | Jun 1, 2020 | Jun 3, 2020 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +450.0K | $37.35 | $16.8M | 35.7Mindirect | Jun 1, 2020 | Jun 3, 2020 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +45.5K | $36.48 | $1.7M | 35.2Mindirect | May 29, 2020 | May 29, 2020 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +672.0K | $35.82 | $24.1M | 35.2Mindirect | May 29, 2020 | May 29, 2020 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +45.5K | $36.48 | $1.7M | 35.2Mindirect | May 29, 2020 | May 29, 2020 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +672.0K | $35.82 | $24.1M | 35.2Mindirect | May 29, 2020 | May 29, 2020 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +49.8K | $36.74 | $1.8M | 34.5Mindirect | May 28, 2020 | May 29, 2020 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +932.3K | $36.30 | $33.8M | 34.5Mindirect | May 28, 2020 | May 29, 2020 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +49.8K | $36.74 | $1.8M | 34.5Mindirect | May 28, 2020 | May 29, 2020 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +932.3K | $36.30 | $33.8M | 34.5Mindirect | May 28, 2020 | May 29, 2020 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +129.1K | $36.43 | $4.7M | 33.5Mindirect | May 27, 2020 | May 29, 2020 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +545.5K | $36.15 | $19.7M | 33.4Mindirect | May 27, 2020 | May 29, 2020 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +129.1K | $36.43 | $4.7M | 33.5Mindirect | May 27, 2020 | May 29, 2020 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +545.5K | $36.15 | $19.7M | 33.4Mindirect | May 27, 2020 | May 29, 2020 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +795.4K | $33.44 | $26.6M | 32.9Mindirect | May 26, 2020 | May 26, 2020 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +795.4K | $33.44 | $26.6M | 32.9Mindirect | May 26, 2020 | May 26, 2020 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +312.9K | $32.34 | $10.1M | 32.1Mindirect | May 22, 2020 | May 26, 2020 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +312.9K | $32.34 | $10.1M | 32.1Mindirect | May 22, 2020 | May 26, 2020 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +605.9K | $32.08 | $19.4M | 31.8Mindirect | May 21, 2020 | May 26, 2020 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +302.8K | $31.46 | $9.5M | 31.2Mindirect | May 21, 2020 | May 26, 2020 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +605.9K | $32.08 | $19.4M | 31.8Mindirect | May 21, 2020 | May 26, 2020 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +302.8K | $31.46 | $9.5M | 31.2Mindirect | May 21, 2020 | May 26, 2020 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +226.0K | $41.42 | $9.4M | 31.1Mindirect | May 31, 2017 | May 31, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +226.0K | $41.42 | $9.4M | 31.1Mindirect | May 31, 2017 | May 31, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +278.6K | $41.58 | $11.6M | 30.9Mindirect | May 30, 2017 | May 31, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +278.6K | $41.58 | $11.6M | 30.9Mindirect | May 30, 2017 | May 31, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +116.8K | $41.74 | $4.9M | 30.6Mindirect | May 26, 2017 | May 31, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +22.8K | $40.99 | $935K | 30.5Mindirect | May 26, 2017 | May 31, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +116.8K | $41.74 | $4.9M | 30.6Mindirect | May 26, 2017 | May 31, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +22.8K | $40.99 | $935K | 30.5Mindirect | May 26, 2017 | May 31, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +353.1K | $40.12 | $14.2M | 30.4Mindirect | May 25, 2017 | May 25, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +353.1K | $40.12 | $14.2M | 30.4Mindirect | May 25, 2017 | May 25, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +151.6K | $39.65 | $6.0M | 30.1Mindirect | May 24, 2017 | May 25, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +151.6K | $39.65 | $6.0M | 30.1Mindirect | May 24, 2017 | May 25, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +162.5K | $38.93 | $6.3M | 29.9Mindirect | May 23, 2017 | May 25, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +162.5K | $38.93 | $6.3M | 29.9Mindirect | May 23, 2017 | May 25, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +208.0K | $38.50 | $8.0M | 29.8Mindirect | May 22, 2017 | May 22, 2017 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +208.0K | $38.50 | $8.0M | 29.8Mindirect | May 22, 2017 | May 22, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +232.1K | $38.21 | $8.9M | 29.6Mindirect | May 19, 2017 | May 22, 2017 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +232.1K | $38.21 | $8.9M | 29.6Mindirect | May 19, 2017 | May 22, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +224.4K | $37.64 | $8.4M | 29.3Mindirect | May 18, 2017 | May 22, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +15.4K | $36.81 | $567K | 29.1Mindirect | May 18, 2017 | May 22, 2017 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +224.4K | $37.64 | $8.4M | 29.3Mindirect | May 18, 2017 | May 22, 2017 | Form 4 ↗ |
| BERKSHIRE HATHAWAY INC10% owner | Purchase | +15.4K | $36.81 | $567K | 29.1Mindirect | May 18, 2017 | May 22, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +580.9K | $36.28 | $21.1M | 29.1Mindirect | May 17, 2017 | May 17, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +580.9K | $36.28 | $21.1M | 29.1Mindirect | May 17, 2017 | May 17, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +315.0K | $36.60 | $11.5M | 28.5Mindirect | May 16, 2017 | May 17, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +315.0K | $36.60 | $11.5M | 28.5Mindirect | May 16, 2017 | May 17, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +971.6K | $36.48 | $35.4M | 28.2Mindirect | May 15, 2017 | May 17, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +971.6K | $36.48 | $35.4M | 28.2Mindirect | May 15, 2017 | May 17, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +1.3M | $40.62 | $52.4M | 27.2Mindirect | Apr 24, 2017 | Apr 24, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +1.0M | $39.91 | $40.3M | 25.9Mindirect | Apr 24, 2017 | Apr 24, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +1.3M | $40.62 | $52.4M | 27.2Mindirect | Apr 24, 2017 | Apr 24, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +1.0M | $39.91 | $40.3M | 25.9Mindirect | Apr 24, 2017 | Apr 24, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +1.2M | $39.61 | $48.5M | 24.9Mindirect | Apr 21, 2017 | Apr 24, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +1.2M | $39.61 | $48.5M | 24.9Mindirect | Apr 21, 2017 | Apr 24, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +85.1K | $39.09 | $3.3M | 23.7Mindirect | Apr 20, 2017 | Apr 24, 2017 | Form 4 ↗ |
| WESCHLER, R. TED | Purchase | +265.4K | $38.70 | $10.3M | 23.6Mindirect | Apr 20, 2017 | Apr 24, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +85.1K | $39.09 | $3.3M | 23.7Mindirect | Apr 20, 2017 | Apr 24, 2017 | Form 4 ↗ |
| BUFFETT WARREN E10% owner | Purchase | +265.4K | $38.70 | $10.3M | 23.6Mindirect | Apr 20, 2017 | Apr 24, 2017 | Form 4 ↗ |
Source: SEC EDGAR Form 4 and Form 5 filings, SEC's quarterly bulk dataset through Jun 30, 2026, and KeyVex's half-hourly read of new filings since. Every row links its filing. Amendments are marked. Nothing here is a recommendation. All insider activity, market-wide →