Aug 21, 2026
2-day lag
Exercise
Aug 19, 2026
Options to purchase common stock on Common Stock
Cyr William B.
Insider
Chief Executive Officer
9,030 shares @ $0
Indirect ownership
$0
SEC Form 4
›
Aug 21, 2026
2-day lag
Exercise
Aug 19, 2026
Series C Common Stock
Robinson Jill L.
Insider
EVP, CFO & Treasurer
30,263 shares @ $27.18
Direct ownership
$822.55K
SEC Form 4
›
Same filing as the row above
Sale
Aug 19, 2026
30,263 shares @ $52.84
Direct ownership
$1.6M
›
Same filing as the row above
Exercise
Aug 19, 2026
Stock option (Right to Buy) - BATRK on Series C Common Stock
30,263 shares @ $0
Direct ownership
$0
›
Aug 21, 2026
1-day lag
Buy
Aug 20, 2026
Common Stock
Horizon Kinetics Asset Management...
Insider
10% owner
756 shares @ $2.95
Direct ownership
$2.23K
SEC Form 4
›
Aug 21, 2026
Same-day filing
Other
Aug 21, 2026
Common Stock
George Georgette R.
Insider
Director
9,858 shares @ $0
Indirect ownership
$0
SEC Form 4
›
Aug 21, 2026
1-day lag
Sale
Aug 20, 2026
Common Stock - Direct
Fetsko Michael
Insider
Pres., Freight Components Grp.
288 shares @ $293.84
Direct ownership
$84.63K
SEC Form 4
›
Same filing as the row above
Sale
Aug 20, 2026
2,962 shares @ $293.16
Direct ownership
$868.33K
›
Aug 21, 2026
1-day lag
Award
Aug 20, 2026
Common Stock
Harvey Joseph M
Insider
Chief Executive Officer
1,338 shares @ $0
Direct ownership
$0
SEC Form 4
›
Aug 21, 2026
2-day lag
Buy
Aug 19, 2026
Class A Common Stock
Seidl Randy
Insider
Chief Executive Officer
110,000 shares @ $0.95
Direct ownership
$104.22K
SEC Form 4
›
Aug 21, 2026
1-day lag
Buy
Aug 20, 2026
Common Stock
Horizon Kinetics Asset Management...
Insider
10% owner
1 shares @ $377.85
Direct ownership
$377.85
SEC Form 4
›
Aug 21, 2026
1-day lag
Disposition
Aug 20, 2026
Common Stock
Morse Laurence C
Insider
Director
8024.7 shares @ $0
Direct ownership
$0
SEC Form 4
›
Same filing as the row above
Disposition
Aug 20, 2026
18,808 shares @ $0
Indirect ownership
$0
›
Aug 21, 2026
1-day lag
Sale
Aug 20, 2026
Common Stock
Halvorsen Laila Cecilie
Insider
Chief Financial Officer
50,000 shares @ $20
Direct ownership
$1M
SEC Form 4
›
Aug 21, 2026
1-day lag
Sale
Aug 20, 2026
Common Stock
Shao Sean
Insider
Director
4,533 shares @ $2.28
Direct ownership
$10.34K
SEC Form 4
›
Same filing as the row above
Sale
Aug 20, 2026
5,000 shares @ $2.45
Direct ownership
$12.25K
›
Same filing as the row above
Sale
Aug 20, 2026
5,000 shares @ $2.39
Direct ownership
$11.95K
›
Aug 21, 2026
1-day lag
Sale
Aug 20, 2026
Class A ordinary shares
Wang Yanjun
Insider
Cco And GC
27 shares @ $119
Indirect ownership
$3.21K
SEC Form 4
›
Same filing as the row above
Sale
Aug 20, 2026
493 shares @ $117.18
Indirect ownership
$57.77K
›
Same filing as the row above
Sale
Aug 20, 2026
362 shares @ $116.09
Indirect ownership
$42.02K
›
Same filing as the row above
Sale
Aug 20, 2026
618 shares @ $117.75
Indirect ownership
$72.77K
›
Same filing as the row above
Sale
Aug 19, 2026
282 shares @ $116.97
Indirect ownership
$32.99K
›
Same filing as the row above
Sale
Aug 19, 2026
276 shares @ $119.58
Indirect ownership
$33K
›
Same filing as the row above
Sale
Aug 19, 2026
253 shares @ $115.91
Indirect ownership
$29.33K
›
Same filing as the row above
Sale
Aug 19, 2026
417 shares @ $117.9
Indirect ownership
$49.16K
›