GAYNER THOMAS SINNICKSON

Average Profitability
<0.0001%
Insider Buys Quantity
26
Insider Buys Sum
$19.77M
Insider Sells Quantity
1
Insider Sells Sum
$8.26M

Insider Activity of GAYNER THOMAS SINNICKSON

According to the SEC Form 4 filings, GAYNER THOMAS SINNICKSON, being in a position of

  1. director at Graham Holdings Company,
    оver the last 12 months, has bought 100 shares for $74,330, and sold 0 shares,
    over all time since 2021-11-11, has bought 500 shares for $309,717, and sold 0 shares.

The largest purchase of all time was on 2022-06-01 and amounted to 5000 shares of Cable One, Inc. for $6.46M.

The largest sale of all time was on 2016-02-16 and amounted to 10000 shares of Markel Corporation for $8.26M.

Biography of GAYNER THOMAS SINNICKSON

No biography is available at this moment.

2024-11-01PurchaseMarkel Corporation
MKL
Chief Executive Officer
100
0.0008%
$1,549.72$154,972+6.91%
2024-09-12PurchaseGraham Holdings Company
GHC
director
100
0.0023%
$743.30$74,330+8.62%
2024-02-02PurchaseMarkel Corporation
MKL
Chief Executive Officer
100
0.0007%
$1,414.74$141,474+10.27%
2023-11-09PurchaseGraham Holdings Company
GHC
director
100
0.0022%
$607.24$60,724+20.22%
2023-11-03PurchaseMarkel Corporation
MKL
Chief Executive Officer
100
0.0007%
$1,311.92$131,192+12.66%
2023-09-08PurchaseGraham Holdings Company
GHC
director
100
0.0021%
$569.83$56,983+23.97%
2023-08-04PurchaseMarkel Corporation
MKL
Chief Executive Officer
100
0.0008%
$1,479.47$147,947+0.8%
2023-05-09PurchaseGraham Holdings Company
GHC
director
100
0.0021%
$581.63$58,163+5.36%
2023-05-02PurchaseMarkel Corporation
MKL
Chief Executive Officer
50
0.0004%
$1,359.93$67,997+7%
2023-03-06PurchaseCable One, Inc.
CABO
director
100
0.0018%
$709.30$70,930-8.41%
2023-02-03PurchaseMarkel Corporation
MKL
Chief Executive Officer
25
0.0002%
$1,317.18$32,930+3.75%
2022-11-14PurchaseCable One, Inc.
CABO
director
5,000
0.0873%
$714.72$3.57M-3.92%
2022-11-09PurchaseCable One, Inc.
CABO
director
5,000
0.0893%
$639.97$3.2M+10.03%
2022-11-08PurchaseMarkel Corporation
MKL
Co-Chief Executive Officer
50
0.0004%
$1,230.60$61,530+11.18%
2022-11-08PurchaseCable One, Inc.
CABO
director
5,000
0.0896%
$673.75$3.37M+4.83%
2022-09-12PurchaseCable One, Inc.
CABO
director
500
0.0087%
$1,094.74$547,370-35.23%
2022-09-06PurchaseCable One, Inc.
CABO
500
0.0087%
$1,106.44$553,220-35.75%
2022-08-29PurchaseCable One, Inc.
CABO
500
0.0087%
$1,177.75$588,875-39.11%
2022-08-24PurchaseCable One, Inc.
CABO
50
0.0009%
$1,225.00$61,250-41.55%
2022-08-04PurchaseMarkel Corporation
MKL
Co-Chief Executive Officer
50
0.0004%
$1,202.46$60,123+11.45%
Company
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