Joseph P Platt JR

CNR

Joseph P Platt JR serves as Director at Core Natural Resources, Inc. (CNR). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

1 trades

$64.9K

Total Sells

2 trades

$1.74M

Net Position

Net Seller

$1.67M

Companies Traded

GLRE, CNR

Active Period

May 2022 – Nov 2025

3 total trades

Most Recent

Buy GLRE

Nov 18, 2025 · $64.9K

Joseph P Platt JR's Insider Trading at Core Natural Resources, Inc. (CNR)

Buys

0 · $0.00

Sells

2 · $1.74M

Total Shares Bought

Total Shares Sold

24,404

CNR Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Sep 19, 2023	Sell	10,227	$98.33	$1.01M	33,957
May 25, 2022	Sell	14,177	$51.45	$729.4K	44,637

Joseph P Platt JR's Insider Trading at Greenlight Capital Re, Ltd. (GLRE)

Buys

1 · $64.9K

Sells

0 · $0.00

Total Shares Bought

5,000

Total Shares Sold

GLRE Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Nov 18, 2025	Buy	5,000	$12.97	$64.9K	0

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