Mary D Petryszyn

NOC

Mary D Petryszyn serves as director at Northrop Grumman Corporation (NOC). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

1 trades

$18.7K

Total Sells

4 trades

$1.04M

Net Position

Net Seller

$1.02M

Companies Traded

KRMN, NOC

Active Period

Aug 2021 – Sep 2026

5 total trades

Most Recent

Buy KRMN

Sep 18, 2026 · $18.7K

Mary D Petryszyn's Insider Trading at Northrop Grumman Corporation (NOC)

Buys

0 · $0.00

Sells

4 · $1.04M

Total Shares Bought

Total Shares Sold

2,542

NOC Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Feb 17, 2023	Sell	856	$465.92	$398.8K	8,139
Mar 2, 2022	Sell	626	$414.31	$259.4K	7,283
Feb 17, 2022	Sell	168	$384.99	$64.7K	7,909
Aug 9, 2021	Sell	892	$358.65	$319.9K	6,847

Mary D Petryszyn's Insider Trading at Karman Holdings Inc. (KRMN)

Buys

1 · $18.7K

Sells

0 · $0.00

Total Shares Bought

500

Total Shares Sold

KRMN Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Sep 18, 2026	Buy	500	$37.44	$18.7K	2,863

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NOCSell · Feb 17, 2026

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