LAMBERT WILLIAM M

MSA

LAMBERT WILLIAM M serves as Director at MSA Safety Incorporated (MSA). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

1 trades

$962.5K

Total Sells

4 trades

$21.51M

Net Position

Net Seller

$20.55M

Companies Traded

KMT, MSA

Active Period

Sep 2021 – Feb 2026

5 total trades

Most Recent

Sell KMT

Feb 18, 2026 · $292.2K

LAMBERT WILLIAM M's Insider Trading at MSA Safety Incorporated (MSA)

Buys

0 · $0.00

Sells

3 · $21.22M

Total Shares Bought

Total Shares Sold

151,686

MSA Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Aug 11, 2022	Sell	81,916	$126.69	$10.38M	95,318
Nov 23, 2021	Sell	59,770	$155.67	$9.30M	46,320
Sep 16, 2021	Sell	10,000	$153.67	$1.54M	60,000

LAMBERT WILLIAM M's Insider Trading at Kennametal Inc. (KMT)

Buys

1 · $962.5K

Sells

1 · $292.2K

Total Shares Bought

36,698

Total Shares Sold

7,485

KMT Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Feb 18, 2026	Sell	7,485	$39.04	$292.2K	0
May 5, 2022	Buy	36,698	$26.23	$962.5K	52,360

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KMTSell · Sep 8, 2026

HARSHMAN RICHARD J

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Nishan J. Vartanian

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Jonathan D. Buck

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BECK JULIE A

officer: Chief Financial Officer

MSABuy · Jun 12, 2026

Sagar A Patel

director

KMTSell · Jun 9, 2026

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