William M. Lambert

Director, EQT HOLDINGS LIMITED.

Companies

KennametalBoard member Mar 3, 2016 to now¹
MSA SafetyBoard member Dec 3, 2009 to now²
EQT HOLDINGS LIMITEDBoard member Nov 15, 2018 to Jan 3, 2019³
MSA SafetyChair Sep 7, 2017 to Jun 5, 2018⁴
MSA SafetyChief executive officer Jun 9, 2008 to Mar 12, 2018⁵
MSA SafetyPresident Mar 15, 2007 to May 11, 2017⁶
MSA SafetyChief operating officer Mar 15, 2007 to Mar 18, 2008⁶
MSA SafetyVice President Mar 11, 2004 to Mar 6, 2007⁷

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

MSA Safety MSA67,876 shares⁸$12.1M at $178.78Sep 16, 2026
Kennametal KMT82,898 shares⁹$2.6M at $30.83Aug 14, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

Sep 14, 2026Gift 6,000 shares of MSA Safety⁸
Sep 11, 2026Gift 2,000 shares of MSA Safety⁸
Aug 14, 2026Shares withheld for tax 186 shares at $31.22 of Kennametal⁹
Aug 14, 2026Exercised options 6,092 shares at $31.22 of Kennametal⁹
May 13, 2026Granted 899 shares of MSA Safety¹⁰
Feb 18, 2026Shares withheld for tax 7,485 shares at $39.04 of Kennametal¹¹
Feb 18, 2026Exercised options 14,000 shares at $20.87 of Kennametal¹¹
Dec 12, 2025Gift 9,634 shares of MSA Safety¹²
Aug 15, 2025Shares withheld for tax 170 shares at $21.02 of Kennametal¹³
Aug 15, 2025Exercised options 5,566 shares at $21.02 of Kennametal¹³
May 16, 2025Granted 909 shares of MSA Safety¹⁴
Nov 15, 2024Gift 2,200 shares of MSA Safety¹⁵
Aug 15, 2024Shares withheld for tax 145 shares at $25.00 of Kennametal¹⁶
Aug 15, 2024Exercised options 4,766 shares at $25.00 of Kennametal¹⁶
May 15, 2024Granted 755 shares of MSA Safety¹⁷
Nov 27, 2023Gift 3,000 shares of MSA Safety¹⁸
Aug 15, 2023Shares withheld for tax 129 shares at $25.99 of Kennametal¹⁹
Aug 15, 2023Exercised options 4,252 shares at $25.99 of Kennametal¹⁹
May 17, 2023Granted 939 shares of MSA Safety²⁰
May 11, 2023Gift 1,111 shares of MSA Safety²⁰
Nov 15, 2022Gift 2,400 shares of MSA Safety²¹
Nov 15, 2022Gift 2,400 shares of MSA Safety²²
Aug 15, 2022Exercised options 3,977 shares at $27.27 of Kennametal²³
Aug 10, 2022Sold 33,885 shares at $126.60 of MSA Safety²⁴
Aug 10, 2022Sold 9,642 shares at $127.39 of MSA Safety²⁴

Trade performance

Date	Stock	Trade	Value	Return since	Vs S&P since	Vs S&P, 1 year
Aug 10, 2022	MSA	Sale	$6.8M	+43.2%	+40.6%	−31.9%
Aug 9, 2022	MSA	Sale	$3.6M	+44.4%	+43.3%	−30.8%
May 4, 2022	KMT	Buy	$962.5K	+14.4%	−65.4%	+2.8%
Nov 22, 2021	MSA	Sale	$785.5K	+18.0%	+47.1%	−5.4%
Nov 19, 2021	MSA	Sale	$8.5M	+16.7%	+47.9%	−5.5%
Sep 16, 2021	MSA	Sale	$1.5M	+18.3%	+54.3%	+9.7%
Dec 8, 2020	MSA	Sale	$1.1M	+19.7%	+88.7%	+28.6%
Dec 7, 2020	MSA	Sale	$4.7M	+20.5%	+88.6%	+28.3%
Aug 10, 2020	MSA	Sale	$6.7M	+45.5%	+84.4%	+3.3%
Mar 20, 2020	MSA	Sale	$817.5K	+87.7%	+149.6%	+7.3%
Mar 4, 2020	MSA	Sale	$6.0M	+39.2%	+107.5%	+0.9%
Oct 30, 2019	MSA	Sale	$6.3M	+50.9%	+102.9%	−0.5%
Mar 13, 2019	MSA	Sale	$2.5M	+77.5%	+96.8%	−6.2%

Returns are price-only (no dividends), measured from the trade date.

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARKennametal, Board member
2
SEC EDGARMSA Safety, Board member
3
SEC EDGAREQT HOLDINGS LIMITED, Board member
4
SEC EDGARMSA Safety, Chair
5
SEC EDGARMSA Safety, Chief executive officer
6
SEC EDGARMSA Safety, President
7
SEC EDGARMSA Safety, Vice President
8
SEC EDGARMSA Safety shares after the filing of Sep 16, 2026
9
SEC EDGARKennametal shares after the filing of Aug 14, 2026
10
SEC EDGARForm 4 filed May 14, 2026
11
SEC EDGARForm 4 filed Feb 19, 2026
12
SEC EDGARForm 4 filed Dec 16, 2025
13
SEC EDGARForm 4 filed Aug 19, 2025
14
SEC EDGARForm 4 filed May 19, 2025
15
SEC EDGARForm 4 filed Nov 19, 2024
16
SEC EDGARForm 4 filed Aug 19, 2024
17
SEC EDGARForm 4 filed May 16, 2024
18
SEC EDGARForm 4 filed Nov 29, 2023
19
SEC EDGARForm 4 filed Aug 17, 2023
20
SEC EDGARForm 4 filed May 19, 2023
21
SEC EDGARForm 4 filed Apr 6, 2023
22
SEC EDGARForm 4 filed Nov 16, 2022
23
SEC EDGARForm 4 filed Aug 17, 2022
24
SEC EDGARForm 4 filed Aug 11, 2022