Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 67 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

67 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
March 14, 2024 LECO S 21,654 $246.13 $5,329,699 169,103 Direct -11.35% Disposed 11.5% (price as of 2026-10-02)
March 14, 2024 LECO S 26,871 $246.94 $6,635,525 142,232 Direct -15.89% Disposed 11.1% (price as of 2026-10-02)
March 14, 2024 LECO S 30,032 $247.97 $7,447,035 112,200 Direct -21.11% Disposed 10.7% (price as of 2026-10-02)
March 14, 2024 LECO S 4,833 $248.67 $1,201,822 107,367 Direct -4.31% Disposed 10.3% (price as of 2026-10-02)
March 14, 2024 LECO S 100 $249.45 $24,945 107,267 Direct -0.09% Disposed 10.0% (price as of 2026-10-02)
March 13, 2024 LECO S 19,972 $248.50 $4,963,042 163,660 Direct -10.88% Disposed 10.4% (price as of 2026-10-02)
March 13, 2024 LECO S 16,269 $249.66 $4,061,719 147,391 Direct -9.94% Disposed 9.9% (price as of 2026-10-02)
March 13, 2024 LECO S 30,032 $250.57 $7,525,118 117,359 Direct -20.38% Disposed 9.5% (price as of 2026-10-02)
March 13, 2024 LECO S 8,653 $251.57 $2,176,835 108,706 Direct -7.37% Disposed 9.1% (price as of 2026-10-02)
March 13, 2024 LECO S 1,439 $252.38 $363,175 107,267 Direct -1.32% Disposed 8.7% (price as of 2026-10-02)
March 5, 2024 LECO S 2,800 $252.19 $706,132 121,906 Direct -2.25% Disposed 8.8% (price as of 2026-10-02)
March 5, 2024 LECO S 7,705 $252.89 $1,948,517 114,201 Direct -6.32% Disposed 8.5% (price as of 2026-10-02)
March 5, 2024 LECO S 6,934 $253.72 $1,759,294 107,267 Direct -6.07% Disposed 8.1% (price as of 2026-10-02)
Feb. 22, 2024 LECO S 31,514 $247.16 $7,789,000 141,647 Direct -18.20% Disposed 11.0% (price as of 2026-10-02)
Feb. 22, 2024 LECO S 16,137 $247.91 $4,000,524 125,510 Direct -11.39% Disposed 10.7% (price as of 2026-10-02)
Feb. 22, 2024 LECO S 18,243 $248.64 $4,535,940 107,267 Direct -14.54% Disposed 10.4% (price as of 2026-10-02)
Feb. 21, 2024 LECO S 3,300 $244.39 $806,487 105,730 Direct -3.03% Disposed 12.3% (price as of 2026-10-02)
Feb. 21, 2024 LECO S 6,153 $245.06 $1,507,854 99,577 Direct -5.82% Disposed 12.0% (price as of 2026-10-02)
Feb. 21, 2024 LECO S 200 $245.85 $49,170 99,377 Direct -0.20% Disposed 11.6% (price as of 2026-10-02)
Dec. 12, 2023 LECO S 40,859 $206.77 $8,448,415 142,371 Direct -22.30% Disposed 32.7% (price as of 2026-10-02)
Dec. 12, 2023 LECO S 27,751 $207.55 $5,759,720 114,620 Direct -19.49% Disposed 32.2% (price as of 2026-10-02)
June 14, 2023 LECO S 10,859 $195.07 $2,118,265 180,384 Direct -5.68% Disposed 40.7% (price as of 2026-10-02)
June 14, 2023 LECO S 51,929 $194.36 $10,092,920 191,243 Direct -21.35% Disposed 41.2% (price as of 2026-10-02)
June 14, 2023 LECO S 26,242 $193.58 $5,079,926 243,172 Direct -9.74% Disposed 41.7% (price as of 2026-10-02)
March 6, 2023 LECO S 14,625 $171.77 $2,512,136 180,384 Direct -7.50% Disposed 59.7% (price as of 2026-10-02)
March 7, 2022 LECO S 7,000 $128.92 $902,440 168,460 Direct -3.99% Disposed 112.8% (price as of 2026-10-02)
March 7, 2022 LECO S 2,000 $127.94 $255,880 175,460 Direct -1.13% Disposed 114.5% (price as of 2026-10-02)
March 7, 2022 LECO S 533 $126.87 $67,622 177,460 Direct -0.30% Disposed 116.3% (price as of 2026-10-02)
Nov. 23, 2021 LECO S 4,000 $145.50 $582,000 154,119 Direct -2.53% Disposed 88.6% (price as of 2026-10-02)
Nov. 23, 2021 LECO S 30,000 $144.84 $4,345,200 158,119 Direct -15.95% Disposed 89.4% (price as of 2026-10-02)
Nov. 22, 2021 LECO S 19,371 $147.57 $2,858,578 154,119 Direct -11.17% Disposed 85.9% (price as of 2026-10-02)
Nov. 22, 2021 LECO S 15,245 $146.77 $2,237,509 173,490 Direct -8.08% Disposed 86.9% (price as of 2026-10-02)
Nov. 22, 2021 LECO S 41,974 $145.76 $6,118,130 188,735 Direct -18.19% Disposed 88.2% (price as of 2026-10-02)

Showing latest 100 of 220 transactions

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
May 8, 2026 TKR Restricted Share Unit Common Stock (1,280) $0.00 May 8, 2027 1,280 Acquired
May 2, 2025 TKR Restricted Share Unit Common Stock (2,270) $0.00 May 2, 2026 2,270 Acquired
May 3, 2024 TKR Restricted Share Unit Common Stock (1,660) $0.00 May 3, 2025 1,660 Acquired
March 14, 2024 LECO Employee Stock Option (Right to Buy) Common Shares (83,490) $89.63 Feb. 19, 2030 83,490 Acquired
March 13, 2024 LECO Employee Stock Option (Right to Buy) Common Shares (76,365) $88.44 Feb. 18, 2029 76,365 Acquired
Feb. 22, 2024 LECO Employee Stock Option (Right to Buy) Common Shares (65,894) $90.70 Feb. 21, 2028 65,894 Disposed
Feb. 20, 2024 LECO Employee Stock Option (Right to Buy) Common Shares (28,419) $246.99 Feb. 20, 2034 28,419 Acquired
Dec. 12, 2023 LECO Employee Stock Option (Right to Buy) Common Shares (68,610) $85.30 Feb. 22, 2027 68,610 Disposed
Dec. 12, 2023 LECO Deferred Shares Common Shares · · 65,764 Disposed
June 14, 2023 LECO Employee Stock Option (Right to Buy) Common Stock (89,030) $58.14 Feb. 17, 2026 89,030 Disposed
May 5, 2023 TKR Restricted Share Unit Common Stock (1,845) $0.00 May 5, 2024 1,845 Acquired
Feb. 15, 2023 LECO Employee Stock Option (Right to Buy) Common Shares (44,761) $175.97 Feb. 15, 2033 44,761 Acquired
May 6, 2022 TKR Restricted Share Unit Common Stock (2,310) $0.00 May 6, 2023 2,310 Acquired
Feb. 16, 2022 LECO Employee Stock Option (Right to Buy) Common Shares (67,057) $128.03 Feb. 16, 2032 67,057 Acquired
Nov. 23, 2021 LECO Employee Stock Option (Right to Buy) Common Stock (34,000) $69.67 Feb. 5, 2025 34,000 Disposed
Nov. 22, 2021 LECO Employee Stock Option (Right to Buy) Common Stock (32,550) $69.67 Feb. 5, 2025 32,550 Disposed
Nov. 22, 2021 LECO Employee Stock Option (Right to Buy) Common Stock (44,040) $71.30 Dec. 16, 2023 44,040 Disposed
May 7, 2021 TKR Restricted Share Unit Common Stock (1,340) $0.00 May 7, 2022 1,340 Acquired
Feb. 17, 2021 LECO Employee Stock Option (Right to Buy) Common Shares (81,413) $114.27 Feb. 17, 2031 81,413 Acquired
Dec. 14, 2020 LECO Deferred Shares Common Shares · · 93,208 Disposed
Nov. 2, 2020 LECO Employee Stock Option (Right to Buy) Common Stock (47,480) $47.91 Dec. 13, 2022 47,480 Disposed
May 8, 2020 TKR Restricted Share Unit Common Stock (3,160) $0.00 May 8, 2021 3,160 Acquired
Feb. 19, 2020 LECO Employee Stock Option (Right to Buy) Common Shares (83,490) $89.63 Feb. 19, 2030 83,490 Acquired
Dec. 13, 2019 LECO Employee Stock Option (Right to Buy) Common Stock (28,500) $35.55 Nov. 2, 2021 28,500 Disposed
May 10, 2019 TKR Restricted Share Unit Common Stock (2,425) $0.00 May 10, 2020 2,425 Acquired
Feb. 18, 2019 LECO Employee Stock Option (Right to Buy) Common Shares (76,365) $88.44 Feb. 18, 2029 76,365 Acquired
May 8, 2018 TKR Common Stock (Restricted) Common Stock (2,525) $0.00 May 8, 2019 2,525 Acquired
Feb. 21, 2018 LECO Employee Stock Option (Right to Buy) Common shares (65,894) $90.70 Feb. 21, 2028 65,894 Acquired
Feb. 22, 2017 LECO Employee Stock Option Right to Buy Common Shares (68,610) $85.30 Feb. 22, 2027 68,610 Acquired
Dec. 7, 2016 LECO Employee Stock Option Right to Buy Common Shares (38,153) $33.06 Sept. 1, 2021 38,153 Disposed
Feb. 17, 2016 LECO Employee Stock Option (Right to Buy) Common Shares (89,030) $58.14 Feb. 17, 2026 89,030 Acquired
Feb. 5, 2015 LECO Employee stock Option (Right to Buy) Common Shares (66,550) $69.67 Feb. 5, 2025 66,550 Acquired
Dec. 16, 2013 LECO Employee Stock Option (Right to Buy) Common Shares (44,040) $71.30 Dec. 16, 2023 44,040 Acquired
Dec. 13, 2012 LECO Employee Stock Option (Right to Buy) Common Shares (47,480) $47.91 Dec. 13, 2022 47,480 Acquired
Nov. 2, 2011 LECO Employee Stock Option (Right to Buy) Common Shares (28,500) $35.55 Nov. 2, 2021 28,500 Acquired
Sept. 1, 2011 LECO Employee Stock Option (Right to Buy) Common Shares (38,153) $33.06 Sept. 1, 2021 38,153 Acquired
Feb. 11, 2011 AOS Restricted Stock Units Common Stock (7,050) · · 7,050 Disposed
Feb. 9, 2011 AOS Employee Stock Options (Right to Buy) Common Stock (46,350) $15.99 Sept. 22, 2014 46,350 Disposed
Feb. 7, 2011 AOS Restricted Stock Units Common Stock (4,600) $43.12 · 4,600 Acquired
Feb. 7, 2011 AOS Employee Stock Options (Right to Buy) Common Stock (12,000) $43.12 Feb. 7, 2021 12,000 Acquired
Feb. 9, 2010 AOS Phantom Stock Common Stock (4,700) · · 4,700 Disposed
Feb. 8, 2010 AOS Restricted Stock Units Common Stock (3,600) $41.90 · 3,600 Acquired
Feb. 8, 2010 AOS Employee Stock Options (Right to Buy) Common Stock (9,900) $41.90 Feb. 8, 2020 9,900 Acquired
Feb. 9, 2009 AOS Restricted Stock Units Common Stock (6,100) $28.50 · 6,100 Acquired
Feb. 9, 2009 AOS Employee Stock Options (Right to Buy) Common Stock (21,300) $28.50 Feb. 9, 2019 21,300 Acquired
Oct. 22, 2008 AOS Phantom Stock Common Stock (8,100) · · 8,100 Disposed
Feb. 11, 2008 AOS Phantom Stock (Restricted Stock Units) Common Stock (4,700) $35.64 · 4,700 Acquired
Feb. 11, 2008 AOS Employee Stock Options (Right to Buy) Common Stock (11,200) $35.64 Feb. 11, 2018 11,200 Acquired
Feb. 9, 2007 AOS Employee Stock Options (Right to Buy) Common Stock (11,200) $38.76 Feb. 9, 2017 11,200 Acquired
Feb. 9, 2007 AOS Phantom Stock Common Stock (4,700) $38.76 · 4,700 Acquired
Oct. 11, 2005 AOS Phantom Stock Common Stock (8,100) $29.20 · 8,100 Acquired
Oct. 11, 2005 AOS Employee Stock Options (Right to Buy) Common Stock (10,000) $29.20 Oct. 11, 2015 10,000 Acquired
Sept. 22, 2004 AOS Employee Stock Options (Right to Buy) [F2] Common Stock (30,900) $23.98 Sept. 22, 2014 30,900 Acquired
April 22, 2004 RRX Restricted Stock Restricted Stock (2,100) $20.30 April 22, 2007 2,100 Acquired
April 22, 2004 RRX non qualified stock option non qualified stock option (18,250) $20.30 April 22, 2014 18,250 Acquired
April 22, 2004 RRX Restricted Stock Restricted Stock (1,400) $20.30 April 22, 2006 1,400 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 3 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Jan. 19, 2024 NDSN NDSN 0 Direct
April 13, 2023 AOS Common Stock 10,000 Indirect
Feb. 12, 2010 LECO Common Shares 0 Direct

Compensation (DEF 14A)

08

Matched by name from proxy statements (DEF 14A) — verify against the filing.

LECO

President & CEO
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2023 $1,107,600 · $4,196,532 $2,068,853 $2,777,943 $138,395 $320,347 $10,609,670
2022 $1,065,000 · $3,672,156 $1,833,338 $3,088,500 $185,377 $252,107 $10,096,478
2018 $965,000 · · · $2,057,400 $36,779 $204,946 $7,018,906

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.