Insider at

04

Insider transactions

05
1 buys (P) 0 sells (S) Net: $600,873 + 93 non-open-market transactions below Avg return of open purchases vs now: 44.4% 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

93 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Nov. 13, 2025 MSM P 6,666 $90.14 $600,873 9,537 Direct +232.18% Acquired 44.4% (price as of 2026-10-02)
July 3, 2025 MSM S 2,000 $90.00 $180,000 2,871 Direct -41.06% Disposed 44.6% (price as of 2026-10-02)
Nov. 13, 2024 MSM S 900 $89.07 $80,163 4,044 Direct -18.20% Disposed 46.1% (price as of 2026-10-02)
Feb. 8, 2021 MSM S 1,789 $86.82 $155,321 0 Direct -100.00% Disposed 49.9% (price as of 2026-10-02)
Jan. 24, 2018 MSM S 1,000 $98.25 $98,250 2,442 Direct -29.05% Disposed 32.4% (price as of 2026-10-02)
July 19, 2017 MSM P 1,000 $72.00 $72,000 2,422 Direct +70.32% Acquired 80.7% (price as of 2026-10-02)
Jan. 24, 2017 MSM S 1,772 $101.00 $178,972 1,422 Direct -55.48% Disposed 28.8% (price as of 2026-10-02)

Showing latest 100 of 186 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
Jan. 23, 2026 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (1,603) · · 1,603 Acquired
Jan. 25, 2025 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (50) · · 50 Disposed
Jan. 25, 2025 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (777) · · 777 Disposed
Jan. 22, 2025 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (1,598) · · 1,598 Acquired
Jan. 26, 2024 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (762) · · 762 Disposed
Jan. 26, 2024 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (56) · · 56 Disposed
Jan. 25, 2024 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (776) · · 776 Disposed
Jan. 25, 2024 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (26) · · 26 Disposed
Jan. 24, 2024 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (1,390) · · 1,390 Acquired
Jan. 27, 2023 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (56) · · 56 Disposed
Jan. 27, 2023 MSM Restricted Stock Units (RSUs) Class A Common Stock, $0.001 par value (748) · · 748 Disposed
Jan. 26, 2023 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (28) · · 28 Disposed
Jan. 26, 2023 MSM Restricted Stock Units (RSUs) Class A Common Stock, $0.001 par value (761) · · 761 Disposed
Jan. 25, 2023 MSM Restricted Stock Units (RSUs) Class A Common Stock, $0.001 par value (1,553) · · 1,553 Acquired
Jan. 29, 2022 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (105) · · 105 Disposed
Jan. 29, 2022 MSM Restricted Stock Units (RSUs) Class A Common Stock, $0.001 par value (852) · · 852 Disposed
Jan. 27, 2022 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (26) · · 26 Disposed
Jan. 27, 2022 MSM Restricted Stock Units (RSUs) Class A Common Stock, $0.001 par value (748) · · 748 Disposed
Jan. 26, 2022 MSM Restricted Stock Units (RSUs) Class A Common Stock, $0.001 par value (1,523) · · 1,523 Acquired
Jan. 25, 2022 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (23) · · 23 Acquired
Nov. 30, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (23) · · 23 Acquired
July 27, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (21) · · 21 Acquired
April 27, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (20) · · 20 Acquired
Jan. 29, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (219) · · 219 Disposed
Jan. 29, 2021 MSM Restricted Stock Units (RSUs) Class A Common Stock, $0.001 par value (852) · · 852 Disposed
Jan. 29, 2021 MSM Restricted Stock Units (RSUs) Class A Common Stock, $0.001 par value (718) · · 718 Disposed
Jan. 27, 2021 MSM Restricted Stock Units (RSUs) Class A Common Stock, $0.001 par value (1,496) · · 1,496 Acquired
Jan. 26, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (25) · · 25 Acquired
Dec. 15, 2020 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (107) · · 107 Acquired
Nov. 24, 2020 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (22) · · 22 Acquired
July 28, 2020 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (28) · · 28 Acquired
April 28, 2020 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (31) · · 31 Acquired
Feb. 5, 2020 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (59) · · 59 Acquired
Jan. 29, 2020 MSM Restricted Stock Units (RSU) [F1] Class A Common Stock, $0.001 par value (1,704) · · 1,704 Acquired
Jan. 29, 2020 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (20) · · 20 Disposed
Jan. 29, 2020 MSM Restricted Stock Units (RSU) [F1] Class A Common Stock, $0.001 par value (717) · · 717 Disposed
Jan. 25, 2020 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (34) · · 34 Disposed
Jan. 25, 2020 MSM Restricted Stock Units (RSU) [F1] Class A Common Stock, $0.001 par value (581) · · 581 Disposed
Nov. 26, 2019 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (21) · · 21 Acquired
Aug. 6, 2019 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (23) · · 23 Acquired
April 23, 2019 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (15) · · 15 Acquired
Jan. 29, 2019 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (1,435) · · 1,435 Acquired
Jan. 26, 2019 MSM Dividend Equivalent Units (DEU) Class A Common Stock, $0.001 par value (29) · · 29 Disposed
Jan. 26, 2019 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (555) · · 555 Disposed
Jan. 25, 2019 MSM Dividend Equivalent Units (DEU) Class A Common Stock, $0.001 par value (16) · · 16 Disposed
Jan. 25, 2019 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (580) · · 580 Disposed
Jan. 22, 2019 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (14) · · 13 Acquired
Nov. 27, 2018 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (13) · · 13 Acquired
July 24, 2018 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (12) · · 12 Acquired
May 1, 2018 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (12) · · 12 Acquired
Jan. 30, 2018 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (3) · · 3 Acquired
Jan. 26, 2018 MSM Dividend Equivalent Units (DEU) Class A Common Stock, $0.001 par value (10) · · 10 Disposed
Jan. 26, 2018 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (555) · · 555 Disposed
Jan. 25, 2018 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (1,161) · · 1,161 Acquired
Jan. 21, 2018 MSM Dividend Equivalent Units (DEU) Class A Common Stock, $0.001 par value (38) · · 38 Disposed
Jan. 21, 2018 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (982) · · 982 Disposed
Nov. 28, 2017 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 Par Value (12) · · 12 Acquired
Aug. 1, 2017 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (13) · · 13 Acquired
May 2, 2017 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (11) · · 11 Acquired
Jan. 26, 2017 MSM Restricted Stock Unit Class A Common Stock, $0.001 par value (1,110) · · 1,110 Acquired
Jan. 24, 2017 MSM Dividend Equivalent Unit Class A Comon Stock, $0.001 par value (4) · · 4 Acquired
Jan. 21, 2017 MSM Dividend Equivalent Units (DEU) Class A Common Stock, $0.001 par value (16) · · 16 Disposed
Jan. 21, 2017 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (982) · · 982 Disposed
Nov. 29, 2016 MSM Dividend Equivalent Unit Class A Comon Stock, $0.001 par value (10) · · 10 Acquired
July 26, 2016 MSM Dividend Equivalent Unit Class A Comon Stock, $0.001 par value (12) · · 12 Acquired
April 26, 2016 MSM Dividend Equivalent Unit Class A Comon Stock, $0.001 par value (11) · · 11 Acquired
Jan. 21, 2016 MSM Restricted Stock Unit Class A Common Stock, $0.001 par value (1,964) · · 1,964 Acquired
Oct. 29, 2014 MSM Options (right to buy) [F1] Class A Common Stock, $.001 par value (5,000) $38.52 Jan. 7, 2015 5,000 Disposed
Aug. 2, 2013 MSM Options (right to buy) [F1] Class A Common Stock, $ 0.001 par value (5,000) $39.15 Jan. 1, 2014 5,000 Disposed
Aug. 2, 2013 MSM Options (right to buy) [F1] Class A Common Stock, $ 0.001 par value (526) $28.30 Jan. 5, 2014 526 Disposed
Nov. 5, 2010 MSM Options (right to buy) [F2] Class A Common Stock, $.001 par value (5,000) $40.22 Jan. 2, 2013 5,000 Disposed
Nov. 5, 2010 MSM Options (right to buy) [F2] Class A Common Stock, $.001 par value (3,700) $35.20 Jan. 3, 2015 3,700 Disposed
Nov. 4, 2010 MSM Options (right to buy) [F1] Class A Common Stock, $.001 par value (1,300) $35.20 Jan. 3, 2015 1,300 Disposed
Jan. 11, 2010 MSM Options (right to buy) [F1] Class A Common Stock, $ 0.001 par value (4,474) $28.30 Jan. 6, 2014 4,474 Disposed
Jan. 11, 2010 MSM Options (right to buy) [F1] Class A Common Stock, $ 0.001 par value (4,884) $17.99 Jan. 8, 2013 4,884 Disposed
Jan. 8, 2008 MSM Options (right to buy) [F1] Class A Common Stock, $.001 par value (5,000) $38.52 Jan. 8, 2018 5,000 Acquired
July 12, 2007 MSM Options (right to buy) [F1] See Footnote [F6] (116) $17.99 Jan. 7, 2013 116 Disposed
July 12, 2007 MSM Options (right to buy) [F1] See Footnote [F6] (5,000) $19.90 Jan. 3, 2012 5,000 Disposed
July 12, 2007 MSM Options (right to buy) [F1] See Footnote [F6] (5,000) $18.00 Jan. 5, 2011 5,000 Disposed
July 12, 2007 MSM Options (right to buy) [F1] See Footnote [F6] (1,884) $11.94 Jan. 7, 2010 1,884 Disposed
Jan. 2, 2007 MSM Options (right to buy) [F1] Class A Common Stock, $.001 par value (5,000) $39.15 Jan. 2, 2017 5,000 Acquired
Jan. 3, 2006 MSM Options (right to buy)(1) See Footnote [F1] (5,000) $40.22 Jan. 3, 2016 5,000 Acquired
Jan. 4, 2005 MSM Options (right to buy) [F1] See Footnote [F1] (5,000) $35.20 Jan. 4, 2015 5,000 Acquired
Aug. 4, 2004 MSM Options (right to buy) [F1] See Footnote [F3] (2,700) $11.94 Jan. 7, 2010 2,700 Disposed
Jan. 6, 2004 MSM Options (right to buy) [F1] See Footnote [F1] (5,000) $28.30 Jan. 6, 2014 5,000 Acquired

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