Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 96 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

96 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 16, 2021 MSM S 9,318 $84.05 $783,178 8,983 Direct -50.92% Disposed 54.8% (price as of 2026-10-02)
Feb. 16, 2021 MSM S 6,252 $84.82 $530,295 18,301 Direct -25.46% Disposed 53.4% (price as of 2026-10-02)
Feb. 12, 2021 MSM S 7,803 $84.18 $656,857 8,983 Direct -46.49% Disposed 54.6% (price as of 2026-10-02)
Feb. 12, 2021 MSM S 7,766 $84.69 $657,703 16,786 Direct -31.63% Disposed 53.6% (price as of 2026-10-02)

Showing latest 100 of 170 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
Nov. 30, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (63) · · 63 Acquired
Nov. 6, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (52) · · 52 Disposed
Nov. 6, 2021 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (664) · · 664 Disposed
Nov. 6, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (132) · · 132 Disposed
Nov. 6, 2021 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (651) · · 651 Disposed
Nov. 5, 2021 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (1,559) · · 1,559 Acquired
Oct. 26, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (137) · · 137 Disposed
Oct. 26, 2021 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (452) · · 452 Disposed
Oct. 20, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (101) · · 101 Disposed
Oct. 20, 2021 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (366) · · 366 Disposed
Oct. 17, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (86) · · 86 Disposed
Oct. 17, 2021 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (350) · · 350 Disposed
July 27, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (69) · · 69 Acquired
April 27, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (65) · · 65 Acquired
Feb. 16, 2021 MSM Options (right to buy) Class A Common Stock, $0.001 par value (10,500) · Oct. 18, 2022 10,500 Disposed
Feb. 16, 2021 MSM Options (right to buy) Class A Common Stock, $0.001 par value (5,070) · Oct. 22, 2022 5,070 Disposed
Feb. 12, 2021 MSM Options (right to buy) Class A Common Stock, $0.001 par value (5,187) · Oct. 22, 2022 5,187 Disposed
Feb. 12, 2021 MSM Options (right to buy) Class A Common Stock, $0.001 par value (10,382) · Oct. 21, 2022 10,382 Disposed
Jan. 26, 2021 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (73) · · 73 Acquired
Dec. 15, 2020 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (311) · · 311 Acquired
Nov. 24, 2020 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (64) · · 64 Acquired
Nov. 6, 2020 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (2,657) · · 2,657 Acquired
Nov. 6, 2020 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (651) · · 651 Disposed
Nov. 6, 2020 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (76) · · 76 Disposed
Oct. 26, 2020 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (94) · · 94 Disposed
Oct. 26, 2020 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (452) · · 452 Disposed
Oct. 20, 2020 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (67) · · 67 Disposed
Oct. 20, 2020 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (366) · · 366 Disposed
Oct. 19, 2020 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (119) · · 119 Disposed
Oct. 19, 2020 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (495) · · 495 Disposed
Oct. 17, 2020 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (54) · · 54 Disposed
Oct. 17, 2020 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (350) · · 350 Disposed
July 28, 2020 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (83) · · 83 Acquired
May 22, 2020 MSM Options (right to buy) Class A Common Stock, $0.001 par value (10,382) $83.03 Oct. 21, 2022 10,382 Acquired
May 22, 2020 MSM Options (right to buy) Class A Common Stock, $0.001 par value (10,382) $83.03 Oct. 21, 2021 10,382 Disposed
May 22, 2020 MSM Options (right to buy) Class A Common Stock, $0.001 par value (10,257) $81.76 Oct. 22, 2022 10,257 Acquired
May 22, 2020 MSM Options (right to buy) Class A Common Stock, $0.001 par value (10,257) $81.76 Oct. 22, 2020 10,257 Disposed
April 28, 2020 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (90) · · 90 Acquired
Feb. 5, 2020 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (544) · · 544 Acquired
Nov. 26, 2019 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (68) · · 68 Acquired
Nov. 6, 2019 MSM Restricted Stock Unit Class A Common Stock, $0.001 par value (2,604) · · 2,604 Acquired
Oct. 26, 2019 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (37) · · 37 Disposed
Oct. 26, 2019 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (452) · · 452 Disposed
Oct. 20, 2019 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (22) · · 22 Disposed
Oct. 20, 2019 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (366) · · 366 Disposed
Oct. 19, 2019 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (55) · · 55 Disposed
Oct. 19, 2019 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (495) · · 495 Disposed
Oct. 17, 2019 MSM Dividend Equivalent Units Class A Common Stock, $0.001 par value (12) · · 12 Disposed
Oct. 17, 2019 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (350) · · 350 Disposed
Aug. 6, 2019 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (65) · · 65 Acquired
April 23, 2019 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (44) · · 44 Acquired
Feb. 7, 2019 MSM Options (right to buy) [F3] Class A Common Stock, $0.001 par value (10,036) $69.46 Oct. 23, 2019 10,036 Disposed
Jan. 22, 2019 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (44) · · 44 Acquired
Nov. 27, 2018 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (42) · · 42 Acquired
Oct. 26, 2018 MSM Dividend Equivalent Units (DEU) Class A Common Stock, $0.001 par value (21) · · 21 Disposed
Oct. 26, 2018 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (452) · · 452 Disposed
Oct. 20, 2018 MSM Dividend Equivalent Units (DEU) Class A Common Stock, $0.001 par value (9) · · 9 Disposed
Oct. 20, 2018 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (366) · · 366 Disposed
Oct. 19, 2018 MSM Dividend Equivalent Units (DEU) Class A Common Stock, $0.001 par value (37) · · 37 Disposed
Oct. 19, 2018 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (495) · · 495 Disposed
Oct. 17, 2018 MSM Restricted Stock Unit Class A Common Stock, $0.001 par value (1,751) · · 1,751 Acquired
Oct. 17, 2018 MSM Options (right to buy) [F1] Class A Common Stock, $0.001 par value (8,487) $83.21 Oct. 16, 2025 8,487 Acquired
July 26, 2018 MSM Options (right to buy) [F3] Class A Common Stock, $0.001 par value (8,696) $66.69 · 8,696 Disposed
July 24, 2018 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (38) · · 38 Acquired
May 1, 2018 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (35) · · 35 Acquired
Jan. 30, 2018 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (32) · · 32 Acquired
Nov. 28, 2017 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 Par Value (30) · · 30 Acquired
Oct. 26, 2017 MSM Dividend Equivalent units (DEU) Class A Common Stock, $0.001 Par Value (9) · · 9 Acquired
Oct. 26, 2017 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 Par Value (451) · · 451 Acquired
Oct. 20, 2017 MSM Options (right to buy) [F5] Class A Common Stock, $0.001 par value (9,734) $79.60 Oct. 19, 2024 9,734 Acquired
Oct. 20, 2017 MSM Restricted Stock Unit Class A Common Stock, $0.001 par value (1,831) · · 1,831 Acquired
Oct. 19, 2017 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (495) · · 495 Acquired
Oct. 19, 2017 MSM Dividend Equivalent Units (DEU) Class A Common Stock, $0.001 par value (23) · · 23 Acquired
Aug. 1, 2017 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (28) · · 28 Acquired
May 2, 2017 MSM Dividend Equivalent Unit Class A Common Stock, $0.001 par value (22) · · 22 Acquired
Jan. 26, 2017 MSM Options (right to buy) [F3] Class A Common Stock, $0.001 par value (10,641) $54.52 Oct. 18, 2017 10,641 Disposed
Jan. 24, 2017 MSM Dividend Equivalent Unit Class A Comon Stock, $0.001 par value (19) · · 19 Acquired
Nov. 29, 2016 MSM Dividend Equivalent Unit Class A Comon Stock, $0.001 par value (22) · · 22 Acquired
Oct. 26, 2016 MSM Restricted Stock Unit Class A Common Stock, $0.001 par value (2,259) · · 2,259 Acquired
Oct. 26, 2016 MSM Options (right to buy) [F1] Class A Common Stock, $0.001 par value (14,193) $71.33 Oct. 25, 2023 14,193 Acquired
Oct. 19, 2016 MSM Dividend Equivalent Units (DEU) Class A Common Stock, $0.001 par value (13) · · 13 Disposed
Oct. 19, 2016 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (494) · · 494 Disposed
July 26, 2016 MSM Dividend Equivalent Unit Class A Comon Stock, $0.001 par value (15) · · 15 Acquired
April 26, 2016 MSM Dividend Equivalent Unit Class A Comon Stock, $0.001 par value (14) · · 14 Acquired
April 15, 2016 MSM Options (right to buy) [F2] Class A Common Stock, $0.001 par value (12,303) $44.17 Oct. 12, 2016 12,303 Acquired

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

Initial ownership (Form 3) 10 holdings

07

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

DateTickerSecuritySharesOwnership
April 11, 2016 MSM Class A Common Stock, $0.001 par value 7,057 Direct
April 11, 2016 MSM Restricted Stock Units [F1]→ Class A Common Stock, $0.001 par value (2,474) 2,474 Direct
April 11, 2016 MSM Options (right to buy) [F3]→ Class A Common Stock, $.001 par value (10,036) 10,036 Direct
April 11, 2016 MSM Options (right to buy) [F3]→ Class A Common Stock, $0.001 par value (10,257) 10,257 Direct
April 11, 2016 MSM Options (right to buy) [F3]→ Class A Common Stock, $0.001 par value (10,382) 10,382 Direct
April 11, 2016 MSM Dividend Equivalent Unit→ Class A Comon Stock, $0.001 par value (35) 35 Direct
April 11, 2016 MSM Options (right to buy) [F3]→ Class A Common Stock, $0.001 par value (14,850) 14,850 Direct
April 11, 2016 MSM Options (right to buy) [F3]→ Class A Common Stock, $.001 par value (12,303) 12,303 Direct
April 11, 2016 MSM Options (right to buy) [F3]→ Class A Common Stock, $0.001 par value (10,641) 10,641 Direct
April 11, 2016 MSM Options (right to buy) [F3]→ Class A Common Stock, $0.001 par value (8,696) 8,696 Direct