Mitchell Jacobson

CIK 1008015 · View on SEC EDGAR ↗

Insider

First SEC filing: Oct. 14, 2004 · Latest: Oct. 14, 2004

On this page

Insider at

Insider transactions

5 buys (P) 0 sells (S) Net: $17,350,914 + 48 non-open-market transactions below Avg return of open purchases vs now: 45.1% 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

48 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Nov. 18, 2025 MSM P 22,870 $84.96 $1,943,035 2,328,192 Direct +0.99% Acquired 44.6% (price as of 2026-08-18)
Nov. 3, 2025 MSM P 30,000 $84.79 $2,543,700 2,305,322 Direct +1.32% Acquired 44.9% (price as of 2026-08-18)
Nov. 3, 2025 MSM P 21,954 $83.93 $1,842,599 2,275,322 Direct +0.97% Acquired 46.4% (price as of 2026-08-18)
Oct. 31, 2025 MSM P 34,073 $84.76 $2,888,027 2,253,368 Direct +1.54% Acquired 45.0% (price as of 2026-08-18)
Oct. 30, 2025 MSM P 95,779 $84.92 $8,133,553 2,219,295 Direct +4.51% Acquired 44.7% (price as of 2026-08-18)
April 8, 2025 MSM P 27,642 $69.77 $1,928,582 1,951,725 Direct +1.44% Acquired 76.1% (price as of 2026-08-18)
April 7, 2025 MSM P 67,416 $70.12 $4,727,210 1,924,083 Direct +3.63% Acquired 75.2% (price as of 2026-08-18)
April 7, 2025 MSM P 41,595 $69.57 $2,893,764 1,856,667 Direct +2.29% Acquired 76.6% (price as of 2026-08-18)
April 7, 2025 MSM P 22,540 $68.85 $1,551,879 1,815,072 Direct +1.26% Acquired 78.5% (price as of 2026-08-18)
Jan. 31, 2024 MSM S 86 $100.06 $8,605 1,683,810 Direct -0.01% Disposed 22.8% (price as of 2026-08-18)
Jan. 31, 2024 MSM S 24,415 $99.31 $2,424,654 1,683,896 Direct -1.43% Disposed 23.7% (price as of 2026-08-18)
Jan. 29, 2024 MSM S 137,716 $97.66 $13,449,345 1,708,311 Direct -7.46% Disposed 25.8% (price as of 2026-08-18)
Jan. 26, 2024 MSM S 18,746 $97.63 $1,830,172 1,846,027 Direct -1.01% Disposed 25.8% (price as of 2026-08-18)
Jan. 23, 2024 MSM S 42,498 $97.82 $4,157,154 1,864,773 Direct -2.23% Disposed 25.6% (price as of 2026-08-18)
Jan. 22, 2024 MSM S 51,040 $97.31 $4,966,702 1,907,271 Direct -2.61% Disposed 26.3% (price as of 2026-08-18)
July 13, 2022 MSM P 200,000 $72.25 $14,450,000 272,450 Direct +276.05% Acquired 70.1% (price as of 2026-08-18)
May 12, 2022 MSM P 4,654 $79.19 $368,550 72,450 Direct +6.86% Acquired 55.2% (price as of 2026-08-18)
Jan. 29, 2021 MSM P 67,796 $78.04 $5,290,800 67,796 Direct — Acquired 57.4% (price as of 2026-08-18)
May 22, 2018 MSM S 50,000 $95.00 $4,750,000 0 Indirect -100.00% Disposed 29.3% (price as of 2026-08-18)
May 22, 2018 MSM S 50,000 $95.00 $4,750,000 0 Direct -100.00% Disposed 29.3% (price as of 2026-08-18)
May 17, 2018 MSM S 4,398 $94.91 $417,414 0 Indirect -100.00% Disposed 29.5% (price as of 2026-08-18)
May 17, 2018 MSM S 4,398 $94.91 $417,414 0 Direct -100.00% Disposed 29.5% (price as of 2026-08-18)
Jan. 24, 2018 MSM S 17,400 $99.28 $1,727,472 0 Direct -100.00% Disposed 23.8% (price as of 2026-08-18)
Jan. 24, 2018 MSM S 25,000 $98.66 $2,466,500 17,400 Direct -58.96% Disposed 24.5% (price as of 2026-08-18)
Jan. 24, 2018 MSM S 20,471 $99.00 $2,026,629 42,400 Direct -32.56% Disposed 24.1% (price as of 2026-08-18)
Jan. 24, 2018 MSM S 29,529 $98.00 $2,893,842 62,871 Direct -31.96% Disposed 25.4% (price as of 2026-08-18)
Jan. 24, 2018 MSM S 15,804 $98.95 $1,563,806 92,400 Direct -14.61% Disposed 24.2% (price as of 2026-08-18)
Jan. 24, 2018 MSM S 34,196 $98.49 $3,367,964 108,200 Direct -24.01% Disposed 24.7% (price as of 2026-08-18)
Jan. 24, 2018 MSM S 50,000 $98.29 $4,914,500 142,400 Direct -25.99% Disposed 25.0% (price as of 2026-08-18)
Jan. 23, 2018 MSM S 23,324 $94.84 $2,212,048 0 Direct -100.00% Disposed 29.5% (price as of 2026-08-18)
Jan. 23, 2018 MSM S 26,676 $94.91 $2,531,819 23,324 Direct -53.35% Disposed 29.5% (price as of 2026-08-18)
Jan. 20, 2018 MSM S 150,000 $93.80 $14,070,000 0 Direct -100.00% Disposed 31.0% (price as of 2026-08-18)
Jan. 20, 2018 MSM S 37,500 $94.00 $3,525,000 150,000 Direct -20.00% Disposed 30.7% (price as of 2026-08-18)
Jan. 20, 2018 MSM S 6,972 $93.91 $654,741 187,500 Direct -3.59% Disposed 30.8% (price as of 2026-08-18)
Jan. 20, 2018 MSM S 5,175 $94.00 $486,450 194,472 Direct -2.59% Disposed 30.7% (price as of 2026-08-18)
Jan. 19, 2018 MSM S 37,500 $94.46 $3,542,250 2,197 Direct -94.47% Disposed 30.1% (price as of 2026-08-18)
Jan. 19, 2018 MSM S 18,450 $94.49 $1,743,340 39,697 Direct -31.73% Disposed 30.0% (price as of 2026-08-18)
Jan. 19, 2018 MSM S 300 $94.50 $28,350 58,147 Direct -0.51% Disposed 30.0% (price as of 2026-08-18)
Jan. 19, 2018 MSM S 30,680 $94.03 $2,884,840 58,447 Direct -34.42% Disposed 30.7% (price as of 2026-08-18)
Jan. 19, 2018 MSM S 873 $93.99 $82,053 89,127 Direct -0.97% Disposed 30.7% (price as of 2026-08-18)
Jan. 19, 2018 MSM S 1,227 $93.99 $115,326 0 Indirect -100.00% Disposed 30.7% (price as of 2026-08-18)
Jan. 19, 2018 MSM S 5,326 $94.14 $501,390 1,227 Indirect -81.28% Disposed 30.5% (price as of 2026-08-18)
Jan. 19, 2018 MSM S 18,750 $93.46 $1,752,375 6,553 Indirect -74.10% Disposed 31.5% (price as of 2026-08-18)
Jan. 12, 2018 MSM S 24,288 $96.02 $2,332,134 712 Indirect -97.15% Disposed 28.0% (price as of 2026-08-18)
Jan. 11, 2018 MSM S 6,164 $96.53 $595,011 0 Indirect -100.00% Disposed 27.3% (price as of 2026-08-18)
Jan. 11, 2018 MSM S 33,588 $95.53 $3,208,662 6,164 Indirect -84.49% Disposed 28.6% (price as of 2026-08-18)
Nov. 21, 2017 MSM S 55,899 $82.03 $4,585,395 0 Indirect -100.00% Disposed 49.8% (price as of 2026-08-18)
Nov. 20, 2017 MSM S 40,000 $81.14 $3,245,600 30,899 Indirect -56.42% Disposed 51.4% (price as of 2026-08-18)
Nov. 17, 2017 MSM S 33,298 $80.89 $2,693,475 70,899 Indirect -31.96% Disposed 51.9% (price as of 2026-08-18)
Nov. 16, 2017 MSM S 30,803 $80.64 $2,483,954 104,197 Indirect -22.82% Disposed 52.4% (price as of 2026-08-18)
Nov. 15, 2017 MSM S 4,856 $80.10 $388,966 0 Indirect -100.00% Disposed 53.4% (price as of 2026-08-18)
Nov. 14, 2017 MSM S 20,141 $79.46 $1,600,404 4,856 Indirect -80.57% Disposed 54.6% (price as of 2026-08-18)

Showing latest 100 of 984 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.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
Jan. 23, 2026 MSM Restricted Stock Units (RSU) Class A Common Stock, $0.001 par value (1,603) — — 1,603 Acquired
Oct. 4, 2023 MSM Class B Common Stock Class A Common Stock (2,907,454) — — 2,373,433 Disposed
Oct. 4, 2023 MSM Class B Common Stock Class A Common Stock (3,182,213) — — 2,597,727 Disposed
Oct. 4, 2023 MSM Class B Common Stock Class A Common Stock (1,739,007) — — 1,419,598 Disposed
Dec. 23, 2019 MSM Class B Common Stock Class A Common Stock — — 63,492 Disposed
Nov. 8, 2018 MSM Class B Common Stock Class A Common Stock — — 100,000 Disposed
May 22, 2018 MSM Class B Common Stock Class A Common Stock — — 50,000 Disposed
May 22, 2018 MSM Class B Common Stock Class A Common Stock — — 50,000 Disposed
May 17, 2018 MSM Class B Common Stock Class A Common Stock — — 4,398 Disposed
May 17, 2018 MSM Class B Common Stock Class A Common Stock — — 4,398 Disposed
Jan. 24, 2018 MSM Class B Common Stock Class A Common Stock — — 192,400 Disposed
Jan. 23, 2018 MSM Class B Common Stock Class A Common Stock — — 50,000 Disposed
Jan. 20, 2018 MSM Class B Common Stock Class A Common Stock — — 197,450 Disposed
Jan. 19, 2018 MSM Class B Common Stock Class A Common Stock — — 90,000 Disposed
Jan. 19, 2018 MSM Class B Common Stock Class A Common Stock — — 24,591 Disposed
Jan. 12, 2018 MSM Class B Common Stock Class A Common Stock — — 25,000 Disposed
Jan. 11, 2018 MSM Class B Common Stock Class A Common Stock — — 39,752 Disposed
Nov. 21, 2017 MSM Class B Common Stock Class A Common Stock — — 25,000 Disposed
Nov. 16, 2017 MSM Class B Common Stock Class A Common Stock — — 135,000 Disposed
Dec. 20, 2016 MSM Class B Common Stock Class A Common Stock (17,539) — — 17,539 Disposed
Aug. 10, 2016 MSM Class B Common Stock Class A Common Stock (711,966) — — 711,966 Disposed
Sept. 4, 2014 MSM Class B Common Stock Class A Common Stock (251,753) — — 251,753 Disposed
Sept. 4, 2014 MSM Class B Common Stock Class A Common Stock (251,753) — — 251,753 Acquired
Aug. 15, 2014 MSM Class B Common Stock Class A Common Stock (50,000) — — 50,000 Disposed
July 15, 2014 MSM Class B Common Stock Class A Common Stock (50,000) — — 50,000 Disposed
May 12, 2014 MSM Class B Common Stock Class A Common Stock (100,000) — — 100,000 Disposed
May 8, 2014 MSM Class B Common Stock Class A Common Stock (50,000) — — 50,000 Disposed
Jan. 14, 2014 MSM Class B Common Stock Class A Common Stock (100,000) — — 100,000 Disposed
Jan. 9, 2014 MSM Class B Common Stock Class A Common Stock (100,000) — — 100,000 Disposed
May 13, 2013 MSM Class B Common Stock Class A Common Stock (100,000) — — 100,000 Disposed
April 11, 2013 MSM Class B Common Stock Class A Common Stock (184,547) — — 184,547 Disposed
Nov. 30, 2012 MSM Class B Common Stock Class A Common Stock (25,000) — — 25,000 Disposed
Nov. 28, 2012 MSM Class B Common Stock Class A Common Stock (50,000) — — 50,000 Disposed
Nov. 20, 2012 MSM Class B Common Stock Class A Common Stock (10,000) — — 10,000 Disposed
Nov. 1, 2012 MSM Class B Common Stock Class A Common Stock (75,000) — — 75,000 Disposed
Nov. 1, 2012 MSM Class B Common Stock Class A Common Stock (100,000) — — 100,000 Disposed
Oct. 12, 2012 MSM Class B Common Stock Class A Common Stock (50,000) — — 50,000 Disposed
July 30, 2012 MSM Class B Common Stock Class A Common Stock (50,000) — — 50,000 Disposed
July 19, 2012 MSM Class B Common Stock Class A Common Stock (50,000) — — 50,000 Disposed
June 29, 2012 MSM Class B Common Stock Class A Common Stock (180,180) — — 180,180 Disposed
Feb. 28, 2012 MSM Class B Common Stock Class A Common Stock (25,000) — — 25,000 Disposed
Jan. 12, 2012 MSM Class B Common Stock Class A Common Stock (100,000) — — 100,000 Disposed
Jan. 6, 2012 MSM Class B Common Stock Class A Common Stock (100,000) — — 100,000 Disposed
April 27, 2011 MSM Class B Common Stock Class A Common Stock (200,000) — — 200,000 Disposed
April 18, 2011 MSM Class B Common Stock Class A Common Stock (150,000) — — 150,000 Disposed
Feb. 1, 2011 MSM Class B Common Stock Class A Common Stock (250,000) — — 250,000 Disposed
Nov. 18, 2010 MSM Class B Common Stock Class A Common Stock (200,000) — — 200,000 Disposed
Nov. 10, 2010 MSM Class B Common Stock Class A Common Stock (100,000) — — 100,000 Disposed
Nov. 3, 2010 MSM Class B Common Stock Class A Common Stock (200,000) — — 200,000 Disposed
Oct. 26, 2010 MSM Option to purchase Common Stock (right to buy) Class A Common Stock (40,295) $14.50 Sept. 21, 2011 40,295 Disposed
Aug. 2, 2010 MSM Class B Common Stock Class A Common Stock (200,000) — — 200,000 Disposed
May 4, 2010 MSM Class B Common Stock Class A Common Stock (100,000) — — 100,000 Disposed
May 3, 2010 MSM Option to purchase Common Stock (right to buy) Class A Common Stock (600) $14.50 Sept. 21, 2011 600 Disposed
April 30, 2010 MSM Option to purchase Common Stock (right to buy) Class A Common Stock (8,200) $14.50 Sept. 21, 2011 8,200 Disposed
April 29, 2010 MSM Option to purchase Common Stock (right to buy) Class A Common Stock (10,700) $14.50 Sept. 21, 2011 10,700 Disposed
April 27, 2010 MSM Class B Common Stock Class A Common Stock (50,000) — — 50,000 Disposed
April 27, 2010 MSM Option to purchase Common Stock (right to buy) Class A Common Stock (14,700) $14.50 Sept. 21, 2011 14,700 Disposed
April 26, 2010 MSM Class B Common Stock Class A Common Stock (50,000) — — 50,000 Disposed
Nov. 19, 2009 MSM Class B Common Stock Class A Common Stock (64,400) — — 64,400 Disposed
Oct. 26, 2009 MSM Options (right to buy) [F4] Class A Common Stock, $.001 par value (17,200) $14.50 Sept. 20, 2011 17,200 Disposed
Oct. 23, 2009 MSM Options (right to buy) [F4] Class A Common Stock, $.001 par value (33,305) $14.50 Sept. 20, 2011 33,305 Disposed
April 30, 2009 MSM Options (Right to Buy) [F5] Class A Common Stock, $0.001 par value (75,000) $14.50 Sept. 20, 2011 75,000 Disposed
April 29, 2009 MSM Options (Right to Buy) [F5] Class A Common Stock, $0.001 par value (50,000) $14.50 Sept. 20, 2011 50,000 Disposed
Aug. 15, 2007 MSM Class B Common Stock Class A Common Stock (496,246) — — 496,246 Disposed
July 16, 2007 MSM Class B Common Stock Class A Common Stock (200,000) — — 200,000 Disposed
July 11, 2007 MSM Class B Common Stock Class A Common Stock (250,000) — — 250,000 Disposed
April 17, 2007 MSM Class B Common Stock Class A Common Stock (23,460) — — 23,460 Acquired
April 17, 2007 MSM Class B Common Stock Class A Common Stock (23,460) — — 23,460 Disposed
April 9, 2007 MSM Class B Common Stock Class A Common Stock (5,454,279) — — 1,116,779 Disposed
April 6, 2006 MSM Class B Common Stock Class A Common Stock (500,000) — — 500,000 Acquired
Nov. 2, 2005 MSM Class B Common Stock Class A Common Stock (400,000) — — 400,000 Disposed
Aug. 17, 2005 MSM Class B Common Stock Class A Common Stock (946,246) — — 946,246 Acquired
Nov. 17, 2004 MSM Class B Common Stock Class A Common Stock (100,000) — — 100,000 Disposed
Aug. 2, 2004 MSM Class B Common Stock Class A Common Stock (1,949,316) — — 1,949,316 Disposed
Jan. 28, 2004 MSM Class B Common Stock Class A Common Stock (716,134) — — 716,134 Disposed

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

Compensation (DEF 14A)

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

MSM

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2011 $975,000 — — — — — $253,660 $1,228,660
2010 $975,000 — — — — — $235,001 $1,210,001
2009 $975,000 — — — — — $213,346 $1,188,346

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