Michael Lawrence Thompson
First SEC filing: July 10, 2018 · Latest: July 10, 2018
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 10, 2023 | CTAS | A | 4,534 | $490.16 | $2,222,385 | 31,860 Direct | +16.59% | Acquired | 59.5% (price as of 2026-10-05) |
| Aug. 2, 2023 | CTAS | M | 2,330 | · | · | 4,660 Direct | -33.33% | Disposed | (price as of 2026-10-05) |
| Aug. 2, 2023 | CTAS | M | 4,887 | · | · | 4,889 Direct | -49.99% | Disposed | (price as of 2026-10-05) |
| Aug. 2, 2023 | CTAS | M | 2,137 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 2, 2023 | CTAS | M | 7,849 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 2, 2023 | CTAS | S | 5,050 | $498.35 | $2,516,668 | 27,326 Direct | -15.60% | Disposed | 56.8% (price as of 2026-10-05) |
| Aug. 2, 2023 | CTAS | F | 12,153 | $498.56 | $6,059,000 | 32,376 Direct | -27.29% | Disposed | 56.8% (price as of 2026-10-05) |
| Aug. 2, 2023 | CTAS | M | 2,330 | $293.56 | $683,995 | 44,529 Direct | +5.52% | Acquired | 166.2% (price as of 2026-10-05) |
| Aug. 2, 2023 | CTAS | M | 4,887 | $260.79 | $1,274,481 | 42,199 Direct | +13.10% | Acquired | 199.7% (price as of 2026-10-05) |
| Aug. 2, 2023 | CTAS | M | 2,137 | $204.48 | $436,974 | 37,312 Direct | +6.08% | Acquired | 282.2% (price as of 2026-10-05) |
| Aug. 2, 2023 | CTAS | M | 7,849 | $206.99 | $1,624,665 | 35,175 Direct | +28.72% | Acquired | 277.6% (price as of 2026-10-05) |
| July 28, 2023 | CTAS | F | 1,042 | $502.64 | $523,751 | 27,326 Direct | -3.67% | Disposed | 55.5% (price as of 2026-10-05) |
| April 17, 2023 | CTAS | J | 1,735 | · | · | 27,069 Direct | +6.85% | Acquired | (price as of 2026-10-05) |
| April 17, 2023 | CTAS | G | 1,735 | · | · | 27,069 Direct | +6.85% | Acquired | (price as of 2026-10-05) |
| April 14, 2023 | CTAS | J | 850 | · | · | 25,334 Direct | +3.47% | Acquired | (price as of 2026-10-05) |
| April 14, 2023 | CTAS | G | 850 | · | · | 25,334 Direct | +3.47% | Acquired | (price as of 2026-10-05) |
| Jan. 17, 2023 | CTAS | J | 1,166 | · | · | 24,484 Direct | +5.00% | Acquired | (price as of 2026-10-05) |
| Jan. 17, 2023 | CTAS | G | 1,166 | · | · | 24,484 Direct | +5.00% | Acquired | (price as of 2026-10-05) |
| Jan. 12, 2023 | CTAS | S | 14,795 | $444.98 | $6,583,479 | 23,318 Direct | -38.82% | Disposed | 75.6% (price as of 2026-10-05) |
| Oct. 31, 2022 | CTAS | M | 7,302 | $137.30 | $1,002,565 | 38,765 Direct | +23.21% | Acquired | 469.3% (price as of 2026-10-05) |
| Oct. 31, 2022 | CTAS | M | 3,734 | $137.30 | $512,678 | 42,499 Direct | +9.63% | Acquired | 469.3% (price as of 2026-10-05) |
| Oct. 31, 2022 | CTAS | M | 7,848 | $206.99 | $1,624,458 | 50,347 Direct | +18.47% | Acquired | 277.6% (price as of 2026-10-05) |
| Oct. 31, 2022 | CTAS | M | 2,135 | $204.48 | $436,565 | 52,482 Direct | +4.24% | Acquired | 282.2% (price as of 2026-10-05) |
| Oct. 31, 2022 | CTAS | M | 4,887 | $260.79 | $1,274,481 | 57,369 Direct | +9.31% | Acquired | 199.7% (price as of 2026-10-05) |
| Oct. 31, 2022 | CTAS | F | 17,857 | $427.75 | $7,638,332 | 39,512 Direct | -31.13% | Disposed | 82.7% (price as of 2026-10-05) |
| Oct. 31, 2022 | CTAS | M | 7,302 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Oct. 31, 2022 | CTAS | M | 3,734 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Oct. 31, 2022 | CTAS | M | 7,848 | · | · | 7,849 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Oct. 31, 2022 | CTAS | M | 2,135 | · | · | 2,137 Direct | -49.98% | Disposed | (price as of 2026-10-05) |
| Oct. 31, 2022 | CTAS | M | 4,887 | · | · | 9,776 Direct | -33.33% | Disposed | (price as of 2026-10-05) |
| July 26, 2022 | CTAS | A | 4,716 | $397.83 | $1,876,166 | 31,463 Direct | +17.63% | Acquired | 96.5% (price as of 2026-10-05) |
| July 22, 2022 | CTAS | F | 2,186 | $396.73 | $867,252 | 26,747 Direct | -7.56% | Disposed | 97.0% (price as of 2026-10-05) |
| April 1, 2022 | CTAS | G | 1,399 | · | · | 2,821 Indirect | -33.15% | Disposed | (price as of 2026-10-05) |
| April 1, 2022 | CTAS | G | 1,399 | · | · | 28,933 Direct | +5.08% | Acquired | (price as of 2026-10-05) |
| April 1, 2022 | CTAS | S | 4,700 | $423.23 | $1,989,181 | 12,940 Indirect | -26.64% | Disposed | 84.7% (price as of 2026-10-05) |
| April 1, 2022 | CTAS | S | 7,800 | $423.25 | $3,301,350 | 21,507 Indirect | -26.61% | Disposed | 84.7% (price as of 2026-10-05) |
| Oct. 6, 2021 | CTAS | M | 9,431 | $108.39 | $1,022,226 | 26,744 Direct | +54.47% | Acquired | 621.1% (price as of 2026-10-05) |
| Oct. 6, 2021 | CTAS | M | 11,034 | $137.30 | $1,514,968 | 37,778 Direct | +41.26% | Acquired | 469.3% (price as of 2026-10-05) |
| Oct. 6, 2021 | CTAS | M | 7,848 | $206.99 | $1,624,458 | 45,626 Direct | +20.77% | Acquired | 277.6% (price as of 2026-10-05) |
| Oct. 6, 2021 | CTAS | M | 2,135 | $204.48 | $436,565 | 47,761 Direct | +4.68% | Acquired | 282.2% (price as of 2026-10-05) |
| Oct. 6, 2021 | CTAS | S | 20,227 | $389.14 | $7,871,135 | 27,534 Direct | -42.35% | Disposed | 100.9% (price as of 2026-10-05) |
| Oct. 6, 2021 | CTAS | M | 9,431 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Oct. 6, 2021 | CTAS | M | 11,034 | · | · | 11,036 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Oct. 6, 2021 | CTAS | M | 7,848 | · | · | 15,697 Direct | -33.33% | Disposed | (price as of 2026-10-05) |
| Oct. 6, 2021 | CTAS | M | 2,135 | · | · | 4,272 Direct | -33.32% | Disposed | (price as of 2026-10-05) |
| July 30, 2021 | CTAS | F | 192 | $394.18 | $75,683 | 17,313 Direct | -1.10% | Disposed | 98.3% (price as of 2026-10-05) |
| July 27, 2021 | CTAS | A | 5,521 | $388.86 | $2,146,896 | 17,505 Direct | +46.07% | Acquired | 101.0% (price as of 2026-10-05) |
| July 23, 2021 | CTAS | F | 3,511 | $395.34 | $1,388,039 | 11,984 Direct | -22.66% | Disposed | 97.7% (price as of 2026-10-05) |
| Oct. 8, 2020 | CTAS | M | 19,200 | $86.10 | $1,653,120 | 43,525 Direct | +78.93% | Acquired | 807.8% (price as of 2026-10-05) |
| Oct. 8, 2020 | CTAS | M | 18,858 | $108.39 | $2,044,019 | 62,383 Direct | +43.33% | Acquired | 621.1% (price as of 2026-10-05) |
| Oct. 8, 2020 | CTAS | M | 11,034 | $137.30 | $1,514,968 | 73,417 Direct | +17.69% | Acquired | 469.3% (price as of 2026-10-05) |
| Oct. 8, 2020 | CTAS | M | 19,200 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Oct. 8, 2020 | CTAS | M | 18,858 | · | · | 9,431 Direct | -66.66% | Disposed | (price as of 2026-10-05) |
| Oct. 8, 2020 | CTAS | M | 11,034 | · | · | 22,070 Direct | -33.33% | Disposed | (price as of 2026-10-05) |
| Oct. 6, 2020 | CTAS | S | 49,092 | $330.90 | $16,244,543 | 24,325 Direct | -66.87% | Disposed | 136.2% (price as of 2026-10-05) |
| Aug. 12, 2020 | CTAS | M | 2,500 | $43.19 | $107,975 | 45,150 Direct | +5.86% | Acquired | 1709.7% (price as of 2026-10-05) |
| Aug. 12, 2020 | CTAS | M | 11,467 | $47.22 | $541,472 | 56,617 Direct | +25.40% | Acquired | 1555.2% (price as of 2026-10-05) |
| Aug. 12, 2020 | CTAS | M | 16,800 | $63.45 | $1,065,960 | 73,417 Direct | +29.67% | Acquired | 1131.8% (price as of 2026-10-05) |
| Aug. 12, 2020 | CTAS | M | 2,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 12, 2020 | CTAS | M | 11,467 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 12, 2020 | CTAS | M | 16,800 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 11, 2020 | CTAS | S | 17,650 | $319.31 | $5,635,822 | 42,650 Direct | -29.27% | Disposed | 144.8% (price as of 2026-10-05) |
| July 28, 2020 | CTAS | A | 2,330 | $293.56 | $683,995 | 60,300 Direct | +4.02% | Acquired | 166.2% (price as of 2026-10-05) |
| July 28, 2020 | CTAS | A | 6,990 | · | · | 6,990 Direct | · | Acquired | (price as of 2026-10-05) |
| July 24, 2020 | CTAS | F | 4,936 | $302.60 | $1,493,634 | 57,970 Direct | -7.85% | Disposed | 158.3% (price as of 2026-10-05) |
| Oct. 11, 2019 | CTAS | S | 2,000 | $268.23 | $536,460 | 62,906 Direct | -3.08% | Disposed | 191.4% (price as of 2026-10-05) |
| July 26, 2019 | CTAS | F | 4,147 | $261.69 | $1,085,228 | 64,906 Direct | -6.01% | Disposed | 198.7% (price as of 2026-10-05) |
| July 23, 2019 | CTAS | A | 4,888 | $260.79 | $1,274,742 | 69,053 Direct | +7.62% | Acquired | 199.7% (price as of 2026-10-05) |
| July 23, 2019 | CTAS | S | 4,888 | $260.79 | $1,274,742 | 69,053 Direct | -6.61% | Disposed | 199.7% (price as of 2026-10-05) |
| July 23, 2019 | CTAS | A | 14,663 | · | · | 14,663 Direct | · | Acquired | (price as of 2026-10-05) |
| April 15, 2019 | CTAS | S | 2,500 | $207.98 | $519,950 | 70,917 Direct | -3.41% | Disposed | 275.8% (price as of 2026-10-05) |
| Feb. 12, 2019 | CTAS | S | 1,000 | $200.60 | $200,600 | 64,165 Direct | -1.53% | Disposed | 289.6% (price as of 2026-10-05) |
| Dec. 27, 2018 | CTAS | G | 400 | · | · | 65,165 Direct | -0.61% | Disposed | (price as of 2026-10-05) |
| July 31, 2018 | CTAS | A | 6,407 | · | · | 6,407 Direct | · | Acquired | (price as of 2026-10-05) |
| July 31, 2018 | CTAS | A | 428 | $204.48 | $87,517 | 65,565 Direct | +0.66% | Acquired | 282.2% (price as of 2026-10-05) |
| July 24, 2018 | CTAS | A | 23,545 | · | · | 23,545 Direct | · | Acquired | (price as of 2026-10-05) |
| July 24, 2018 | CTAS | A | 7,849 | $206.99 | $1,624,665 | 65,137 Direct | +13.70% | Acquired | 277.6% (price as of 2026-10-05) |
| July 20, 2018 | CTAS | F | 2,863 | $203.57 | $582,821 | 57,288 Direct | -4.76% | Disposed | 283.9% (price as of 2026-10-05) |
| July 12, 2010 | CTAS | F | 381 | $23.66 | $9,014 | 35,250 Direct | -1.07% | Disposed | 3203.5% (price as of 2026-10-05) |
| Sept. 25, 2009 | CTAS | S | 1,400 | $30.15 | $42,210 | 35,631 Direct | -3.78% | Disposed | 2492.4% (price as of 2026-10-05) |
| July 28, 2009 | CTAS | F | 330 | $22.61 | $7,461 | 37,031 Direct | -0.88% | Disposed | 3356.9% (price as of 2026-10-05) |
| July 17, 2009 | CTAS | A | 5,000 | · | · | 5,000 Direct | · | Acquired | (price as of 2026-10-05) |
| July 17, 2009 | CTAS | A | 1,200 | · | · | 37,361 Direct | +3.32% | Acquired | (price as of 2026-10-05) |
| July 21, 2008 | CTAS | A | 25,108 | · | · | 36,161 Direct | +227.16% | Acquired | (price as of 2026-10-05) |
| July 17, 2008 | CTAS | A | 6,250 | · | · | 6,250 Direct | · | Acquired | (price as of 2026-10-05) |
| July 17, 2008 | CTAS | A | 1,500 | · | · | 11,053 Direct | +15.70% | Acquired | (price as of 2026-10-05) |
| July 3, 2007 | CTAS | A | 5,000 | · | · | 5,000 Direct | · | Acquired | (price as of 2026-10-05) |
| July 3, 2007 | CTAS | A | 1,200 | · | · | 9,553 Direct | +14.37% | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 2, 2023 | CTAS | Stock Options | Common Stock | $293.56 | July 26, 2030 | 2,330 | Disposed |
| Aug. 2, 2023 | CTAS | Stock Options | Common Stock | $260.79 | July 23, 2029 | 4,887 | Disposed |
| Aug. 2, 2023 | CTAS | Stock Options | Common Stcok | $204.48 | July 31, 2028 | 2,137 | Disposed |
| Aug. 2, 2023 | CTAS | Stock Options | Common Stock | $206.99 | July 24, 2028 | 7,849 | Disposed |
| Oct. 31, 2022 | CTAS | Stock Option (Right to Buy) | Common Stock | $137.30 | July 25, 2027 | 7,302 | Disposed |
| Oct. 31, 2022 | CTAS | Stock Option (Right to Buy) | Common Stock | $137.30 | July 27, 2027 | 3,734 | Disposed |
| Oct. 31, 2022 | CTAS | Stock Option (Right to Buy) | Common Stock | $206.99 | July 24, 2028 | 7,848 | Disposed |
| Oct. 31, 2022 | CTAS | Stock Option (Right to Buy) | Common Stock | $204.48 | July 31, 2028 | 2,135 | Disposed |
| Oct. 31, 2022 | CTAS | Stock Option (Right to Buy) | Common Stock | $260.79 | July 23, 2029 | 4,887 | Disposed |
| Oct. 6, 2021 | CTAS | Stock Option (Right to Buy) | Common Stock | $108.39 | July 26, 2026 | 9,431 | Disposed |
| Oct. 6, 2021 | CTAS | Stock Option (Right to Buy) | Common Stock | $137.30 | July 25, 2027 | 11,034 | Disposed |
| Oct. 6, 2021 | CTAS | Stock Option (Right to Buy) | Common Stock | $206.99 | July 24, 2028 | 7,848 | Disposed |
| Oct. 6, 2021 | CTAS | Stock Option (Right to Buy) | Common Stock | $204.48 | July 31, 2028 | 2,135 | Disposed |
| Oct. 8, 2020 | CTAS | Stock Option (Right to Buy) | Common Stock | $86.10 | July 20, 2025 | 19,200 | Disposed |
| Oct. 8, 2020 | CTAS | Stock Option (Right to Buy) | Common Stock | $108.39 | July 26, 2026 | 18,858 | Disposed |
| Oct. 8, 2020 | CTAS | Stock Option (Right to Buy) | Common Stock | $137.30 | July 25, 2027 | 11,034 | Disposed |
| Aug. 12, 2020 | CTAS | Stock Option (Right to Buy) | Common Stock | $43.19 | March 21, 2023 | 2,500 | Disposed |
| Aug. 12, 2020 | CTAS | Stock Option (Right to Buy) | Common Stock | $47.22 | July 17, 2023 | 11,467 | Disposed |
| Aug. 12, 2020 | CTAS | Stock Option (Right to Buy) | Common Stock | $63.45 | July 17, 2024 | 16,800 | Disposed |
| July 28, 2020 | CTAS | Stock Option (Right to Buy) | Common Stock | $293.56 | July 28, 2030 | 6,990 | Acquired |
| July 23, 2019 | CTAS | Stock Option (Right to Buy) | Common Stock | $260.79 | July 23, 2029 | 14,663 | Acquired |
| July 31, 2018 | CTAS | Stock Option (Right to Buy) | Common Stock | $204.48 | July 31, 2028 | 6,407 | Acquired |
| July 24, 2018 | CTAS | Stock Option (Right to Buy) | Common Stock | $206.99 | July 24, 2028 | 23,545 | Acquired |
| July 17, 2009 | CTAS | Stock Option | Common Stock | $22.61 | July 17, 2019 | 5,000 | Acquired |
| July 17, 2008 | CTAS | Stock Option (Right to Buy) | Common Stock | $27.30 | July 17, 2018 | 6,250 | Acquired |
| July 3, 2007 | CTAS | Stock Option (right to buy) | Common Stock | $39.84 | July 3, 2017 | 5,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 20 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 10, 2018 | CTAS | Common Stock | · | Direct |
| July 10, 2018 | CTAS | Common Stock | 396 | Indirect |
| July 10, 2018 | CTAS | Stock Option (Right to Buy) | 7,500 | Direct |
| July 10, 2018 | CTAS | Stock Option (Right to Buy) | 11,467 | Direct |
| July 10, 2018 | CTAS | Stock Option (Right to Buy) | 16,800 | Direct |
| July 10, 2018 | CTAS | Stock Option (Right to Buy) | 19,200 | Direct |
| July 10, 2018 | CTAS | Stock Option (Right to Buy) | 28,289 | Direct |
| July 10, 2018 | CTAS | Stock Option (Right to Buy) | 33,104 | Direct |
| Oct. 16, 2006 | CTAS | Common Stock | 8,353 | Direct |
| Oct. 16, 2006 | CTAS | Common Stock | 261 | Indirect |
| Oct. 16, 2006 | CTAS | Stock Option (right to buy) | 1,500 | Direct |
| Oct. 16, 2006 | CTAS | Stock Option (right to buy) | 2,250 | Direct |
| Oct. 16, 2006 | CTAS | Stock Option (right to buy) | 1,000 | Direct |
| Oct. 16, 2006 | CTAS | Stock Option (right to buy) | 5,000 | Direct |
| Oct. 16, 2006 | CTAS | Stock Option (right to buy) | 3,000 | Direct |
| Oct. 16, 2006 | CTAS | Stock Option (right to buy) | 3,000 | Direct |
| Oct. 16, 2006 | CTAS | Stock Option (right to buy) | 5,000 | Direct |
| Oct. 16, 2006 | CTAS | Stock Option (right to buy) | 5,000 | Direct |
| Oct. 16, 2006 | CTAS | Stock Option (right to buy) | 15,000 | Direct |
| Oct. 16, 2006 | CTAS | Stock Option (right to buy) | 4,400 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2010 | $310,000 | · | $19,928 | $25,921 | $81,620 | · | $34,958 | $472,427 |
| 2009 | $310,000 | · | $217,205 | $85,419 | $63,600 | · | $35,750 | $711,974 |
| 2008 | $286,000 | · | $35,419 | $80,719 | $75,790 | · | $25,271 | $503,199 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.