Marlene Mary Mcgrath
Insider
First SEC filing: April 11, 2012 · Latest: April 11, 2012
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 1, 2018 | MMM | M | 3,523 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| June 1, 2018 | MMM | F | 1,607 | $199.59 | $320,741 | 26,080 Direct | -5.80% | Disposed | -1.9% (price as of 2026-10-06) |
| June 1, 2018 | MMM | M | 3,523 | $199.59 | $703,156 | 27,687 Direct | +14.58% | Acquired | -1.9% (price as of 2026-10-06) |
| Feb. 6, 2018 | MMM | A | 22,200 | · | · | 22,200 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 6, 2018 | MMM | F | 2,759 | · | · | 24,164 Direct | -10.25% | Disposed | (price as of 2026-10-06) |
| Feb. 6, 2018 | MMM | A | 6,016 | · | · | 26,923 Direct | +28.78% | Acquired | (price as of 2026-10-06) |
| Feb. 6, 2018 | MMM | A | 22,200 | · | · | 22,200 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 6, 2018 | MMM | F | 2,836 | · | · | 24,087 Direct | -10.53% | Disposed | (price as of 2026-10-06) |
| Feb. 6, 2018 | MMM | A | 6,016 | · | · | 26,923 Direct | +28.78% | Acquired | (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 1,100 | $194.84 | $214,324 | 22,907 Direct | -4.58% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 600 | $194.84 | $116,904 | 22,307 Direct | -2.62% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 200 | $194.84 | $38,968 | 22,107 Direct | -0.90% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 300 | $194.84 | $58,452 | 21,807 Direct | -1.36% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 400 | $194.85 | $77,940 | 21,407 Direct | -1.83% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | M | 5,360 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| May 18, 2017 | MMM | M | 3,573 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 200 | $194.83 | $38,966 | 24,007 Direct | -0.83% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 300 | $194.82 | $58,446 | 24,207 Direct | -1.22% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 971 | $194.82 | $189,170 | 24,507 Direct | -3.81% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 200 | $194.80 | $38,960 | 25,478 Direct | -0.78% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 589 | $194.79 | $114,731 | 25,678 Direct | -2.24% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | M | 5,360 | $87.89 | $471,090 | 26,267 Direct | +25.64% | Acquired | 122.7% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 1,417 | $194.96 | $276,258 | 20,907 Direct | -6.35% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 700 | $194.94 | $136,458 | 22,324 Direct | -3.04% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 100 | $194.94 | $19,494 | 23,024 Direct | -0.43% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 1,300 | $194.93 | $253,409 | 23,124 Direct | -5.32% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 56 | $194.93 | $10,916 | 24,424 Direct | -0.23% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | M | 3,573 | $89.47 | $319,676 | 24,480 Direct | +17.09% | Acquired | 118.7% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 500 | $194.86 | $97,430 | 20,907 Direct | -2.34% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 200 | $194.83 | $38,966 | 24,007 Direct | -0.83% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 300 | $194.82 | $58,446 | 24,207 Direct | -1.22% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 971 | $194.82 | $189,170 | 24,507 Direct | -3.81% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 200 | $194.80 | $38,960 | 25,478 Direct | -0.78% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 589 | $194.79 | $114,731 | 25,678 Direct | -2.24% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | M | 5,360 | $87.89 | $471,090 | 26,267 Direct | +25.64% | Acquired | 122.7% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 1,417 | $194.96 | $276,258 | 20,907 Direct | -6.35% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 700 | $194.94 | $136,458 | 22,324 Direct | -3.04% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 100 | $194.94 | $19,494 | 23,024 Direct | -0.43% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 1,300 | $194.93 | $253,409 | 23,124 Direct | -5.32% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 56 | $194.93 | $10,916 | 24,424 Direct | -0.23% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | M | 3,573 | $89.47 | $319,676 | 24,480 Direct | +17.09% | Acquired | 118.7% (price as of 2026-10-06) |
| May 18, 2017 | MMM | M | 5,360 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| May 18, 2017 | MMM | M | 3,573 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 500 | $194.86 | $97,430 | 20,907 Direct | -2.34% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 400 | $194.85 | $77,940 | 21,407 Direct | -1.83% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 300 | $194.84 | $58,452 | 21,807 Direct | -1.36% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 200 | $194.84 | $38,968 | 22,107 Direct | -0.90% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 600 | $194.84 | $116,904 | 22,307 Direct | -2.62% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 1,100 | $194.84 | $214,324 | 22,907 Direct | -4.58% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 200 | $194.83 | $38,966 | 24,007 Direct | -0.83% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 300 | $194.82 | $58,446 | 24,207 Direct | -1.22% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 971 | $194.82 | $189,170 | 24,507 Direct | -3.81% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 200 | $194.80 | $38,960 | 25,478 Direct | -0.78% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 589 | $194.79 | $114,731 | 25,678 Direct | -2.24% | Disposed | 0.5% (price as of 2026-10-06) |
| May 18, 2017 | MMM | M | 5,360 | $87.89 | $471,090 | 26,267 Direct | +25.64% | Acquired | 122.7% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 1,417 | $194.96 | $276,258 | 20,905 Direct | -6.35% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 700 | $194.94 | $136,458 | 22,324 Direct | -3.04% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 100 | $194.94 | $19,494 | 23,024 Direct | -0.43% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 1,300 | $194.93 | $253,409 | 23,124 Direct | -5.32% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | S | 56 | $194.93 | $10,916 | 24,424 Direct | -0.23% | Disposed | 0.4% (price as of 2026-10-06) |
| May 18, 2017 | MMM | M | 3,573 | $89.47 | $319,676 | 24,480 Direct | +17.09% | Acquired | 118.7% (price as of 2026-10-06) |
| Feb. 7, 2017 | MMM | A | 30,623 | · | · | 30,623 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 7, 2017 | MMM | F | 3,281 | · | · | 20,786 Direct | -13.63% | Disposed | (price as of 2026-10-06) |
| Feb. 7, 2017 | MMM | A | 6,764 | · | · | 24,067 Direct | +39.09% | Acquired | (price as of 2026-10-06) |
| Feb. 7, 2017 | MMM | A | 30,623 | · | · | 30,623 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 7, 2017 | MMM | F | 3,295 | · | · | 17,303 Direct | -16.00% | Disposed | (price as of 2026-10-06) |
| Feb. 7, 2017 | MMM | A | 6,764 | · | · | 17,303 Direct | +64.18% | Acquired | (price as of 2026-10-06) |
| Feb. 7, 2017 | MMM | A | 30,623 | · | · | 30,623 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 7, 2017 | MMM | F | 3,295 | · | · | 20,772 Direct | -13.69% | Disposed | (price as of 2026-10-06) |
| Feb. 7, 2017 | MMM | A | 6,764 | · | · | 24,067 Direct | +39.09% | Acquired | (price as of 2026-10-06) |
| June 3, 2016 | MMM | M | 3,522 | · | · | 3,523 Direct | -49.99% | Disposed | (price as of 2026-10-06) |
| June 3, 2016 | MMM | F | 1,698 | $168.38 | $285,909 | 17,197 Direct | -8.99% | Disposed | 16.2% (price as of 2026-10-06) |
| June 3, 2016 | MMM | M | 3,522 | $168.38 | $593,034 | 18,895 Direct | +22.91% | Acquired | 16.2% (price as of 2026-10-06) |
| Feb. 2, 2016 | MMM | A | 37,755 | · | · | 37,755 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 2, 2016 | MMM | F | 2,952 | · | · | 15,373 Direct | -16.11% | Disposed | (price as of 2026-10-06) |
| Feb. 2, 2016 | MMM | A | 8,127 | · | · | 18,325 Direct | +79.69% | Acquired | (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | M | 1,131 | $77.18 | $87,291 | 11,329 Direct | +11.09% | Acquired | 153.6% (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | M | 4,100 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | M | 1,335 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | M | 1,131 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | M | 2,560 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | S | 4,100 | $159.28 | $653,048 | 10,198 Direct | -28.68% | Disposed | 22.9% (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | M | 4,100 | $78.72 | $322,752 | 14,298 Direct | +40.20% | Acquired | 148.6% (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | S | 1,335 | $159.25 | $212,599 | 10,198 Direct | -11.58% | Disposed | 22.9% (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | M | 1,335 | $54.11 | $72,237 | 11,533 Direct | +13.09% | Acquired | 261.7% (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | S | 700 | $159.23 | $111,461 | 10,198 Direct | -6.42% | Disposed | 22.9% (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | S | 100 | $159.22 | $15,922 | 10,898 Direct | -0.91% | Disposed | 22.9% (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | S | 131 | $159.21 | $20,857 | 10,998 Direct | -1.18% | Disposed | 22.9% (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | S | 100 | $159.21 | $15,921 | 11,129 Direct | -0.89% | Disposed | 22.9% (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | S | 100 | $159.21 | $15,921 | 11,229 Direct | -0.88% | Disposed | 22.9% (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | S | 2,560 | $159.23 | $407,629 | 10,198 Direct | -20.07% | Disposed | 22.9% (price as of 2026-10-06) |
| Nov. 5, 2015 | MMM | M | 2,560 | $84.78 | $217,037 | 12,758 Direct | +25.10% | Acquired | 130.8% (price as of 2026-10-06) |
| Feb. 3, 2015 | MMM | A | 40,323 | · | · | 40,323 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 3, 2015 | MMM | F | 1,738 | $165.94 | $288,404 | 10,198 Direct | -14.56% | Disposed | 17.9% (price as of 2026-10-06) |
| Feb. 3, 2015 | MMM | A | 5,109 | · | · | 11,936 Direct | +74.84% | Acquired | (price as of 2026-10-06) |
| Oct. 28, 2014 | MMM | M | 2,236 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Oct. 28, 2014 | MMM | S | 400 | $150.86 | $60,344 | 6,826 Direct | -5.54% | Disposed | 29.7% (price as of 2026-10-06) |
| Oct. 28, 2014 | MMM | S | 1,336 | $150.84 | $201,522 | 7,226 Direct | -15.60% | Disposed | 29.7% (price as of 2026-10-06) |
| Oct. 28, 2014 | MMM | S | 500 | $150.84 | $75,420 | 8,562 Direct | -5.52% | Disposed | 29.7% (price as of 2026-10-06) |
| Oct. 28, 2014 | MMM | M | 2,236 | $87.35 | $195,315 | 9,062 Direct | +32.76% | Acquired | 124.1% (price as of 2026-10-06) |
Showing latest 100 of 114 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 |
|---|---|---|---|---|---|---|---|
| June 1, 2018 | MMM | Restricted Stock Units | Common Stock | · | · | 3,523 | Disposed |
| Feb. 6, 2018 | MMM | Non-qualified Stock Option (Right to Buy) | Common Stock | $233.63 | Feb. 4, 2028 | 22,200 | Acquired |
| Feb. 6, 2018 | MMM | Non-qualified Stock Option (Right to Buy) [F3] | Common Stock | $233.63 | Feb. 4, 2028 | 22,200 | Acquired |
| May 18, 2017 | MMM | Non-qualified Stock Option (Right to Buy) [F2] | Common Stock | $87.89 | Feb. 7, 2022 | 5,360 | Disposed |
| May 18, 2017 | MMM | Non-qualified Stock Option (Right to Buy) [F1] | Common Stock | $89.47 | Feb. 8, 2021 | 3,573 | Disposed |
| May 18, 2017 | MMM | Non-qualified Stock Option (Right to Buy) [F3] | Common Stock | $87.89 | Feb. 7, 2022 | 5,360 | Disposed |
| May 18, 2017 | MMM | Non-qualified Stock Option (Right to Buy) [F2] | Common Stock | $89.47 | Feb. 8, 2021 | 3,573 | Disposed |
| Feb. 7, 2017 | MMM | Non-qualified Stock Option (Right to Buy) | Common Stock | $175.76 | Feb. 8, 2027 | 30,623 | Acquired |
| Feb. 7, 2017 | MMM | Non-qualified Stock Option (Right to Buy) [F3] | Common Stock | $175.76 | Feb. 8, 2027 | 30,623 | Acquired |
| Feb. 7, 2017 | MMM | Non-qualified Stock Option (Right to Buy) | Common Stock | $175.76 | Feb. 8, 2027 | 30,623 | Acquired |
| June 3, 2016 | MMM | Restricted Stock Units | Common Stock | · | · | 3,522 | Disposed |
| Feb. 2, 2016 | MMM | Non-qualified Stock Option (Right to Buy) [F2] | Common Stock | $147.87 | Feb. 2, 2026 | 37,755 | Acquired |
| Nov. 5, 2015 | MMM | Non-qualified Stock Option (Right to Buy) [F1] | Common Stock | $78.72 | Feb. 7, 2020 | 4,100 | Disposed |
| Nov. 5, 2015 | MMM | Non-qualified Stock Option (Right to Buy) | Common Stock | $54.11 | Feb. 8, 2019 | 1,335 | Disposed |
| Nov. 5, 2015 | MMM | Non-qualified Stock Option (Right to Buy) | Common Stock | $77.18 | May 13, 2018 | 1,131 | Disposed |
| Nov. 5, 2015 | MMM | Non-qualified Stock Option (Right to Buy) | Common Stock | $84.78 | May 8, 2017 | 2,560 | Disposed |
| Feb. 3, 2015 | MMM | Non-qualified Stock Option (Right to Buy) [F2] | Common Stock | $165.94 | Feb. 3, 2025 | 40,323 | Acquired |
| Oct. 28, 2014 | MMM | Non-qualified Stock Option (Right to Buy) | Common Stock | $87.35 | May 9, 2016 | 2,236 | Disposed |
| Feb. 4, 2014 | MMM | Non-qualified Stock Option (Right to Buy) [F2] | Common Stock | $126.72 | Feb. 2, 2024 | 33,704 | Acquired |
| Oct. 30, 2013 | MMM | Non-qualified Stock Option (Right to Buy) | Common Stock | $84.40 | May 9, 2014 | 2,020 | Disposed |
| June 3, 2013 | MMM | Restricted Stock Units | Common Stock | · | · | 7,045 | Acquired |
| Feb. 8, 2013 | MMM | Restricted Stock Units | Common Stock | · | · | 911 | Disposed |
| Feb. 5, 2013 | MMM | Non-qualified Stock Option (Right to Buy) [F3] | Common Stock | $101.49 | Feb. 3, 2023 | 31,130 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 10 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 11, 2012 | MMM | Common Stock | 1,949 | Direct |
| April 11, 2012 | MMM | Restricted Stock Units | 911 | Direct |
| April 11, 2012 | MMM | Non-qualified Stock Option (Right to Buy) | 2,020 | Direct |
| April 11, 2012 | MMM | Non-qualified Stock Option (Right to Buy) | 2,236 | Direct |
| April 11, 2012 | MMM | Non-qualified Stock Option (Right to Buy) | 2,560 | Direct |
| April 11, 2012 | MMM | Non-qualified Stock Option (Right to Buy) | 1,131 | Direct |
| April 11, 2012 | MMM | Non-qualified Stock Option (Right to Buy) | 1,335 | Direct |
| April 11, 2012 | MMM | Non-qualified Stock Option (Right to Buy) [F3] | 4,100 | Direct |
| April 11, 2012 | MMM | Non-qualified Stock Option (Right to Buy) [F4] | 3,573 | Direct |
| April 11, 2012 | MMM | Non-qualified Stock Option (Right to Buy) [F5] | 5,360 | Direct |