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MMM 3M CO Insider Trading

Latest: Group President Bought $1,822 of Shares · May 2024
17 filings analyzed · Latest 2026-04-09
Insider buys
1
Insider sells
16
Unique insiders
7
Direction
Net selling
April 2026
2026-04-09
low
Goralski Christian T JR Buy
Group President
17 shares
$1,822
@ $107.18
Significance 4/10

Group President Goralski purchased 17 shares of MMM across 4 transactions totaling $1.8K, blended avg $107.18; now holds 6,971 shares (+0.2%).

Goralski made 4 separate purchases of MMM stock between May and October 2024, acquiring 17 shares totaling $1.8K at a blended average price of $107.18. His post-transaction holdings of 6,971 shares represent only a +0.2% increase, indicating these were minimal additions to an already substantial position. The current stock price of $150.50 is -13.8% from the 52-week high and -3.1% over 30 days, placing the transaction prices well below recent market levels. His cross-ticker track record shows 2 prior sells with a 50.00% well-timed rate at the 90-day mark, while same-ticker history at MMM shows mixed outcomes (1 of 2 prior sells well-timed). The modest transaction size and fractional share additions suggest routine portfolio activity rather than a significant conviction signal.

February 2026
2026-02-12
medium
Reinseth Theresa E Sell
Sr Vice President & CAO
5,145 shares
$888,796
@ $172.75
Significance 4/10

3M Chief Administrative Officer sells 5,145 shares for $888,795.76 at blended average $172.75; reduces stake by 66.6%.

Theresa E Reinseth, Senior Vice President & Chief Administrative Officer, executed five separate sales on 2026-02-11 totaling 5,145 shares (5.1K shares) for $888,795.76 ($888.8K) at prices ranging from $172.72 to $172.79, with a blended average of $172.75. The sale reduced her holdings from 7,729 shares to 2,584 shares, representing a 66.6% reduction in her pre-transaction position. At the time of the sale, 3M's stock traded near its 52-week high of $174.61, having appreciated 3.1% over the prior 30 days and 4.2% over 90 days. Her prior open-market sell at this ticker on 2025-08-05 was poorly timed by the 90-day standard: the stock rose 7.7% in the 90 days following that sale. The magnitude of the stake reduction and the proximity of transaction prices to the current 52-week high warrant monitoring of subsequent filing activity and company fundamentals.

2026-02-10
medium
Dickson Zoe L Sell
EVP & Chief HR Officer
20,519 shares
$3,487,614
@ $169.97
Significance 5/10

Dickson Zoe L (EVP & Chief HR Officer) sold 20,519 shares of MMM at $169.97, reducing holdings by 49.3%, with stock at 52-week high.

Dickson sold 20,519 shares at $169.97 on 2026-02-09, reducing her position from 41,642 to 21,123 shares (−49.3% of prior holdings). The sale occurred at $169.97 while the current price stands at $173.43, near the 52-week high of $173.43, placing this transaction just 1.9% below the recent peak. Her cross-ticker track record shows 20 prior sells with an average 30-day return of −0.5%, though same-ticker history at MMM (4 measurable prior sales) consistently posted small negative 30-day returns (−0.5% to −0.6%), with none yet measurable at the 90-day horizon. The magnitude of this reduction—nearly half her MMM position—alongside execution near peak valuation suggests deliberate portfolio adjustment, though the company's P/E of 36.90 and modest revenue growth of +1.5% year-over-year provide context for sector positioning.

2026-02-10
medium
Dickson Zoe L Sell
EVP & Chief HR Officer
25,055 shares
$4,267,869
@ $170.34
Significance 5/10

EVP & Chief HR Officer Dickson Zoe L sold 25,055 shares of MMM at $170.34, reducing holdings by 54.3% to 21,123 shares.

Dickson Zoe L, EVP & Chief HR Officer, executed a substantial open-market sale of 25,055 shares at $170.34 on 2026-02-09, totaling $4,267,868.70, which reduced her holdings from 46,178 shares to 21,123 shares—a 54.3% reduction in position size. The sale occurred near the 52-week high of $173.43, with the stock up 5.0% over the prior 30 days. Her prior trades at MMM (four sales in November 2025) generated modest negative 30-day returns averaging -0.5%, and cross-ticker history shows 20 prior sales averaging -0.5% over 30 days. The company trades at a P/E of 36.90 with annual revenue growth of 1.5%, suggesting a mature, valued business facing modest organic expansion; latest quarterly net income of $834.0M supports ongoing profitability. The substantial reduction in her personal stake warrants monitoring against the company's fundamentals and market positioning.

November 2025
2025-11-14
high
Dickson Zoe L Sell
EVP & Chief HR Officer
13,826 shares
$2,347,371
@ $169.78
Significance 5/10

EVP & Chief HR Officer Dickson sells 13,826 shares of 3M for $2.3M in 17 transactions, reducing stake by 69.2%.

Dickson Zoe L, EVP & Chief HR Officer, executed 17 separate sales on 2025-11-13 totaling 13,826 shares (13.8K shares) for $2,347,371.44 ($2.3M), at a blended average price of $169.78. This represented a significant reduction in her position, with post-transaction holdings of 6,161 shares compared to pre-transaction holdings of 19,987 shares, a net reduction of 69.2%. The stock has gained 9.2% over the past 30 days and 10.0% over 90 days, and is currently trading at $167.58, only 2.3% below its 52-week high of $171.60. Against broader context, 3M's annual revenue has contracted 24.8% year-over-year, and despite near-peak pricing, the P/E remains elevated at 26.18. The scale and timeliness of this disposition—coinciding with the stock near its annual highs following recent strength—warrant investor attention to whether this signals executive perspective on forward valuation or near-term prospects at a company already facing significant revenue headwinds.

2025-11-14
high
Dickson Zoe L Sell
EVP & Chief HR Officer
13,629 shares
$2,314,538
@ $169.82
Significance 6/10

3M EVP Zoe Dickson sells 13,629 shares for $2.3M across 28 transactions (blended avg $169.82) on 2025-11-13, reducing holdings by -68.9%.

Dickson sold 13,629 shares (13.6K shares) in 28 separate transactions totaling $2,314,537.95 ($2.3M) on 2025-11-13, reducing her stake from 19,790 shares (19.8K shares) to 6,161 shares (6.2K shares) — a -68.9% reduction in holdings. The blended average price of $169.82 was near the 52-week high of $171.60, suggesting the transaction occurred during a period of relative strength. However, the timing pattern is not measurable for this filing itself. 3M's fundamentals show concerning trends: annual revenue growth (FY vs prior FY) is -24.8%, and the company's P/E of 26.18 is elevated relative to its recent market performance, which has returned +9.2% over 30 days but comes after a prior -24.8% annual revenue contraction. The large, concentrated sale of a substantial majority of her holdings in a single trading day warrants examination of the underlying circumstances, though the structured nature of the multi-tranche execution across 28 price points suggests a programmatic approach rather than a panic liquidation.

October 2025
2025-10-30
high
Murphy Mark W. Sell
EVP & Chief Info Digital Off
19,061 shares
$3,174,589
@ $166.55
Significance 7/10

3M CFO Murphy sells 19,061 shares for $3,174,589.10; trimmed stake by 74.3% to 6,594 shares

Murphy Mark W. (EVP & Chief Info Digital Off) executed 20 separate sales totaling 19,061 shares for $3,174,589.10 at a blended average price of $166.55 on 2025-10-29. This represents a reduction of 74.3% in his shareholding, from 25,655 shares to 6,594 shares post-transaction. The large scale of the reduction and the multi-tranche execution across a tight price range ($166.45–$166.75) stand out given that MMM's stock is up 7.3% over 30 days and 15.3% over 90 days. The company faces headwinds: annual revenue declined 24.8% year-over-year, and the P/E of 26.01 sits elevated relative to historical norms, limiting downside support despite the recent price momentum. A high-ranking officer liquidating three-quarters of his position warrants attention to the underlying business trajectory and any non-public signals about management's confidence in forward performance.

August 2025
2025-08-08
high
Goralski Christian T JR Sell
Group President
6,165 shares
$925,860
@ $150.18
Significance 6/10

Group President Goralski sells 6,165 shares of MMM at $150.18; holdings drop 68.0% to 2.9K shares

Christian T Goralski Jr, Group President, executed a substantial open-market sale of 6,165 shares at $150.18, reducing his MMM holdings by 68.0% to 2,900 shares post-transaction. At the prior transaction price, the stock was trading near its 52-week high; it now sits at $153.30, down 1.7% over 30 days and up 7.5% over 90 days. His cross-ticker track record shows 4 prior buys (avg 90d return +21.5%) and 1 prior sell with a 90d well-timed rate of 100.00%, though his same-ticker history at MMM is mixed—5 prior trades there show a 100% well-timed rate at the 90-day mark across all directions. The company faces headwinds: annual revenue declined 24.8% year-over-year on a latest-quarter revenue base of $6.3B with net income of $723.0M, and the P/E of 20.72 sits at the higher end relative to recent trading. This large reduction in a senior executive's stake warrants closer examination of the underlying business momentum and the director's own assessment of near-term prospects.

2025-08-06
medium
Reinseth Theresa E Sell
Sr Vice President & CAO
3,477 shares
$523,741
@ $150.63
Significance 5/10

Sr VP & CAO Reinseth sells 3,477 MMM shares (-57.6% holdings) for $523.7K at $150.63

Theresa E Reinseth, Sr Vice President & CAO, sold 3,477 shares of 3M CO, reducing her post-transaction holdings to 2,560 shares from 6,037 shares—a 57.6% reduction in her stake. The sale occurred at $150.63 per share for total proceeds of $523,740.51. In context, 3M's annual revenue growth has declined by 24.8% year-over-year, and the company's P/E stands at 20.38 with market cap of $80,331,211,655.64, suggesting headwinds in operational performance. The scale of the holding reduction—more than half her position divested—combined with deteriorating revenue trends, warrants investor attention to whether this reflects broader confidence assessments within the executive suite.

May 2025
2025-05-27
medium
Banovetz John Patrick Sell
Executive Vice President
7,759 shares
$1,151,237
@ $148.37
Significance 5/10

3M EVP Banovetz sells 7,759 shares (7.8K) for $1,151,237.03 on 2025-05-23 at blended $148.37; -19.8% of holdings post-sale.

John Patrick Banovetz, Executive Vice President at 3M, executed 5 separate sales totaling 7,759 shares for $1,151,237.03 at blended average price $148.37, reducing his post-transaction holdings to 31,372 shares, a -19.8% reduction from pre-transaction holdings of 39,131 shares. The current price of $149.49 sits -3.6% from the 52-week high of $155.12, and the stock has returned +8.9% over the past 30 days and +1.4% over 90 days. Banovetz's cross-ticker track record shows 1 prior sell with 90-day return of -9.3%, achieving a 100.00% well-timed rate across all tickers; his same-ticker history at MMM (1 prior sell on 2025-01-27) posted a 90-day return of -9.3%, suggesting a pattern of favorable timing on exits. With 3M's annual revenue growth of -24.8% and P/E of 18.46, this material reduction in executive equity stake during a period of corporate revenue contraction warrants observation of whether additional insiders are adjusting positions.

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