Wednesday, September 16, 2026Latest filing Sep 14, 2026

MMM Congressional Stock Trades

3M COMPANY CMN

Last disclosed trade Apr 28

Every disclosed trade in MMM by members of Congress under the STOCK Act, parsed by Coldpine. Informational only, sourced from public filings. Not investment advice.

Sample · the intelligence layer

Coldpine signal scoreA 0-1 composite from four weighted factors: disclosure speed, trade size, cluster activity (multiple members buying the same name), and the member’s track record. ≥ 0.65 is the high-conviction tier; ≥ 0.50 is moderate. Trades from trust-managed members are penalized (× 0.2 multiplier). It’s research, not a recommendation.

Tina Smith · Sold $MMM · Mar 31 · $50K–$100K

0.61MED
Disclosure speedx 0.251.00
Trade sizex 0.250.75
Cluster activityx 0.150.00
Track recordx 0.35default0.50

Every disclosed trade in the database gets this treatment: a four-factor score and a written read from Coldpine’s AI-based analysis. Informational only, not investment advice. Create a free account for every scored trade →

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29
Disclosed trades
18
Buys
11
Sells
9
Members trading

The record on $MMM

Coldpine has parsed 29 disclosed trades in $MMM by 9 members of Congress, drawn from 24 periodic transaction reports dated Mar 14, 2023 through Apr 28, 2026. That is 27 trades from House members and 2 trades from senators, filed 23 by Democrats and 6 by Republicans.

Of the 29 trades with a known filing lag, 2 were reported more than 45 days after the trade date, outside the window the STOCK Act sets. The median lag was 26 days. The longest was 395 days: a $MMM purchase by Julie Johnson dated Mar 15, 2024, disclosed Apr 14, 2025. How late filing is measured across all of Congress is in the late-filers study.

24 of the 26 trades that list an account holder (92%) were reported under a spouse, dependent child, or joint account rather than the member directly.

Rohit Khanna filed the most $MMM purchases (12), and Rohit Khanna the most sales (5).

Activity peaked in 2023 with 11 trades. The busiest single month was April 2026, when 2 different members disclosed $MMM trades.

Across the 18 purchases Coldpine can price, $MMM moved +5.64% on average between the trade date and the disclosure date, against +2.86% for the S&P 500 over the same windows. The stock was higher at disclosure than at the trade in 72% of those purchases. That is a record of what already happened, not a forecast. Method: what stocks do before Congress discloses.

Members who trade MMM

Recent disclosed trades in MMM

DateMemberTypeAmount
Apr 28Josh Gottheimer(NJ)sell$1K–$15K
Apr 24Rohit Khanna(CA)sell$15K–$50K
Apr 13Rohit Khanna(CA)sell$1K–$15K
Mar 31Tina Smith(MN)sell$50K–$100K
Mar 27Alan Armstrong(OK)buy$1K–$15K
Feb 4Julia Letlow(LA)sell$1K–$15K
Feb 2Julia Letlow(LA)sell$1K–$15K
Oct 20Josh Gottheimer(NJ)sell$1K–$15K
Jul 25Rohit Khanna(CA)sell
Jun 18Julie Johnson(TX)buy$1K–$15K
May 23Rob Bresnahan(PA)sell$15K–$50K
May 19Rohit Khanna(CA)buy$1K–$15K
Mar 12Julie Johnson(TX)buy$1K–$15K
Jan 22Rohit Khanna(CA)buy$1K–$15K
Nov 15Rohit Khanna(CA)buy$1K–$15K
Apr 23Rohit Khanna(CA)buy$1K–$15K
Mar 15Julie Johnson(TX)buy$1K–$15K
Feb 13Rohit Khanna(CA)sell$1K–$15K
Dec 4Rohit Khanna(CA)buy$1K–$15K
Nov 22James French Hill(AR)buy$15K–$50K

Showing 20 of 29 disclosed trades.

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Data sourced from public STOCK Act disclosures. Coldpine is a publisher of intelligence on congressional disclosures, not an investment adviser. See full history and scores, free with an account →