3M Company
MX ˙ BMV ˙ US88579Y1010
SecurityMX:MMM / 3M Company
InstitutionWASHINGTON TRUST Co
Latest Disclosed Ownership4,177 shares
Latest Disclosed Value $ 606,626
WASHINGTON TRUST Co reports 29.00% increase in ownership of MMM / 3M Company

On April 6, 2026 - WASHINGTON TRUST Co filed a 13F-HR form disclosing ownership of 4,177 shares of 3M Company (MX:MMM) valued at $606,626 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 3,238 shares of 3M Company. This represents a change in shares of 29.00% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-06 2026-03-31 13F 3M Equities 88579Y101 4,177 939 29.00 607 16.99 0.0197
2026-02-10 2025-12-31 13F 3M Equities 88579Y101 3,238 9 0.28 518 3.39 0.0165
2025-11-12 2025-09-30 13F 3M Equities 88579Y101 3,229 -1,201 -27.11 501 -25.67 0.0164
2025-08-08 2025-06-30 13F 3M Equities 88579Y101 4,430 52 1.19 674 4.98 0.0238
2025-04-25 2025-03-31 13F 3M COM 88579Y101 4,378 -801 -15.47 643 -3.89 0.0246
2025-01-30 2024-12-31 13F 3M COM 88579Y101 5,179 250 5.07 669 -0.74 0.0240
2024-10-25 2024-09-30 13F 3M COM 88579Y101 4,929 -675 -12.04 674 17.66 0.0236
2024-07-15 2024-06-30 13F 3M COM 88579Y101 5,604 -159 -2.76 573 -6.38 0.0209
2024-04-23 2024-03-31 13F 3M COM 88579Y101 5,763 -281 -4.65 611 -7.42 0.0225
2024-01-18 2023-12-31 13F 3M COM 88579Y101 6,044 -326 -5.12 661 10.74 0.0261
2023-10-18 2023-09-30 13F 3M COM 88579Y101 6,370 -75 -1.16 596 -7.60 0.0262
2023-07-27 2023-06-30 13F 3M COM 88579Y101 6,445 -227 -3.40 645 -7.99 0.0272
2023-05-10 2023-03-31 13F/A-1 3M COM 88579Y101 6,672 -10 -0.15 701 -12.48 0.0316
2023-05-04 2023-03-31 13F 3M COM 88579Y101 7 -6,675 1 0.0296
2023-07-27 2022-12-31 13F/A-1 3M COM 88579Y101 6,682 -285 -4.09 801 4.03 0.0373
2023-02-08 2022-12-31 13F 3M COM 88579Y101 6,682 -285 1 0.0000
2022-10-14 2022-09-30 13F 3M COM 88579Y101 6,967 -2,239 -24.32 770 -35.35 0.0388
2022-07-25 2022-06-30 13F 3M COM 88579Y101 9,206 -725 -7.30 1,191 -19.47 0.0559
2022-05-05 2022-03-31 13F 3M COM 88579Y101 9,931 -302 -2.95 1,479 -18.65 0.0585
2022-02-09 2021-12-31 13F/A-1 3M COM 88579Y101 10,233 -3,864 -27.41 1,818 -26.46 0.0682
2022-02-09 2021-12-31 13F 3M COM 88579Y101 10,233 -3,864 1,818 0.0636
2021-11-09 2021-09-30 13F 3M COM 88579Y101 14,097 -202 -1.41 2,472 -12.96 0.0697
2021-08-05 2021-06-30 13F 3M COM 88579Y101 14,299 -337 -2.30 2,840 0.71 0.0801
2021-04-28 2021-03-31 13F 3M COM 88579Y101 14,636 -414 -2.75 2,820 7.18 0.0866
2021-02-09 2020-12-31 13F 3M COM 88579Y101 15,050 -145 -0.95 2,631 8.05 0.0849
2020-11-05 2020-09-30 13F 3M COM 88579Y101 15,195 -1,289 -7.82 2,435 -5.11 0.0900
2020-08-04 2020-06-30 13F 3M COM 88579Y101 16,484 -10,698 -39.36 2,566 -30.84 0.1066
2020-05-07 2020-03-31 13F 3M COM 88579Y101 27,182 -1,572 -5.47 3,710 -26.87 0.1769
2020-02-12 2019-12-31 13F 3M COM 88579Y101 28,754 6,380 28.52 5,073 37.44 0.1999
2019-11-06 2019-09-30 13F 3M COM 88579Y101 22,374 -17,610 -44.04 3,691 -46.75 0.1976
2019-08-07 2019-06-30 13F 3M COM 88579Y101 39,984 -21,193 -34.64 6,931 -36.56 0.3795
2019-05-13 2019-03-31 13F 3M COM 88579Y101 61,177 -967 -1.56 10,925 -7.74 0.6112
2019-02-11 2018-12-31 13F 3M COM 88579Y101 62,144 -680 -1.08 11,841 -10.55 0.7531
2018-11-13 2018-09-30 13F 3M COM 88579Y101 62,824 -770 -1.21 13,238 5.81 0.7087
2018-08-10 2018-06-30 13F 3M COM 88579Y101 63,594 8,016 14.42 12,511 2.54 0.6704
2018-05-10 2018-03-31 13F 3M COMMON STOCK 88579Y101 55,578 -1,205 -2.12 12,201 -8.72 0.7150
2018-02-05 2017-12-31 13F 3M COMMON STOCK 88579Y101 56,783 983 1.76 13,366 14.12 0.7522
2017-10-31 2017-09-30 13F 3M COMMON STOCK 88579Y101 55,800 419 0.76 11,712 1.58 0.6965
2017-08-03 2017-06-30 13F 3M COMMON STOCK 88579Y101 55,381 1,429 2.65 11,530 11.70 0.7025
2017-05-01 2017-03-31 13F 3M COMMON STOCK 88579Y101 53,952 -2 -0.00 10,322 7.14 0.6542
2017-02-08 2016-12-31 13F 3M COMMON STOCK 88579Y101 53,954 -773 -1.41 9,634 -0.10 0.6235
2016-11-03 2016-09-30 13F 3M COMMON STOCK 88579Y101 54,727 927 1.72 9,644 2.36 0.6345
2016-08-11 2016-06-30 13F 3M COMMON STOCK 88579Y101 53,800 492 0.92 9,422 6.07 0.6367
2016-05-05 2016-03-31 13F 3M COMMON STOCK 88579Y101 53,308 -527 -0.98 8,883 9.54 0.5927
2016-02-12 2015-12-31 13F 3M COMMON STOCK 88579Y101 53,835 -2,439 -4.33 8,109 1.64 0.5540
2015-11-12 2015-09-30 13F 3M COMMON STOCK 88579Y101 56,274 24,922 79.49 7,978 64.90 0.5760
2015-08-07 2015-06-30 13F 3M COMMON STOCK 88579Y101 31,352 -927 -2.87 4,838 -9.13 0.3188
2015-05-05 2015-03-31 13F 3M COMMON STOCK 88579Y101 32,279 -961 -2.89 5,324 -2.53 0.3534
2015-02-11 2014-12-31 13F 3M COMMON STOCK 88579Y101 33,240 1,737 5.51 5,462 22.36 0.3754
2014-11-12 2014-09-30 13F 3M COMMON STOCK 88579Y101 31,503 -492 -1.54 4,464 -2.60 0.3272
2014-08-12 2014-06-30 13F 3M COMMON STOCK 88579Y101 31,995 -185 -0.57 4,583 4.97 0.3359
2014-05-09 2014-03-31 13F 3M COMMON STOCK 88579Y101 32,180 -1,153 -3.46 4,366 -6.61 0.3284
2014-02-13 2013-12-31 13F 3M COMMON STOCK 88579Y101 33,333 -4,523 -11.95 4,675 3.43 0.3561
2013-11-08 2013-09-30 13F 3M COMMON STOCK 88579Y101 37,856 -6,616 -14.88 4,520 -7.05 0.3622
2013-08-14 2013-06-30 13F 3M COMMON STOCK 88579Y101 44,472 44,472 4,863 0.4104
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.