3M Company
MX ˙ BMV ˙ US88579Y1010
SecurityMX:MMM / 3M Company
InstitutionChesapeake Wealth Management
Latest Disclosed Ownership2,900 shares
Latest Disclosed Value $ 421,167
Chesapeake Wealth Management ownership in MMM / 3M Company

On May 18, 2026 - Chesapeake Wealth Management filed a 13F-HR form disclosing ownership of 2,900 shares of 3M Company (MX:MMM) valued at $421,167 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 2,900 shares of 3M Company. This represents a change in shares of 0.00% 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)
2026-05-18 2026-03-31 13F 3M COM 88579Y101 2,900 0 0.00 421 -9.27 0.0724
2026-02-03 2025-12-31 13F 3M COM 88579Y101 2,900 0 0.00 464 3.11 0.1383
2025-11-03 2025-09-30 13F 3M COM 88579Y101 2,900 0 0.00 450 2.04 0.1373
2025-07-28 2025-06-30 13F 3M COM 88579Y101 2,900 0 0.00 441 3.76 0.1472
2025-05-08 2025-03-31 13F 3M COM 88579Y101 2,900 0 0.00 426 13.64 0.1519
2025-01-16 2024-12-31 13F 3M COM 88579Y101 2,900 0 0.00 374 -5.56 0.1284
2024-11-07 2024-09-30 13F 3M COM 88579Y101 2,900 0 0.00 396 33.78 0.1353
2024-08-13 2024-06-30 13F 3M COM 88579Y101 2,900 0 0.00 296 -3.58 0.1075
2024-05-07 2024-03-31 13F 3M COM 88579Y101 2,900 0 0.00 308 -3.15 0.1121
2024-02-12 2023-12-31 13F 3M COM 88579Y101 2,900 0 0.00 317 16.97 0.1224
2023-11-16 2023-09-30 13F 3M COM 88579Y101 2,900 0 0.00 271 -6.55 0.1132
2023-08-01 2023-06-30 13F 3M COM 88579Y101 2,900 0 0.00 290 -4.61 0.1144
2023-04-25 2023-03-31 13F 3M COM 88579Y101 2,900 0 0.00 305 -12.39 0.1271
2023-02-23 2022-12-31 13F 3M COM 88579Y101 2,900 -10 -0.34 348 8.10 0.1523
2022-10-28 2022-09-30 13F 3M COM 88579Y101 2,910 0 0.00 321 -14.85 0.1465
2022-07-21 2022-06-30 13F 3M COM 88579Y101 2,910 0 0.00 377 -12.93 0.1612
2022-04-19 2022-03-31 13F 3M COM 88579Y101 2,910 0 0.00 433 -16.25 0.1573
2022-02-03 2021-12-31 13F 3M COM 88579Y101 2,910 10 0.34 517 1.57 0.1740
2021-10-26 2021-09-30 13F 3M COM 88579Y101 2,900 -52 -1.76 509 -13.29 0.1820
2021-07-29 2021-06-30 13F 3M COM 88579Y101 2,952 0 0.00 587 3.16 0.1904
2021-04-26 2021-03-31 13F 3M COM 88579Y101 2,952 0 0.00 569 10.27 0.1904
2021-02-05 2020-12-31 13F 3M COM 88579Y101 2,952 0 0.00 516 9.09 0.1757
2020-11-12 2020-09-30 13F 3M COM 88579Y101 2,952 0 0.00 473 2.83 0.1767
2020-08-11 2020-06-30 13F 3M COM 88579Y101 2,952 0 0.00 460 14.14 0.1830
2020-04-29 2020-03-31 13F 3M COM 88579Y101 2,952 0 0.00 403 -22.65 0.1862
2020-01-29 2019-12-31 13F 3M COM 88579Y101 2,952 -54 -1.80 521 5.47 0.2008
2019-10-25 2019-09-30 13F 3M COM 88579Y101 3,006 -218 -6.76 494 -11.63 0.2013
2019-08-01 2019-06-30 13F 3M COM 88579Y101 3,224 -2,297 -41.60 559 -51.31 0.2337
2019-04-17 2019-03-31 13F 3M COM 88579Y101 5,521 2,466 80.72 1,148 97.25 0.5046
2019-02-06 2018-12-31 13F 3M COM 88579Y101 3,055 71 2.38 582 -7.47 0.2882
2018-11-14 2018-09-30 13F 3M COM 88579Y101 2,984 0 0.00 629 7.16 0.2796
2018-08-07 2018-06-30 13F 3M COM 88579Y101 2,984 0 0.00 587 -10.38 0.2707
2018-06-04 2018-03-31 13F 3M COM 88579Y101 2,984 2,984 655 0.3025
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.