3M Company
US ˙ NYSE ˙ US88579Y1010

SecurityMMM / 3M Company
InstitutionRoble, Belko & Company, Inc
Latest Disclosed Ownership608 shares
Latest Disclosed Value $ 88
Roble, Belko & Company, Inc reports 1.00% increase in ownership of MMM / 3M Company

On April 16, 2026 - Roble, Belko & Company, Inc filed a 13F-HR form disclosing ownership of 608 shares of 3M Company (US:MMM) valued at $88,300 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 602 shares of 3M Company. The current value of the position is $93,486 USD.

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)
2026-04-16 2026-03-31 13F 3M COM 88579Y101 608 6 1.00 0 0.0112
2026-01-12 2025-12-31 13F 3M COM 88579Y101 602 602 0 0.0126
2023-08-04 2023-06-30 13F 3M COM 88579Y101 0 -49 -100.00 0 0.0000
2023-05-10 2023-03-31 13F 3M COM 88579Y101 49 -676 -93.24 0 0.0010
2023-02-08 2022-12-31 13F 3M COM 88579Y101 725 -67 -8.46 0 -100.00 0.0185
2022-11-14 2022-09-30 13F 3M COM 88579Y101 792 -298 -27.34 88 -37.59 0.0214
2022-08-10 2022-06-30 13F 3M COM 88579Y101 1,090 -142 -11.53 141 -22.95 0.0320
2022-05-06 2022-03-31 13F 3M COM 88579Y101 1,232 -3,192 -72.15 183 -76.72 0.0348
2022-02-07 2021-12-31 13F 3M COM 88579Y101 4,424 -1,180 -21.06 786 -20.04 0.1477
2021-11-03 2021-09-30 13F 3M COM 88579Y101 5,604 -1,751 -23.81 983 -32.72 0.2022
2021-08-02 2021-06-30 13F 3M COM 88579Y101 7,355 -30 -0.41 1,461 2.67 0.3303
2021-05-12 2021-03-31 13F 3M COM 88579Y101 7,385 0 0.00 1,423 10.22 0.3433
2021-02-05 2020-12-31 13F 3M COM 88579Y101 7,385 0 0.00 1,291 9.13 0.3365
2020-11-10 2020-09-30 13F 3M COM 88579Y101 7,385 -662 -8.23 1,183 -5.74 0.3469
2020-08-10 2020-06-30 13F 3M COM 88579Y101 8,047 -696 -7.96 1,255 5.11 0.3762
2020-05-05 2020-03-31 13F 3M COM 88579Y101 8,743 7,644 695.54 1,194 515.46 0.3861
2020-01-13 2019-12-31 13F 3M COM 88579Y101 1,099 0 0.00 194 7.18 0.0537
2019-11-13 2019-09-30 13F 3M COM 88579Y101 1,099 1,039 1,731.67 181 1,710.00 0.0531
2019-08-13 2019-06-30 13F 3M COM 88579Y101 60 -240 -80.00 10 -83.87 0.0031
2019-05-10 2019-03-31 13F 3M COM 88579Y101 300 0 0.00 62 8.77 0.0212
2019-02-13 2018-12-31 13F 3M COM 88579Y101 300 0 0.00 57 -9.52 0.0219
2018-11-14 2018-09-30 13F 3M COM 88579Y101 300 0 0.00 63 6.78 0.0230
2018-08-08 2018-06-30 13F 3M COM 88579Y101 300 0 0.00 59 -10.61 0.0225
2018-05-14 2018-03-31 13F 3M COM 88579Y101 300 300 66 0.0256
2017-11-08 2017-09-30 13F 3M COM 88579Y101 0 -12 -100.00 0 -100.00
2017-08-11 2017-06-30 13F 3M COM 88579Y101 12 12 2 0.0010
2017-01-18 2016-12-31 13F 3M COM 88579Y101 0 -84 -100.00 0 -100.00
2016-11-01 2016-09-30 13F 3M COM 88579Y101 84 84 0.00 15 0.0080
2016-08-11 2016-06-30 13F 3M COM 88579Y101 0 -35 -100.00 0 -100.00
2016-05-09 2016-03-31 13F 3M COM 88579Y101 35 35 0.00 6 0.0034
2016-02-04 2015-12-31 13F 3M COM 88579Y101 0 0 0 0.0000
2015-08-12 2015-06-30 13F 3M CS 88579Y101 0 -56 -100.00 0 -100.00
2015-06-04 2015-03-31 13F/A-1 3M CS 88579Y101 56 56 9 0.0053
2015-05-14 2015-03-31 13F 3M CS 88579Y101 56 9
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.