Abbott Laboratories
MX ˙ BMV ˙ US0028241000
SecurityMX:ABT / Abbott Laboratories
InstitutionTufton Capital Management
Latest Disclosed Ownership65,869 shares
Latest Disclosed Value $ 6,762
Tufton Capital Management reports 0.93% decrease in ownership of ABT / Abbott Laboratories

On May 12, 2026 - Tufton Capital Management filed a 13F-HR form disclosing ownership of 65,869 shares of Abbott Laboratories (MX:ABT) valued at $6,762 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 66,489 shares of Abbott Laboratories. This represents a change in shares of -0.93% 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)
2026-05-12 2026-03-31 13F ABBOTT LABORATORIES COM COM 002824100 65,869 -620 -0.93 7 -25.00 1.2302
2026-01-28 2025-12-31 13F ABBOTT LABORATORIES COM 002824100 66,489 -202 -0.30 8 0.00 1.4561
2025-10-31 2025-09-30 13F ABBOTT LABORATORIES COM 002824100 66,691 -519 -0.77 9 -11.11 1.5922
2025-08-05 2025-06-30 13F ABBOTT LABORATORIES COM 002824100 67,210 -2,082 -3.00 9 -99.90 1.7380
2025-05-06 2025-03-31 13F ABBOTT LABORATORIES COM 002824100 69,292 -1,965 -2.76 9,192 14.05 1.7705
2025-02-05 2024-12-31 13F ABBOTT LABORATORIES COM 002824100 71,257 -146 -0.20 8,060 -1.00 1.5245
2024-11-08 2024-09-30 13F ABBOTT LABORATORIES COM 002824100 71,403 -2,770 -3.73 8,141 5.62 1.5261
2024-07-31 2024-06-30 13F ABBOTT LABORATORIES COM 002824100 74,173 4,525 6.50 7,707 -2.64 1.4988
2024-05-07 2024-03-31 13F ABBOTT LABORATORIES COM 002824100 69,648 -218 -0.31 7,916 2.94 1.5546
2024-01-31 2023-12-31 13F ABBOTT LABS COM 002824100 69,866 -865 -1.22 7,690 12.26 1.6132
2023-10-30 2023-09-30 13F/A-1 ABBOTT LABS COM 002824100 70,731 -380 -0.53 6,850 -11.64 1.5283
2023-10-30 2023-09-30 13F ABBOTT LABS COM 002824100 70,731 -380 6,850 1.5283
2023-07-28 2023-06-30 13F ABBOTT LABS COM 002824100 71,111 -2,017 -2.76 7,753 4.70 1.6725
2023-04-19 2023-03-31 13F ABBOTT LABS COM 002824100 73,128 369 0.51 7,405 -7.31 1.6015
2023-01-26 2022-12-31 13F ABBOTT LABS COM 002824100 72,759 -115 -0.16 7,988 13.29 1.7574
2022-10-21 2022-09-30 13F ABBOTT LABS COM 002824100 72,874 -147 -0.20 7,051 -11.12 1.7020
2022-07-20 2022-06-30 13F ABBOTT LABS COM 002824100 73,021 16 0.02 7,933 -8.18 1.4819
2022-04-25 2022-03-31 13F ABBOTT LABS COM 002824100 73,005 -10,708 -12.79 8,640 -26.66 1.3965
2022-01-28 2021-12-31 13F ABBOTT LABS COM 002824100 83,713 -261 -0.31 11,781 18.77 1.8089
2021-10-21 2021-09-30 13F ABBOTT LABS COM 002824100 83,974 -4,775 -5.38 9,919 -3.59 1.6790
2021-07-29 2021-06-30 13F ABBOTT LABS COM 002824100 88,749 3,042 3.55 10,288 0.17 1.6897
2021-04-22 2021-03-31 13F ABBOTT LABS COM 002824100 85,707 -3,174 -3.57 10,271 5.55 1.7548
2021-02-01 2020-12-31 13F ABBOTT LABS COM 002824100 88,881 -234 -0.26 9,731 0.34 1.7944
2020-10-23 2020-09-30 13F ABBOTT LABS COM 002824100 89,115 -905 -1.01 9,698 17.84 2.0035
2020-07-27 2020-06-30 13F ABBOTT LABS COM 002824100 90,020 -1,034 -1.14 8,230 14.54 1.8125
2020-04-23 2020-03-31 13F ABBOTT LABS COM 002824100 91,054 864 0.96 7,185 -8.27 1.8421
2020-01-24 2019-12-31 13F ABBOTT LABS COM 002824100 90,190 -2,126 -2.30 7,833 1.41 1.5415
2019-10-25 2019-09-30 13F ABBOTT LABS COM 002824100 92,316 -2,083 -2.21 7,724 -2.70 1.6300
2019-07-26 2019-06-30 13F ABBOTT LABORATORIES COM 002824100 94,399 -988 -1.04 7,938 4.10 1.6785
2019-04-29 2019-03-31 13F ABBOTT LABORATORIES COM 002824100 95,387 -1,970 -2.02 7,625 8.29 1.6239
2019-01-28 2018-12-31 13F ABBOTT LABS COM COM 002824100 97,357 -7,018 -6.72 7,041 -8.03 1.7273
2018-10-26 2018-09-30 13F ABBOTT LABS COM COM 002824100 104,375 -2,780 -2.59 7,656 17.15 1.6287
2018-08-06 2018-06-30 13F ABBOTT LABS COM COM 002824100 107,155 -3,884 -3.50 6,535 -1.77 1.4014
2018-04-23 2018-03-31 13F ABBOTT LABS COM COM 002824100 111,039 -2,223 -1.96 6,653 2.92 1.3127
2018-01-26 2017-12-31 13F ABBOTT LABS COM COM 002824100 113,262 -2,553 -2.20 6,464 4.60 1.2452
2017-10-20 2017-09-30 13F ABBOTT LABS COM COM 002824100 115,815 -755 -0.65 6,180 9.07 1.2362
2017-07-28 2017-06-30 13F ABBOTT LABS COM COM 002824100 116,570 -340 -0.29 5,666 9.13 1.1499
2017-04-28 2017-03-31 13F ABBOTT LABS COM COM 002824100 116,910 390 0.33 5,192 16.00 1.0231
2017-01-31 2016-12-31 13F ABBOTT LABS COM COM 002824100 116,520 36,808 46.18 4,476 32.78 0.9081
2016-10-21 2016-09-30 13F ABBOTT LABS COM COM 002824100 79,712 2,185 2.82 3,371 10.60 0.6796
2016-07-26 2016-06-30 13F ABBOTT LABS COM COM 002824100 77,527 -325 -0.42 3,048 -6.42 0.6172
2016-04-13 2016-03-31 13F ABBOTT LABS COM COM 002824100 77,852 10,231 15.13 3,257 7.24 0.8109
2016-01-19 2015-12-31 13F ABBOTT LABS COM COM 002824100 67,621 1,294 1.95 3,037 13.83 0.7473
2015-10-22 2015-09-30 13F ABBOTT LABS COM 002824100 66,327 -3,101 -4.47 2,668 -21.71 0.5862
2015-07-23 2015-06-30 13F ABBOTT LABS COM 002824100 69,428 -10,090 -12.69 3,408 -7.49 0.6885
2015-04-22 2015-03-31 13F ABBOTT LABS COM 002824100 79,518 79,518 0.00 3,684 0.6753
2015-02-02 2014-12-31 13F ABBOTT LABS COM 002824100 0 -80,647 -100.00 0 -100.00
2014-11-07 2014-09-30 13F ABBOTT LABS COM 002824100 80,647 -820 -1.01 3,354 0.66 0.6300
2014-07-16 2014-06-30 13F ABBOTT LABS COM 002824100 81,467 1,684 2.11 3,332 8.46 0.6752
2014-04-22 2014-03-31 13F ABBOTT LABS COM 002824100 79,783 2,695 3.50 3,072 3.96 0.6421
2014-01-30 2013-12-31 13F ABBOTT LABS COM 002824100 77,088 445 0.58 2,955 16.16 0.6329
2013-10-30 2013-09-30 13F ABBOTT LABS COM 002824100 76,643 -4 -0.01 2,544 -4.83 0.5996
2013-07-18 2013-06-30 13F ABBOTT LABS COM 002824100 76,647 76,647 2,673 0.6419
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.