Abbott Laboratories
MX ˙ BMV ˙ US0028241000
SecurityMX:ABT / Abbott Laboratories
InstitutionS.A. Mason LLC
Latest Disclosed Ownership12,374 shares
Latest Disclosed Value $ 1,270,463
S.A. Mason LLC reports 2.72% increase in ownership of ABT / Abbott Laboratories

On April 27, 2026 - S.A. Mason LLC filed a 13F-HR form disclosing ownership of 12,374 shares of Abbott Laboratories (MX:ABT) valued at $1,270,463 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 12,046 shares of Abbott Laboratories. This represents a change in shares of 2.72% 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)
2026-04-27 2026-03-31 13F Abbott Laboratories COM 002824100 12,374 328 2.72 1,270 -15.84 0.4769
2026-01-29 2025-12-31 13F Abbott Laboratories COM 002824100 12,046 171 1.44 1,509 -5.09 0.5968
2025-10-14 2025-09-30 13F Abbott Laboratories COM 002824100 11,875 5 0.04 1,590 -1.49 0.7020
2025-07-14 2025-06-30 13F Abbott Laboratories COM 002824100 11,870 4 0.03 1,614 2.54 0.7812
2025-04-23 2025-03-31 13F Abbott Laboratories COM 002824100 11,866 49 0.41 1,574 17.81 0.8316
2025-01-24 2024-12-31 13F Abbott Laboratories COM 002824100 11,817 21 0.18 1,337 -0.60 0.7020
2024-10-25 2024-09-30 13F Abbott Laboratories COM 002824100 11,796 101 0.86 1,345 10.62 0.7130
2024-07-10 2024-06-30 13F Abbott Laboratories COM 002824100 11,695 102 0.88 1,215 -7.74 0.6910
2024-04-15 2024-03-31 13F Abbott Laboratories COM 002824100 11,593 7 0.06 1,318 3.29 0.7920
2024-01-17 2023-12-31 13F Abbott Laboratories COM 002824100 11,586 6 0.05 1,275 13.74 0.8552
2023-10-13 2023-09-30 13F Abbott Laboratories COM 002824100 11,580 -291 -2.45 1,121 -6.74 0.8086
2023-07-20 2023-06-30 13F Abbott Laboratories COM 002824100 11,871 0 0.00 1,202 0.00 0.8730
2023-05-10 2023-03-31 13F Abbott Laboratories COM 002824100 11,871 -84 -0.70 1,202 -8.38 0.8730
2023-01-10 2022-12-31 13F Abbott Laboratories COM 002824100 11,955 6 0.05 1,313 13.49 0.9884
2022-10-20 2022-09-30 13F Abbott Laboratories COM 002824100 11,949 -106 -0.88 1,156 -11.76 0.9144
2022-07-07 2022-06-30 13F Abbott Laboratories COM 002824100 12,055 -145 -1.19 1,310 -9.28 0.9569
2022-05-12 2022-03-31 13F Abbott Laboratories COM 002824100 12,200 435 3.70 1,444 -12.80 0.9006
2022-01-04 2021-12-31 13F Abbott Laboratories COM 002824100 11,765 -40 -0.34 1,656 18.71 0.9967
2021-10-12 2021-09-30 13F Abbott Laboratories COM 002824100 11,805 630 5.64 1,395 7.72 0.9185
2021-07-07 2021-06-30 13F Abbott Laboratories COM 002824100 11,175 -47 -0.42 1,295 -3.72 0.8908
2021-04-20 2021-03-31 13F Abbott Laboratories COM 002824100 11,222 2 0.02 1,345 9.53 1.0048
2021-02-02 2020-12-31 13F Abbott Laboratories COM 002824100 11,220 102 0.92 1,228 1.49 1.0224
2020-10-21 2020-09-30 13F Abbott Laboratories COM 002824100 11,118 -184 -1.63 1,210 17.13 1.1510
2020-07-27 2020-06-30 13F Abbott Laboratories COM 002824100 11,302 -47 -0.41 1,033 15.29 1.0886
2020-05-14 2020-03-31 13F Abbott Laboratories COM 002824100 11,349 91 0.81 896 -8.38 1.0877
2020-01-29 2019-12-31 13F Abbott Laboratories COM 002824100 11,258 11,258 978 0.9320
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.