Abbott Laboratories
MX ˙ BMV ˙ US0028241000
SecurityMX:ABT / Abbott Laboratories
InstitutionFactory Mutual Insurance Co
Latest Disclosed Ownership198,300 shares
Latest Disclosed Value $ 20,359,461
Factory Mutual Insurance Co reports 3.90% increase in ownership of ABT / Abbott Laboratories

On May 5, 2026 - Factory Mutual Insurance Co filed a 13F-HR form disclosing ownership of 198,300 shares of Abbott Laboratories (MX:ABT) valued at $20,359,461 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 190,850 shares of Abbott Laboratories. This represents a change in shares of 3.90% 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)
2026-05-05 2026-03-31 13F ABBOTT LABORATORIES COM 002824100 198,300 7,450 3.90 20,359 -14.86 0.2291
2026-01-23 2025-12-31 13F ABBOTT LABS COM 002824100 190,850 -7,450 -3.76 23,912 -9.97 0.2424
2025-11-10 2025-09-30 13F ABBOTT LABS COM 002824100 198,300 0 0.00 26,560 -1.52 0.2587
2025-08-07 2025-06-30 13F ABBOTT LABS COM 002824100 198,300 0 0.00 26,971 2.53 0.2948
2025-04-17 2025-03-31 13F ABBOTT LABS COM 002824100 198,300 0 0.00 26,304 17.28 0.3052
2025-01-24 2024-12-31 13F ABBOTT LABS COM 002824100 198,300 0 0.00 22,430 -0.79 0.2425
2024-10-10 2024-09-30 13F ABBOTT LABS COM 002824100 198,300 -3,300 -1.64 22,608 7.92 0.2338
2024-07-23 2024-06-30 13F ABBOTT LABS COM 002824100 201,600 -3,200 -1.56 20,948 -10.01 0.2386
2024-04-12 2024-03-31 13F ABBOTT LABS COM 002824100 204,800 -6,800 -3.21 23,278 -0.06 0.2674
2024-01-23 2023-12-31 13F ABBOTT LABS COM 002824100 211,600 0 0.00 23,291 13.65 0.2893
2023-11-07 2023-09-30 13F ABBOTT LABS COM 002824100 211,600 0 0.00 20,493 -11.16 0.2859
2023-07-27 2023-06-30 13F ABBOTT LABS COM 002824100 211,600 0 0.00 23,069 7.66 0.3403
2023-05-08 2023-03-31 13F ABBOTT LABS COM 002824100 211,600 -10,700 -4.81 21,427 -12.21 0.3349
2023-02-02 2022-12-31 13F ABBOTT LABS COM 002824100 222,300 0 0.00 24,406 13.46 0.3691
2022-11-04 2022-09-30 13F ABBOTT LABS COM 002824100 222,300 -3,600 -1.59 21,510 -12.36 0.3532
2022-08-08 2022-06-30 13F ABBOTT LABS COM 002824100 225,900 -7,000 -3.01 24,544 -10.96 0.4024
2022-05-13 2022-03-31 13F ABBOTT LABS COM 002824100 232,900 -9,100 -3.76 27,566 -6.08 0.3728
2022-02-10 2021-12-31 13F ABBOTT LABS COM 002824100 242,000 -51,992 -17.68 29,350 -15.49 0.4237
2021-11-12 2021-09-30 13F ABBOTT LABS COM 002824100 293,992 -2,300 -0.78 34,729 1.10 0.4338
2021-07-14 2021-06-30 13F ABBOTT LABS COM 002824100 296,292 -7,952 -2.61 34,350 -5.79 0.4201
2021-05-10 2021-03-31 13F ABBOTT LABS COM 002824100 304,244 -3,756 -1.22 36,460 8.12 0.4664
2021-02-17 2020-12-31 13F ABBOTT LABS COM 002824100 308,000 -12,800 -3.99 33,723 -3.41 0.4559
2020-10-19 2020-09-30 13F ABBOTT LABS COM 002824100 320,800 0 0.00 34,913 19.03 0.5650
2020-07-13 2020-06-30 13F ABBOTT LABS COM 002824100 320,800 -35,600 -9.99 29,331 4.30 0.5030
2020-04-16 2020-03-31 13F ABBOTT LABS COM 002824100 356,400 -34,400 -8.80 28,123 -17.15 0.5341
2020-01-28 2019-12-31 13F ABBOTT LABS COM 002824100 390,800 -76,000 -16.28 33,945 -13.09 0.5005
2019-10-22 2019-09-30 13F ABBOTT LABS COM 002824100 466,800 -62,500 -11.81 39,057 -12.26 0.6038
2019-07-16 2019-06-30 13F ABBOTT LABS COM 002824100 529,300 0 0.00 44,515 6.75 0.5322
2019-04-09 2019-03-31 13F ABBOTT LABS COM 002824100 529,300 -102,400 -16.21 41,699 -8.74 0.4924
2019-01-14 2018-12-31 13F ABBOTT LABS COM 002824100 631,700 0 0.00 45,691 -1.40 0.5863
2018-10-10 2018-09-30 13F ABBOTT LABS COM 002824100 631,700 20,700 3.39 46,341 24.36 0.4810
2018-07-19 2018-06-30 13F ABBOTT LABS COM 002824100 611,000 6,300 1.04 37,265 2.85 0.3999
2018-04-05 2018-03-31 13F ABBOTT LABS COM 002824100 604,700 0 0.00 36,233 4.99 0.3968
2018-01-16 2017-12-31 13F ABBOTT LABS COM 002824100 604,700 0 0.00 34,510 6.95 0.3610
2017-10-11 2017-09-30 13F ABBOTT LABS COM 002824100 604,700 12,000 2.02 32,266 11.99 0.3537
2017-07-10 2017-06-30 13F ABBOTT LABS COM 002824100 592,700 0 0.00 28,811 9.46 0.3332
2017-04-21 2017-03-31 13F ABBOTT LABS COM 002824100 592,700 -60,000 -9.19 26,322 3.86 0.3118
2017-01-19 2016-12-31 13F ABBOTT LABS COM 002824100 652,700 0 0.00 25,344 -8.18 0.3007
2016-10-26 2016-09-30 13F ABBOTT LABS COM 002824100 652,700 -50,000 -7.12 27,603 -0.07 0.3413
2016-07-12 2016-06-30 13F ABBOTT LABS COM 002824100 702,700 0 0.00 27,623 -6.03 0.3639
2016-04-27 2016-03-31 13F ABBOTT LABS COM 002824100 702,700 0 0.00 29,394 -6.86 0.3804
2016-01-14 2015-12-31 13F ABBOTT LABS COM 002824100 702,700 0 0.00 31,558 11.66 0.4245
2015-10-14 2015-09-30 13F ABBOTT LABS COM 002824100 702,700 0 0.00 28,263 -18.05 0.3866
2015-07-21 2015-06-30 13F ABBOTT LABS COM 002824100 702,700 0 0.00 34,489 5.94 0.4505
2015-04-13 2015-03-31 13F ABBOTT LABS COM 002824100 702,700 0 0.00 32,555 2.90 0.4289
2015-01-12 2014-12-31 13F ABBOTT LABS COM 002824100 702,700 -20,000 -2.77 31,636 5.25 0.4263
2014-11-04 2014-09-30 13F ABBOTT LABS COM 002824100 722,700 -9,300 -1.27 30,057 0.39 0.4157
2014-08-12 2014-06-30 13F ABBOTT LABS COM 002824100 732,000 0 0.00 29,939 6.21 0.4094
2014-05-15 2014-03-31 13F ABBOTT LABS COM 002824100 732,000 0 0.00 28,189 0.47 0.4081
2014-02-04 2013-12-31 13F ABBOTT LABS COM 002824100 732,000 0 0.00 28,058 15.49 0.4126
2013-10-16 2013-09-30 13F ABBOTT LABS COM 002824100 732,000 -50,000 -6.39 24,295 -10.93 0.3853
2013-07-25 2013-06-30 13F ABBOTT LABS COM 002824100 782,000 782,000 27,276 0.4470
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.