Abbott Laboratories
US ˙ NYSE ˙ US0028241000

SecurityABT / Abbott Laboratories
InstitutionRe Advisers Corp
Latest Disclosed Ownership519,571 shares
Latest Disclosed Value $ 53,284,036
Re Advisers Corp reports 33.91% decrease in ownership of ABT / Abbott Laboratories

On May 8, 2026 - Re Advisers Corp filed a 13F-HR form disclosing ownership of 519,571 shares of Abbott Laboratories (US:ABT) valued at $53,344,355 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 786,171 shares of Abbott Laboratories. This represents a change in shares of -33.91% during the quarter. The current value of the position is $45,197,481 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)
2026-05-08 2026-03-31 13F ABBOT LABORATORIES COM 002824100 519,571 -266,600 -33.91 53,284 -45.90 1.4313
2026-02-10 2025-12-31 13F ABBOTT LABS COM 002824100 786,171 -106,975 -11.98 98,499 -17.66 2.6084
2025-11-05 2025-09-30 13F ABBOTT LABS COM 002824100 893,146 -15,600 -1.72 119,628 -3.21 2.8493
2025-08-05 2025-06-30 13F ABBOTT LABS COM 002824100 908,746 1,800 0.20 123,599 2.74 2.9287
2025-05-06 2025-03-31 13F ABBOTT LABS COM 002824100 906,946 0 0.00 120,306 17.28 2.9456
2025-02-12 2024-12-31 13F ABBOTT LABS COM 002824100 906,946 -17,900 -1.94 102,585 -2.71 2.4745
2024-11-01 2024-09-30 13F ABBOTT LABS COM 002824100 924,846 -73,400 -7.35 105,442 1.65 2.5090
2024-07-23 2024-06-30 13F ABBOTT LABS COM 002824100 998,246 -16,200 -1.60 103,728 -10.02 2.5564
2024-05-10 2024-03-31 13F ABBOTT LABS COM 002824100 1,014,446 -800 -0.08 115,273 3.15 2.7037
2024-02-13 2023-12-31 13F ABBOTT LABS COM 002824100 1,015,246 -85,900 -7.80 111,748 4.79 2.8555
2023-11-09 2023-09-30 13F ABBOTT LABS COM 002824100 1,101,146 -151,089 -12.07 106,646 -21.13 2.9615
2023-07-25 2023-06-30 13F ABBOTT LABS COM 002824100 1,252,235 172,789 16.01 135,217 23.71 3.5854
2023-04-27 2023-03-31 13F ABBOTT LABS COM 002824100 1,079,446 -54,800 -4.83 109,305 -12.30 3.0466
2023-02-03 2022-12-31 13F ABBOTT LABS COM 002824100 1,134,246 -34,000 -2.91 124,634 10.26 3.3252
2022-11-07 2022-09-30 13F ABBOTT LABS COM 002824100 1,168,246 -2,600 -0.22 113,039 -11.14 3.4200
2022-08-01 2022-06-30 13F ABBOTT LABS COM 002824100 1,170,846 0 0.00 127,212 -8.20 3.5981
2022-05-12 2022-03-31 13F ABBOTT LABS COM 002824100 1,170,846 -19,200 -1.61 138,581 -17.26 3.3926
2022-02-07 2021-12-31 13F ABBOTT LABS COM 002824100 1,190,046 -8,500 -0.71 167,487 18.30 3.8539
2021-11-05 2021-09-30 13F ABBOTT LABS COM 002824100 1,198,546 -39,000 -3.15 141,584 -1.31 3.4435
2021-08-02 2021-06-30 13F ABBOTT LABS COM 002824100 1,237,546 -38,000 -2.98 143,469 -6.14 3.3144
2021-05-07 2021-03-31 13F ABBOTT LABS COM 002824100 1,275,546 -62,100 -4.64 152,861 4.37 3.6545
2021-02-10 2020-12-31 13F ABBOTT LABS COM 002824100 1,337,646 -33,800 -2.46 146,459 -1.87 3.6212
2020-11-13 2020-09-30 13F ABBOTT LABS COM 002824100 1,371,446 -138,200 -9.15 149,254 8.13 4.0873
2020-08-13 2020-06-30 13F ABBOTT LABS COM 002824100 1,509,646 1,000 0.07 138,027 15.94 3.5455
2020-05-14 2020-03-31 13F ABBOTT LABS COM 002824100 1,508,646 -42,719 -2.75 119,047 -11.65 3.5086
2020-02-13 2019-12-31 13F ABBOTT LABS COM 002824100 1,551,365 -15,251 -0.97 134,752 2.80 2.8072
2019-11-14 2019-09-30 13F ABBOTT LABS COM 002824100 1,566,616 -52,384 -3.24 131,079 -3.73 2.6437
2019-08-12 2019-06-30 13F ABBOTT LABS COM 002824100 1,619,000 0 0.00 136,158 5.20 2.5780
2019-05-14 2019-03-31 13F ABBOTT LABS COM 002824100 1,619,000 0 0.00 129,423 10.52 2.4195
2019-02-13 2018-12-31 13F ABBOTT LABS COM 002824100 1,619,000 5,000 0.31 117,102 -1.10 2.2735
2018-11-13 2018-09-30 13F ABBOTT LABS COM 002824100 1,614,000 0 0.00 118,403 20.28 1.8119
2018-08-10 2018-06-30 13F ABBOT LABS COM 002824100 1,614,000 0 0.00 98,438 1.79 1.5467
2018-05-11 2018-03-31 13F ABBOT LABS COM 002824100 1,614,000 0 0.00 96,711 4.99 1.4523
2018-02-13 2017-12-31 13F ABBOTT LABS COM 002824100 1,614,000 0 0.00 92,111 6.95 1.3177
2017-11-13 2017-09-30 13F ABBOTT LABS COM 002824100 1,614,000 0 0.00 86,123 9.77 1.3104
2017-07-21 2017-06-30 13F ABBOTT LABORATORIES COM 002824100 1,614,000 0 0.00 78,457 9.46 1.2271
2017-05-11 2017-03-31 13F ABBOTT LABORATORIES COM 002824100 1,614,000 0 0.00 71,678 15.62 1.1436
2017-02-14 2016-12-31 13F ABBOTT LABORATORIES COM 002824100 1,614,000 0 0.00 61,994 -9.17 0.9758
2016-11-14 2016-09-30 13F ABBOTT LABORATORIES COM 002824100 1,614,000 0 0.00 68,256 7.58 1.1308
2016-08-10 2016-06-30 13F ABBOTT LABORATORIES COM 002824100 1,614,000 0 0.00 63,446 -6.03 1.0897
2016-05-13 2016-03-31 13F ABBOTT LABORATORIES COM 002824100 1,614,000 1,614,000 67,514 1.2076
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.