Abbott Laboratories
MX ˙ BMV ˙ US0028241000
SecurityMX:ABT / Abbott Laboratories
InstitutionGladstone Institutional Advisory LLC
Latest Disclosed Ownership26,887 shares
Latest Disclosed Value $ 2,760,529
Gladstone Institutional Advisory LLC reports 9.15% increase in ownership of ABT / Abbott Laboratories

On May 14, 2026 - Gladstone Institutional Advisory LLC filed a 13F-HR form disclosing ownership of 26,887 shares of Abbott Laboratories (MX:ABT) valued at $2,760,529 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 24,633 shares of Abbott Laboratories. This represents a change in shares of 9.15% 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)
2026-05-14 2026-03-31 13F ABBOTT LABORATORIES COM 002824100 26,887 2,254 9.15 2,761 -10.56 0.1023
2026-02-17 2025-12-31 13F ABBOTT LABS COM 002824100 24,633 1,078 4.58 3,086 -2.16 0.1166
2025-10-22 2025-09-30 13F ABBOTT LABS COM 002824100 23,555 121 0.52 3,155 -1.04 0.1215
2025-08-12 2025-06-30 13F ABBOTT LABS COM 002824100 23,434 -1,276 -5.16 3,187 -2.75 0.1317
2025-05-15 2025-03-31 13F ABBOTT LABS COM 002824100 24,710 -258 -1.03 3,278 16.04 0.1528
2025-01-29 2024-12-31 13F ABBOTT LABS COM 002824100 24,968 -598 -2.34 2,824 -3.09 0.1310
2024-10-28 2024-09-30 13F ABBOTT LABS COM 002824100 25,566 -2,639 -9.36 2,915 -0.55 0.1423
2024-08-02 2024-06-30 13F ABBOTT LABS COM 002824100 28,205 2,522 9.82 2,931 0.38 0.1526
2024-05-14 2024-03-31 13F ABBOTT LABS COM 002824100 25,683 7,801 43.62 2,919 48.32 0.1602
2024-02-09 2023-12-31 13F ABBOTT LABS COM 002824100 17,882 2,769 18.32 1,968 34.52 0.1104
2023-11-13 2023-09-30 13F ABBOTT LABS COM 002824100 15,113 -2,911 -16.15 1,464 -25.51 0.0948
2023-08-10 2023-06-30 13F ABBOTT LABS COM 002824100 18,024 -5,947 -24.81 1,965 -19.08 0.1198
2023-05-12 2023-03-31 13F ABBOTT LABS COM 002824100 23,971 -5,239 -17.94 2,427 -24.30 0.1572
2023-02-01 2022-12-31 13F ABBOTT LABS COM 002824100 29,210 87 0.30 3,207 13.77 0.2263
2023-01-30 2022-09-30 13F/A-1 ABBOTT LABS COM 002824100 29,123 2,350 8.78 2,818 -3.13 0.2203
2022-10-20 2022-09-30 13F ABBOTT LABS COM 002824100 29,123 2,350 2,818 0.2203
2023-01-30 2022-06-30 13F/A-1 ABBOTT LABS COM 002824100 26,773 13,377 99.86 2,909 83.53 0.2301
2022-08-15 2022-06-30 13F ABBOTT LABS COM 002824100 26,773 13,377 2,909 0.2301
2023-01-30 2022-03-31 13F/A-1 ABBOTT LABS COM 002824100 13,396 -596 -4.26 1,585 -19.50 0.1072
2022-05-04 2022-03-31 13F ABBOTT LABS COM 002824100 13,396 -596 1,585 0.1072
2023-01-30 2021-12-31 13F/A-1 ABBOTT LABS COM 002824100 13,992 444 3.28 1,969 23.06 0.1525
2022-02-11 2021-12-31 13F ABBOTT LABS COM 002824100 13,992 444 1,969 0.1525
2023-01-30 2021-09-30 13F/A-1 ABBOTT LABS COM 002824100 13,548 2,920 27.47 1,600 29.87 0.1563
2021-11-15 2021-09-30 13F ABBOTT LABS COM 002824100 13,548 2,920 1,600 0.1563
2023-01-30 2021-06-30 13F/A-1 ABBOTT LABS COM 002824100 10,628 8,663 440.87 1,232 422.03 0.1464
2021-08-13 2021-06-30 13F ABBOTT LABS COM 002824100 10,628 8,663 1,232 0.1464
2023-01-30 2021-03-31 13F/A-1 ABBOTT LABS COM 002824100 1,965 1,965 236 0.0367
2021-05-17 2021-03-31 13F ABBOTT LABS COM 002824100 1,965 1,965 236 0.0367
2019-11-13 2019-09-30 13F ABBOTT LABS COM 002824100 0 -2,385 -100.00 0 -100.00
2019-08-14 2019-06-30 13F ABBOTT LABS COM 002824100 2,385 2,385 201 0.0612
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.