AbbVie Inc.
BG ˙ BUL ˙ US00287Y1091
SecurityBG:4AB / AbbVie Inc.
InstitutionS.A. Mason LLC
Latest Disclosed Ownership12,233 shares
Latest Disclosed Value $ 2,660,495
S.A. Mason LLC reports 1.59% increase in ownership of 4AB / AbbVie Inc.

On April 27, 2026 - S.A. Mason LLC filed a 13F-HR form disclosing ownership of 12,233 shares of AbbVie Inc. (BG:4AB) valued at $2,660,495 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 12,042 shares of AbbVie Inc.. This represents a change in shares of 1.59% 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.

Upgrade to unlock premium data and export to Excel .

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 AbbVie COM 00287Y109 12,233 191 1.59 2,660 -3.31 0.9987
2026-01-29 2025-12-31 13F AbbVie COM 00287Y109 12,042 -146 -1.20 2,752 -2.52 1.0879
2025-10-14 2025-09-30 13F AbbVie COM 00287Y109 12,188 -99 -0.81 2,822 23.77 1.2456
2025-07-14 2025-06-30 13F AbbVie COM 00287Y109 12,287 -2 -0.02 2,281 -11.42 1.1036
2025-04-23 2025-03-31 13F AbbVie COM 00287Y109 12,289 -456 -3.58 2,575 13.69 1.3603
2025-01-24 2024-12-31 13F AbbVie COM 00287Y109 12,745 104 0.82 2,265 -9.29 1.1896
2024-10-25 2024-09-30 13F AbbVie COM 00287Y109 12,641 18 0.14 2,496 15.29 1.3235
2024-07-10 2024-06-30 13F AbbVie COM 00287Y109 12,623 336 2.73 2,165 -3.22 1.2312
2024-04-15 2024-03-31 13F AbbVie COM 00287Y109 12,287 20 0.16 2,237 17.67 1.3450
2024-01-17 2023-12-31 13F AbbVie COM 00287Y109 12,267 -83 -0.67 1,901 3.32 1.2748
2023-10-13 2023-09-30 13F AbbVie COM 00287Y109 12,350 -548 -4.25 1,841 -10.46 1.3274
2023-07-20 2023-06-30 13F AbbVie COM 00287Y109 12,898 0 0.00 2,056 0.00 1.4928
2023-05-10 2023-03-31 13F AbbVie COM 00287Y109 12,898 214 1.69 2,056 0.29 1.4928
2023-01-10 2022-12-31 13F AbbVie COM 00287Y109 12,684 -36 -0.28 2,050 20.04 1.5437
2022-10-20 2022-09-30 13F AbbVie COM 00287Y109 12,720 -171 -1.33 1,707 -13.53 1.3502
2022-07-07 2022-06-30 13F AbbVie COM 00287Y109 12,891 45 0.35 1,974 -5.23 1.4419
2022-05-12 2022-03-31 13F AbbVie COM 00287Y109 12,846 556 4.52 2,083 25.18 1.2991
2022-01-04 2021-12-31 13F AbbVie COM 00287Y109 12,290 16 0.13 1,664 25.68 1.0015
2021-10-12 2021-09-30 13F AbbVie COM 00287Y109 12,274 738 6.40 1,324 1.92 0.8717
2021-07-07 2021-06-30 13F AbbVie COM 00287Y109 11,536 -2 -0.02 1,299 4.00 0.8935
2021-04-20 2021-03-31 13F AbbVie COM 00287Y109 11,538 -16 -0.14 1,249 0.89 0.9331
2021-02-02 2020-12-31 13F AbbVie COM 00287Y109 11,554 -92 -0.79 1,238 21.37 1.0307
2020-10-21 2020-09-30 13F AbbVie COM 00287Y109 11,646 8 0.07 1,020 -10.76 0.9703
2020-07-27 2020-06-30 13F AbbVie COM 00287Y109 11,638 8 0.07 1,143 29.01 1.2045
2020-05-14 2020-03-31 13F AbbVie COM 00287Y109 11,630 -66 -0.56 886 -14.48 1.0755
2020-01-29 2019-12-31 13F AbbVie COM 00287Y109 11,696 11,696 1,036 0.9872
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.