AbbVie Inc.
BG ˙ BUL ˙ US00287Y1091
SecurityBG:4AB / AbbVie Inc.
InstitutionO'Brien Greene & Co. Inc
Latest Disclosed Ownership8,553 shares
Latest Disclosed Value $ 1,860,192
O'Brien Greene & Co. Inc reports 1.78% decrease in ownership of 4AB / AbbVie Inc.

On May 6, 2026 - O'Brien Greene & Co. Inc filed a 13F-HR form disclosing ownership of 8,553 shares of AbbVie Inc. (BG:4AB) valued at $1,860,192 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 8,708 shares of AbbVie Inc.. This represents a change in shares of -1.78% 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)
2026-05-06 2026-03-31 13F Abbvie Inc Com COM 00287Y109 8,553 -155 -1.78 1,860 -6.49 0.2968
2026-02-05 2025-12-31 13F Abbvie Inc Com COM 00287Y109 8,708 -150 -1.69 1,990 -2.98 0.5907
2025-11-10 2025-09-30 13F Abbvie Inc Com COM 00287Y109 8,858 -1,916 -17.78 2,051 2.55 0.6307
2025-08-06 2025-06-30 13F Abbvie Inc Com COM 00287Y109 10,774 -1 -0.01 2,000 -11.43 0.6541
2025-05-12 2025-03-31 13F Abbvie Inc Com COM 00287Y109 10,775 -189 -1.72 2,258 15.86 0.7573
2025-02-03 2024-12-31 13F Abbvie Inc Com COM 00287Y109 10,964 99 0.91 1,948 -9.18 0.6326
2024-11-15 2024-09-30 13F Abbvie Inc Com COM 00287Y109 10,865 -1,396 -11.39 2,146 2.00 0.6681
2024-08-12 2024-06-30 13F Abbvie Inc Com COM 00287Y109 12,261 -7,337 -37.44 2,103 -41.06 0.6660
2024-05-02 2024-03-31 13F Abbvie Inc Com COM 00287Y109 19,598 -25 -0.13 3,569 17.37 1.1734
2024-02-02 2023-12-31 13F Abbvie Inc Com COM 00287Y109 19,623 -45 -0.23 3,041 3.72 1.0693
2023-11-08 2023-09-30 13F ABBVIE INC COM COM 00287Y109 19,668 -147 -0.74 2,932 146,450.00 1.0724
2023-08-15 2023-06-30 13F/A-1 ABBVIE INC COM COM 00287Y109 19,815 106 0.54 3 -33.33 0.9278
2023-07-20 2023-06-30 13F ABBVIE INC COM COM 00287Y109 57,645 37,936 8 0.9058
2023-05-03 2023-03-31 13F ABBVIE INC COM COM 00287Y109 19,709 -25 -0.13 3 0.00 1.1766
2023-02-02 2022-12-31 13F ABBVIE INC COM COM 00287Y109 19,734 -40,956 -67.48 3 -99.96 1.2094
2022-11-09 2022-09-30 13F ABBVIE COM 00287Y109 60,690 40,464 200.06 8,145 162.91 1.0793
2022-08-11 2022-06-30 13F ABBVIE COM 00287Y109 20,226 0 0.00 3,098 -5.52 1.1699
2022-05-18 2022-03-31 13F ABBVIE COM 00287Y109 20,226 -57 -0.28 3,279 19.41 1.0825
2022-02-08 2021-12-31 13F ABBVIE COM 00287Y109 20,283 167 0.83 2,746 26.54 0.9020
2021-11-12 2021-09-30 13F ABBVIE COM 00287Y109 20,116 75 0.37 2,170 -3.85 0.7915
2021-08-09 2021-06-30 13F ABBVIE COM 00287Y109 20,041 175 0.88 2,257 4.98 0.8057
2021-05-12 2021-03-31 13F ABBVIE COM 00287Y109 19,866 0 0.00 2,150 0.99 0.8519
2021-02-04 2020-12-31 13F ABBVIE COM 00287Y109 19,866 5,953 42.79 2,129 74.65 0.8758
2020-11-09 2020-09-30 13F ABBVIE COM 00287Y109 13,913 -178 -1.26 1,219 -11.86 0.5795
2020-08-10 2020-06-30 13F ABBVIE COM 00287Y109 14,091 -30 -0.21 1,383 28.53 0.7320
2020-05-07 2020-03-31 13F ABBVIE COM 00287Y109 14,121 -165 -1.15 1,076 -14.94 0.7162
2020-02-05 2019-12-31 13F ABBVIE COM 00287Y109 14,286 -2,350 -14.13 1,265 0.40 0.6424
2019-11-07 2019-09-30 13F ABBVIE COM 00287Y109 16,636 -50 -0.30 1,260 3.87 0.6762
2019-08-21 2019-06-30 13F ABBVIE COM 00287Y109 16,686 -397 -2.32 1,213 -11.91 0.6358
2019-04-29 2019-03-31 13F ABBVIE COM 00287Y109 17,083 2,025 13.45 1,377 -0.79 0.6949
2019-02-27 2018-12-31 13F ABBVIE COM 00287Y109 15,058 15,058 1,388 0.8270
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.