AbbVie Inc.
BG ˙ BUL ˙ US00287Y1091
SecurityBG:4AB / AbbVie Inc.
InstitutionOsterweis Capital Management Inc
Latest Disclosed Ownership107,478 shares
Latest Disclosed Value $ 23,375,391
Osterweis Capital Management Inc reports 2,765.32% increase in ownership of 4AB / AbbVie Inc.

On May 15, 2026 - Osterweis Capital Management Inc filed a 13F-HR form disclosing ownership of 107,478 shares of AbbVie Inc. (BG:4AB) valued at $23,375,391 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,751 shares of AbbVie Inc.. This represents a change in shares of 2,765.32% 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)
2026-05-15 2026-03-31 13F ABBVIE COM 00287Y109 107,478 103,727 2,765.32 23,375 2,627.54 0.9146
2026-02-17 2025-12-31 13F ABBVIE COM 00287Y109 3,751 17 0.46 857 -0.81 0.0363
2025-11-14 2025-09-30 13F ABBVIE COM 00287Y109 3,734 -1,806 -32.60 865 -15.95 0.0390
2025-08-14 2025-06-30 13F ABBVIE COM 00287Y109 5,540 1,219 28.21 1,028 13.59 0.0492
2025-06-05 2025-03-31 13F/A-1 ABBVIE COM 00287Y109 4,321 15 0.35 905 18.30 0.0447
2025-05-14 2025-03-31 13F ABBVIE COM 00287Y109 4,321 15 9,053 0.0358
2025-06-05 2024-12-31 13F/A-1 ABBVIE COM 00287Y109 4,306 -20 -0.46 765 -10.42 0.0356
2025-02-13 2024-12-31 13F ABBVIE COM 00287Y109 4,306 -20 1 0.0356
2024-11-14 2024-09-30 13F ABBVIE COM 00287Y109 4,326 -75 -1.70 854 13.26 0.0433
2024-08-14 2024-06-30 13F ABBVIE COM 00287Y109 4,401 -470 -9.65 755 -14.99 0.0390
2024-05-15 2024-03-31 13F ABBVIE COM 00287Y109 4,871 -45 -0.92 887 16.56 0.0521
2024-02-14 2023-12-31 13F ABBVIE COM 00287Y109 4,916 0 0.00 762 3.96 0.0484
2023-11-14 2023-09-30 13F ABBVIE COM 00287Y109 4,916 -75 -1.50 733 8.93 0.0537
2023-08-14 2023-06-30 13F ABBVIE COM 00287Y109 4,991 -130 -2.54 672 -17.65 0.0445
2023-05-15 2023-03-31 13F ABBVIE COM 00287Y109 5,121 -255 -4.74 816 -5.99 0.0555
2023-02-14 2022-12-31 13F ABBVIE COM 00287Y109 5,376 0 0.00 869 20.22 0.0631
2022-11-14 2022-09-30 13F ABBVIE COM 00287Y109 5,376 0 0.00 722 -12.27 0.0542
2022-08-15 2022-06-30 13F ABBVIE COM 00287Y109 5,376 2,365 78.55 823 68.65 0.0616
2022-05-16 2022-03-31 13F ABBVIE COM 00287Y109 3,011 0 0.00 488 19.61 0.0268
2022-02-14 2021-12-31 13F ABBVIE COM 00287Y109 3,011 0 0.00 408 25.54 0.0204
2021-11-15 2021-09-30 13F ABBVIE COM 00287Y109 3,011 0 0.00 325 -4.13 0.0177
2021-08-16 2021-06-30 13F ABBVIE COM 00287Y109 3,011 0 0.00 339 3.99 0.0174
2021-05-14 2021-03-31 13F ABBVIE COM 00287Y109 3,011 -350 -10.41 326 -9.44 0.0178
2021-02-12 2020-12-31 13F ABBVIE COM 00287Y109 3,361 3,361 360 0.0215
2019-08-14 2019-06-30 13F ABBVIE COM 00287Y109 0 -2,715 -100.00 0 -100.00
2019-05-15 2019-03-31 13F ABBVIE COM 00287Y109 2,715 0 0.00 219 -12.75 0.0137
2019-02-13 2018-12-31 13F ABBVIE COM 00287Y109 2,715 0 0.00 251 -1.95 0.0193
2018-11-13 2018-09-30 13F ABBVIE COM 00287Y109 2,715 0 0.00 256 1.99 0.0163
2018-08-13 2018-06-30 13F ABBVIE COM 00287Y109 2,715 -955 -26.02 251 -27.87 0.0162
2018-05-14 2018-03-31 13F ABBVIE COM 00287Y109 3,670 0 0.00 348 -1.97 0.0248
2018-02-14 2017-12-31 13F ABBVIE COM 00287Y109 3,670 0 0.00 355 8.90 0.0252
2017-11-13 2017-09-30 13F ABBVIE COM 00287Y109 3,670 0 0.00 326 22.56 0.0244
2017-08-15 2017-06-30 13F ABBVIE COM 00287Y109 3,670 0 0.00 266 11.30 0.0203
2017-05-12 2017-03-31 13F ABBVIE COM 00287Y109 3,670 -1,000 -21.41 239 -18.15 0.0187
2017-02-13 2016-12-31 13F ABBVIE COM 00287Y109 4,670 0 0.00 292 -1.02 0.0210
2016-11-14 2016-09-30 13F ABBVIE COM 00287Y109 4,670 -45 -0.95 295 1.03 0.0178
2016-08-12 2016-06-30 13F ABBVIE COM 00287Y109 4,715 -75 -1.57 292 6.57 0.0186
2016-05-16 2016-03-31 13F ABBVIE COM 00287Y109 4,790 1,165 32.14 274 27.44 0.0159
2016-02-11 2015-12-31 13F ABBVIE COM 00287Y109 3,625 -1,305 -26.47 215 -19.78 0.0198
2015-11-13 2015-09-30 13F ABBVIE COM 00287Y109 4,930 -105 -2.09 268 -20.94 0.0121
2015-08-17 2015-06-30 13F ABBVIE COM 00287Y109 5,035 -50 -0.98 339 14.14 0.0118
2015-05-14 2015-03-31 13F ABBVIE COM 00287Y109 5,085 0 0.00 297 -10.81 0.0095
2015-02-13 2014-12-31 13F ABBVIE COM 00287Y109 5,085 -115 -2.21 333 11.00 0.0109
2014-11-13 2014-09-30 13F ABBVIE COM 00287Y109 5,200 1,000 23.81 300 26.58 0.0092
2014-08-14 2014-06-30 13F ABBVIE COM 00287Y109 4,200 -130 -3.00 237 6.28 0.0068
2014-05-15 2014-03-31 13F ABBVIE COM 00287Y109 4,330 0 0.00 223 -2.19 0.0068
2014-02-13 2013-12-31 13F ABBVIE COM 00287Y109 4,330 0 0.00 228 8.57 0.0071
2013-11-14 2013-09-30 13F ABBVIE COM 00287Y109 4,330 0 0.00 210 17.32 0.0068
2013-08-15 2013-06-30 13F ABBVIE COM 00287Y109 4,330 4,330 179 0.0067
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.