American International Group, Inc.
MX ˙ BMV ˙ US0268747849
SecurityMX:AIG / American International Group, Inc.
InstitutionBrown Advisory Inc
Latest Disclosed Ownership1,288,568 shares
Latest Disclosed Value $ 96,964,653
Brown Advisory Inc reports 9.92% decrease in ownership of AIG / American International Group, Inc.

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 1,288,568 shares of American International Group, Inc. (MX:AIG) valued at $96,964,653 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,430,478 shares of American International Group, Inc.. This represents a change in shares of -9.92% 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)
2026-05-15 2026-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 1,288,568 -141,910 -9.92 96,965 -20.77 0.0710
2026-02-13 2025-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 1,430,478 -192,378 -11.85 122,377 -3.99 0.1707
2025-11-14 2025-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 1,622,856 37,135 2.34 127,459 -6.09 0.1659
2025-08-13 2025-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 1,585,721 -277,557 -14.90 135,722 -16.22 0.1787
2025-04-30 2025-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 1,863,278 25,708 1.40 161,993 21.09 0.2315
2025-02-14 2024-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 1,837,570 -138,192 -6.99 133,775 -7.54 0.1697
2024-11-13 2024-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 1,975,762 47,471 2.46 144,685 1.07 0.1817
2024-08-14 2024-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 1,928,291 90,947 4.95 143,156 -0.33 0.1871
2024-04-24 2024-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 1,837,344 1,660,652 939.86 143,625 1,099.87 0.1920
2024-02-08 2023-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 176,692 92,473 109.80 11,971 134.57 0.0168
2023-10-25 2023-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 84,219 7,409 9.65 5,104 15.48 0.0084
2023-07-31 2023-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 76,810 686 0.90 4,420 15.29 0.0069
2023-05-08 2023-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 76,124 530 0.70 3,834 -19.81 0.0065
2023-02-13 2022-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 75,594 89 0.12 4,781 33.33 0.0089
2022-11-14 2022-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 75,505 551 0.74 3,585 -6.45 0.0070
2022-11-14 2022-06-30 13F/A-2 AMERICAN INTL GROUP COM NEW 026874784 74,954 1,861 2.55 3,832 -16.48 0.0072
2022-09-13 2022-06-30 13F/A-1 AMERICAN INTL GROUP COM NEW 026874784 79,745 1,832 4,077 0.0071
2022-08-02 2022-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 74,954 1,861 3,832 0.0062
2022-11-14 2022-03-31 13F/A-2 AMERICAN INTL GROUP COM NEW 026874784 73,093 -161 -0.22 4,588 10.16 0.0068
2022-09-13 2022-03-31 13F/A-1 AMERICAN INTL GROUP COM NEW 026874784 77,913 4,659 4,891 0.0069
2022-05-09 2022-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 73,093 -161 4,588 0.0062
2022-01-27 2021-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 73,254 1,911 2.68 4,165 6.36 0.0052
2021-11-12 2021-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 71,343 -136 -0.19 3,916 15.11 0.0058
2021-07-29 2021-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 71,479 -260 -0.36 3,402 2.62 0.0051
2021-05-14 2021-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 71,739 1,591 2.27 3,315 24.81 0.0057
2021-02-12 2020-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 70,148 -47 -0.07 2,656 37.47 0.0047
2020-11-16 2020-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 70,195 -12,911 -15.54 1,932 -25.43 0.0040
2020-08-14 2020-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 83,106 6,870 9.01 2,591 40.13 0.0060
2020-05-15 2020-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 76,236 -64,510 -45.83 1,849 -50.23 0.0057
2020-02-14 2019-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 140,746 69,690 98.08 3,715 -6.12 0.0094
2019-11-14 2019-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 71,056 -504 -0.70 3,957 3.78 0.0111
2019-08-12 2019-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 71,560 -83,383 -53.82 3,813 -42.85 0.0109
2019-05-15 2019-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 154,943 83,858 117.97 6,672 138.20 0.0189
2019-02-13 2018-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 71,085 -114,810 -61.76 2,801 -71.70 0.0094
2018-11-13 2018-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 185,895 30,677 19.76 9,898 20.27 0.0282
2018-08-10 2018-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 155,218 43,425 38.84 8,230 35.30 0.0253
2018-06-28 2018-03-31 13F/A-1 AMERICAN INTL GROUP COM NEW 026874784 111,793 -2,888 -2.52 6,083 -10.96 0.0197
2018-05-14 2018-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 111,042 -3,639 6,042
2018-02-12 2017-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 114,681 8,911 8.42 6,832 5.22 0.0216
2017-11-13 2017-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 105,770 29,134 38.02 6,493 35.52 0.0215
2017-08-14 2017-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 76,636 -4,587 -5.65 4,791 -5.52 0.0146
2017-05-15 2017-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 81,223 -2,826 -3.36 5,071 -7.60 0.0173
2017-02-13 2016-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 84,049 -2,654 -3.06 5,488 6.67 0.0196
2016-11-14 2016-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 86,703 -17,467 -16.77 5,145 -6.61 0.0177
2016-08-09 2016-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 104,170 8,347 8.71 5,509 6.35 0.0194
2016-05-13 2016-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 95,823 37,929 65.51 5,180 44.37 0.0179
2016-02-08 2015-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 57,894 -14,848 -20.41 3,588 -13.19 0.0122
2015-11-13 2015-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 72,742 29,077 66.59 4,133 53.07 0.0148
2015-08-11 2015-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 43,665 -1,216 -2.71 2,700 9.76 0.0088
2015-05-14 2015-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 44,881 1,720 3.99 2,460 1.78 0.0078
2015-02-13 2014-12-31 13F/A-1 AMERICAN INTL GROUP COM NEW 026874784 43,161 -8,093 -15.79 2,417 -12.71 0.0076
2015-02-09 2014-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 52,411 2,911
2014-11-10 2014-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 51,254 494 0.97 2,769 -0.07 0.0089
2014-08-08 2014-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 50,760 1,119 2.25 2,771 11.60 0.0087
2014-05-13 2014-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 49,641 4,124 9.06 2,483 6.84 0.0079
2014-02-11 2013-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 45,517 1,738 3.97 2,324 9.16 0.0075
2013-11-08 2013-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 43,779 19,672 81.60 2,129 97.50 0.0076
2013-08-13 2013-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 24,107 24,107 1,078 0.0043
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.