American International Group, Inc.
US ˙ NYSE ˙ US0268747849

SecurityAIG / American International Group, Inc.
InstitutionFirst Manhattan Co
Latest Disclosed Ownership18,308 shares
Latest Disclosed Value $ 1,377,693
First Manhattan Co reports 33.06% decrease in ownership of AIG / American International Group, Inc.

On May 15, 2026 - First Manhattan Co filed a 13F-HR form disclosing ownership of 18,308 shares of American International Group, Inc. (US:AIG) valued at $1,377,677 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 27,351 shares of American International Group, Inc.. This represents a change in shares of -33.06% during the quarter. The current value of the position is $1,328,245 USD.

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 AMERICAN INTL GROUP COM NEW 026874784 18,308 -9,043 -33.06 1,378 -41.13 0.0038
2026-02-17 2025-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 27,351 -8,550 -23.82 2,340 -17.03 0.0061
2025-11-14 2025-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 35,901 -4,035 -10.10 2,820 -17.52 0.0074
2025-08-14 2025-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 39,936 -2,440 -5.76 3,418 -7.22 0.0097
2025-05-15 2025-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 42,376 -2,572 -5.72 3,684 12.59 0.0107
2025-02-14 2024-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 44,948 -3,150 -6.55 3,272 -7.10 0.0096
2024-11-14 2024-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 48,098 -6,673 -12.18 3,522 -13.38 0.0104
2024-08-15 2024-06-30 13F/A-1 AMERICAN INTL GROUP COM NEW 026874784 54,771 -3,667 -6.28 4,066 -10.99 0.0130
2024-08-14 2024-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 54,771 -3,667 4,066 0.0130
2024-05-15 2024-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 58,438 -2,319 -3.82 4,569 10.95 0.0148
2024-02-13 2023-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 60,757 -1,128 -1.82 4,118 9.79 0.0143
2023-11-14 2023-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 61,885 -4,345 -6.56 3,750 -1.57 0.0138
2023-08-14 2023-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 66,230 -4,354 -6.17 3,811 7.20 0.0140
2023-05-15 2023-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 70,584 -1,340 -1.86 3,555 -21.86 0.0136
2023-02-14 2022-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 71,924 -2,171 -2.93 4,549 29.28 0.0167
2022-11-14 2022-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 74,095 -5,623 -7.05 3,518 -13.69 0.0149
2022-08-15 2022-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 79,718 -2,130 -2.60 4,076 -20.65 0.0164
2022-05-16 2022-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 81,848 7,273 9.75 5,137 21.16 0.0168
2022-02-14 2021-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 74,575 18 0.02 4,240 3.62 0.0140
2021-11-15 2021-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 74,557 -882 -1.17 4,092 13.98 0.0151
2021-08-16 2021-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 75,439 -1,433 -1.86 3,590 1.07 0.0131
2021-05-14 2021-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 76,872 -1,804 -2.29 3,552 19.27 0.0153
2021-02-16 2020-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 78,676 -1,025 -1.29 2,978 35.73 0.0143
2020-11-12 2020-09-30 13F AMERN INTL GROUP COMMON 026874784 79,701 -11,623 -12.73 2,194 -22.94 0.0113
2020-08-14 2020-06-30 13F AMERN INTL GROUP COMMON 026874784 91,324 -19,272 -17.43 2,847 6.19 0.0165
2020-05-06 2020-03-31 13F AMERN INTL GROUP COMMON 026874784 110,596 -288,422 -72.28 2,681 -86.91 0.0174
2020-02-13 2019-12-31 13F AMERN INTL GROUP COMMON 026874784 399,018 -107,283 -21.19 20,481 -27.37 0.1028
2019-11-13 2019-09-30 13F AMERN INTL GROUP COMMON 026874784 506,301 -21,084 -4.00 28,200 0.36 0.1554
2019-08-16 2019-06-30 13F AMERN INTL GROUP COMMON 026874784 527,385 -29,089 -5.23 28,099 17.27 0.1560
2019-04-12 2019-03-31 13F AMERN INTL GROUP COMMON 026874784 556,474 -120,376 -17.78 23,961 -10.17 0.1383
2019-01-30 2018-12-31 13F AMERN INTL GROUP COMMON 026874784 676,850 -205,001 -23.25 26,674 -43.19 0.1660
2018-10-15 2018-09-30 13F AMERN INTL GROUP COMMON 026874784 881,851 -109,269 -11.02 46,949 -10.66 0.2502
2018-08-01 2018-06-30 13F AMERN INTL GROUP COMMON 026874784 991,120 -189,123 -16.02 52,549 -18.18 0.3030
2018-04-20 2018-03-31 13F AMERN INTL GROUP COMMON 026874784 1,180,243 -63,148 -5.08 64,228 -13.30 0.3654
2018-01-22 2017-12-31 13F AMERN INTL GROUP COMMON 026874784 1,243,391 -57,048 -4.39 74,081 -7.21 0.4059
2017-10-25 2017-09-30 13F AMERN INTL GROUP COMMON 026874784 1,300,439 -366,369 -21.98 79,833 -23.39 0.4572
2017-08-10 2017-06-30 13F/A-2 AMERN INTL GROUP COMMON 026874784 1,666,808 -226,380 -11.96 104,208 -11.83 0.6076
2017-08-01 2017-06-30 13F/A-1 AMERN INTL GROUP COMMON 026874784 1,669,268 2,460 104,362 0.6086
2017-04-25 2017-03-31 13F/A-1 AMERN INTL GROUP COMMON 026874784 1,893,188 -221,953 -10.49 118,191 -14.44 0.7021
2017-04-24 2017-03-31 13F AMERN INTL GROUP COMMON 026874784 2,381,000 141,288
2017-01-25 2016-12-31 13F AMERN INTL GROUP COMMON 026874784 2,115,141 -265,859 -11.17 138,139 -2.23 0.8400
2016-10-20 2016-09-30 13F AMERN INTL GROUP COMMON 026874784 2,381,000 -147,755 -5.84 141,288 5.64 0.8618
2016-07-14 2016-06-30 13F AMERN INTL GROUP COMMON 026874784 2,528,755 -68,318 -2.63 133,745 -4.72 0.8215
2016-04-22 2016-03-31 13F AMERN INTL GROUP COMMON 026874784 2,597,073 -1,903,447 -42.29 140,371 -49.67 0.8636
2016-01-20 2015-12-31 13F AMERN INTL GROUP COMMON 026874784 4,500,520 -632,302 -12.32 278,897 -4.37 1.7116
2015-10-26 2015-09-30 13F AMERN INTL GROUP COMMON 026874784 5,132,822 167,572 3.37 291,647 -4.99 1.8748
2015-07-17 2015-06-30 13F AMERN INTL GROUP COMMON 026874784 4,965,250 -96,502 -1.91 306,951 10.68 1.8124
2015-04-30 2015-03-31 13F AMERN INTL GROUP COMMON 026874784 5,061,752 -76,639 -1.49 277,333 -3.64 1.5976
2015-01-20 2014-12-31 13F AMERN INTL GROUP COMMON 026874784 5,138,391 -36,047 -0.70 287,801 2.96 1.6294
2014-10-23 2014-09-30 13F AMERN INTL GROUP COMMON 026874784 5,174,438 783,421 17.84 279,523 16.63 1.6256
2014-08-14 2014-06-30 13F/A-1 AMERN INTL GROUP COMMON 026874784 4,391,017 200,268 4.78 239,661 14.35 1.5188
2014-05-16 2014-03-31 13F AMERN INTL GROUP COMMON 026874784 4,190,749 -242,942 -5.48 209,579 -7.40 1.3806
2014-02-04 2013-12-31 13F AMERN INTL GROUP COMMON 026874784 4,433,691 -62,949 -1.40 226,339 3.51 1.4960
2013-10-29 2013-09-30 13F AMERN INTL GROUP COMMON 026874784 4,496,640 -19,548 -0.43 218,671 4.65 1.5270
2013-08-13 2013-06-30 13F AMERN INTL GROUP COMMON 026874784 4,516,188 4,516,188 208,964 1.4375
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.