American International Group, Inc.
MX ˙ BMV ˙ US0268747849
SecurityMX:AIG / American International Group, Inc.
InstitutionLMR Partners LLP
Latest Disclosed Ownership4,450 shares
Latest Disclosed Value $ 334,863
LMR Partners LLP ownership in AIG / American International Group, Inc.

On May 15, 2026 - LMR Partners LLP filed a 13F-HR form disclosing ownership of 4,450 shares of American International Group, Inc. (MX:AIG) valued at $334,863 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of American International Group, Inc..

LMR Partners LLP has a history of taking positions in derivatives of the underlying security (AIG) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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 .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:AIG / American International Group, Inc. Historical Put/Call Ratio
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 4,450 4,450 335 0.0006
2026-02-17 2025-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 0 -530 -100.00 0 -100.00
2025-11-14 2025-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 530 529 52,900.00 42 0.0002
2025-08-14 2025-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 1 -73,724 -100.00 0 -100.00 0.0000
2025-05-15 2025-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 73,725 -48,926 -39.89 6,410 -28.21 0.0600
2025-02-14 2024-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 122,651 -133,185 -52.06 8,929 -52.34 0.0751
2024-11-07 2024-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 255,836 30,599 13.59 18,735 12.04 0.1492
2024-08-14 2024-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 225,237 144,263 178.16 16,722 164.20 0.1412
2024-05-15 2024-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 80,974 80,974 6,330 0.0644
2023-08-14 2023-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 0 -5,496 -100.00 0 -100.00
2023-05-15 2023-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 5,496 5,496 277 0.0043
2021-08-16 2021-06-30 13F AMERICAN INTERNATIONAL GROUP I COM NEW 026874784 0 -7,438 -100.00 0 -100.00
2021-05-17 2021-03-31 13F AMERICAN INTERNATIONAL GROUP I COM NEW 026874784 7,438 7,438 344 0.0086
2020-02-14 2019-12-31 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 0 -4,487 -100.00 0 -100.00
2019-11-14 2019-09-30 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 4,487 4,487 250 0.0124
2019-08-14 2019-06-30 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 0 -7,491 -100.00 0 -100.00
2019-05-15 2019-03-31 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 7,491 7,491 323 0.0165
2019-02-14 2018-12-31 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 0 -16,806 -100.00 0 -100.00
2018-11-14 2018-09-30 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 16,806 16,806 895 0.0569
2017-11-09 2017-09-30 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 0 -40,509 -100.00 0 -100.00
2017-08-03 2017-06-30 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 40,509 -54,588 -57.40 2,532 -57.35 0.1589
2017-05-11 2017-03-31 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 95,097 76,340 406.99 5,937 384.65 0.5705
2017-02-07 2016-12-31 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 18,757 -252,553 -93.09 1,225 -92.39 0.1881
2016-11-04 2016-09-30 13F/A-1 AMERICAN INTERNATIONAL GROUP I COM 026874784 271,310 271,310 0.00 16,100 1.5285
2016-11-01 2016-09-30 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 271,310 16,100
2016-11-04 2016-06-30 13F/A-1 AMERICAN INTERNATIONAL GROUP I COM 026874784 0 -38,691 -100.00 0 -100.00
2016-05-04 2016-03-31 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 38,691 33,318 620.10 2,091 527.93 0.2285
2016-02-03 2015-12-31 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 5,373 -56,107 -91.26 333 -90.47 0.1084
2015-11-05 2015-09-30 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 61,480 61,480 0.00 3,493 0.3819
2015-01-20 2014-12-31 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 0 -7,944 -100.00 0 -100.00
2014-10-20 2014-09-30 13F AMERICAN INTERNATIONAL GROUP I COM 026874784 7,944 7,944 429 0.0342
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F AMERICAN INTL GROUP COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F AMERICAN INTL GROUP COM NEW Call 228,300 706.71 19,531 778.98 n/a n/a n/a
2025-11-14 2025-09-30 13F AMERICAN INTL GROUP COM NEW Call 28,300 -40.04 2,223 -44.99 n/a n/a n/a
2025-08-14 2025-06-30 13F AMERICAN INTL GROUP COM NEW Call 47,200 4,040 n/a n/a n/a
2025-02-14 2024-12-31 13F AMERICAN INTL GROUP COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-07 2024-09-30 13F AMERICAN INTL GROUP COM NEW Call 38,100 0.00 2,790 -1.34 n/a n/a n/a
2024-08-14 2024-06-30 13F AMERICAN INTL GROUP COM NEW Call 38,100 -88.73 2,829 -89.30 n/a n/a n/a
2024-05-15 2024-03-31 13F AMERICAN INTL GROUP COM NEW Call 338,100 26,429 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F AMERICAN INTL GROUP COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F AMERICAN INTL GROUP COM NEW Put 9,800 0.00 838 8.97 n/a n/a n/a
2025-11-14 2025-09-30 13F AMERICAN INTL GROUP COM NEW Put 9,800 -76.44 770 -78.40 n/a n/a n/a
2025-08-14 2025-06-30 13F AMERICAN INTL GROUP COM NEW Put 41,600 3,561 n/a n/a n/a
2025-05-15 2025-03-31 13F AMERICAN INTL GROUP COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F AMERICAN INTL GROUP COM NEW Put 31,100 -31.19 2,264 -31.58 n/a n/a n/a
2024-11-07 2024-09-30 13F AMERICAN INTL GROUP COM NEW Put 45,200 0.00 3,310 -1.37 n/a n/a n/a
2024-08-14 2024-06-30 13F AMERICAN INTL GROUP COM NEW Put 45,200 0.00 3,356 -5.04 n/a n/a n/a
2024-05-15 2024-03-31 13F AMERICAN INTL GROUP COM NEW Put 45,200 3,533 n/a n/a n/a
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.