American International Group, Inc.
MX ˙ BMV ˙ US0268747849
SecurityMX:AIG / American International Group, Inc.
InstitutionInterval Partners, LP
Latest Disclosed Ownership224,938 shares
Latest Disclosed Value $ 16,926,585
Interval Partners, LP ownership in AIG / American International Group, Inc.

On May 15, 2026 - Interval Partners, LP filed a 13F-HR form disclosing ownership of 224,938 shares of American International Group, Inc. (MX:AIG) valued at $16,926,585 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 102,938 shares of American International Group, Inc.. This represents a change in shares of 118.52% during the quarter.

Interval Partners, LP 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.

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Institutional Put/Call Ratios
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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 224,938 122,000 118.52 16,927 92.21 0.4434
2026-02-17 2025-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 102,938 38,576 59.94 8,806 74.24 0.1576
2025-11-14 2025-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 64,362 10,557 19.62 5,055 9.75 0.0825
2025-08-14 2025-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 53,805 53,805 4,605 0.0781
2023-08-14 2023-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 0 -64,087 -100.00 0 -100.00
2023-05-15 2023-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 64,087 64,087 3,227 0.1280
2023-02-14 2022-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 0 -120,882 -100.00 0 -100.00
2022-11-14 2022-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 120,882 120,882 5,739 0.2533
2021-05-17 2021-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 0 -20,000 -100.00 0 -100.00
2021-02-25 2020-12-31 13F/A-1 AMERICAN INTL GROUP COM NEW 026874784 20,000 -79,398 -79.88 757 -72.33 0.0318
2021-02-16 2020-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 21,100 -78,298 1,132 47,492.1462
2020-11-16 2020-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 99,398 99,398 2,736 0.1538
2020-08-14 2020-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 0 -67,464 -100.00 0 -100.00
2020-05-15 2020-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 67,464 67,464 1,636 0.1257
2019-11-14 2019-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 0 -30,000 -100.00 0 -100.00
2019-08-12 2019-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 30,000 -356,637 -92.24 1,598 -90.40 0.0633
2019-05-15 2019-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 386,637 295,167 322.69 16,649 361.83 0.6373
2019-02-14 2018-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 91,470 -106,244 -53.74 3,605 -65.75 0.1937
2018-11-14 2018-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 197,714 -3,959 -1.96 10,526 -1.56 0.4297
2018-08-14 2018-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 201,673 -155,851 -43.59 10,693 -45.04 0.3972
2018-05-15 2018-03-31 13F AMERICAN INTL GROUP COM NEW 026874784 357,524 185,911 108.33 19,456 90.28 0.8776
2018-02-14 2017-12-31 13F AMERICAN INTL GROUP COM NEW 026874784 171,613 113,627 195.96 10,225 187.22 0.4261
2017-11-14 2017-09-30 13F AMERICAN INTL GROUP COM NEW 026874784 57,986 -24,764 -29.93 3,560 -31.19 0.1622
2017-08-14 2017-06-30 13F AMERICAN INTERNATIONAL GROUP COM 026874784 82,750 82,750 5,174 0.2260
2017-02-14 2016-12-31 13F AMERICAN INTERNATIONAL GROUP COM 026874784 0 -60,674 -100.00 0 -100.00
2016-11-14 2016-09-30 13F AMERICAN INTERNATIONAL GROUP COM 026874784 60,674 25,674 73.35 3,600 94.49 0.2284
2016-08-15 2016-06-30 13F AMERICAN INTL GROUP COM NEW 026874784 35,000 15,000 75.00 1,851 71.23 0.1250
2016-05-16 2016-03-31 13F AMERICAN INTERNATIONAL GROUP COM 026874784 20,000 20,000 1,081 0.0933
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
(%)
2025-08-14 2025-06-30 13F AMERICAN INTL GROUP COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F AMERICAN INTL GROUP COM NEW Call 53,200 4,625 n/a n/a n/a
2022-02-14 2021-12-31 13F AMERICAN INTL GROUP COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-15 2021-09-30 13F AMERICAN INTL GROUP COM NEW Call 25,000 1,372 n/a n/a n/a
2021-05-17 2021-03-31 13F AMERICAN INTL GROUP COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-25 2020-12-31 13F/A AMERICAN INTL GROUP COM NEW Call 80,000 3,029 n/a n/a n/a
2021-02-16 2020-12-31 13F AMERICAN INTL GROUP COM NEW Call 45,000 5,441 n/a n/a n/a
2019-05-15 2019-03-31 13F AMERICAN INTL GROUP COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-14 2018-12-31 13F AMERICAN INTL GROUP COM NEW Call 68,900 2,715 n/a n/a n/a
2018-08-14 2018-06-30 13F AMERICAN INTL GROUP COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-15 2018-03-31 13F AMERICAN INTL GROUP COM NEW Call 150,000 -25.00 8,163 -31.50 n/a n/a n/a
2018-02-14 2017-12-31 13F AMERICAN INTL GROUP COM NEW Call 200,000 11,916 n/a n/a n/a
2017-02-14 2016-12-31 13F AMERICAN INTERNATIONAL GROUP COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-11-14 2016-09-30 13F AMERICAN INTERNATIONAL GROUP COM Call 30,000 1,780 n/a n/a n/a
2016-02-16 2015-12-31 13F AMERICAN INTL GROUP INV COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-11-13 2015-09-30 13F AMERICAN INTL GROUP INV COM NEW Call 10,000 568 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
(%)
2023-11-14 2023-09-30 13F AMERICAN INTL GROUP COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-14 2023-06-30 13F AMERICAN INTL GROUP COM NEW Put 60,000 3,452 n/a n/a n/a
2022-11-14 2022-09-30 13F AMERICAN INTL GROUP COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-15 2022-06-30 13F AMERICAN INTL GROUP COM NEW Put 75,000 18.30 3,835 -3.64 n/a n/a n/a
2022-05-16 2022-03-31 13F AMERICAN INTL GROUP COM NEW Put 63,400 3,980 n/a n/a n/a
2018-08-14 2018-06-30 13F AMERICAN INTL GROUP COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-15 2018-03-31 13F AMERICAN INTL GROUP COM NEW Put 80,000 4,354 n/a n/a n/a
2018-02-14 2017-12-31 13F AMERICAN INTL GROUP COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-14 2017-09-30 13F AMERICAN INTL GROUP COM NEW Put 30,000 1,842 n/a n/a n/a
2015-02-17 2014-12-31 13F AMERICAN INTL GROUP COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2014-11-14 2014-09-30 13F AMERICAN INTL GROUP COM NEW Put 7,000 378 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.