Ally Financial Inc.
MX ˙ BMV ˙ US02005N1000
SecurityMX:ALLY1 / Ally Financial Inc.
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership620,108 shares
Latest Disclosed Value $ 24,326,836
Marshall Wace, Llp reports 1,726.37% increase in ownership of ALLY1 / Ally Financial Inc.

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 620,108 shares of Ally Financial Inc. (MX:ALLY1) valued at $24,326,836 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 33,953 shares of Ally Financial Inc.. This represents a change in shares of 1,726.37% 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)
2026-05-14 2026-03-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 620,108 586,155 1,726.37 24,327 1,482.69 0.0115
2026-02-13 2025-12-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 33,953 -1,520 -4.28 1,538 10.58 0.0014
2025-11-13 2025-09-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 35,473 -1,290,880 -97.33 1,391 -97.31 0.0014
2025-08-13 2025-06-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 1,326,353 1,326,353 51,661 0.0582
2025-05-15 2025-03-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 0 -532,583 -100.00 0 -100.00
2025-02-13 2024-12-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 532,583 532,583 19,178 0.0231
2024-11-14 2024-09-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 0 -757,797 -100.00 0 -100.00
2024-08-14 2024-06-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 757,797 -613,066 -44.72 30,062 -45.98 0.0401
2024-05-15 2024-03-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 1,370,863 770,236 128.24 55,643 165.31 0.0847
2024-02-14 2023-12-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 600,627 514,827 600.03 20,974 816.25 0.0355
2023-11-14 2023-09-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 85,800 72,398 540.20 2,289 534.07 0.0046
2023-08-14 2023-06-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 13,402 -224,617 -94.37 362 -94.05 0.0007
2023-05-15 2023-03-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 238,019 238,019 6,067 0.0129
2022-11-14 2022-09-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 0 -1,256,983 -100.00 0 -100.00
2022-08-15 2022-06-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 1,256,983 -764,681 -37.82 42,121 -52.08 0.0867
2022-05-16 2022-03-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 2,021,664 83,173 4.29 87,902 -4.76 0.1665
2022-02-14 2021-12-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 1,938,491 1,865,701 2,563.13 92,291 2,383.61 0.1704
2021-11-15 2021-09-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 72,790 72,790 3,716 0.0154
2021-08-13 2021-06-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 0 -103,089 -100.00 0 -100.00
2021-05-17 2021-03-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 103,089 -186,119 -64.35 4,660 -54.81 0.0214
2021-02-16 2020-12-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 289,208 40,028 16.06 10,313 65.11 0.0559
2020-11-16 2020-09-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 249,180 72,960 41.40 6,246 78.76 0.0400
2020-08-13 2020-06-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 176,220 175,192 17,042.02 3,494 23,193.33 0.0245
2020-05-15 2020-03-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 1,028 1,028 -99.42 15 -99.57 0.0001
2020-02-14 2019-12-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 0 -321,208 -100.00 0 -100.00
2019-11-14 2019-09-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 321,208 67,172 26.44 10,651 35.29 0.0837
2019-08-14 2019-06-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 254,036 100,422 65.37 7,873 86.43 0.0648
2019-05-29 2019-03-31 13F/A-1 ALLY FINANCIAL I COMMON STOCK 02005N100 153,614 153,614 -39.53 4,223 -46.36 0.0397
2019-05-14 2019-03-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 153,614 153,614 4,223
2018-11-14 2018-09-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 0 -165,155 -100.00 0 -100.00
2018-08-14 2018-06-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 165,155 165,155 4,339 0.0649
2018-05-15 2018-03-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 0 -8,843 -100.00 0 -100.00
2018-03-29 2017-12-31 13F/A-1 ALLY FINANCIAL I COMMON STOCK 02005N100 8,843 8,843 258 0.0108
2018-02-14 2017-12-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 8,843 8,843 258
2017-05-12 2017-03-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 0 -100,364 -100.00 0 -100.00
2017-02-10 2016-12-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 100,364 100,364 1,909 0.0126
2016-11-10 2016-09-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 0 -1,552,252 -100.00 0 -100.00
2016-08-12 2016-06-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 1,552,252 1,552,252 0.00 26,497 0.2228
2016-02-10 2015-12-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 0 0 0 0.0000
2015-11-12 2015-09-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 0 -48,397 -100.00 0 -100.00
2015-08-14 2015-06-30 13F ALLY FINANCIAL I COMMON STOCK 02005N100 48,397 -24,023 -33.17 1,086 -28.51 0.0142
2015-05-11 2015-03-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 72,420 -443,097 -85.95 1,519 -87.53 0.0198
2015-02-17 2014-12-31 13F ALLY FINANCIAL I COMMON STOCK 02005N100 515,517 515,517 12,177 0.1608
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.