美國銀行公司
MX ˙ BMV ˙ US0605051046
SecurityMX:BAC / Bank of America Corporation
InstitutionCorundum Group, Inc.
Latest Disclosed Ownership24,638 shares
Latest Disclosed Value $ 1,201,102
Corundum Group, Inc. reports 15.28% increase in ownership of BAC / Bank of America Corporation

On April 20, 2026 - Corundum Group, Inc. filed a 13F-HR form disclosing ownership of 24,638 shares of Bank of America Corporation (MX:BAC) valued at $1,201,102 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 21,373 shares of Bank of America Corporation. This represents a change in shares of 15.28% 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)
2026-04-20 2026-03-31 13F BANK OF AMERICA CS 060505104 24,638 3,265 15.28 1,201 2.21 0.4014
2026-01-12 2025-12-31 13F BANK OF AMERICA CS 060505104 21,373 -2,870 -11.84 1,176 -6.00 0.3945
2025-10-24 2025-09-30 13F BANK OF AMERICA CS 060505104 24,243 -604 -2.43 1,251 6.38 0.5139
2025-07-21 2025-06-30 13F BANK OF AMERICA CS 060505104 24,847 407 1.67 1,176 15.31 0.5199
2025-04-23 2025-03-31 13F BANK OF AMERICA CS 060505104 24,440 -11,155 -31.34 1,020 -34.85 0.4891
2025-01-16 2024-12-31 13F BANK OF AMERICA CS 060505104 35,595 11,390 47.06 1,564 62.92 0.5842
2024-10-21 2024-09-30 13F BANK OF AMERICA CS 060505104 24,205 -12,506 -34.07 960 -34.20 0.4382
2024-07-17 2024-06-30 13F BANK OF AMERICA CS 060505104 36,711 11,695 46.75 1,460 53.90 0.5704
2024-04-15 2024-03-31 13F BANK OF AMERICA CS 060505104 25,016 11,349 83.04 949 106.09 0.4575
2024-01-24 2023-12-31 13F BANK OF AMERICA CS 060505104 13,667 -13,195 -49.12 460 -37.41 0.2307
2023-10-17 2023-09-30 13F BANK OF AMERICA CS 060505104 26,862 -2,062 -7.13 735 -11.34 0.4179
2023-07-21 2023-06-30 13F BANK OF AMERICA CS 060505104 28,924 -8,663 -23.05 830 -22.81 0.4139
2023-04-24 2023-03-31 13F BANK OF AMERICA CS 060505104 37,587 12,110 47.53 1,075 0.5085
2023-01-12 2022-12-31 13F BANK OF AMERICA CS 060505104 25,477 1,652 6.93 1 -100.00 0.4766
2022-10-18 2022-09-30 13F BANK OF AMERICA CS 060505104 23,825 1,167 5.15 720 2.13 0.4529
2022-07-25 2022-06-30 13F BANK OF AMERICA CS 060505104 22,658 3,262 16.82 705 -11.87 0.4763
2022-05-02 2022-03-31 13F BANK OF AMERICA CS 060505104 19,396 8,322 75.15 800 62.27 0.7435
2022-02-07 2021-12-31 13F BANK OF AMERICA CS 060505104 11,074 1,896 20.66 493 26.41 0.3210
2021-11-02 2021-09-30 13F BANK OF AMERICA CS 060505104 9,178 529 6.12 390 9.24 0.2891
2021-08-02 2021-06-30 13F BANK OF AMERICA CS 060505104 8,649 184 2.17 357 8.84 0.2341
2021-05-10 2021-03-31 13F BANK OF AMERICA CS 060505104 8,465 569 7.21 328 37.24 0.2563
2021-02-03 2020-12-31 13F BANK OF AMERICA CS 060505104 7,896 7,896 239 0.1991
2020-05-07 2020-03-31 13F/A-1 BANK OF AMERICA CS 060505104 0 -8,331 -100.00 0 -100.00
2020-01-28 2019-12-31 13F BANK OF AMERICA CS 060505104 8,331 365 4.58 293 26.29 0.3077
2019-11-01 2019-09-30 13F/A-1 BANK OF AMERICA CS 060505104 7,966 -8 -0.10 232 0.43 0.2687
2019-08-02 2019-06-30 13F BANK OF AMERICA CS 060505104 7,974 63 0.80 231 5.96 0.2654
2019-05-08 2019-03-31 13F BANK OF AMERICA CS 060505104 7,911 7,911 218 0.2494
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.