Cisco Systems, Inc.
MX ˙ BMV ˙ US17275R1023
SecurityMX:CSCO / Cisco Systems, Inc.
InstitutionCorundum Group, Inc.
Latest Disclosed Ownership20,198 shares
Latest Disclosed Value $ 1,567,163
Corundum Group, Inc. reports 9.65% increase in ownership of CSCO / Cisco Systems, Inc.

On April 20, 2026 - Corundum Group, Inc. filed a 13F-HR form disclosing ownership of 20,198 shares of Cisco Systems, Inc. (MX:CSCO) valued at $1,567,163 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 18,420 shares of Cisco Systems, Inc.. This represents a change in shares of 9.65% 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)
2026-04-20 2026-03-31 13F CISCO SYSTEMS CS 17275R102 20,198 1,778 9.65 1,567 10.51 0.5238
2026-01-12 2025-12-31 13F CISCO SYSTEMS CS 17275R102 18,420 -1,197 -6.10 1,419 5.66 0.4761
2025-10-24 2025-09-30 13F CISCO SYSTEMS CS 17275R102 19,617 -21 -0.11 1,342 -1.47 0.5515
2025-07-21 2025-06-30 13F CISCO SYSTEMS CS 17275R102 19,638 170 0.87 1,362 13.41 0.6024
2025-04-23 2025-03-31 13F CISCO SYSTEMS CS 17275R102 19,468 -8,719 -30.93 1,201 -28.00 0.5762
2025-01-16 2024-12-31 13F CISCO SYSTEMS CS 17275R102 28,187 8,625 44.09 1,669 60.23 0.6231
2024-10-21 2024-09-30 13F CISCO SYSTEMS CS 17275R102 19,562 -9,013 -31.54 1,041 -23.29 0.4750
2024-07-17 2024-06-30 13F CISCO SYSTEMS CS 17275R102 28,575 8,745 44.10 1,358 37.21 0.5304
2024-04-15 2024-03-31 13F CISCO SYSTEMS CS 17275R102 19,830 5,171 35.28 990 33.65 0.4773
2024-01-24 2023-12-31 13F CISCO SYSTEMS CS 17275R102 14,659 -7,942 -35.14 741 -39.09 0.3713
2023-10-17 2023-09-30 13F CISCO SYSTEMS CS 17275R102 22,601 -2,199 -8.87 1,215 -5.30 0.6904
2023-07-21 2023-06-30 13F CISCO SYSTEMS CS 17275R102 24,800 -5,046 -16.91 1,283 -17.76 0.6400
2023-04-24 2023-03-31 13F CISCO SYSTEMS CS 17275R102 29,846 3,753 14.38 1,560 155,900.00 0.7380
2023-01-12 2022-12-31 13F CISCO SYSTEMS CS 17275R102 26,093 601 2.36 1 -99.90 0.7019
2022-10-18 2022-09-30 13F CISCO SYSTEMS CS 17275R102 25,492 3,031 13.49 1,020 6.47 0.6417
2022-07-25 2022-06-30 13F CISCO SYSTEMS CS 17275R102 22,461 1,228 5.78 958 -19.09 0.6472
2022-05-02 2022-03-31 13F CISCO SYSTEMS CS 17275R102 21,233 10,785 103.23 1,184 78.85 1.1004
2022-02-07 2021-12-31 13F CISCO SYSTEMS CS 17275R102 10,448 2,943 39.21 662 62.25 0.4310
2021-11-02 2021-09-30 13F CISCO SYSTEMS CS 17275R102 7,505 -89 -1.17 408 1.49 0.3025
2021-08-02 2021-06-30 13F CISCO SYSTEMS CS 17275R102 7,594 521 7.37 402 9.84 0.2637
2021-05-10 2021-03-31 13F CISCO SYSTEMS CS 17275R102 7,073 196 2.85 366 18.83 0.2860
2021-02-03 2020-12-31 13F CISCO SYSTEMS CS 17275R102 6,877 1,292 23.13 308 40.00 0.2566
2020-11-12 2020-09-30 13F/A-1 CISCO SYSTEMS CS 17275R102 5,585 876 18.60 220 0.00 0.2131
2020-08-07 2020-06-30 13F/A-1 CISCO SYSTEMS CS 17275R102 4,709 4,709 220 0.2638
2020-05-07 2020-03-31 13F/A-1 CISCO SYSTEMS CS 17275R102 0 -5,633 -100.00 0 -100.00
2020-01-28 2019-12-31 13F CISCO SYSTEMS CS 17275R102 5,633 185 3.40 270 0.37 0.2835
2019-11-01 2019-09-30 13F/A-1 CISCO SYSTEMS CS 17275R102 5,448 -15 -0.27 269 -10.03 0.3116
2019-08-02 2019-06-30 13F CISCO SYSTEMS CS 17275R102 5,463 32 0.59 299 2.05 0.3435
2019-05-08 2019-03-31 13F CISCO SYSTEMS CS 17275R102 5,431 -9,924 -64.63 293 -55.94 0.3352
2019-02-19 2018-12-31 13F CISCO SYSTEMS CS 17275R102 15,355 15,355 665 0.6105
2018-08-07 2018-06-30 13F CISCO SYSTEMS CS 17275R102 0 -4,769 -100.00 0 -100.00
2018-05-08 2018-03-31 13F CISCO SYSTEMS CS 17275R102 4,769 4,769 205 0.2217
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.