Cisco Systems, Inc.
US ˙ NasdaqGS ˙ US17275R1023

SecurityCSCO / Cisco Systems, Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Parallel Advisors, LLC ownership in CSCO / Cisco Systems, Inc.

On June 2, 2026 - Parallel Advisors, LLC filed a 13F-HR/A form disclosing ownership of 0 shares of Cisco Systems, Inc. (US:CSCO) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 113,809 shares of Cisco Systems, Inc.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Parallel Advisors, LLC has a history of taking positions in derivatives of the underlying security (CSCO) in the form of stock options. The firm currently holds call 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.

CSCO / Cisco Systems, 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)
2026-06-02 2026-03-31 13F/A-1 CISCO SYS Stock 17275R102 0 -113,809 -100.00 0 -100.00
2026-02-11 2025-12-31 13F CISCO SYS Stock 17275R102 113,809 0 0.00 8,767 12.59 0.1604
2025-11-13 2025-09-30 13F CISCO SYS Stock 17275R102 113,809 1,508 1.34 7,787 -0.06 0.1426
2025-07-08 2025-06-30 13F CISCO SYS Stock 17275R102 112,301 7,552 7.21 7,791 20.57 0.1557
2025-04-08 2025-03-31 13F CISCO SYS Stock 17275R102 104,749 2,324 2.27 6,463 6.58 0.1457
2025-02-10 2024-12-31 13F CISCO SYS Stock 17275R102 102,425 2,298 2.30 6,064 13.80 0.1364
2024-11-13 2024-09-30 13F CISCO SYS Stock 17275R102 100,127 -3,818 -3.67 5,329 7.90 0.1253
2024-08-08 2024-06-30 13F CISCO SYS Stock 17275R102 103,945 -10,350 -9.06 4,938 -13.43 0.1265
2024-05-06 2024-03-31 13F CISCO SYS Stock 17275R102 114,295 2,090 1.86 5,704 0.64 0.1546
2024-02-12 2023-12-31 13F CISCO SYS Stock 17275R102 112,205 -11,391 -9.22 5,669 -14.69 0.1682
2024-05-20 2023-09-30 13F/A-1 CISCO SYS Stock 17275R102 123,596 6,207 5.29 6,645 9.40 0.2213
2023-11-14 2023-09-30 13F CISCO SYS Stock 17275R102 123,596 6,207 6,645 0.2213
2024-05-20 2023-06-30 13F/A-1 CISCO SYS Stock 17275R102 117,389 724 0.62 6,074 -0.41 0.1956
2023-08-04 2023-06-30 13F CISCO SYS Stock 17275R102 117,389 724 6,074 0.1956
2024-05-20 2023-03-31 13F/A-1 CISCO SYS Stock 17275R102 116,665 11,683 11.13 6,099 21.94 0.2056
2023-04-25 2023-03-31 13F CISCO SYS Stock 17275R102 116,665 11,683 6,099 0.2056
2023-02-06 2022-12-31 13F CISCO SYS Stock 17275R102 104,982 8,680 9.01 5,001 29.83 0.2169
2022-11-10 2022-09-30 13F CISCO SYS Stock 17275R102 96,302 15,605 19.34 3,852 11.94 0.1773
2022-08-01 2022-06-30 13F CISCO SYS Stock 17275R102 80,697 -14,100 -14.87 3,441 -35.23 0.1579
2022-04-28 2022-03-31 13F CISCO SYS Stock 17275R102 94,797 -1,763 -1.83 5,313 -13.17 0.2108
2022-01-20 2021-12-31 13F CISCO SYS Stock 17275R102 96,560 5,654 6.22 6,119 23.67 0.2272
2021-11-02 2021-09-30 13F/A-1 CISCO SYS Stock 17275R102 90,906 3,758 4.31 4,948 7.12 0.1995
2021-08-06 2021-06-30 13F CISCO SYS Stock 17275R102 87,148 -1,737 -1.95 4,619 0.50 0.1956
2021-04-23 2021-03-31 13F CISCO SYS Stock 17275R102 88,885 15,876 21.75 4,596 40.68 0.2169
2021-02-02 2020-12-31 13F CISCO SYS Stock 17275R102 73,009 -3,673 -4.79 3,267 8.14 0.1773
2020-10-27 2020-09-30 13F CISCO SYS Stock 17275R102 76,682 -3,645 -4.54 3,021 -19.35 0.1869
2020-07-16 2020-06-30 13F CISCO SYS Stock 17275R102 80,327 9,615 13.60 3,746 34.80 0.2445
2020-04-27 2020-03-31 13F CISCO SYS Stock 17275R102 70,712 -2,486 -3.40 2,779 -20.83 0.2250
2020-01-30 2019-12-31 13F CISCO SYS Stock 17275R102 73,198 424 0.58 3,510 -2.39 0.2633
2019-11-01 2019-09-30 13F CISCO SYS Stock 17275R102 72,774 1,643 2.31 3,596 -7.63 0.3079
2019-08-05 2019-06-30 13F CISCO SYS Stock 17275R102 71,131 -10,151 -12.49 3,893 -11.28 0.3798
2019-05-01 2019-03-31 13F CISCO SYS Stock 17275R102 81,282 2,041 2.58 4,388 27.82 0.4925
2019-02-05 2018-12-31 13F CISCO SYS Stock 17275R102 79,241 3,603 4.76 3,433 -6.69 0.4787
2018-11-01 2018-09-30 13F CISCO SYS Stock 17275R102 75,638 10,974 16.97 3,679 32.24 0.4570
2018-07-30 2018-06-30 13F CISCO SYS Stock 17275R102 64,664 3,857 6.34 2,782 6.67 0.3978
2018-05-08 2018-03-31 13F CISCO SYS Stock 17275R102 60,807 1,737 2.94 2,608 15.30 0.4073
2018-02-13 2017-12-31 13F CISCO SYS INC COM Stock 17275R102 59,070 300 0.51 2,262 13.38 0.3701
2017-11-15 2017-09-30 13F/A-1 CISCO SYS INC COM Stock 17275R102 58,770 -12,765 -17.84 1,995 -11.33 0.3431
2017-08-07 2017-06-30 13F CISCO SYS INC COM Stock 17275R102 71,535 -12,836 -15.21 2,250 -22.15 0.4243
2017-05-12 2017-03-31 13F/A-1 CISCO SYS INC COM Stock 17275R102 84,371 5,760 7.33 2,890 21.63 0.5745
2017-05-12 2017-03-31 13F CISCO SYS INC COM Stock 17275R102 84,371 2,890
2017-02-14 2016-12-31 13F CISCO SYS INC COM Stock 17275R102 78,611 78,611 2,376 0.5580
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
(%)
2022-01-19 2021-12-31 13F CISCO SYS Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F CISCO SYS Stock Call 87,148 4,619 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.