Insider / CISCO SYSTEMS, INC.
Patterson Mark
EVP and CFO at CISCO SYSTEMS, INC.
- Company
- CISCO SYSTEMS, INC.
- Ticker
- CSCO
- First filing on record
- November 13, 2025
- Latest trade on record
- September 16, 2026
- SEC filings
- EDGAR ↗
Patterson Mark, EVP and CFO at CISCO SYSTEMS, INC., has disclosed 27 transactions in CSCO since November 13, 2025: 0 purchases (0 open-market buys) and 25 sales, worth about $13.3M at the reported prices. The latest was filed September 18, 2026, 2 days after the trade.
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
In the last 12 months Patterson Mark made no purchases and 25 sales worth $13M, plus 2 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Patterson Mark has traded 1 stock on record; the largest by dollars is CSCO.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
0 of 12 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| S | Open-market sale | 18 | 93,704 | $8.0M |
| F | Shares withheld for tax | 7 | 64,837 | $5.3M |
| A | Grant or award | 2 | 167,309 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 22 | 0 | 21 · $4.6M |
| 2025 | 5 | 0 | 4 · $8.7M |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| CSCO | Other A | September 16, 2026 | September 18, 2026 | 2d | 92,817 | — | — | Form 4 ↗ | ||
| CSCO | Sell S | September 11, 2026 | September 14, 2026 | 3d | 1,795 | $109 | $195K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell F | September 10, 2026 | September 14, 2026 | 4d | 1,553 | $109 | $170K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | August 14, 2026 | August 17, 2026 | 3d | 500 | $113 | $56K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | August 14, 2026 | August 17, 2026 | 3d | 3,788 | $112 | $423K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | August 14, 2026 | August 17, 2026 | 3d | 904 | $111 | $100K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell F | August 10, 2026 | August 12, 2026 | 2d | 4,066 | $121 | $494K | Form 4 ↗ | ||
| CSCO | Sell S | June 11, 2026 | June 11, 2026 | 0d | 200 | $122 | $24K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | June 11, 2026 | June 11, 2026 | 0d | 2,546 | $122 | $310K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | June 11, 2026 | June 11, 2026 | 0d | 1,100 | $120 | $132K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | June 11, 2026 | June 11, 2026 | 0d | 851 | $119 | $102K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | June 11, 2026 | June 11, 2026 | 0d | 1,600 | $118 | $189K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | June 11, 2026 | June 11, 2026 | 0d | 1,100 | $118 | $129K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell F | June 10, 2026 | June 11, 2026 | 1d | 6,399 | $120 | $770K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | May 15, 2026 | May 19, 2026 | 4d | 1,712 | $118 | $202K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | May 15, 2026 | May 19, 2026 | 4d | 2,005 | $117 | $235K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | May 15, 2026 | May 19, 2026 | 4d | 1,495 | $117 | $174K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | May 15, 2026 | May 19, 2026 | 4d | 300 | $115 | $35K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell F | May 10, 2026 | May 12, 2026 | 2d | 3,640 | $97 | $351K | Form 4 ↗ | ||
| CSCO | Sell S | March 20, 2026 | March 23, 2026 | 3d | 2,501 | $78 | $196K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | March 20, 2026 | March 23, 2026 | 3d | 2,391 | $78 | $186K | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell F | February 10, 2026 | February 11, 2026 | 1d | 1,840 | $87 | $160K | Form 4 ↗ | ||
| CSCO | Sell F | November 21, 2025 | November 24, 2025 | 3d | 2,626 | $76 | $200K | Form 4 ↗ | ||
| CSCO | Sell S | November 18, 2025 | November 20, 2025 | 2d | 20,284 | $78 | $1.6M | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell S | November 18, 2025 | November 20, 2025 | 2d | 48,632 | $77 | $3.8M | 10b5-1 plan | Form 4 ↗ | |
| CSCO | Sell F | November 10, 2025 | November 13, 2025 | 3d | 44,714 | $71 | $3.2M | Form 4 ↗ | ||
| CSCO | Other A | November 10, 2025 | November 13, 2025 | 3d | 74,492 | — | — | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 18, 2026 | Form 4 | 0000858877-26-000151 | 1 | published | EDGAR ↗ |
| September 14, 2026 | Form 4 | 0000858877-26-000137 | 2 | published | EDGAR ↗ |
| August 17, 2026 | Form 4 | 0000858877-26-000126 | 3 | published | EDGAR ↗ |
| August 12, 2026 | Form 4 | 0000858877-26-000116 | 1 | published | EDGAR ↗ |
| June 11, 2026 | Form 4 | 0000858877-26-000097 | 7 | published | EDGAR ↗ |
| May 19, 2026 | Form 4 | 0000858877-26-000084 | 4 | published | EDGAR ↗ |
| May 12, 2026 | Form 4 | 0000858877-26-000066 | 1 | published | EDGAR ↗ |
| March 23, 2026 | Form 4 | 0000858877-26-000045 | 2 | published | EDGAR ↗ |
| February 11, 2026 | Form 4 | 0000858877-26-000014 | 1 | published | EDGAR ↗ |
| November 24, 2025 | Form 4 | 0000858877-25-000190 | 1 | published | EDGAR ↗ |
| November 20, 2025 | Form 4 | 0000858877-25-000182 | 2 | published | EDGAR ↗ |
| November 13, 2025 | Form 4 | 0000858877-25-000164 | 2 | published | EDGAR ↗ |
Other insiders at CISCO SYSTEMS, INC.
- Robbins Charles Director 31 rows
- SCHULMAN DANIEL H Director 31 rows
- Tuszik Oliver EVP, Global Sales 24 rows
- Patel Jeetendra I President and CPO 22 rows
- Subaiya Thimaya K. EVP, Operations 21 rows
- Stahlkopf Deborah L EVP and Chief Legal Officer 19 rows
- Wong Maria Victoria SVP & Chief Acctg Officer 13 rows
- JOHNSON KRISTINA M Director 12 rows
- GARRETT MARK Director 11 rows
- BUSH WESLEY G Director 9 rows
Everyone on file, with contracts and lobbying under the company's name: CISCO SYSTEMS, INC..
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 12 | 27 | November 13, 2025 | September 18, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.