Susan L. Bostrom is CMO & EVP at CISCO SYSTEMS INC (CSCO). They have made 35 open-market trades across 9 companies since 2006, most recently 2026-06-17.
CIK 0001181469
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $20K since 2006, against 34 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CSCO | 366,679 | $39.4M |
| IOT | 217,403 | $8.6M |
| NOW | 21,685 | $3.1M |
| NTNX | 34,567 | $2.3M |
| VAR | 7,634 | $1.4M |
| GTLB | 24,874 | $1.3M |
| CDNS | 3,789 | $1.2M |
| PLAN | 12,104 | $771K |
| MKTO | 10,951 |
Shares reported on the most recent Form 4, priced at the 2026-06-22 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| GTLB | SELL | 2026-03-27 | 2026-03-30 | $20.36 | $662K | -7.7% | +4.1% | +42.0% |
| GTLB | SELL | 2025-12-08 | 2025-12-10 | $39.46 | $3.9M | -4.2% | -11.6% | -42.1% |
| GTLB | SELL | 2025-03-19 | 2025-03-21 | $51.88 | $2.1M | -6.4% | -20.7% | -21.1% |
| GTLB | SELL | 2024-12-31 | 2025-01-03 | $56.26 | $1.1M | +5.1% | +15.7% | -30.4% |
| GTLB | SELL | 2024-12-24 | 2024-12-27 | $60.19 | $1.2M | +6.4% | +15.0% | -10.9% |
| IOT | SELL | 2023-12-26 | 2023-12-28 | $35.22 | $704K | -2.4% | -4.1% | +14.0% |
| GTLB | SELL | 2023-12-12 | 2023-12-13 | $60.87 | $2.4M | -0.5% | -5.0% | -11.7% |
| IOT | SELL | 2023-12-11 | 2023-12-13 | $34.30 | $1.4M | -5.1% | -9.6% | +6.5% |
| GTLB | SELL | 2023-09-13 | 2023-09-15 | $51.00 | $765K | -10.4% | -2.0% | +35.3% |
| GTLB | SELL | 2023-09-08 | 2023-09-12 | $52.95 | $2.6M | -10.3% | -4.8% | +19.0% |
| NOW | SELL | 2021-08-03 | 2021-08-04 | $461.40 | $2.1M | -2.5% | +14.1% | +15.4% |
| NTNX | SELL | 2020-09-01 | 2020-09-02 | $28.21 | $1.5M | -8.9% | -16.4% | +4.4% |
| NOW | SELL | 2020-08-07 | 2020-08-11 | $434.31 | $1.3M | +5.7% | +6.6% | +18.1% |
| CDNS | SELL | 2020-08-04 | 2020-08-06 | $110.24 | $1.1M | -1.1% | -9.0% | +9.6% |
| NOW | SELL | 2020-02-04 | 2020-02-05 | $353.66 | $1.1M | +5.1% | -6.7% | +9.0% |
| PLAN | SELL | 2019-05-31 | 2019-06-04 | $43.05 | $3.2M | +10.5% | +20.7% | +19.5% |
| CDNS | SELL | 2019-03-01 | 2019-03-05 | $57.66 | $4.0M | +3.5% | +8.0% | +4.7% |
| VAR | SELL | 2018-02-22 | 2018-02-22 | $120.60 | $471K | +2.5% | +2.4% | -1.2% |
| NOW | SELL | 2018-02-09 | 2018-02-13 | $142.24 | $5.5M | +9.0% | +18.1% | +18.0% |
| VAR | SELL | 2017-05-02 | 2017-05-03 | $91.08 | $654K | +5.3% | +10.6% | +6.6% |
| NOW | SELL | 2015-10-26 | 2015-10-28 | $78.49 | $603K | -9.6% | -1.1% | -8.3% |
| CDNS | SELL | 2015-05-19 | 2015-05-21 | $19.40 | $834K | -6.7% | +2.6% | +2.6% |
| MKTO | SELL | 2015-05-18 | 2015-05-20 | $29.29 | $1.3M | -20.2% | -1.4% | -1.4% |
| MKTO | SELL | 2014-02-18 | 2014-02-20 | $39.75 | $1.1M | -20.2% | -1.4% | -1.4% |
| VAR | SELL | 2014-01-31 | 2014-02-03 | $81.50 | $1.5M | -5.5% | -1.4% | -1.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| $386K |
| FUEL | 13,905 | — |
| Total | $58.4M |