Siobhan Cosby
Gelineau & Associates R.E.
The local track record
Siobhan Cosby ranks #59 (tied) by homes listed and #128 by asking volume in Waltham, among 300 agents and teams, with 1 home listed and $929.9K in asking volume. Median of Siobhan Cosby’s listings in Waltham: Unavailable. Figures cover Nov 2, 2025 – Nov 2, 2026.
Published geographic standings
Where this agent stands out
Citywide totals include qualifying neighborhood homes. Each geography has its own ranking; these rows are not added together.
| Area / reporting period | Homes listed | Listing rank | Asking volume | Volume rank | Median of this agent’s listings |
|---|---|---|---|---|---|
| WalthamWaltham · City or townNov 2, 2025 – Nov 2, 2026 edition window | 1Credited homes in this area | T-59of 300 | $929.9KNov 2, 2025 – Nov 2, 2026 | #128 | Unavailable1 priced home · this agent |
Answers from the data
About Siobhan Cosby’s listing activity
Where is Siobhan Cosby most active?
Among the published areas shown for Nov 2, 2025 – Nov 2, 2026, Siobhan Cosby has the most credited homes in Waltham: 1. Citywide counts include qualifying neighborhood homes.
View source and methodology ↗Where does Siobhan Cosby rank highest?
Siobhan Cosby ranks #59 (tied) by homes listed and #128 by asking volume in Waltham, among 300 agents and teams, with 1 home listed and $929.9K in asking volume. Median of Siobhan Cosby’s listings in Waltham: Unavailable. Figures cover Nov 2, 2025 – Nov 2, 2026.
View source and methodology ↗How does Siobhan Cosby rank in Waltham?
Siobhan Cosby ranks #59 (tied) by homes listed and #128 by asking volume in Waltham, with 1 home listed and $929.9K in asking volume from Nov 2, 2025 – Nov 2, 2026.
View source and methodology ↗What is the median of Siobhan Cosby’s listings in Waltham?
Unavailable. The median of Siobhan Cosby’s listings needs at least five priced homes and prices for at least 90% of the credited homes in Waltham from Nov 2, 2025 – Nov 2, 2026.
View source and methodology ↗How do citywide and neighborhood rankings relate?
Each area has its own ranking. A citywide count includes the agent’s qualifying homes inside that city, including its neighborhoods.
View source and methodology ↗Loading current property availability…