Latest inventory for PRTA: $0.
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+ FollowLatest change versus the prior comparable period (same company).
As of the most recent data (June 2026), PRTA shows a inventory of $0. In the prior-year period, the figure was $0. Scroll down for historical charts and peer comparison views.
Compared with the year-ago period, PRTA's inventory is now $0 (was $0). Pairing that YoY change with peer averages gives a clearer picture of whether Prothena plc is outperforming or lagging.
Tracking PRTA's inventory over time shows whether Prothena plc is scaling, shrinking, or reshaping that part of the business. The current reading is $0 In the prior-year period, the figure was $0. Multi-quarter patterns matter more than any single print, which is why this page emphasizes history and peer comparison charts.
Besides this inventory page, Stockcircle has Prothena plc's full stock overview, other financial metrics, insider and congress trade tabs, and tools to follow the stock. Together they help you connect inventory (currently $0) with ownership activity and broader fundamentals.
Prothena plc's inventory is $0; compare it with other Healthcare names on the peer chart. Typical ranges vary by sub-industry, so always sanity-check against the closest competitors, not just the whole sector bucket.