Position in ATRC
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$14,027,912
+$4,052,541 QoQ
Shares Held
501,355
+43.4% QoQ
Ownership
0.986%
of shares outstanding
% of Portfolio
0.76%
of 13F equity value
Holder Rank
#30
of 250 holders
Holding Since
Mar 2025
6 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ATRC Over Time
Shares Held
Position Value (USD)
Position in Medical Instruments & Supplies
Healthcare · as of Jun 30, 2026OSTERWEIS CAPITAL MANAGEMENT INC holds $29,381,732 across 5 Medical Instruments & Supplies names. ATRC ranks #2 (47.7% of the industry book) .
All Filings in ATRC
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6 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $14,027,912 | 501,355 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $9,975,371 | 349,645 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $8,053,427 | 203,575 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $11,353,320 | 322,080 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $10,339,918 | 315,530 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $9,536,217 | 295,605 | Shares | Sole | 2025-06-05 | |
| No filing history on record for this holder in this stock. | ||||||