Proto Labs shares owned by Algert Coldiron Investors
Quarter-by-quarter ownership of Proto Labs (PRLB) shares owned by Algert Coldiron Investors
from 13F filings
Historical chart of Algert Coldiron Investors investment in Proto Labs
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Quarterly reported holdings in Proto Labs by Algert Coldiron Investors
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $4.4M | 87k | 50.03 |
| 2025-06-30 | $3.3M | 83k | 40.04 |
| 2025-03-31 | $3.0M | 85k | 35.04 |
| 2024-12-31 | $1.4M | 36k | 39.10 |
| 2024-09-30 | $1.8M | 60k | 29.37 |
| 2024-06-30 | $1.9M | 63k | 30.89 |
| 2024-03-31 | $2.6M | 73k | 35.76 |
| 2023-12-31 | $2.8M | 72k | 38.96 |
| 2023-09-30 | $2.2M | 85k | 26.40 |
| 2023-06-30 | $3.2M | 91k | 34.96 |
| 2023-03-31 | $2.5M | 76k | 33.15 |
| 2022-12-31 | $1.7M | 67k | 25.53 |
| 2022-09-30 | $2.6M | 73k | 36.43 |
| 2022-06-30 | $2.7M | 56k | 47.84 |
| 2022-03-31 | $2.1M | 40k | 52.90 |
| 2020-06-30 | $499k | 4.4k | 112.36 |
| 2020-03-31 | $315k | 4.1k | 76.03 |