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# Who owns Proto Labs Inc (PRLB)? Elite investor 13F holders

5 tracked elite investors reported holding Proto Labs Inc as of 2026-06-30, including Renaissance Technologies LLC, Rubric Capital, D.E. Shaw, Polen Capital Management, Gotham Asset Management. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

5 tracked investors currently reported holding · Latest report period: 2026-06-30 · Industrials · Capital Goods

Proto Labs, Inc., together with its subsidiaries, operates as a digital manufacturer of custom parts in the United States and Europe. It offers manufacturing services, such as molding, computer numerical control machining, 3D printing, and sheet metal to developers, engineers, and supply chain teams. The company was incorporated in 1999 and is headquartered in Maple Plain, Minnesota.

## Reported holders and securities, including exits (up to 20)

| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|  --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [Renaissance Technologies LLC](https://ownershiptrace.com/13f/investors/63) | PROTO LABS INC | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 38248649.00 USD | 469251.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1037389/0001037389-26-000059-index.html) |
| [Rubric Capital](https://ownershiptrace.com/13f/investors/120) | PROTO LABS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 8859485.00 USD | 108692.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1687509/0001104659-26-097098-index.html) |
| [D.E. Shaw](https://ownershiptrace.com/13f/investors/98) | PROTO LABS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 17228443.00 USD | 211366.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1009207/0001104659-26-097217-index.html) |
| [Polen Capital Management](https://ownershiptrace.com/13f/investors/61) | PROTO LABS INC | SHARE | 2026-06-30 | 2026-08-04 00:00:00 | 2853747.00 USD | 35011.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1034524/0001172661-26-003035-index.html) |
| [Gotham Asset Management](https://ownershiptrace.com/13f/investors/94672) | PROTO LABS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 804015.00 USD | 9864.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1510387/0001398344-26-014644-index.html) |
| [Bridgewater Associates](https://ownershiptrace.com/13f/investors/8) | PROTO LABS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 0.00 USD | 0.000000 | Shares | exited | [Original filing](https://www.sec.gov/Archives/edgar/data/1350694/0001350694-26-000003-index.html) |

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

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