Proto Labs Inc (PRLB) research
Proto Labs Inc- Sector
- Machinery
- Last price
- $79.09
- As of
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- highINSTITUTIONAL_SURGE
MILLENNIUM MANAGEMENT LLC added +260% to PRLB (2026Q2)
- highINSTITUTIONAL_SURGE
CITADEL ADVISORS LLC added +50% to PRLB (2026Q2)
- highINSTITUTIONAL_SURGE
CITADEL ADVISORS LLC added +1203% to PRLB (2026Q2)
- highINSTITUTIONAL_SURGE
MILLENNIUM MANAGEMENT LLC added +260% to PRLB (2026Q2)
- highINSTITUTIONAL_SURGE
CITADEL ADVISORS LLC added +1203% to PRLB (2026Q2)
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Every signal on PRLB, as it fires
You are seeing 5 of 20 signals recorded on PRLB since 2026-05-17.
The five above all landed on 2026-09-06. The other 15 were recorded on 5 other days. 13 of the 20 are institutional flow rows, which arrive in batches on filing days.
No fixed schedule: it goes out when the data has something in it. Unsubscribe anytime. We never sell your data.
Largest reported share positions in PRLB (2026Q2)
| Manager / security | Market value | % portfolio | QoQ |
|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLCCUSIP 743713109 · 2026Q2 | $38.2M | 0.05% | , |
| D. E. Shaw & Co., Inc.CUSIP 743713109 · 2026Q2 | $17.2M | 0.01% | , |
| MILLENNIUM MANAGEMENT LLCCUSIP 743713109 · 2026Q2 | $7.6M | 0.00% | , |
| CITADEL ADVISORS LLCCUSIP 743713109 · 2026Q2 | $7.2M | 0.00% | , |
| Point72 Asset Management, L.P.CUSIP 743713109 · 2026Q2 | $3M | 0.00% | , |
| TWO SIGMA INVESTMENTS, LPCUSIP 743713109 · 2026Q2 | $1M | 0.00% | , |
Quarterly SEC Form 13F disclosures from the managers Kresmion tracks, not a complete ownership ranking. Non-option holdings only; reported put and call positions are excluded. Different securities are labeled by CUSIP. Values are reporting-period snapshots, not current position values. Filings can arrive up to 45 days after quarter-end.
Recent SEC filings, PRLB
- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
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- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
- 10-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
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