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PROTO LABS INC COM (PRLB)

Institutional ownership, SEC filings and insider activity

Sector: Industry · SEC CIK 0001443669 · EDGAR filings · Updated 2026-07-14

PROTO LABS INC COM (PRLB) has reported institutional ownership of 92.7%, with 260 institutional managers holding positions valued at $1.26B per the latest 13F reporting period. SEC filings include an active material impairment disclosure (8-K Item 2.06).

Institutional ownership
92.7%
Institutional managers
260
Reported 13F value
$1.26B
Insider activity
32 trans.
−$638.0K net selling
Data flags
1 active
from SEC filings

Latest updates

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, PROTO LABS INC COM has 260 institutional holders and institutional ownership of 92.7%.

Insider activity

Insiders reported 32 transactions (2 buys, 4 sells) across 11 reporting insiders, with a net reported value of −$638.0K.

Data flags from SEC filings

Active material impairment disclosure (8-K Item 2.06), most recently filed 2024-10-25 (recurring since 2022-05-31) — source filing. The authoritative details are those stated in the filing itself.

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See full history, cross-references and alerts on Sightfile
Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-14.