Proto Labs, Inc. Common stock (PRLB) SEC filings

PRLB SEC filings moved a median of -0.78% by the close. PRLB SEC filings — 10-K, 10-Q, 8-K and the rest — each read against the price at its own news timestamp. Back to the PRLB overview →

50 measured PRLB SEC filing events.

Where these PRLB SEC filings landedvs 50 measured PRLB SEC filing reactions
PRLB SEC filingMiddle 50% · -1.86% to +0.41%Zero: 0.00%Median: -0.78%Median -0.78%-3.00%0+3.00%
Middle 50% of PRLB SEC filing reactions-1.86% to +0.41%
Median reaction (to close)-0.78%
Measured reactions50
Point-in-time · zero look-ahead

Half of the 50 PRLB SEC filing events with a measured close landed between -1.86% and +0.41%; 36% closed up.

DateHeadlineEvent5-minTo close
Form 8-K Proto Labs Inc For: Aug 24SEC filing · Form 8-K—-1.93%
Form 10-Q Proto Labs Inc For: Jun 30SEC filing · Form 10-Q-0.59%+0.45%
Form 8-K Proto Labs Inc For: Jul 31SEC filing · Form 8-K+3.74%-6.19%
Form S-8 Proto Labs IncSEC filing · Form S-8+0.27%+3.82%
Form SD Proto Labs IncSEC filing · Form SD-0.24%+1.03%
Form 8-K Proto Labs Inc For: May 19SEC filing · Form 8-K-0.14%+0.05%
Form 8-K Proto Labs Inc For: May 06SEC filing · Form 8-K-2.34%-2.25%
Form 10-Q Proto Labs Inc For: Mar 31SEC filing · Form 10-Q+0.18%+5.32%
Form 8-K Proto Labs Inc For: May 01SEC filing · Form 8-K-2.02%-2.13%
Form ARS Proto Labs Inc For: Dec 31SEC filing · Form ARS—-0.61%
Form DEF 14A Proto Labs Inc For: May 19SEC filing · Form DEF-0.46%-1.06%
Form DEFA14A Proto Labs IncSEC filing · Form DEFA14A-0.26%-0.87%
Form 10-K Proto Labs Inc For: Dec 31SEC filing · Form 10-K-0.08%-0.43%
Form 8-K Proto Labs Inc For: Feb 06SEC filing · Form 8-K+1.03%+16.61%
Form 8-K/A Proto Labs Inc For: Feb 06SEC filing · Form 8-K-0.16%+0.53%
Form 10-Q Proto Labs Inc For: Sep 30SEC filing · Form 10-Q+0.34%+5.76%
Form 8-K Proto Labs Inc For: Oct 31SEC filing · Form 8-K-3.71%-7.16%
Form 8-K Proto Labs Inc For: Oct 03SEC filing · Form 8-K-0.12%-2.03%
Form 10-Q Proto Labs Inc For: Jun 30SEC filing · Form 10-Q-0.49%-2.94%
Form 8-K Proto Labs Inc For: Jul 31SEC filing · Form 8-K-1.22%-0.48%
Form 8-K Proto Labs Inc For: May 24SEC filing · Form 8-K+0.00%-0.98%
Form SD Proto Labs IncSEC filing · Form SD-0.05%+0.16%
Form S-8 Proto Labs IncSEC filing · Form S-8-0.29%-1.62%
Form 8-K Proto Labs Inc For: May 20SEC filing · Form 8-K-0.41%-4.61%
Form 10-Q Proto Labs Inc For: Mar 31SEC filing · Form 10-Q+0.27%+3.64%
Form 8-K Proto Labs Inc For: May 02SEC filing · Form 8-K+1.41%+6.14%
Form ARS Proto Labs Inc For: Dec 31SEC filing · Form ARS+0.00%-0.85%
Form DEF 14A Proto Labs Inc For: May 20SEC filing · Form DEF+0.00%-0.85%
Form DEFA14A Proto Labs IncSEC filing · Form DEFA14A+0.00%-0.85%
Form 10-K Proto Labs Inc For: Dec 31SEC filing · Form 10-K+0.02%-0.71%
Form 8-K Proto Labs Inc For: Feb 07SEC filing · Form 8-K-3.63%-6.89%
Form 10-Q Proto Labs Inc For: Sep 30SEC filing · Form 10-Q-0.18%+0.10%
Form 8-K Proto Labs Inc For: Nov 01SEC filing · Form 8-K+9.41%+13.64%
Form 8-K Proto Labs Inc For: Oct 21SEC filing · Form 8-K+0.00%-1.26%
Form 8-K Proto Labs Inc For: Oct 01SEC filing · Form 8-K+0.00%-1.65%
Form 10-Q Proto Labs Inc For: Jun 30SEC filing · Form 10-Q+0.02%-2.91%
Form 8-K Proto Labs Inc For: Aug 02SEC filing · Form 8-K-1.95%-4.73%
Form S-8 Proto Labs IncSEC filing · Form S-8-0.94%+10.23%
Form 8-K Proto Labs Inc For: Jul 22SEC filing · Form 8-K-0.12%+3.61%
Form SD Proto Labs IncSEC filing · Form SD-0.03%+0.29%
Form 8-K Proto Labs Inc For: May 23SEC filing · Form 8-K-0.28%+0.03%
Form 10-Q Proto Labs Inc For: Mar 31SEC filing · Form 10-Q—-0.48%
Form 8-K Proto Labs Inc For: May 03SEC filing · Form 8-K+0.05%-2.78%
Form ARS Proto Labs Inc For: Dec 31SEC filing · Form ARS-0.82%-1.67%
Form DEF 14A Proto Labs Inc For: May 23SEC filing · Form DEF+0.08%-0.05%
Form DEFA14A Proto Labs IncSEC filing · Form DEFA14A-0.82%-1.67%
Form 10-K Proto Labs Inc For: Dec 31SEC filing · Form 10-K-0.35%-1.06%
Form 8-K Proto Labs Inc For: Feb 09SEC filing · Form 8-K+4.40%-11.05%
Form 10-Q Proto Labs Inc For: Sep 30SEC filing · Form 10-Q-0.02%+0.00%
Form 8-K Proto Labs Inc For: Nov 03SEC filing · Form 8-K+0.07%+6.52%
That’s how PRLB usually reacts to SEC filings — get an email when it moves on news →
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More PRLB: earnings → · analyst actions → · PRLB overview →

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Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not. These are each name’s all-news baseline, not its SEC filings — that is what the link opens.