8-K - Proto Labs Inc (0001443669) (Filer)
Published . Updated .
8-K - Proto Labs filed an 8-K with the SEC on Oct 29 (a notice of a material company event).
Directly affected
- PRLB Proto Labs
Named in this report.
Indirectly affected
- XLB Materials Select Sector SPDR+0.9% 30d
Materials Select Sector SPDR holds the materials sector that Proto Labs belongs to, so it often moves with news about it.
- ACA Arcosa+2.7% 5d
Arcosa is a peer of Proto Labs in fabricated structural metal products; rivals often move on the same news.
- PH Parker-Hannifin-1.4% 30d
Parker-Hannifin is a large materials company like Proto Labs; big names in a sector often move together.
- SNA Snap-on-4.7% 30d
Snap-on is a large materials company like Proto Labs; big names in a sector often move together.
- BALL Ball+4.1% 30d
Ball is a large materials company like Proto Labs; big names in a sector often move together.
- MAS Masco+9.6% 6d
Masco is a large materials company like Proto Labs; big names in a sector often move together.
Price reaction, T-5 to T+3
| Ticker | T-5 | T-3 | T-1 | T0 | T+1 | T+2 | T+3 |
|---|---|---|---|---|---|---|---|
| PRLB | -7.37% | -4.07% | base | after close | after close | after close | after close |
| XLBNo price data for this ticker | — | — | — | — | — | — | — |
| ACANo price data for this ticker | — | — | — | — | — | — | — |
| PHNo price data for this ticker | — | — | — | — | — | — | — |
| SNANo price data for this ticker | — | — | — | — | — | — | — |
| BALLNo price data for this ticker | — | — | — | — | — | — | — |
| MASNo price data for this ticker | — | — | — | — | — | — | — |
Closing-price change versus T-1, the last close before the story. T0 to T+3 fill in after each market close. Prices: Alpaca IEX.
Market Call
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Filed: 2026-10-29 AccNo: 0001443669-26-000043 Size: 637 KB Item 2.02: Results of Operations and Financial Condition Item 9.01: Financial Statements and Exhibits
Source: sec-edgar
How far Proto Labs (PRLB) has moved since 29 Oct 2026
| Company | When | Move | Status |
|---|---|---|---|
| Proto Labs (PRLB) | three days earlier | -4.07% | final price |
| Proto Labs (PRLB) | five days earlier | -7.37% | final price |
Trades by members of Congress and officials in the stocks in this story
- Rep. Byron Donalds sold Parker-Hannifin (PH), worth $1,001 - $15,000 on 11 Aug 2026. That is 79 days before publication. Filed 15 Sep 2026. View the filing.
- Rep. Byron Donalds sold Parker-Hannifin (PH) (held by a spouse), worth $1,001 - $15,000 on 11 Aug 2026. That is 79 days before publication. Filed 15 Sep 2026. View the filing.
- Donald J Trump, an executive branch official, bought Parker-Hannifin (PH), worth $100,001 - $250,000 on 31 Jul 2026. That is 90 days before publication. Filed 22 Sep 2026. View the filing.
- Donald J Trump, an executive branch official, sold BALL, worth $50,001 - $100,000 on 21 Aug 2026. That is 69 days before publication. Filed 8 Oct 2026. View the filing.
- Rep. Rohit Khanna sold Masco (MAS) (held by a dependent child), worth $1,001 - $15,000 on 11 Sep 2026. That is 48 days before publication. Filed 7 Oct 2026. View the filing.
- Rep. Rohit Khanna sold Masco (MAS) (held by a spouse), worth $1,001 - $15,000 on 3 Aug 2026. That is 87 days before publication. Filed 4 Sep 2026. View the filing.
Public disclosure filings, not a recommendation. The filing link is the source document. News use of these reports still sits under 5 U.S.C. § 13107(c).
Who gains and who loses around Proto Labs (PRLB)
Companies tied to this story
- PRLB Proto Labs
Proto Labs (PRLB) is linked, with no stored direction, high confidence in the 29 Oct 2026 story “8-K - Proto Labs Inc (0001443669) (Filer).” Reason on file: SEC 8-K filing -> direct issuer disclosure -> PRLB
How “8-K - Proto Labs Inc (0001443669) (Filer)” reaches Proto Labs (PRLB)
On 29 Oct 2026, “8-K - Proto Labs Inc (0001443669) (Filer)” is the story that connects Proto Labs (PRLB) to this story.
Proto Labs (PRLB) is on the page because SEC 8-K filing -> direct issuer disclosure -> PRLB
Dates in the story, and the Proto Labs (PRLB) price range
PRLB traded between 77.95 and 91.28 across 2 sessions. The latest close on file is 90.77.
What the saved facts support for Proto Labs (PRLB)
14 out of 100
“8-K - Proto Labs Inc (0001443669) (Filer)” scores 14 out of 100. The score uses 1 sources, and 1 linked companies.