PRLB · TickerCove

PRLBProto Labs, Inc.Industrials · Manufacturing - Miscellaneousas of 2026-09-16

Horizon

Issued 2026-09-16 at $83.24 · now $83.24 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, PRLB has typically landed between $69.88 and $100.71 — a range of −16.0% to +21.0% from the issuance price $83.24.

Range of outcomes in historically similar periods — not a price prediction. Ranges are scored publicly on /methodology.

Actual close
Typical path (median)
Middle 50% of outcomes
90% range

3,640 overlapping 1 month windows · 2012-02-24 – 2026-08-17 · basis climatology · forecast (batch). Probability up 53.9% (90% CI 51.7–56.1%, ≈1,408 obs).

The cone is anchored at the 2026-09-16 issuance close ($83.24) — the price the forecast resolves against on 2026-10-15, not the latest close. The drawn path shape is illustrative (bands widen with √t); every labeled number is real — the anchor, the scored batch p90/IQR endpoints, and the typical move.

52-week range$83.24 · 80% of range

$46.81 low$92.32 high

Trailing 52 weeks to 2026-09-16 — factual context, not a signal.

Base rate up · monthiClimatology base rate that a US-listed stock rises over a month, with its 90% CI and ≈1,408 effective observations. Not a call on this stock — we have no evidence its odds differ.

53.9%

90% CI 51.7%–56.1%

Distribution · month iiThe price-anchored range: typical move (median), and the p90 downside/upside — 90% of similar periods stayed inside these. Ranges, not a prediction of direction.

−0.4%

typical move · IQR 15.2%

−16.0%worst (p90)+21.0%best (p90)

Insider convictioniOpen-market common-stock purchases by company insiders in the last 90 days (grants and option exercises excluded). Historical tendency, not advice — detail below.

conviction buys

0 open-market sales

Congress disclosuresiRecent disclosed congressional trades for this company. Purchase clusters (≥2 members buying within 90 days) historically preceded a modestly higher forward return (+32 bp/mo in 2022–2026, +45 bp/mo in 2015–2021) — a descriptive tendency, not a forecast input. Detail below.

0 buys · 0 sells · 0 members

cluster tilt persisted, ~halved after 2021

Where PRLB has typically landed a month from the 2026-09-16 close of $83.24 — the range is history, not a prediction.

now $83.24 (+0.0%)
typical $82.95 (-0.4%)
middle 50% $76.62–$89.27
90% range $69.88–$100.71

Actual 1-month windows behind the coneiEvery overlapping 1-month window in this security's own price history was ranked by realized return; shown are the 3 worst and 3 best of 3,640 windows spanning 2012-02-24 to 2026-09-16. Not cherry-picked — these are the extremes of the full sample. Max drop / max rise are the deepest and highest points reached within each window. See /methodology.

Start	Return	Max drop	Max rise
3 worst
2021-02-08	−43.9%	−46.0%	+0.0%
2021-02-04	−43.1%	−43.1%	+5.4%
2021-01-27	−42.1%	−42.1%	+0.0%
3 best
2020-04-22	+59.1%	+0.0%	+59.1%
2020-04-24	+58.9%	+0.0%	+58.9%
2023-10-26	+58.4%	−0.9%	+58.4%

3,640 overlapping windows · 2012-02-24 – 2026-09-16 · not cherry-picked

Seasonality · by month i

iFor each calendar month, the share of years this security closed higher than the month before, and the average month-over-month return, over ~15 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.

Jan

71%

+5.5%

n=14

Feb

57%

+1.2%

n=14

Mar

33%

−2.5%

n=15

Apr

53%

−0.6%

n=15

May

73%

+5.1%

n=15

Jun

53%

+3.0%

n=15

Jul

60%

+3.2%

n=15

Aug

33%

−1.0%

n=15

Sep

53%

−0.4%

n=15

Oct

29%

−5.4%

n=14

Nov

64%

+7.7%

n=14

Dec

50%

+0.8%

n=14

Up-frequency and average month-over-month return · historical frequency, not a prediction

Reported insider & political trades

Every Form 4 the people closest to this company have filed with the SEC — plotted against the share price, aggregated by month, and shown with the gap between when each trade happened and when it was disclosed. A public record, not advice.

Date	Person	Role	Action	Shares @ price	Value	Ownership Δ	vs S&P 1m	vs S&P 6m	Owned after	Filing
2026-06-02	WEHRWEIN SVEN	director	Sale	1,500 @ $76.91	$115K	−4.3% of holding	−0.7%	not yet — horizon still open	33,005	Form 4 · filed 2 days after the trade
2026-06-02	WEHRWEIN SVEN	director	Sale	500 @ $78.38	$39K	−1.5% of holding	−0.7%	not yet — horizon still open	32,505	Form 4 · filed 2 days after the trade
2026-05-12	Kenison Michael R.	officer	Sale	6,643 @ $70.30	$467K	−26.2% of holding	+9.8%	not yet — horizon still open	18,683	Form 4 · filed 1 day after the trade
2026-05-12	Kenison Michael R.	officer	Sale	4,198 @ $68.70	$288K	−12.7% of holding	+9.8%	not yet — horizon still open	28,902	Form 4 · filed 1 day after the trade
2026-05-12	Kenison Michael R.	officer	Sale	3,576 @ $69.78	$250K	−12.4% of holding	+9.8%	not yet — horizon still open	25,326	Form 4 · filed 1 day after the trade
2026-05-12	Kenison Michael R.	officer	Sale	1,613 @ $67.58	$109K	−4.6% of holding	+9.8%	not yet — horizon still open	33,100	Form 4 · filed 1 day after the trade
2026-05-11	Kenison Michael R.	officer	Sale	7,433 @ $70.26	$522K	−21.5% of holding	+5.9%	not yet — horizon still open	27,186	Form 4 · filed 2 days after the trade
2026-05-07	Kenison Michael R.	officer	Sale	200 @ $70.00	$14K	−0.7% of holding	+10.6%	not yet — horizon still open	27,186	Form 4 · filed 1 day after the trade
2026-02-17	Kenison Michael R.	officer	Sale	5,000 @ $66.46	$332K	−16.5% of holding	−12.6%	+14.0%	25,302	Form 4 · filed 1 day after the trade
2026-02-06	Kenison Michael R.	officer	Sale	2,500 @ $60.00	$150K	−6.8% of holding	−12.2%	+21.0%	34,526	Form 4 · filed 3 days after the trade
2025-11-25	Kenison Michael R.	officer	Sale	3,048 @ $50.17	$153K	−9.5% of holding	+1.2%	+36.5%	28,898	Form 4 · filed 1 day after the trade
2025-08-05	Gawlick Rainer	director	Purchase	1,715 @ $43.79	$75K	+4.1% of holding	+10.2%	+11.1%	43,883	Form 4 · filed 2 days after the trade
2025-08-04	Krishna Suresh	director	Purchase	1,725 @ $43.51	$75K	+10.6% of holding	+11.2%	+13.9%	18,021	Form 4 · filed 2 days after the trade

The vs-S&P columns are a labeled look-back on what the stock did after each filing, measured against the index over the same window. Descriptive history, not a claim about the person or a reason to trade.

75 award / exercise / gift records — not counted as purchases

Awards, option exercises, gifts and tax-withholding disposals are shown separately and never counted as open-market purchases or sales — they carry no conviction information.

Date	Person	Role	Action	Shares	Owned after	Filing
2026-05-23	Krishna Suresh	director	Withheld for tax	1,247	30,147	Form 4
2026-05-20	Schumacher Daniel	officer	Withheld for tax	255	45,019	Form 4
2026-05-20	Parlange Bernardo	officer	Award / grant	3,789	3,789	Form 4
2026-05-20	Parlange Bernardo	officer	Award / grant	2,109	2,109	Form 4
2026-05-19	Black Archie C.	director	Award / grant	2,210	28,428	Form 4
2026-05-19	Chand Sujeet	director	Award / grant	2,210	26,863	Form 4
2026-05-19	Chin Moonhie	director	Award / grant	2,210	22,306	Form 4
2026-05-19	KRANTZ DONALD G	director	Award / grant	2,210	26,863	Form 4
2026-05-19	WEHRWEIN SVEN	director	Award / grant	2,210	34,505	Form 4
2026-05-19	Gawlick Rainer	director	Award / grant	2,210	46,093	Form 4
2026-05-12	Kenison Michael R.	officer	Option exercise	4,042	34,713	Form 4
2026-05-12	Kenison Michael R.	officer	Option exercise	1,928	29,114	Form 4
2026-05-12	Kenison Michael R.	officer	Option exercise	1,557	30,671	Form 4
2026-05-12	Kenison Michael R.	officer	Option exercise	4,042	0	Form 4
2026-05-12	Kenison Michael R.	officer	Option exercise	1,557	4,674	Form 4
2026-05-12	Kenison Michael R.	officer	Option exercise	1,928	1,928	Form 4
2026-05-11	Kenison Michael R.	officer	Option exercise	3,756	30,942	Form 4
2026-05-11	Kenison Michael R.	officer	Option exercise	3,677	34,619	Form 4
2026-05-11	Kenison Michael R.	officer	Option exercise	3,756	3,856	Form 4
2026-05-11	Kenison Michael R.	officer	Option exercise	3,677	3,778	Form 4
2026-05-07	Kenison Michael R.	officer	Option exercise	100	27,286	Form 4
2026-05-07	Kenison Michael R.	officer	Option exercise	100	27,386	Form 4
2026-05-07	Kenison Michael R.	officer	Option exercise	100	7,455	Form 4
2026-05-07	Kenison Michael R.	officer	Option exercise	100	7,612	Form 4
2026-02-25	Kenison Michael R.	officer	Withheld for tax	531	27,186	Form 4
2026-02-25	Schumacher Daniel	officer	Withheld for tax	504	45,274	Form 4
2026-02-25	Krishna Suresh	director	Award / grant	13,373	31,394	Form 4
2026-02-25	Kenison Michael R.	officer	Award / grant	2,415	27,717	Form 4
2026-02-25	Schumacher Daniel	officer	Award / grant	3,074	45,778	Form 4
2026-02-25	Kenison Michael R.	officer	Award / grant	4,404	4,404	Form 4
2026-02-25	Kermisch Marc	officer	Award / grant	2,795	6,513	Form 4
2026-02-25	Kermisch Marc	officer	Award / grant	5,095	5,095	Form 4
2026-02-25	Schumacher Daniel	officer	Award / grant	5,605	5,605	Form 4
2026-02-25	Krishna Suresh	director	Award / grant	24,383	24,383	Form 4
2026-02-13	Kenison Michael R.	officer	Withheld for tax	1,540	30,302	Form 4
2026-02-13	Schumacher Daniel	officer	Withheld for tax	1,267	42,704	Form 4
2026-02-11	Schumacher Daniel	officer	Option exercise	3,135	43,971	Form 4
2026-02-11	Schumacher Daniel	officer	Option exercise	3,135	0	Form 4
2026-02-10	Schumacher Daniel	officer	Withheld for tax	6,809	40,836	Form 4
2026-02-10	Kenison Michael R.	officer	Withheld for tax	2,684	31,842	Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Across 2012–2021, stocks where a CEO, C-suite officer, or director had recently made an open-market common-stock purchase ran about +28 bp per month above the universe average (n=34,268 stock-weeks). A historical tendency, not a prediction.

Congressional disclosures

No congressional trades disclosed for this company.

Resolves in i

28d remaining

2026-09-174% elapsed2026-10-15

Logged immutably 2026-09-17; scored automatically on 2026-10-15 — no edits, ever.

Earnings & context analysis

These panels are being prepared. They are generated by multiple language models, checked, and stored before display — never written live for a page view. Until a model panel has been generated and reviewed for a company, nothing is shown here, honestly, rather than a placeholder.

Calibration i

Every forecast is logged when made and scored when the month is up. The record is shown from the day it starts — young and honest.

How scoring works →

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.

Seasonality · by month iHow this security has tended to do in each calendar month historically — a frequency, never a prediction.

Reported insider & political trades

Congressional disclosures

Seasonality · by month i