NYSE · PRLB

Proto Labs, Inc.

Industrials · Manufacturing - Metal Fabrication

$78.22

Down-$3.76 (-4.59%)

Updated Sep 15, 2026, 4:59 AM

SID Score

5.0/10

Composite research score

Smart Money

—

Institutional and insider signal

Price performance

PRLB price history

1M range · 20 trading sessions · Daily adjusted prices

Daily close

View OHLC price history

PRLB OHLC price history, latest 40 sessions
Date	Open	High	Low	Close	Volume
Sep 14, 2026	$79.12	$80.26	$78.14	$78.22	176.09K
Sep 11, 2026	$81.38	$82.00	$80.92	$81.98	102.58K
Sep 10, 2026	$80.00	$80.66	$78.67	$79.75	187.94K
Sep 9, 2026	$80.38	$81.52	$80.335	$80.89	106.53K
Sep 8, 2026	$81.86	$82.55	$80.73	$81.03	141.59K
Sep 4, 2026	$79.91	$81.905	$79.84	$81.44	155.52K
Sep 3, 2026	$79.08	$79.69	$77.045	$79.53	144.92K
Sep 2, 2026	$78.50	$80.3099	$78.42	$78.59	180.45K
Sep 1, 2026	$78.59	$79.595	$77.92	$78.49	140.18K
Aug 31, 2026	$79.76	$80.27	$78.83	$80.06	171.07K
Aug 28, 2026	$80.30	$81.285	$78.61	$79.74	174.45K
Aug 27, 2026	$78.035	$80.66	$78.035	$80.10	172.49K
Aug 26, 2026	$77.35	$78.85	$77.1941	$78.85	144.37K
Aug 25, 2026	$78.46	$78.62	$76.55	$77.60	139.71K
Aug 24, 2026	$79.72	$80.187	$76.40	$76.78	182.87K
Aug 21, 2026	$79.68	$79.68	$77.78	$79.61	168.22K
Aug 20, 2026	$81.15	$81.15	$78.0501	$78.79	177.76K
Aug 19, 2026	$85.68	$85.825	$81.30	$82.08	238.67K
Aug 18, 2026	$89.55	$89.55	$84.70	$84.88	196.5K
Aug 17, 2026	$92.09	$92.285	$89.725	$90.86	157.46K