PRLB

Proto Labs Inc

Company with tickers: PRLB

CIK

1443669

CUSIP

743713109

Shares Outstanding

23,794,045

13F Activity (30d)

228 filings 225 filers

Short Volume (Last 90 Days)

Date	Short Volume	Short Exempt	Total Volume	Short %
2026-05-27	24,791	0	44,629	55.5%
2026-05-26	37,303	277	74,594	50.0%
2026-05-22	42,653	14,889	71,466	59.7%
2026-05-21	45,753	0	68,983	66.3%
2026-05-20	43,162	0	62,519	69.0%
2026-05-19	47,582	0	73,110	65.1%
2026-05-18	30,094	0	59,197	50.8%
2026-05-15	61,800	0	111,067	55.6%
2026-05-14	30,014	0	53,492	56.1%
2026-05-13	51,611	0	92,818	55.6%
2026-05-12	34,903	35	76,793	45.5%
2026-05-11	51,304	833	75,274	68.2%
2026-05-08	22,808	757	40,809	55.9%
2026-05-07	29,437	0	48,449	60.8%
2026-05-06	41,432	0	64,435	64.3%
2026-05-05	48,298	0	88,003	54.9%
2026-05-04	46,558	1,366	70,807	65.8%
2026-05-01	72,425	629	128,799	56.2%
2026-04-30	26,740	1	38,136	70.1%
2026-04-29	39,029	0	59,978	65.1%
2026-04-28	15,430	0	27,309	56.5%
2026-04-27	18,130	0	34,589	52.4%
2026-04-24	16,065	0	25,655	62.6%
2026-04-23	18,867	0	31,037	60.8%
2026-04-22	22,204	0	29,243	75.9%
2026-04-21	27,040	0	42,959	62.9%
2026-04-20	15,832	0	22,461	70.5%
2026-04-17	29,690	0	40,787	72.8%
2026-04-16	32,615	0	65,255	50.0%
2026-04-15	73,548	0	89,181	82.5%
2026-04-14	20,459	600	34,677	59.0%
2026-04-13	21,222	0	33,500	63.3%
2026-04-10	14,075	0	22,211	63.4%
2026-04-09	30,606	0	39,517	77.5%
2026-04-08	21,888	0	37,435	58.5%
2026-04-07	26,798	0	38,080	70.4%
2026-04-06	15,614	0	27,113	57.6%