PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 500 Value ($000) $25 Avg Close $51.15 Range $45.10 - $55.90
Q1 2025
Shares 249 Value ($000) $9 Avg Close $39.41 Range $34.08 - $46.73
Q4 2024
Shares 478 Value ($000) $19 Avg Close $35.94 Range $26.35 - $45.15
Q3 2021
Shares 535 Value ($000) $36 Avg Close $78.12 Range $66.51 - $93.66
Q2 2021
Shares 435 Value ($000) $40 Avg Close $98.50 Range $82.60 - $127.65
Q4 2020
Shares 1,585 Value ($000) $243 Avg Close $141.05 Range $113.62 - $203.88
Q3 2020
Shares 1,642 Value ($000) $213 Avg Close $131.45 Range $106.69 - $164.99
Q4 2019
Shares 1,400 Value ($000) $142 Avg Close $99.10 Range $89.02 - $107.86
Q4 2018
Shares 84 Value ($000) $9 Avg Close $123.33 Range $101.03 - $163.03
Q3 2018
Shares 1,154 Value ($000) $187 Avg Close $141.47 Range $115.95 - $166.60
Q4 2017
Shares 14,229 Value ($000) $1,466 Avg Close $89.74 Range $79.06 - $109.10
Q2 2017
Shares 14,809 Value ($000) $996 Avg Close $60.44 Range $48.70 - $70.10
Q1 2017
Shares 5,435 Value ($000) $278 Avg Close $52.95 Range $48.00 - $60.25
Q4 2016
Shares 2,810 Value ($000) $144 Avg Close $52.43 Range $43.10 - $59.65
Q2 2016
Shares 4,463 Value ($000) $257 Avg Close $66.74 Range $55.07 - $82.06
Q1 2016
Shares 3,744 Value ($000) $289 Avg Close $64.57 Range $51.61 - $79.65
Q4 2015
Shares 8,925 Value ($000) $568 Avg Close $64.50 Range $58.84 - $69.48
Q3 2015
Shares 6,778 Value ($000) $454 Avg Close $71.25 Range $65.82 - $79.95
Q3 2014
Shares 200 Value ($000) $14 Avg Close $78.24 Range $68.88 - $94.23
Q3 2013
Shares 11,333 Value ($000) $866 Avg Close $69.23 Range $61.46 - $80.66
Q2 2013
Shares 1,821 Value ($000) $118 Avg Close $53.72 Range $43.62 - $67.40