PRLB
Proto Labs IncCompany with tickers: PRLB
Market Cap
$1.88B
Shares Outstanding
23,794,045
CIK
1443669
CUSIP
743713109
13F Activity (30d)
11 filings
4 filers
Website
Visit website
Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.
Off-Exchange Volume History
| Week Start | ATS Volume | Non-ATS OTC Volume | Total Off-Exchange | % of FINRA Weekly Volume |
|---|---|---|---|---|
| 2026-05-04 | 213,606 | 120,111 | 333,717 | 41.2% |
| 2026-04-27 | 200,824 | 107,843 | 308,667 | 36.9% |
| 2026-04-20 | 115,812 | 158,915 | 274,727 | 57.0% |
| 2026-04-13 | 194,231 | 102,688 | 296,919 | 48.3% |
| 2026-04-06 | 126,211 | 52,654 | 178,865 | 26.5% |
| 2026-03-30 | 127,184 | 47,067 | 174,251 | 39.9% |
| 2026-03-23 | 156,363 | 84,905 | 241,268 | 32.2% |
| 2026-03-16 | 145,196 | 108,416 | 253,612 | 27.8% |
| 2026-03-09 | 198,906 | 102,628 | 301,534 | 32.8% |
| 2026-03-02 | 164,475 | 94,819 | 259,294 | 33.1% |
| 2026-02-23 | 212,510 | 108,290 | 320,800 | 37.0% |
| 2026-02-16 | 179,160 | 77,760 | 256,920 | 36.6% |
| 2026-02-09 | 490,068 | 151,788 | 641,856 | 43.2% |
| 2026-02-02 | 457,864 | 192,882 | 650,746 | 42.0% |
| 2026-01-26 | 259,154 | 73,358 | 332,512 | 41.6% |
| 2026-01-19 | 181,838 | 134,599 | 316,437 | 41.8% |
| 2026-01-12 | 165,348 | 76,356 | 241,704 | 37.3% |
| 2026-01-05 | 171,432 | 51,162 | 222,594 | 32.7% |
| 2025-12-29 | 92,598 | 58,314 | 150,912 | 37.3% |
| 2025-12-22 | 63,864 | 50,898 | 114,762 | 32.2% |
| 2025-12-15 | 136,218 | 445,275 | 581,493 | 43.2% |
| 2025-12-08 | 109,689 | 53,967 | 163,656 | 29.3% |
| 2025-12-01 | 123,839 | 107,398 | 231,237 | 38.2% |
| 2025-11-24 | 91,039 | 104,206 | 195,245 | 29.6% |
| 2025-11-17 | 132,882 | 74,520 | 207,402 | 26.2% |
| 2025-11-10 | 141,972 | 205,798 | 347,770 | 37.0% |
| 2025-11-03 | 310,488 | 121,812 | 432,300 | 27.3% |
| 2025-10-27 | 319,351 | 153,333 | 472,684 | 34.4% |
| 2025-10-20 | 211,183 | 180,046 | 391,229 | 39.5% |
| 2025-10-13 | 256,214 | 177,620 | 433,834 | 34.9% |
| 2025-10-06 | 146,507 | 154,856 | 301,363 | 36.7% |
| 2025-09-29 | 118,191 | 87,764 | 205,955 | 32.0% |
| 2025-09-22 | 181,752 | 126,815 | 308,567 | 33.8% |
| 2025-09-15 | 161,016 | 96,348 | 257,364 | 23.1% |
| 2025-09-08 | 128,518 | 119,696 | 248,214 | 36.1% |
| 2025-09-01 | 107,092 | 108,167 | 215,259 | 33.5% |
| 2025-08-25 | 191,528 | 158,628 | 350,156 | 37.7% |
| 2025-08-18 | 168,134 | 82,361 | 250,495 | 33.0% |
| 2025-08-11 | 180,441 | 112,988 | 293,429 | 34.0% |
| 2025-08-04 | 266,301 | 192,417 | 458,718 | 39.8% |
| 2025-07-28 | 307,261 | 134,266 | 441,527 | 35.0% |
| 2025-07-21 | 165,753 | 57,256 | 223,009 | 31.1% |
| 2025-07-14 | 230,033 | 111,520 | 341,553 | 32.8% |
| 2025-07-07 | 211,946 | 55,694 | 267,640 | 34.5% |
| 2025-06-30 | 138,435 | 36,547 | 174,982 | 33.8% |
Showing 1–45 of 45 weeks