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DIMENSIONAL FUND ADVISORS LP
> PRLB
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | Proto Labs Inc | PRLB | 846,076 | 11,054 | 29,579,433,000 | 1,899,568,000 | $34,960.73 |
| 03/31/2023 | Proto Labs Inc | PRLB | 835,022 | 44,196 | 27,679,865,000 | 27,659,677,000 | $33,148.67 |
| 12/31/2022 | Proto Labs Inc | PRLB | 790,826 | 64,067 | 20,188,000 | -6,288,000 | $25.53 |
| 09/30/2022 | Proto Labs Inc | PRLB | 726,759 | 99,965 | 26,476,000 | -3,507,000 | $36.43 |
| 06/30/2022 | Proto Labs Inc | PRLB | 626,794 | 200,600 | 29,983,000 | 7,436,000 | $47.84 |
| 03/31/2022 | Proto Labs Inc | PRLB | 426,194 | 108,638 | 22,547,000 | 6,240,000 | $52.90 |
| 12/31/2021 | Proto Labs Inc | PRLB | 317,556 | 2,210 | 16,307,000 | -4,697,000 | $51.35 |
| 09/30/2021 | Proto Labs Inc | PRLB | 315,346 | -19,879 | 21,004,000 | -9,771,000 | $66.61 |
| 06/30/2021 | Proto Labs Inc | PRLB | 335,225 | -136,595 | 30,775,000 | -41,606,000 | $91.80 |
| 12/31/2020 | Proto Labs Inc | PRLB | 471,820 | -4,698 | 72,381,000 | 10,667,000 | $153.41 |
| 09/30/2020 | Proto Labs Inc | PRLB | 476,518 | 19,634 | 61,714,000 | 10,326,000 | $129.51 |
| 06/30/2020 | Proto Labs Inc | PRLB | 456,884 | 11,965 | 51,388,000 | 17,517,000 | $112.47 |
| 03/31/2020 | Proto Labs Inc | PRLB | 444,919 | -852 | 33,871,000 | -11,397,000 | $76.13 |
| 12/31/2019 | Proto Labs Inc | PRLB | 445,771 | -3,929 | 45,268,000 | -647,000 | $101.55 |
| 09/30/2019 | Proto Labs Inc | PRLB | 449,700 | -457 | 45,915,000 | -6,310,000 | $102.10 |
| 06/30/2019 | Proto Labs Inc | PRLB | 450,157 | 2,618 | 52,225,000 | 5,170,000 | $116.02 |
| 03/31/2019 | Proto Labs Inc | PRLB | 447,539 | 5,296 | 47,055,000 | -2,825,000 | $105.14 |
| 12/31/2018 | Proto Labs Inc | PRLB | 442,243 | 10,667 | 49,880,000 | -19,926,000 | $112.79 |
| 09/30/2018 | Proto Labs Inc | PRLB | 431,576 | -4,527 | 69,806,000 | 17,931,000 | $161.75 |
| 06/30/2018 | Proto Labs Inc | PRLB | 436,103 | -7,393 | 51,875,000 | -258,000 | $118.95 |
| 03/31/2018 | Proto Labs Inc | PRLB | 443,496 | -4,096 | 52,133,000 | 6,031,000 | $117.55 |
| 12/31/2017 | Proto Labs Inc | PRLB | 447,592 | 8,723 | 46,102,000 | 10,862,000 | $103.00 |
| 09/30/2017 | Proto Labs Inc | PRLB | 438,869 | 48,172 | 35,240,000 | 8,966,000 | $80.30 |
| 06/30/2017 | Proto Labs Inc | PRLB | 390,697 | 39,266 | 26,274,000 | 8,316,000 | $67.25 |
| 03/31/2017 | Proto Labs Inc | PRLB | 351,431 | 44,535 | 17,958,000 | 2,199,000 | $51.10 |
| 12/31/2016 | Proto Labs Inc | PRLB | 306,896 | -1,284 | 15,759,000 | -2,704,000 | $51.35 |
| 09/30/2016 | Proto Labs Inc | PRLB | 308,180 | 300 | 18,463,000 | 742,000 | $59.91 |
| 06/30/2016 | Proto Labs Inc | PRLB | 307,880 | -1,396 | 17,721,000 | -6,122,000 | $57.56 |
| 03/31/2016 | Proto Labs Inc | PRLB | 309,276 | 309,276 | 23,843,000 | 23,843,000 | $77.09 |
| 12/31/2015 | Proto Labs Inc | PRLB | 317,295 | 61,654 | 20,209,000 | 3,040,000 | $63.69 |
| 09/30/2015 | Proto Labs Inc | PRLB | 321,774 | 66,133 | 21,559,000 | 4,390,000 | $67.00 |
| 06/30/2015 | Proto Labs Inc | PRLB | 321,774 | 66,133 | 21,713,000 | 4,544,000 | $67.48 |
| 03/31/2015 | Proto Labs Inc | PRLB | 275,884 | 20,243 | 19,312,000 | 2,143,000 | $70.00 |
| 12/31/2014 | Proto Labs Inc | PRLB | 255,641 | 255,641 | 17,169,000 | 17,169,000 | $67.16 |
| 09/30/2014 | Proto Labs Inc | PRLB | 247,884 | 9,766 | 17,105,000 | -2,401,000 | $69.00 |
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