William Blair & Company
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William Blair & Company’s Protolabs PRLB Stock Holding History

William Blair & Company’s Portfolio PRLB Stock Details PRLB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2022
Q4 		– Sell
-5,544
Closed -$202K – 1864
2022
Q3 		$202K Sell
5,544
-255
-4% -$11.1K ﹤0.01% 1385
2022
Q2 		$277K Sell
5,799
-1,452
-20% -$67.3K ﹤0.01% 1306
2022
Q1 		$384K Sell
7,251
-2,844
-28% -$150K ﹤0.01% 1266
2021
Q4 		$518K Sell
10,095
-18,799
-65% -$1.11M ﹤0.01% 1200
2021
Q3 		$1.92M Sell
28,894
-26,798
-48% -$2.09M 0.01% 716
2021
Q2 		$5.11M Sell
55,692
-5,056
-8% -$498K 0.02% 455
2021
Q1 		$7.4M Buy
60,748
+2,015
+3% +$335K 0.03% 375
2020
Q4 		$9.01M Buy
58,733
+1,291
+2% +$182K 0.03% 326
2020
Q3 		$7.44M Sell
57,442
-49,681
-46% -$6.53M 0.03% 324
2020
Q2 		$12M Sell
107,123
-1,300
-1% -$133K 0.06% 244
2020
Q1 		$8.25M Buy
108,423
+2,966
+3% +$275K 0.05% 258
2019
Q4 		$10.7M Sell
105,457
-22,512
-18% -$2.23M 0.06% 256
2019
Q3 		$13.1M Buy
127,969
+3,469
+3% +$354K 0.08% 227
2019
Q2 		$14.4M Buy
124,500
+3,029
+2% +$326K 0.08% 210
2019
Q1 		$12.8M Buy
121,471
+6,061
+5% +$680K 0.08% 225
2018
Q4 		$13M Buy
115,410
+3,031
+3% +$374K 0.09% 196
2018
Q3 		$18.2M Sell
112,379
-43,064
-28% -$6.09M 0.11% 181
2018
Q2 		$18.5M Sell
155,443
-4,531
-3% -$555K 0.13% 167
2018
Q1 		$18.8M Sell
159,974
-5,405
-3% -$611K 0.13% 156
2017
Q4 		$17M Sell
165,379
-12,498
-7% -$1.12M 0.12% 178
2017
Q3 		$14.3M Sell
177,877
-11,312
-6% -$818K 0.11% 192
2017
Q2 		$12.7M Buy
189,189
+14,621
+8% +$884K 0.1% 213
2017
Q1 		$9.44M Sell
174,568
-7,656
-4% -$405K 0.08% 232
2016
Q4 		$9.36M Sell
182,224
-135,994
-43% -$7.13M 0.08% 221
2016
Q3 		$19.1M Sell
318,218
-189,643
-37% -$10.9M 0.17% 155
2016
Q2 		$29.2M Sell
507,861
-198,484
-28% -$13.2M 0.27% 101
2016
Q1 		$54.5M Sell
706,345
-32,316
-4% -$2.09M 0.51% 59
2015
Q4 		$47M Buy
738,661
+5,644
+0.8% +$364K 0.44% 70
2015
Q3 		$49.1M Buy
733,017
+32,794
+5% +$2.34M 0.42% 67
2015
Q2 		$47.3M Buy
700,223
+319,345
+84% +$22.5M 0.07% 366
2015
Q1 		$26.7M Sell
380,878
-33,808
-8% -$2.29M 0.04% 487
2014
Q4 		$27.9M Sell
414,686
-40,911
-9% -$2.69M 0.05% 479
2014
Q3 		$31.4M Buy
455,597
+173,372
+61% +$13.6M 0.05% 427
2014
Q2 		$23.1M Buy
282,225
+141,948
+101% +$9.61M 0.04% 523
2014
Q1 		$9.49M Buy
140,277
+22,060
+19% +$1.64M 0.02% 836
2013
Q4 		$8.41M Sell
118,217
-181,338
-61% -$14.1M 0.01% 829
2013
Q3 		$22.9M Sell
299,555
-2,440
-0.8% -$169K 0.04% 490
2013
Q2 		$19.6M Buy
+301,995
New +$16.2M 0.04% 488

Other funds holding PRLB

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
DGI
Disciplined Growth Investors Minneapolis, Minnesota $4.89B AUM 33.85% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
BCM
Brown Capital Management Baltimore, Maryland $704M AUM 6.25% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Schroder Investment Management Group
Schroder Investment Management Group London, United Kingdom $122B AUM 29.27% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 1-Year Est. Return
NAMA
Nikko Asset Management Americas New York $7.07B AUM 50.91% 1-Year Est. Return

William Blair & Company's PRLB Position: Q4 2022 in Review

William Blair & Company sold out of Protolabs (PRLB) in Q4 2022, closing a stake of 5,544 shares — an estimated $202K sold.

William Blair & Company first reported a position in PRLB in Q2 2013 and held it in 38 quarters. The position peaked at $54.5M in Q1 2016. 199 funds tracked by Wall St. Rank hold PRLB as of Q4 2022.

  • William Blair & Company reported no remaining Protolabs position as of Q4 2022 after selling out during the quarter.
  • William Blair & Company sold 5,544 Protolabs shares in Q4 2022, an estimated $202K.
  • William Blair & Company first reported a position in Protolabs in Q2 2013 and held it in 38 quarters.
  • William Blair & Company's Protolabs position peaked at $54.5M in Q1 2016.
  • 199 funds tracked by Wall St. Rank held Protolabs as of Q4 2022.

Based on William Blair & Company's 13F filing for Q4 2022, filed 10 Feb 2023.