Simplex Trading
PRLB icon

Simplex Trading’s Protolabs PRLB Stock Holding History

Simplex Trading’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
2026
Q1 		– Sell
-500
Closed -$25.3K – 9915
2025
Q4 		$25.3K Sell
500
-100
-17% -$5.12K ﹤0.01% 6260
2025
Q3 		$30K Sell
600
-4,500
-88% -$206K ﹤0.01% 6985
2025
Q2 		$204K Sell
5,100
-3,400
-40% -$127K ﹤0.01% 4483
2025
Q1 		$297K Hold
8,500
– – ﹤0.01% 3928
2024
Q4 		$332K Buy
8,500
+1,700
+25% +$61.1K ﹤0.01% 3964
2024
Q3 		$199K Buy
6,800
+1,600
+31% +$48.8K ﹤0.01% 4516
2024
Q2 		$160K Sell
5,200
-500
-9% -$15.8K ﹤0.01% 4865
2024
Q1 		$203K Sell
5,700
-1,600
-22% -$57.8K ﹤0.01% 4845
2023
Q4 		$284K Buy
7,300
+5,800
+387% +$188K ﹤0.01% 4284
2023
Q3 		$39K Sell
1,500
-7,200
-83% -$217K ﹤0.01% 6034
2023
Q2 		$304K Sell
8,700
-1,500
-15% -$47.8K ﹤0.01% 3827
2023
Q1 		$338K Buy
10,200
+4,900
+92% +$152K ﹤0.01% 3688
2022
Q4 		$135K Sell
5,300
-5,400
-50% -$160K ﹤0.01% 4716
2022
Q3 		$389K Buy
10,700
+1,100
+11% +$47.7K ﹤0.01% 3764
2022
Q2 		$459K Buy
9,600
+2,000
+26% +$92.7K ﹤0.01% 3536
2022
Q1 		$402K Sell
7,600
-39,700
-84% -$2.09M ﹤0.01% 4134
2021
Q4 		$2.43M Buy
47,300
+26,200
+124% +$1.55M ﹤0.01% 1834
2021
Q3 		$1.95M Hold
21,100
– – ﹤0.01% 2181
2021
Q2 		$1.94M Buy
21,100
+20,982
+17,781% +$2.07M ﹤0.01% 2205
2021
Q1 		$1.44M Buy
118
+99
+521% +$16.5K ﹤0.01% 1997
2020
Q4 		$291K Hold
19
– – ﹤0.01% 4125
2020
Q3 		$246K Buy
19
+12
+171% +$1.58K ﹤0.01% 3850
2020
Q2 		$78K Buy
7
+2
+40% +$205 ﹤0.01% 5066
2020
Q1 		$38K Sell
5
-13
-72% -$1.21K ﹤0.01% 5423
2019
Q4 		$182K Buy
18
+15
+500% +$1.49K ﹤0.01% 3876
2019
Q3 		$30K Sell
3
-119
-98% -$12.1K ﹤0.01% 5500
2019
Q2 		$1.42M Sell
122
-6
-5% -$646 ﹤0.01% 1587
2019
Q1 		$1.34M Buy
128
+33
+35% +$3.7K ﹤0.01% 1729
2018
Q4 		$1.07M Buy
95
+3
+3% +$370 ﹤0.01% 1578
2018
Q3 		$1.49M Sell
92
-12
-12% -$1.7K ﹤0.01% 1504
2018
Q2 		$1.24M Sell
104
-8
-7% -$980 ﹤0.01% 1596
2018
Q1 		$244K Sell
112
-29
-21% -$3.28K 0.01% 1110
2017
Q4 		$204K Sell
141
-119
-46% -$10.7K 0.01% 1258
2017
Q3 		$342K Sell
260
-82
-24% -$5.93K 0.01% 879
2017
Q2 		$182K Buy
342
+311
+1,003% +$18.8K 0.01% 1252
2017
Q1 		$2K Buy
31
+2
+7% +$106 ﹤0.01% 5320
2016
Q4 		$1K Sell
29
-26
-47% -$1.36K ﹤0.01% 5477
2016
Q3 		$5K Sell
55
-8
-13% -$460 ﹤0.01% 4300
2016
Q2 		$2K Buy
63
+7
+13% +$467 ﹤0.01% 4986
2016
Q1 		$35K Sell
56
-48
-46% -$3.1K ﹤0.01% 2282
2015
Q4 		$11K Buy
104
+71
+215% +$4.58K ﹤0.01% 3219
2015
Q3 		$2K Sell
33
-8
-20% -$570 ﹤0.01% 4700
2015
Q2 		$4K Buy
41
+36
+720% +$2.54K ﹤0.01% 3851
2015
Q1 		$2K Sell
5
-17
-77% -$1.15K ﹤0.01% 4177
2014
Q4 		$34K Buy
+22
New +$1.45K ﹤0.01% 1649

Other funds holding PRLB

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
DGI
Disciplined Growth Investors Minneapolis, Minnesota $4.89B AUM 33.85% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
ACM
American Capital Management New York $1.86B AUM 20.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return

Simplex Trading's PRLB Position: Q1 2026 in Review

Simplex Trading opened a new position in Protolabs (PRLB) in Q1 2026: 10,779 shares worth $615K. The stake represents ﹤0.01% of the portfolio and ranks #3036 among its holdings. This is a return to the name: Simplex Trading previously reported a position in PRLB as recently as Q3 2025.

Simplex Trading first reported a position in PRLB in Q1 2015 and has held it in 24 quarters since. The position peaked at $1.08M in Q3 2021. 262 funds tracked by Wall St. Rank hold PRLB as of Q1 2026.

  • Simplex Trading held 10,779 shares of Protolabs worth $615K as of Q1 2026.
  • Protolabs was a new Simplex Trading position in Q1 2026.
  • Protolabs made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #3036 holding.
  • Simplex Trading first reported a position in Protolabs in Q1 2015 and has held it in 24 quarters since.
  • Simplex Trading's Protolabs position peaked at $1.08M in Q3 2021.
  • 262 funds tracked by Wall St. Rank held Protolabs as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.