Jane Street
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Jane Street’s Protolabs PRLB Stock Holding History

Jane Street’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 		$376K Buy
6,600
+700
+12% +$40.6K ﹤0.01% 8708
2025
Q4 		$298K Buy
+5,900
New +$302K ﹤0.01% 8850
2025
Q3 		– Sell
-11,000
Closed -$440K – 11546
2025
Q2 		$440K Buy
11,000
+400
+4% +$14.9K ﹤0.01% 7160
2025
Q1 		$371K Buy
+10,600
New +$418K ﹤0.01% 7439
2023
Q3 		– Sell
-6,000
Closed -$210K – 9209
2023
Q2 		$210K Sell
6,000
-500
-8% -$15.9K ﹤0.01% 7630
2023
Q1 		$215K Buy
+6,500
New +$201K ﹤0.01% 7739
2022
Q4 		– Sell
-11,700
Closed -$426K – 9910
2022
Q3 		$426K Sell
11,700
-5,400
-32% -$234K ﹤0.01% 6981
2022
Q2 		$818K Sell
17,100
-16,300
-49% -$756K ﹤0.01% 5853
2022
Q1 		$1.77M Sell
33,400
-11,700
-26% -$616K ﹤0.01% 4981
2021
Q4 		$2.32M Buy
45,100
+20,100
+80% +$1.19M ﹤0.01% 4187
2021
Q3 		$1.67M Sell
25,000
-3,000
-11% -$234K ﹤0.01% 4861
2021
Q2 		$2.57M Buy
28,000
+11,800
+73% +$1.16M ﹤0.01% 3846
2021
Q1 		$1.97M Sell
16,200
-9,400
-37% -$1.56M ﹤0.01% 4044
2020
Q4 		$3.93M Sell
25,600
-1,100
-4% -$155K ﹤0.01% 2433
2020
Q3 		$3.46M Buy
26,700
+9,300
+53% +$1.22M ﹤0.01% 2264
2020
Q2 		$1.96M Buy
+17,400
New +$1.79M ﹤0.01% 3100
2016
Q2 		– Sell
-15,400
Closed -$1.19M – 4473
2016
Q1 		$1.19M Buy
+15,400
New +$994K 0.01% 1695

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

Jane Street's PRLB Position: Q1 2026 in Review

Jane Street reduced its Protolabs (PRLB) stake by 48% in Q1 2026, selling an estimated $3.09M and leaving 57,355 shares worth $3.27M. The position accounts for ﹤0.01% of the portfolio, ranked #4187.

Jane Street first reported a position in PRLB in Q3 2013 and has held it in 29 quarters since. The position peaked at $8.6M in Q4 2020. 262 funds tracked by Wall St. Rank hold PRLB as of Q1 2026.

  • Jane Street held 57,355 shares of Protolabs worth $3.27M as of Q1 2026.
  • Jane Street sold 53,240 Protolabs shares in Q1 2026, an estimated $3.09M.
  • Protolabs made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #4187 holding.
  • Jane Street first reported a position in Protolabs in Q3 2013 and has held it in 29 quarters since.
  • Jane Street's Protolabs position peaked at $8.6M in Q4 2020.
  • 262 funds tracked by Wall St. Rank held Protolabs as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.