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
2022 Q4	–	Sell	-19,200	Closed	-$699K	–	9911
2022 Q3	$699K	Sell	19,200 -5,700	-23%	-$247K	﹤0.01%	6068
2022 Q2	$1.19M	Sell	24,900 -8,000	-24%	-$371K	﹤0.01%	5152
2022 Q1	$1.74M	Sell	32,900 -1,300	-4%	-$68.4K	﹤0.01%	5023
2021 Q4	$1.76M	Sell	34,200 -29,300	-46%	-$1.73M	﹤0.01%	4732
2021 Q3	$4.23M	Buy	63,500 +13,000	+26%	+$1.02M	﹤0.01%	3014
2021 Q2	$4.64M	Sell	50,500 -12,000	-19%	-$1.18M	﹤0.01%	2782
2021 Q1	$7.61M	Buy	62,500 +37,200	+147%	+$6.19M	﹤0.01%	1854
2020 Q4	$3.88M	Sell	25,300 -2,500	-9%	-$353K	﹤0.01%	2454
2020 Q3	$3.6M	Buy	27,800 +20,700	+292%	+$2.72M	﹤0.01%	2224
2020 Q2	$799K	Buy	+7,100	New	+$729K	﹤0.01%	4401
2016 Q3	–	Sell	-9,600	Closed	-$553K	–	4403
2016 Q2	$553K	Buy	+9,600	New	+$641K	﹤0.01%	2664

Other funds holding PRLB

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 Austin, Texas $481B AUM 30.42% 1-Year Est. Return

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 Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

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.