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 $6.73T AUM 46.02% 1-Year Est. Return

DGI

Disciplined Growth Investors Minneapolis, Minnesota $5.91B AUM 53.97% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

ACM

American Capital Management New York $2.23B AUM 28.03% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Prudential Financial Newark, New Jersey $91.8B AUM 38.24% 1-Year Est. Return

Jane Street's PRLB Position: Q2 2026 in Review

Jane Street increased its Protolabs (PRLB) stake by 150% in Q2 2026, buying an estimated $6.06M and bringing the position to 143,527 shares worth $11.7M. The position accounts for ﹤0.01% of the portfolio, ranked #2675.

Jane Street first reported a position in PRLB in Q3 2013 and has held it in 30 quarters since. 277 funds tracked by Wall St. Rank hold PRLB as of Q2 2026.

Jane Street held 143,527 shares of Protolabs worth $11.7M as of Q2 2026.
Jane Street bought 86,172 Protolabs shares in Q2 2026, an estimated $6.06M.
Protolabs made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #2675 holding.
Jane Street first reported a position in Protolabs in Q3 2013 and has held it in 30 quarters since.
277 funds tracked by Wall St. Rank held Protolabs as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.