John Overdeck’s Protolabs PRLB Stock Holding History

John Overdeck’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 Q1	–	Sell	-23,500	Closed	-$1.21M	–	3977
2021 Q4	$1.21M	Buy	23,500 +6,300	+37%	+$372K	﹤0.01%	2382
2021 Q3	$1.15M	Sell	17,200 -6,800	-28%	-$531K	﹤0.01%	2492
2021 Q2	$2.2M	Buy	24,000 +22,000	+1,100%	+$2.17M	0.01%	1775
2021 Q1	$244K	Buy	+2,000	New	+$333K	﹤0.01%	3498
2017 Q3	–	Sell	-4,000	Closed	-$269K	–	3105
2017 Q2	$269K	Buy	+4,000	New	+$242K	﹤0.01%	2685
2017 Q1	–	Sell	-4,000	Closed	-$205K	–	3237
2016 Q4	$205K	Buy	+4,000	New	+$210K	﹤0.01%	2911

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

John Overdeck's PRLB Position: Q2 2026 in Review

John Overdeck increased its Protolabs (PRLB) stake by 4.4% in Q2 2026, buying an estimated $37.6K and bringing the position to 12,734 shares worth $1.04M. The position accounts for ﹤0.01% of the portfolio, ranked #3588.

John Overdeck first reported a position in PRLB in Q2 2017 and has held it in 23 quarters since. The position peaked at $37.7M in Q2 2021. 276 funds tracked by Wall St. Rank hold PRLB as of Q2 2026.

John Overdeck held 12,734 shares of Protolabs worth $1.04M as of Q2 2026.
John Overdeck bought 534 Protolabs shares in Q2 2026, an estimated $37.6K.
Protolabs made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #3588 holding.
John Overdeck first reported a position in Protolabs in Q2 2017 and has held it in 23 quarters since.
John Overdeck's Protolabs position peaked at $37.7M in Q2 2021.
276 funds tracked by Wall St. Rank held Protolabs as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.