PROTO LABS INC

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PRLB·743713109·US·Common Stock·Industrials - Metal Fabrication-13D/G

PRLB (PROTO LABS INC) is held by 144 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($317.6M), VANGUARD PORTFOLIO MANAGEMENT LLC ($130.4M), DIMENSIONAL FUND ADVISORS LP ($93.9M). Net institutional sentiment: Mixed.

144

Holders

(11 Elite)

$1.4B

Total Value

56% (147)

Consensus

82 buying - 65 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)79

Insider (Form 4)60

Activist (13D/13G)63

Congressional (STOCK Act)31

Holder Quality

65

★★★★★

Elite

13

★★★★

Strong

73

★★★

Solid

31

★★

Below

78

★

Weak

Held by 144 funds

11 elite

Who's Trading

Source dates: Price Oct 12, 2026 · Insiders Sep 25, 2026 · Activists Aug 14, 2026 · Congress none

InsiderSDSchumacher DanielSell $477KSep 24, 2026

InsiderSDSchumacher DanielSell $418KSep 17, 2026

InsiderSDSchumacher DanielSell $9KSep 16, 2026

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Top Holders

Top Holders (144)History

AllNewIncreasedHeldDecreasedExitedFirst report

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	3.9M(+5.9%)	$317.6M	0.0%	+119.46%	33
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	1.6M(+4.0%)	$130.4M	0.0%	+58.05%	31
DIMENSIONAL FUND ADVISORS LP	Decreased	1.2M(-9.4%)	$93.9M	0.0%	+75.32%	0
STATE STREET CORP	Increased	1.1M(+4.3%)	$92.8M	0.0%	+20.72%	31
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	1.1M(+1.4%)	$86M	0.0%	+59.68%	30
GEODE CAPITAL MANAGEMENT, LLC	Increased	614,028(+5.8%)	$50.1M	0.0%	+3.99%	31
RENAISSANCE TECHNOLOGIES LLC	Decreased	469,251(-9.8%)	$38.2M	0.1%	+162.80%	0
PRUDENTIAL FINANCIAL INC	Increased	457,810(+14.4%)	$37.3M	0.0%	+61.76%	33
FMR LLC	Increased	442,659(+4.8%)	$36.1M	0.0%	+71.48%	30
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Decreased	440,816(-5.0%)	$35.9M	0.0%	+145.02%	0
Nuveen, LLC	Increased	420,059(+32.5%)	$34.2M	0.0%	+73.48%	37
GOLDMAN SACHS GROUP INC	Increased	403,179(+186.1%)	$32.9M	0.0%	+35.50%	47
DRIEHAUS CAPITAL MANAGEMENT LLC	Increased	370,151(+0.3%)	$30.2M	0.2%	+80.76%	34
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	354,188(-1.7%)	$28.9M	0.0%	+27.56%	0
MORGAN STANLEY	Increased	314,778(+7.2%)	$25.7M	0.0%	+166.90%	31
NORTHERN TRUST CORP	Increased	284,562(+6.6%)	$23.2M	0.0%	+1.64%	30
FIRST TRUST ADVISORS LP	Increased	224,792(+142.1%)	$18.3M	0.0%	+41.08%	46
JPMORGAN CHASE & CO	Increased	224,717(+156.6%)	$17.9M	0.0%	+34.44%	46
DED. E. Shaw & Co., Inc.	Decreased	211,366(-6.3%)	$17.2M	0.0%	+127.68%	0
NORDEA INVESTMENT MANAGEMENT AB	Decreased	203,883(-4.9%)	$16.5M	0.0%	+156.26%	0

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PRLBPROTO LABS INC

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer