PROTO LABS INC

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

PRLB (PROTO LABS INC) is held by 141 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.

141

Holders

(10 Elite)

$1.4B

Total Value

56% (143)

Consensus

80 buying - 63 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 141 funds

10 elite

Who's Trading

Source dates: Price Aug 27, 2026 · Insiders Jun 4, 2026 · Activists Aug 14, 2026 · Congress none

ActivistDGDISCIPLINED GROWTH INVESTORS INC /MN10.0%Aug 14, 2026

ActivistDimensional Fund Advisors LP4.8%Jul 14, 2026

InsiderWSWEHRWEIN SVENSell $115KJun 2, 2026

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Top Holders

Top Holders (141)History

AllNewIncreasedHeldDecreasedExited

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	3.9M(+5.9%)	$317.6M	0.0%	+87.87%	33
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	1.6M(+4.0%)	$130.4M	0.0%	+25.74%	31
DIMENSIONAL FUND ADVISORS LP	Decreased	1.2M(-9.4%)	$93.9M	0.0%	+141.14%	0
STATE STREET CORP	Increased	1.1M(+4.3%)	$92.8M	0.0%	+93.60%	31
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	1.1M(+1.4%)	$86M	0.0%	+26.70%	30
GEODE CAPITAL MANAGEMENT, LLC	Increased	614,028(+5.8%)	$50.1M	0.0%	-9.12%	31
RENAISSANCE TECHNOLOGIES LLC	Decreased	469,251(-9.8%)	$38.2M	0.1%	+124.79%	0
PRUDENTIAL FINANCIAL INC	Increased	457,810(+14.4%)	$37.3M	0.0%	+33.16%	33
FMR LLC	Increased	442,659(+4.8%)	$36.1M	0.0%	+37.29%	30
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Decreased	440,816(-5.0%)	$35.9M	0.0%	+108.42%	0
Nuveen, LLC	Increased	420,059(+32.5%)	$34.2M	0.0%	+49.06%	37
GOLDMAN SACHS GROUP INC	Increased	403,179(+186.1%)	$32.9M	0.0%	+15.20%	47
DRIEHAUS CAPITAL MANAGEMENT LLC	Increased	370,151(+0.3%)	$30.2M	0.2%	+52.48%	34
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	354,188(-1.7%)	$28.9M	0.0%	+10.21%	0
MORGAN STANLEY	Increased	314,778(+7.2%)	$25.7M	0.0%	+129.74%	31
NORTHERN TRUST CORP	Increased	284,562(+6.6%)	$23.2M	0.0%	-12.95%	30
FIRST TRUST ADVISORS LP	Increased	224,792(+142.1%)	$18.3M	0.0%	+21.29%	46
JPMORGAN CHASE & CO	Increased	224,717(+156.6%)	$17.9M	0.0%	+14.93%	46
DED. E. Shaw & Co., Inc.	Decreased	211,366(-6.3%)	$17.2M	0.0%	+93.43%	0
NORDEA INVESTMENT MANAGEMENT AB	Decreased	203,883(-4.9%)	$16.5M	0.0%	+122.95%	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