PROTO LABS INC (PRLB) is held by 141 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is BlackRock, Inc. as of Q1 2026.

Are institutions buying or selling PRLB?

In Q1 2026, 83 institutions opened or increased positions in PROTO LABS INC while 56 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on PRLB?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for PROTO LABS INC.

How many hedge funds hold PRLB?

141 institutional investors report holding PROTO LABS INC (PRLB) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into PRLB?

As of Q1 2026, tracked institutions in PROTO LABS INC show 83 buyers versus 56 sellers — net inflows.

Are Congress members and hedge funds both buying PRLB?

Yes — in the latest quarter, 1 members of Congress and 83 institutional investors bought PROTO LABS INC. HoldingsIntel cross-checks STOCK Act disclosures against 13F filings to surface these overlaps.

PROTO LABS INC

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

141

Holders

Avg rating(29 Elite)

$962.2M

Total Value

60% (149)

Fund Consensus

83 buying - 56 selling

Smart Money Verdict

View all

Held by 141 funds

29 elite

Who's Trading

Activist

Dimensional Fund Advisors LP4.8%Jul 14, 2026

InsiderWSWEHRWEIN SVENSell $115KJun 2, 2026

InsiderWSWEHRWEIN SVENSell $39KJun 2, 2026

ActivistDGDISCIPLINED GROWTH INVESTORS INC /MN10.5%May 15, 2026

InsiderKRKenison Michael R.Exercise 100 shMay 7, 2026

Congress

Donald J. TrumpBuy $1,001 - $15,000Mar 11, 2025

Congress

Donald J. TrumpBuy $1,001 - $15,000Feb 24, 2025

Congress

Donald J. TrumpBuy $1,001 - $15,000Feb 4, 2025

Congress

Donald J. TrumpBuy $1,001 - $15,000Jan 30, 2025

View all insider trades View all activist filings View all congressional trades

13F: Mar 31, 2026Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	3.7M(+1.6%)	$209.7M	0.0%	+87.77%	31
VPVANGUARD PORTFOLIO MANAGEMENT LLC	New	1.5M	$87.7M	0.0%	+20.08%	41
DIMENSIONAL FUND ADVISORS LP	Decreased	1.3M(-0.3%)	$72.5M	0.0%	+127.54%	0
STATE STREET CORP	Increased	1.1M(+0.3%)	$62.3M	0.0%	+90.81%	29
VAVANGUARD CAPITAL MANAGEMENT LLC	New	1M	$59.3M	0.0%	+20.08%	41
GEODE CAPITAL MANAGEMENT, LLC	Increased	580,201(+3.9%)	$33.1M	0.0%	-15.65%	30
RENAISSANCE TECHNOLOGIES LLC	Increased	520,251(+5.4%)	$29.7M	0.0%	+112.10%	30
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Increased	463,780(+0.7%)	$26.4M	0.0%	+96.65%	29
FMR LLC	Increased	422,356(+245.9%)	$24.1M	0.0%	+32.21%	46
PRUDENTIAL FINANCIAL INC	Increased	400,241(+118.9%)	$22.8M	0.0%	+32.84%	46
DRIEHAUS CAPITAL MANAGEMENT LLC	Decreased	369,136(-3.4%)	$21M	0.2%	+44.10%	0
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	360,203(-0.8%)	$20.5M	0.0%	+3.99%	0
Nuveen, LLC	Decreased	316,939(-2.7%)	$18.1M	0.0%	+70.68%	0
MORGAN STANLEY	Decreased	293,581(-3.9%)	$16.7M	0.0%	+140.67%	0
NORTHERN TRUST CORP	Increased	266,951(+4.2%)	$15.2M	0.0%	-18.40%	29
DED. E. Shaw & Co., Inc.	Increased	225,651(+6.0%)	$12.9M	0.0%	+82.52%	30
NORDEA INVESTMENT MANAGEMENT AB	Decreased	214,381(-4.5%)	$12M	0.0%	+110.37%	0
JUPITER ASSET MANAGEMENT LTD	Unchanged	194,832	$11.1M	0.1%	+136.29%	0
PANAGORA ASSET MANAGEMENT INC	Decreased	174,698(-0.5%)	$10M	0.0%	+84.03%	0
UBS Group AG	Decreased	168,750(-3.8%)	$9.6M	0.0%	+104.74%	0