Proto Labs PRLB Institutional Ownership

NYSE PRLB

$79.65 -1.24 (-1.53%)

As of: Sep 10, 2026 · 3:51 PM EDT

Institutions by Trading Activity

278 Institutions

Increased 147 52.9%

Unchanged 41 14.7%

Reduced 90 32.4%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

95.20%

▲+1.17 pp QoQ

Shares Held by Institutions

22.82Mn

of 23.97Mn outstanding

▲+3.90% QoQ

Shares Outstanding

23.97Mn

1.15Mn held outside 13F filers

Institutional Investors

278

filed 13F for Jun 2026

▲+17 vs prior quarter

Net Shares Added (QoQ)

+856.69K

accumulated since last quarter

Value of Holdings

$1.86Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Proto Labs Inc (NYSE:PRLB) is held by 278 institutional investors per 13F filings through June 2026.

These investors collectively held 95.2% of Proto Labs's outstanding shares in June 2026, up from 94.0% in March 2026.
They increased total shares held in Proto Labs by 3.9% from last quarter, and the number of investors in PRLB increased 38.31% annually.
Of these 278 holders, 147 added to their stakes in Proto Labs, 90 trimmed positions, and 41 made no changes.
The aggregate institutional position in Proto Labs amounted to 22.82Mn shares as of June 2026, up by 856.69K shares quarter on quarter, and up 1.56Mn shares year over year.
As of June 30, 2026, the biggest holder of Proto Labs is BlackRock, Inc. at 3.9Mn shares, representing 16.26% of shares outstanding.
The largest buyers of Proto Labs for the quarter ending June 2026 were Sixth Street Partners Management Company, L.P. (354.19K), Goldman Sachs Group Inc (262.24K), BlackRock, Inc. (218.35K), Jpmorgan Chase & Co (137.14K), FIRST TRUST ADVISORS LP (131.92K).
The biggest sellers of Proto Labs for the quarter ending June 2026 included Rubric Capital Management LP (377.71K), S SQUARED TECHNOLOGY, LLC (304.09K), DIMENSIONAL FUND ADVISORS LP (120.05K), DISCIPLINED GROWTH INVESTORS INC /MN (116.84K), LAZARD ASSET MANAGEMENT LLC (92.25K).
Per Business Quant data, the top 10 holders of Proto Labs for the quarter ending June 2026 are BlackRock, Inc. (3.9Mn), DISCIPLINED GROWTH INVESTORS INC /MN (2.38Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (1.6Mn), DIMENSIONAL FUND ADVISORS LP (1.15Mn), State Street Corp (1.14Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.05Mn), AMERICAN CAPITAL MANAGEMENT INC (619.84K), GEODE CAPITAL MANAGEMENT, LLC (614.03K), RENAISSANCE TECHNOLOGIES LLC (469.25K), Prudential Financial Inc (457.81K).

Form 13F Holdings

278 Institutional Holders

Report period 30 Jun, 2026

Total shares held 22.82Mn

Of outstanding 95.20%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	3,896,222	16.26%	▲218,347	+5.94%	$317.58Mn
2	DISCIPLINED GROWTH INVESTORS INC /MN	0001050442	2,380,514	9.93%	▼116,841	-4.68%	$194.04Mn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,599,765	6.67%	▲61,235	+3.98%	$130.40Mn
4	DIMENSIONAL FUND ADVISORS LP	0000354204	1,152,305	4.81%	▼120,051	-9.44%	$93.92Mn
5	State Street Corp	0000093751	1,138,462	4.75%	▲46,462	+4.25%	$92.80Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,054,623	4.40%	▲14,882	+1.43%	$85.96Mn
7	AMERICAN CAPITAL MANAGEMENT INC	0001320168	619,845	2.59%	▼7,860	-1.25%	$50.52Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	614,028	2.56%	▲33,827	+5.83%	$50.06Mn
9	RENAISSANCE TECHNOLOGIES LLC	0001037389	469,251	1.96%	▼51,000	-9.80%	$38.25Mn
10	Prudential Financial Inc	0001137774	457,810	1.91%	▲57,569	+14.38%	$37.32Mn
11	FMR LLC	0000315066	442,659	1.85%	▲20,303	+4.81%	$36.08Mn
12	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	440,816	1.84%	▼22,964	-4.95%	$35.93Mn
13	Nuveen, LLC	0001871926	420,059	1.75%	▲103,120	+32.54%	$34.24Mn
14	Goldman Sachs Group Inc	0000886982	403,179	1.68%	▲262,236	+186.06%	$32.86Mn
15	DRIEHAUS CAPITAL MANAGEMENT LLC	0000938206	370,151	1.54%	▲1,015	+0.27%	$30.17Mn
16	Sixth Street Partners Management Company, L.P.	0001812095	354,188	1.48%	▲354,188	0.00%	$28.87Mn
16	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	354,188	1.48%	▼6,015	-1.67%	$28.87Mn
17	Morgan Stanley	0000895421	314,778	1.31%	▲21,197	+7.22%	$25.66Mn
18	S SQUARED TECHNOLOGY, LLC	0001322924	288,120	1.20%	▼304,086	-51.35%	$23.48Mn
19	Northern Trust Corp	0000073124	284,562	1.19%	▲17,611	+6.60%	$23.19Mn

Showing 1 to 20 of 278 holders