Proto Labs Ownership | Who Owns Proto Labs?

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Proto Labs Ownership Summary

Proto Labs is owned by 92.10% institutional investors, 1.27% insiders, and 6.63% retail investors. Blackrock is the largest institutional shareholder, holding 16.87% of PRLB shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 6.07% of its assets in Proto Labs shares.

PRLB Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Proto Labs	92.10%	1.27%	6.63%
Sector	Industrials Stocks	49.60%	15.69%	34.70%
Idea	3D Printing Stocks List	38.10%	6.06%	55.85%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	4.32M	16.87%	$133.53M
Blackrock funding, inc. /de	3.68M	15.48%	$209.71M
Vanguard group	2.67M	11.16%	$134.88M
Disciplined growth investors inc /mn	2.50M	10.51%	$142.40M
Dimensional fund advisors lp	1.27M	5.36%	$72.55M
State street	1.09M	4.60%	$62.27M
American capital management	627.71K	2.64%	$35.79M
Geode capital management	580.20K	2.44%	$33.09M
Renaissance	520.25K	2.19%	$29.66M
Rubric capital management lp	486.40K	2.05%	$27.73M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
S squared	296.10K	6.39%	$16.88M
Disciplined growth investors inc /mn	2.50M	2.91%	$142.40M
American capital management	627.71K	1.92%	$35.79M
Archon capital management	48.50K	1.56%	$2.77M
Gagnon securities	110.89K	1.46%	$6.32M
Aimz investment advisors	38.73K	0.68%	$2.21M
Hussman strategic advisors	52.50K	0.65%	$2.99M
Bastion asset management	28.27K	0.49%	$1.60M
Eam investors	65.82K	0.43%	$3.75M
Rice hall james & associates	113.59K	0.36%	$6.48M

Top Buyers

Holder	Shares	% Assets	Change
Fmr	422.36K	0.00%	300.26K
Prudential financial	400.24K	0.03%	217.41K
Vanguard fiduciary trust	153.58K	0.00%	153.58K
Qube research	148.62K	0.01%	133.67K
Marshall wace, llp	68.36K	0.00%	68.36K

Top Sellers

Holder	Shares	% Assets	Change
Wellington management group llp	-	-	-711.74K
Rubric capital management lp	486.40K	0.29%	-636.94K
Disciplined growth investors inc /mn	2.50M	2.91%	-176.37K
Hotchkis & wiley capital management	-	-	-165.52K
Meros investment management, lp	-	-	-144.54K

New Positions

Holder	Shares	% Assets	Change	Value
Vanguard fiduciary trust	153.58K	0.00%	153.58K	$8.76M
Marshall wace, llp	68.36K	0.00%	68.36K	$3.90M
Eam investors	65.82K	0.43%	65.82K	$3.75M
Norges bank	49.80K	0.00%	49.80K	$1.95M
Archon capital management	48.50K	1.56%	48.50K	$2.77M

Sold Out

Holder	Change
Caitong asset management	-1.00
Clearstead advisors	-2.00
Ancora advisors	-5.00
Mendota financial group	-5.00
Flagship harbor advisors	-6.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	258	7.95%	21,883,604	-1.00%	92	1.08%	125	-	78	8.33%
Dec 31, 2025	123	-42.52%	9,575,015	-55.94%	40	0.49%	59	-43.27%	36	-47.83%
Sep 30, 2025	113	-41.75%	11,411,341	-44.28%	47	0.65%	46	-51.58%	41	-41.43%
Jun 30, 2025	199	1.02%	21,605,085	-1.00%	89	1.10%	94	9.30%	74	5.71%
Mar 31, 2025	7	-96.62%	314,698	-98.53%	1	0.02%	4	-95.65%	2	-97.18%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Small-Cap ETF	1.44M	6.07%	348.00
Vanguard US Total Market Shares ETF	811.88K	3.35%	-
Vanguard Total Stock Mkt Idx Inv	751.60K	3.16%	-
Disciplined Growth - Mid Cap Growth	670.44K	2.82%	-74.38K
iShares Russell 2000 ETF	559.83K	2.35%	4.70K
Vanguard Small Cap Index	546.37K	2.30%	-2.32K
Pacer US Small Cap Cash Cows 100 ETF	551.39K	2.25%	-1.87K
First Trust RBA Amer Indl RenaisTM ETF	538.28K	2.22%	-
Vanguard Small Cap Value Index Inv	351.14K	1.48%	1.75K
Vanguard Institutional Extnd Mkt Idx Tr	266.69K	1.12%	2.74K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jun 02, 2026	WEHRWEIN SVEN	-	Sell	$39.19K
Jun 02, 2026	WEHRWEIN SVEN	-	Sell	$115.36K
May 12, 2026	Kenison Michael R.	Chief Operations Officer	Sell	$288.39K
May 11, 2026	Kenison Michael R.	Chief Operations Officer	Sell	$522.25K
May 12, 2026	Kenison Michael R.	Chief Operations Officer	Sell	$109.01K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	8
2026 Q1	-	2
2025 Q4	-	1
2025 Q3	2	-
2025 Q2	-	-

PRLB Ownership FAQ

Who owns the most shares of Proto Labs?

Proto Labs’s largest shareholders are Blackrock (4.32M shares, 16.87%), Blackrock funding, inc. /de (3.68M shares, 15.48%), and Vanguard group (2.67M shares, 11.16%). Together, they hold 43.51% of Proto Labs’s total shares outstanding.

Does Blackrock own Proto Labs?

Yes, BlackRock owns 16.87% of Proto Labs, totaling 4.32M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 133.53M$. In the last quarter, BlackRock decreased its holdings by -96.148K shares, a -2.18% change.

Who is Proto Labs’s biggest shareholder by percentage of total assets invested?

S squared is Proto Labs’s biggest shareholder by percentage of total assets invested, with 6.39% of its assets in 296.1K Proto Labs shares, valued at 16.88M$.

Who is the top mutual fund holder of Proto Labs shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of Proto Labs shares, with 6.07% of its total shares outstanding invested in 1.44M Proto Labs shares.

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