What does CUSIP 743713109 represent in this 13F holders report?

CUSIP 743713109 is the security identifier for PRLB - Proto Labs Inc - Common Stock used to aggregate holder disclosures.

How many institutions held PRLB - Proto Labs Inc - Common Stock in Q3 2018?

257 institutional investors reported PRLB - Proto Labs Inc - Common Stock for Q3 2018. Use the holders table for investor-level position and value details.

Proto Labs Inc - Common Stock (PRLB)

CUSIP: 743713109

Q3 2018 13F Holders as of 30 Sep 2018

Type / Class: Equity / Common Stock
Shares outstanding: 23,784,333
Total 13F shares: 25,876,599
Share change: +28,901
Total reported value: $4,185,474,591
Put/Call ratio: 122%
Price per share: $161.75
Number of holders: 257
Value change: +$11,651,701
Number of buys: 123
Number of sells: 107

Security key

743713109

Report period

Q3 2018

Institutions

257

Top holders

PRLB full security history Newer quarter: Q4 2018 Previous quarter: Q2 2018 Proto Labs Inc SEC filings Proto Labs Inc company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 743713109

Newer quarter: Q4 2018 Previous quarter: Q2 2018

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Ownership snapshot

Top shareholders of PRLB - Proto Labs Inc - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with the largest verified stakes, then open the linked filing trail.

Lead holder

BROWN CAPITAL MANAGEMENT LLC

13D/G signal

—

Evidence rows

Latest as of

30 Jun 2018

13F Lead comparable stake: 16%

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
BROWN CAPITAL MANAGEMENT LLC	13F Company 13F	16%	$457,170,000 3,843,378 shares	—	30 Jun 2018
BlackRock Finance, Inc.	13F Company 13F	15%	$425,936,000 3,580,804 shares	—	30 Jun 2018
VANGUARD GROUP INC	13F Company 13F	11%	$300,363,000 2,525,123 shares	—	30 Jun 2018
RIVERBRIDGE PARTNERS LLC	13F Company 13F	7.3%	$206,148,000 1,733,068 shares	—	30 Jun 2018
JANUS HENDERSON GROUP PLC	13F Company 13F	4.6%	$131,288,000 1,103,727 shares	—	30 Jun 2018
DISCIPLINED GROWTH INVESTORS INC /MN	13F Company 13F	3.9%	$108,987,000 916,240 shares	—	30 Jun 2018
STATE STREET CORP	13F Company 13F	2.9%	$82,424,000 692,926 shares	—	30 Jun 2018
Conestoga Capital Advisors, LLC	13F Company 13F	2.5%	$72,040,000 605,631 shares	—	30 Jun 2018
Stephens Investment Management Group LLC	13F Company 13F	2.5%	$71,515,000 599,203 shares	—	30 Jun 2018
NEW YORK STATE COMMON RETIREMENT FUND	13F Company 13F	2.3%	$63,716,000 535,652 shares	—	30 Jun 2018
ArrowMark Colorado Holdings LLC	13F Company 13F	2.2%	$62,967,000 529,358 shares	—	30 Jun 2018
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	1.8%	$51,875,000 436,103 shares	—	30 Jun 2018
JPMORGAN CHASE & CO	13F Company 13F	1.8%	$51,608,000 433,867 shares	—	30 Jun 2018
NORTHERN TRUST CORP	13F Company 13F	1.7%	$48,583,000 408,438 shares	—	30 Jun 2018
Handelsbanken Fonder AB	13F Company 13F	1.7%	$48,203,000 405,236 shares	—	30 Jun 2018
NORGES BANK	13F Company 13F	1.5%	$42,667,000 358,698 shares	—	30 Jun 2018
Bank of New York Mellon Corp	13F Company 13F	1.4%	$40,378,000 339,447 shares	—	30 Jun 2018
LORD, ABBETT & CO. LLC	13F Company 13F	1.3%	$37,071,000 311,650 shares	—	30 Jun 2018
MAIRS & POWER INC	13F Company 13F	1.3%	$36,491,000 306,773 shares	—	30 Jun 2018
LOOMIS SAYLES & CO L P	13F Company 13F	1.1%	$30,524,000 256,612 shares	—	30 Jun 2018
GEODE CAPITAL MANAGEMENT, LLC	13F Company 13F	1%	$28,210,000 237,163 shares	—	30 Jun 2018
FRED ALGER MANAGEMENT, LLC	13F Company 13F	0.96%	$27,210,000 228,751 shares	—	30 Jun 2018
ROYAL BANK OF CANADA	13F Company 13F	0.93%	$26,445,000 222,318 shares	—	30 Jun 2018
AMERIPRISE FINANCIAL INC	13F Company 13F	0.93%	$26,435,000 222,243 shares	—	30 Jun 2018
VICTORY CAPITAL MANAGEMENT INC	13F Company 13F	0.9%	$25,489,000 214,286 shares	—	30 Jun 2018
PRINCIPAL FINANCIAL GROUP INC	13F Company 13F	0.87%	$24,643,000 207,169 shares	—	30 Jun 2018
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO	13F Company 13F	0.82%	$23,322,000 196,067 shares	—	30 Jun 2018
Matarin Capital Management, LLC	13F Company 13F	0.68%	$19,111,816 160,671 shares	—	30 Jun 2018
BLAIR WILLIAM & CO/IL	13F Company 13F	0.65%	$18,490,000 155,443 shares	—	30 Jun 2018
MORGAN STANLEY	13F Company 13F	0.59%	$16,564,000 139,241 shares	—	30 Jun 2018
BANK OF AMERICA CORP /DE/	13F Company 13F	0.58%	$16,374,000 137,654 shares	—	30 Jun 2018
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F Company 13F	0.57%	$16,164,000 135,882 shares	—	30 Jun 2018
AMERICAN CAPITAL MANAGEMENT INC	13F Company 13F	0.57%	$16,003,000 134,539 shares	—	30 Jun 2018
FEDERATED HERMES, INC.	13F Company 13F	0.49%	$13,782,000 115,868 shares	—	30 Jun 2018
DEUTSCHE BANK AG\	13F Company 13F	0.41%	$11,524,000 96,884 shares	—	30 Jun 2018
Capital Investment Services of America, Inc.	13F Company 13F	0.4%	$11,456,000 96,312 shares	—	30 Jun 2018
FIRST TRUST ADVISORS LP	13F Company 13F	0.36%	$10,172,000 85,511 shares	—	30 Jun 2018
GOLDMAN SACHS GROUP INC	13F Company 13F	0.35%	$9,956,000 83,704 shares	—	30 Jun 2018
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	13F Company 13F	0.33%	$9,454,000 79,482 shares	—	30 Jun 2018
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F Company 13F	0.33%	$9,365,000 78,732 shares	—	30 Jun 2018
ARK Investment Management LLC	13F Company 13F	0.33%	$9,334,000 78,469 shares	—	30 Jun 2018
GS Investments, Inc.	13F Company 13F	0.32%	$8,945,635 75,205 shares	—	30 Jun 2018
Polar Capital LLP	13F Company 13F	0.31%	$8,694,000 73,086 shares	—	30 Jun 2018
PICTON MAHONEY ASSET MANAGEMENT	13F Company 13F	0.29%	$8,067,000 67,800 shares	—	30 Jun 2018
Invesco Ltd.	13F Company 13F	0.28%	$7,796,000 65,543 shares	—	30 Jun 2018
Investeringsforvaltning Handelsinvest	13F Individual 13F	0.27%	$7,611,000 63,990 shares	—	30 Jun 2018
SCOUT INVESTMENTS, INC.	13F Company 13F	0.27%	$7,604,000 63,924 shares	—	30 Jun 2018
Motley Fool Wealth Management, LLC	13F Company 13F	0.27%	$7,501,000 63,056 shares	—	30 Jun 2018
OPPENHEIMER ASSET MANAGEMENT INC.	13F Company 13F	0.26%	$7,317,000 61,512 shares	—	30 Jun 2018
RHUMBLINE ADVISERS	13F Company 13F	0.26%	$7,282,000 61,215 shares	—	30 Jun 2018

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2018

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

257

25,876,599

Rows loaded

257

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q3 2018 vs Q2 2018 Across Filers

Q2 2018 holders

243

Q3 2018 holders

257

Holder diff

Investor	Q2 2018 Shares	Q3 2018 Shares	Share Diff	Share Chg %	Q2 2018 Value $	Q3 2018 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.