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 Q1 2017?

181 institutional investors reported PRLB - Proto Labs Inc - Common Stock for Q1 2017. Use the holders table for investor-level position and value details.

Proto Labs Inc - Common Stock (PRLB)

CUSIP: 743713109

Q1 2017 13F Holders as of 31 Mar 2017

Type / Class: Equity / Common Stock
Shares outstanding: 23,784,333
Total 13F shares: 27,342,585
Share change: +1,795,274
Total reported value: $1,397,916,435
Put/Call ratio: 82%
Price per share: $51.10
Number of holders: 181
Value change: +$91,569,737
Number of buys: 90
Number of sells: 87

Security key

743713109

Report period

Q1 2017

Institutions

181

Top holders

PRLB full security history Newer quarter: Q2 2017 Previous quarter: Q4 2016 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: Q2 2017 Previous quarter: Q4 2016

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

31 Dec 2016

13F Lead comparable stake: 16%

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
BROWN CAPITAL MANAGEMENT LLC	13F Company 13F	16%	$189,705,000 3,694,345 shares	—	31 Dec 2016
VANGUARD GROUP INC	13F Company 13F	8.5%	$103,504,000 2,015,671 shares	—	31 Dec 2016
RIVERBRIDGE PARTNERS LLC	13F Company 13F	8.4%	$102,542,000 1,996,928 shares	—	31 Dec 2016
BlackRock Fund Advisors	13F Company 13F	7.9%	$96,557,000 1,880,371 shares	—	31 Dec 2016
TimesSquare Capital Management, LLC	13F Company 13F	6.5%	$79,487,000 1,547,950 shares	—	31 Dec 2016
JANUS HENDERSON INVESTORS US LLC	13F Company 13F	5.4%	$65,819,000 1,281,770 shares	—	31 Dec 2016
ArrowMark Colorado Holdings LLC	13F Company 13F	4.9%	$59,799,000 1,164,532 shares	—	31 Dec 2016
JPMORGAN CHASE & CO	13F Company 13F	4.6%	$56,677,000 1,103,728 shares	—	31 Dec 2016
DISCIPLINED GROWTH INVESTORS INC /MN	13F Company 13F	4.1%	$49,840,000 970,600 shares	—	31 Dec 2016
NEW YORK STATE COMMON RETIREMENT FUND	13F Company 13F	3.1%	$37,262,000 725,653 shares	—	31 Dec 2016
BlackRock Institutional Trust Company, N.A.	13F Company 13F	2.8%	$33,935,000 660,855 shares	—	31 Dec 2016
Stephens Investment Management Group LLC	13F Company 13F	2.6%	$31,559,000 614,578 shares	—	31 Dec 2016
Fiera Capital Corp	13F Company 13F	2.3%	$27,793,000 541,236 shares	—	31 Dec 2016
STATE STREET CORP	13F Company 13F	2.2%	$26,552,000 517,066 shares	—	31 Dec 2016
NORGES BANK	13F Company 13F	2%	$24,400,000 475,166 shares	—	31 Dec 2016
Capital Research Global Investors	13F Company 13F	2%	$23,965,000 466,700 shares	—	31 Dec 2016
Conestoga Capital Advisors, LLC	13F Company 13F	1.7%	$20,439,000 398,031 shares	—	31 Dec 2016
NORTHERN TRUST CORP	13F Company 13F	1.6%	$19,702,000 383,670 shares	—	31 Dec 2016
MAIRS & POWER INC	13F Company 13F	1.6%	$19,207,000 374,044 shares	—	31 Dec 2016
Bank of New York Mellon Corp	13F Company 13F	1.4%	$16,856,000 328,244 shares	—	31 Dec 2016
Artisan Partners Limited Partnership	13F Company 13F	1.3%	$16,463,000 320,597 shares	—	31 Dec 2016
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	1.3%	$15,759,000 306,896 shares	—	31 Dec 2016
ROYAL BANK OF CANADA	13F Company 13F	1.1%	$13,736,000 267,498 shares	—	31 Dec 2016
BANK OF AMERICA CORP /DE/	13F Company 13F	1.1%	$13,617,000 265,191 shares	—	31 Dec 2016
JANUS HENDERSON GROUP PLC	13F Company 13F	1.1%	$13,601,000 264,871 shares	—	31 Dec 2016
Quantum Capital Management, LLC / NJ	13F Company 13F	1.1%	$13,285,000 258,724 shares	—	31 Dec 2016
MANUFACTURERS LIFE INSURANCE COMPANY, THE	13F Company 13F	1%	$12,602,000 245,428 shares	—	31 Dec 2016
THRIVENT FINANCIAL FOR LUTHERANS	13F Company 13F	0.96%	$11,715,000 228,132 shares	—	31 Dec 2016
Crestwood Capital Management, L.P.	13F Company 13F	0.94%	$11,538,000 224,700 shares	—	31 Dec 2016
TIVERTON ASSET MANAGEMENT LLC	13F Company 13F	0.84%	$10,279,000 200,157 shares	—	31 Dec 2016
FRED ALGER MANAGEMENT, LLC	13F Company 13F	0.84%	$10,266,000 199,913 shares	—	31 Dec 2016
Nationwide Fund Advisors	13F Company 13F	0.84%	$10,250,000 199,605 shares	—	31 Dec 2016
BLAIR WILLIAM & CO/IL	13F Company 13F	0.77%	$9,357,000 182,224 shares	—	31 Dec 2016
PRINCIPAL FINANCIAL GROUP INC	13F Company 13F	0.75%	$9,157,000 178,333 shares	—	31 Dec 2016
ARK Investment Management LLC	13F Company 13F	0.74%	$9,055,000 176,335 shares	—	31 Dec 2016
GEODE CAPITAL MANAGEMENT, LLC	13F Company 13F	0.73%	$8,894,000 173,218 shares	—	31 Dec 2016
AMERIPRISE FINANCIAL INC	13F Company 13F	0.72%	$8,739,000 170,178 shares	—	31 Dec 2016
MORGAN STANLEY	13F Company 13F	0.56%	$6,807,000 132,536 shares	—	31 Dec 2016
BlackRock Investment Management, LLC	13F Company 13F	0.52%	$6,410,000 124,837 shares	—	31 Dec 2016
AMERICAN CAPITAL MANAGEMENT INC	13F Company 13F	0.51%	$6,244,000 121,589 shares	—	31 Dec 2016
Capital Investment Services of America, Inc.	13F Company 13F	0.5%	$6,105,000 118,897 shares	—	31 Dec 2016
GOLDMAN SACHS GROUP INC	13F Company 13F	0.49%	$5,933,000 115,539 shares	—	31 Dec 2016
Century Capital Management, LLC	13F Company 13F	0.47%	$5,769,000 112,352 shares	—	31 Dec 2016
WELLS FARGO & COMPANY/MN	13F Company 13F	0.47%	$5,730,000 111,578 shares	—	31 Dec 2016
WEATHERBIE CAPITAL, LLC	13F Company 13F	0.43%	$5,212,000 101,494 shares	—	31 Dec 2016
SEI INVESTMENTS CO	13F Company 13F	0.42%	$5,124,000 99,801 shares	—	31 Dec 2016
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F Company 13F	0.42%	$5,125,000 99,789 shares	—	31 Dec 2016
Granahan Investment Management, LLC	13F Company 13F	0.38%	$4,696,000 91,450 shares	—	31 Dec 2016
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	13F Company 13F	0.35%	$4,630,000 82,900 shares	—	31 Dec 2016
TIAA CREF INVESTMENT MANAGEMENT LLC	13F Company 13F	0.3%	$3,620,000 70,487 shares	—	31 Dec 2016

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 Q1 2017

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

Institutions

181

27,342,585

Rows loaded

181

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

Compare Q1 2017 vs Q4 2016 Across Filers

Q4 2016 holders

192

Q1 2017 holders

181

Holder diff

-11

Investor	Q4 2016 Shares	Q1 2017 Shares	Share Diff	Share Chg %	Q4 2016 Value $	Q1 2017 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.