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 2015?

177 institutional investors reported PRLB - Proto Labs Inc - Common Stock for Q1 2015. Use the holders table for investor-level position and value details.

Proto Labs Inc - Common Stock (PRLB)

CUSIP: 743713109

Q1 2015 13F Holders as of 31 Mar 2015

Type / Class: Equity / Common Stock
Shares outstanding: 23,799,118
Total 13F shares: 25,433,237
Share change: -201,308
Total reported value: $1,780,345,890
Put/Call ratio: 243%
Price per share: $70.00
Number of holders: 177
Value change: -$11,741,146
Number of buys: 93
Number of sells: 78

Quarterly Holders Quick Answers

What is CUSIP 743713109?
CUSIP 743713109 identifies PRLB - Proto Labs Inc - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2015
Previous quarter: Q4 2014

Recent filing periods for CUSIP 743713109:

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

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

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
WELLS FARGO & COMPANY/MN	13F	Company	8.2%	1,956,211	$131,380,000	—	31 Dec 2014	13F
RIVERBRIDGE PARTNERS LLC	13F	Company	7.2%	1,710,971	$114,909,000	—	31 Dec 2014	13F
BROWN CAPITAL MANAGEMENT LLC	13F	Company	6.8%	1,623,366	$109,025,000	—	31 Dec 2014	13F
KORNITZER CAPITAL MANAGEMENT INC /KS	13F	Company	6%	1,439,648	$96,687,000	—	31 Dec 2014	13F
FRANKLIN RESOURCES INC	13F	Company	5.9%	1,402,200	$94,172,000	—	31 Dec 2014	13F
VANGUARD GROUP INC	13F	Company	5.6%	1,335,941	$89,722,000	—	31 Dec 2014	13F
Ranger Investment Management, L.P.	13F	Company	3.4%	820,470	$55,103,000	—	31 Dec 2014	13F
WASATCH ADVISORS LP	13F	Company	3%	722,208	$48,503,000	—	31 Dec 2014	13F
GILDER GAGNON HOWE & CO LLC	13F	Company	2.9%	701,628	$47,121,000	—	31 Dec 2014	13F
GW&K Investment Management, LLC	13F	Company	2.6%	612,321	$41,123,000	—	31 Dec 2014	13F
Stephens Investment Management Group LLC	13F	Company	2.6%	611,010	$41,035,000	—	31 Dec 2014	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	2.5%	585,719	$39,337,000	—	31 Dec 2014	13F
Conestoga Capital Advisors, LLC	13F	Company	2.4%	581,970	$39,085,000	—	31 Dec 2014	13F
BlackRock Fund Advisors	13F	Company	2.4%	575,613	$38,658,000	—	31 Dec 2014	13F
JANUS HENDERSON INVESTORS US LLC	13F	Company	2.3%	543,866	$36,526,000	—	31 Dec 2014	13F
EAGLE ASSET MANAGEMENT INC	13F	Company	2%	486,989	$32,706,000	—	31 Dec 2014	13F
NORTHERN TRUST CORP	13F	Company	1.9%	462,205	$31,042,000	—	31 Dec 2014	13F
ArrowMark Colorado Holdings LLC	13F	Company	1.8%	417,702	$28,053,000	—	31 Dec 2014	13F
BLAIR WILLIAM & CO/IL	13F	Company	1.7%	414,686	$27,850,000	—	31 Dec 2014	13F
Crestwood Capital Management, L.P.	13F	Company	1.7%	397,100	$26,669,000	—	31 Dec 2014	13F
STATE STREET CORP	13F	Company	1.5%	356,591	$23,945,000	—	31 Dec 2014	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	1.5%	348,382	$23,397,000	—	31 Dec 2014	13F
TAMRO Capital Partners LLC	13F	Company	1.4%	329,758	$22,147,000	—	31 Dec 2014	13F
TEACHERS ADVISORS, LLC	13F	Company	1.3%	312,820	$21,009,000	—	31 Dec 2014	13F
ROYAL BANK OF CANADA	13F	Company	1.3%	308,154	$20,696,000	—	31 Dec 2014	13F
Apex Capital Management	13F	Company	1.2%	291,491	$19,577,000	—	31 Dec 2014	13F
LOOMIS SAYLES & CO L P	13F	Company	1.1%	263,443	$17,693,000	—	31 Dec 2014	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	1.1%	255,641	$17,169,000	—	31 Dec 2014	13F
THORNBURG INVESTMENT MANAGEMENT INC	13F	Company	1%	248,245	$16,672,000	—	31 Dec 2014	13F
Summit Creek Advisors LLC	13F	Company	1%	246,355	$16,545,000	—	31 Dec 2014	13F
RUSSELL FRANK CO/	13F	Company	1%	246,670	$16,464,000	—	31 Dec 2014	13F
MANAGED ACCOUNT ADVISORS LLC	13F	Company	0.91%	217,518	$14,609,000	—	31 Dec 2014	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.89%	211,228	$14,186,000	—	31 Dec 2014	13F
Calamos Advisors LLC	13F	Company	0.87%	206,259	$13,852,000	—	31 Dec 2014	13F
Artisan Partners Limited Partnership	13F	Company	0.87%	206,114	$13,843,000	—	31 Dec 2014	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	0.73%	172,915	$11,613,000	—	31 Dec 2014	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.71%	168,285	$11,302,000	—	31 Dec 2014	13F
THRIVENT FINANCIAL FOR LUTHERANS	13F	Company	0.71%	168,062	$11,287,000	—	31 Dec 2014	13F
TCW GROUP INC	13F	Company	0.69%	163,060	$10,951,000	—	31 Dec 2014	13F
Bank of New York Mellon Corp	13F	Company	0.67%	159,983	$10,744,000	—	31 Dec 2014	13F
Capital Investment Services of America, Inc.	13F	Company	0.64%	151,170	$10,153,000	—	31 Dec 2014	13F
OppenheimerFunds, Inc.	13F	Company	0.63%	150,059	$10,078,000	—	31 Dec 2014	13F
TIVERTON ASSET MANAGEMENT LLC	13F	Company	0.63%	150,000	$10,075,000	—	31 Dec 2014	13F
Nationwide Fund Advisors	13F	Company	0.61%	144,590	$9,711,000	—	31 Dec 2014	13F
DEUTSCHE BANK AG\	13F	Company	0.6%	141,750	$9,518,000	—	31 Dec 2014	13F
MANUFACTURERS LIFE INSURANCE COMPANY, THE	13F	Company	0.58%	138,893	$9,328,000	—	31 Dec 2014	13F
EMERALD ADVISERS, LLC	13F	Company	0.58%	138,537	$9,304,000	—	31 Dec 2014	13F
JANUS HENDERSON GROUP PLC	13F	Company	0.56%	132,449	$8,895,000	—	31 Dec 2014	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.53%	126,529	$8,497,000	—	31 Dec 2014	13F
Nichols Asset Management LLC	13F	Company	0.52%	124,183	$8,340,000	—	31 Dec 2014	13F

Institutional Holders of Proto Labs Inc - Common Stock (PRLB) as of Q1 2015

As of 31 Mar 2015, Proto Labs Inc - Common Stock (PRLB) was held by 177 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 25,433,237 shares. The largest 10 holders included BROWN CAPITAL MANAGEMENT LLC, RIVERBRIDGE PARTNERS LLC, WELLS FARGO & COMPANY/MN, VANGUARD GROUP INC, KORNITZER CAPITAL MANAGEMENT INC /KS, JANUS CAPITAL MANAGEMENT LLC, Ranger Investment Management, L.P., WASATCH ADVISORS INC, FRANKLIN RESOURCES INC, and GANNETT WELSH & KOTLER. This page lists 177 institutional shareholders reporting positions in this security for the Q1 2015 filing period.

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

Compare Q1 2015 vs Q4 2014 Across Filers

Q4 2014 holders

174

Q1 2015 holders

177

Holder diff

Investor	Q4 2014 Shares	Q1 2015 Shares	Share Diff	Share Chg %	Q4 2014 Value $	Q1 2015 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.