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PROTO LABS INC COM
PROTO LABS INC COM. Institutional holdings reported to the SEC.

Institutional Holders (2017Q1)
Portfolio Summary: 203 Institutional holders with a total value of $1,411,319,435.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 BROWN CAPITAL MANAGEMENT LLC 3,801,528 194,258,000 13.76%
2 BlackRock Finance, Inc. 2,905,155 148,453,000 10.52%
3 VANGUARD GROUP INC 2,119,327 108,298,000 7.67%
4 RIVERBRIDGE PARTNERS LLC 2,021,642 103,306,000 7.32%
5 JANUS HENDERSON INVESTORS US LLC 1,278,625 65,338,000 4.63%
6 ArrowMark Colorado Holdings LLC 1,162,569 59,407,000 4.21%
7 TimesSquare Capital Management, LLC 1,131,625 57,826,000 4.10%
8 JPMORGAN CHASE & CO 1,048,698 53,588,000 3.80%
9 DISCIPLINED GROWTH INVESTORS INC /MN 965,000 49,311,000 3.49%
10 Stephens Investment Management Group LLC 706,528 36,104,000 2.56%
11 NEW YORK STATE COMMON RETIREMENT FUND 633,335 32,363,000 2.29%
12 STATE STREET CORP 566,187 28,931,000 2.05%
13 Capital Research Global Investors 466,700 23,848,000 1.69%
14 Conestoga Capital Advisors, LLC 420,533 21,489,000 1.52%
15 MAIRS & POWER INC 412,372 21,072,000 1.49%
16 NORTHERN TRUST CORP 387,819 19,817,000 1.40%
17 NORGES BANK 380,427 19,440,000 1.38%
18 DIMENSIONAL FUND ADVISORS LP 351,431 17,958,000 1.27%
19 Bank of New York Mellon Corp 345,561 17,657,000 1.25%
20 ROYAL BANK OF CANADA 271,312 13,864,000 0.98%
21 JANUS HENDERSON GROUP PLC 254,469 13,003,000 0.92%
22 BANK OF AMERICA CORP /DE/ 242,463 12,389,000 0.88%
23 THRIVENT FINANCIAL FOR LUTHERANS 228,912 11,697,000 0.83%
24 Nationwide Fund Advisors 204,736 10,462,000 0.74%
25 TIVERTON ASSET MANAGEMENT LLC 200,157 10,228,000 0.72%
26 GEODE CAPITAL MANAGEMENT, LLC 192,143 9,818,000 0.70%
27 Quantum Capital Management, LLC / NJ 189,539 9,685,000 0.69%
28 PRINCIPAL FINANCIAL GROUP INC 185,502 9,479,000 0.67%
29 BLAIR WILLIAM & CO/IL 174,568 9,444,000 0.67%
30 MORGAN STANLEY 180,729 9,235,000 0.65%
31 ARK INVESTMENT MANAGEMENT LLC 179,870 9,191,000 0.65%
32 AMERIPRISE FINANCIAL INC 174,990 8,942,000 0.63%
33 LAZARD ASSET MANAGEMENT LLC 164,873 8,425,000 0.60%
34 Capital Investment Services of America, Inc. 143,214 7,318,000 0.52%
35 MILLENNIUM MANAGEMENT LLC 140,586 7,184,000 0.51%
36 Fiera Capital Corp 135,936 6,947,000 0.49%
37 AMERICAN CAPITAL MANAGEMENT INC 128,536 6,568,000 0.47%
38 Crestwood Capital Management, L.P. 108,000 5,519,000 0.39%
39 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 104,131 5,322,000 0.38%
40 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 82,900 4,236,000 0.30%
41 SEI INVESTMENTS CO 79,726 4,074,000 0.29%
42 GOLDMAN SACHS GROUP INC 70,003 3,577,000 0.25%
43 TIAA CREF INVESTMENT MANAGEMENT LLC 67,170 3,432,000 0.24%
44 FRED ALGER MANAGEMENT, LLC 66,132 3,379,000 0.24%
45 Polar Capital LLP 65,423 3,340,000 0.24%
46 SUSQUEHANNA INTERNATIONAL GROUP, LLP 61,300 3,132,000 0.22% Call
47 HANDELSBANKEN FONDER AB 60,000 3,066,000 0.22%
48 OPPENHEIMER ASSET MANAGEMENT INC. 59,678 3,050,000 0.22%
49 DEUTSCHE BANK AG\ 59,659 3,047,000 0.22%
50 WELLS FARGO & COMPANY/MN 56,048 2,864,000 0.20%
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.