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

Institutional Holders (2016Q2)
Portfolio Summary: 238 Institutional holders with a total value of $1,719,387,988.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 BROWN CAPITAL MANAGEMENT LLC 2,758,736 158,793,000 9.24%
2 VANGUARD GROUP INC 1,864,255 107,307,000 6.24%
3 RIVERBRIDGE PARTNERS LLC 1,752,146 100,854,000 5.87%
4 BlackRock Fund Advisors 1,517,705 87,359,000 5.08%
5 JANUS HENDERSON INVESTORS US LLC 1,152,356 66,330,000 3.86%
6 ABDIEL CAPITAL ADVISORS, LLC 835,731 48,105,000 2.80%
7 WELLS FARGO & COMPANY/MN 783,251 45,084,000 2.62%
8 ArrowMark Colorado Holdings LLC 753,136 43,351,000 2.52%
9 WASATCH ADVISORS LP 711,841 40,974,000 2.38%
10 Bank of New York Mellon Corp 711,407 40,947,000 2.38%
11 TimesSquare Capital Management, LLC 699,500 40,263,000 2.34%
12 GW&K Investment Management, LLC 680,415 39,165,000 2.28%
13 Fiera Capital Corp 672,889 38,731,000 2.25%
14 BlackRock Institutional Trust Company, N.A. 597,487 34,391,000 2.00%
15 NEW YORK STATE COMMON RETIREMENT FUND 586,615 33,766,000 1.96%
16 Stephens Investment Management Group LLC 574,134 33,047,000 1.92%
17 NORTHERN TRUST CORP 524,954 30,216,000 1.76%
18 Conestoga Capital Advisors, LLC 524,581 30,195,000 1.76%
19 BLAIR WILLIAM & CO/IL 507,861 29,232,000 1.70%
20 PRICE T ROWE ASSOCIATES INC /MD/ 506,466 29,152,000 1.70%
21 STATE STREET CORP 454,671 26,170,000 1.52%
22 KORNITZER CAPITAL MANAGEMENT INC /KS 403,810 23,243,000 1.35%
23 Crestwood Capital Management, L.P. 401,958 23,137,000 1.35%
24 GOLDMAN SACHS GROUP INC 361,800 20,825,000 1.21% Put
25 NORGES BANK 361,536 20,810,000 1.21%
26 Artisan Partners Limited Partnership 356,232 20,505,000 1.19%
27 EAGLE ASSET MANAGEMENT INC 349,298 20,105,000 1.17%
28 MAIRS & POWER INC 315,079 18,136,000 1.05%
29 DIMENSIONAL FUND ADVISORS LP 307,880 17,721,000 1.03%
30 BANK OF AMERICA CORP /DE/ 300,352 17,288,000 1.01%
31 MESIROW FINANCIAL INVESTMENT MANAGEMENT - Fixed Income 292,177 16,819,000 0.98%
32 Capital Research Global Investors 291,000 16,750,000 0.97%
33 RICE HALL JAMES & ASSOCIATES, LLC 271,806 15,645,000 0.91%
34 TIVERTON ASSET MANAGEMENT LLC 611,872 15,524,000 0.90%
35 JANUS HENDERSON GROUP PLC 267,419 15,393,000 0.90%
36 ROYAL BANK OF CANADA 262,505 15,111,000 0.88%
37 Quantum Capital Management, LLC / NJ 255,533 14,708,000 0.86%
38 THRIVENT FINANCIAL FOR LUTHERANS 225,422 12,976,000 0.75%
39 Nationwide Fund Advisors 223,359 12,857,000 0.75%
40 JPMORGAN CHASE & CO 221,939 12,774,000 0.74%
41 AMERIPRISE FINANCIAL INC 215,624 12,411,000 0.72%
42 GOLDMAN SACHS GROUP INC 182,200 10,487,000 0.61% Call
43 WADDELL & REED FINANCIAL INC 181,468 10,446,000 0.61%
44 Capital Investment Services of America, Inc. 172,807 9,947,000 0.58%
45 FRED ALGER MANAGEMENT, LLC 172,207 9,912,000 0.58%
46 PRINCIPAL FINANCIAL GROUP INC 166,574 9,588,000 0.56%
47 GEODE CAPITAL MANAGEMENT, LLC 156,635 9,015,000 0.52%
48 WEATHERBIE CAPITAL, LLC 136,972 7,884,000 0.46%
49 Century Capital Management, LLC 122,499 7,051,000 0.41%
50 Archon Capital Management LLC 106,100 6,107,000 0.36%
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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.