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Institutional Investment Manager
GILDER GAGNON HOWE & CO LLC
GILDER GAGNON HOWE & CO LLC (CIK: 0000902464) incorporated in New York, located at 475 10th Avenue, New York, NY. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q1)
Portfolio Summary: 266 holdings with a total value of $7,199,186,000.
#
Name
Shares
Value ($)
%
Options
Notes
51 SPARK THERAPEUTICS INCORPORATED 456,604 35,387,000 0.49%
52 GTT COMMUNICATIONS INC COM 1,825,426 34,464,000 0.48%
53 POOL CORPORATION 492,296 34,343,000 0.48%
54 H&E EQUIPMENT SERVICES LLC COM 1,321,392 33,022,000 0.46%
55 GOOGLE INC 58,421 32,015,000 0.44%
56 INFINERA CORPORATION 1,579,134 31,062,000 0.43%
57 MAKEMYTRIP LIMITED MAURITIUS 1,381,011 30,327,000 0.42%
58 ALLEGIANT TRAVEL CO 154,010 29,615,000 0.41%
59 PROTO LABS INC COM 415,231 29,066,000 0.40%
60 ENPHASE ENERGY INC 2,111,546 27,851,000 0.39%
61 LENDINGCLUB CORP 1,408,070 27,669,000 0.38%
62 ISHARES NASDAQ BIOTECHNOLOGY ETF 46,780 25,949,000 0.36%
63 COSTAR GROUP 130,413 25,800,000 0.36%
64 KANSAS CITY SOUTHERN 240,497 24,550,000 0.34%
65 MARTIN MARIETTA MATLS INC 168,602 23,571,000 0.33%
66 ON DECK CAP INC 1,077,865 22,948,000 0.32%
67 LGI HOMES INC 1,363,969 22,724,000 0.32%
68 QUALYS INC 470,923 21,889,000 0.30%
69 Q2 Holdings Inc 980,482 20,727,000 0.29%
70 T2 BIOSYSTEMS INCORPORATED 1,331,826 20,670,000 0.29%
71 BOOT BARN HLDGS INC 861,021 20,596,000 0.29%
72 FIRST REP BK SAN FRANCISCO C 356,016 20,325,000 0.28%
73 AMERICAN INTL GROUP INC 353,060 19,344,000 0.27%
74 LIVE NATION, INC. 749,818 18,918,000 0.26%
75 GILDAN ACTIVEWEAR INC 619,261 18,266,000 0.25%
76 ASTRONICS CORP 243,302 17,931,000 0.25%
77 SPS COMM INC 261,182 17,525,000 0.24%
78 FLEETCOR TECHNOLOGIES INC 113,883 17,187,000 0.24%
79 CAESARSTONE LTD 271,342 16,473,000 0.23%
80 SPLUNK INC 259,688 15,374,000 0.21%
81 APPLE INC 121,801 15,156,000 0.21%
82 SIX FLAGS ENTMT CORP NEW 311,653 15,087,000 0.21%
83 BOINGO WIRELESS INC COM 1,968,896 14,845,000 0.21%
84 AAC HLDGS INC 479,639 14,667,000 0.20%
85 TUESDAY MORNING CORP 853,790 13,746,000 0.19%
86 PALO ALTO NETWORKS INC 93,618 13,676,000 0.19%
87 Amber Road Inc 1,473,990 13,634,000 0.19%
88 BAIDU INC 62,317 12,987,000 0.18%
89 ALIBABA GROUP HLDG LTD 154,517 12,862,000 0.18%
90 TRANSDIGM GROUP INC 58,771 12,854,000 0.18%
91 EAGLE MATERIALS INC 147,781 12,349,000 0.17%
92 SHUTTERSTOCK INC COM 179,794 12,346,000 0.17%
93 WORKDAY INC 146,231 12,343,000 0.17%
94 GUIDEWIRE SOFTWARE INC 229,323 12,065,000 0.17%
95 UBIQUITI NETWORKS INC 405,197 11,974,000 0.17%
96 AMIRA NATURE FOODS LTD 1,305,049 11,693,000 0.16%
97 Former Charter Communication (Del 5/18/2016) 59,762 11,541,000 0.16%
98 New Relic Inc 327,241 11,355,000 0.16%
99 MASTERCARD INCORPORATED 125,915 10,878,000 0.15%
100 SERVICENOW INC 134,159 10,569,000 0.15%
Page 2 of 6

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001140361-15-017075, filed 2015.04.30).

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.