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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 (2016Q3)
Portfolio Summary: 271 holdings with a total value of $5,817,528,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 AMAZON COM INC 631,748 528,969,000 9.09%
2 NETFLIX INC 3,440,919 339,103,000 5.83%
3 FACEBOOK INC 2,448,004 314,005,000 5.40%
4 TESLA INC 770,204 157,145,000 2.70%
5 NXSTAGE MED INC COM 5,890,709 147,209,000 2.53%
6 2U, Inc. 3,753,270 143,713,000 2.47%
7 APACHE CORP 1,953,545 124,773,000 2.14%
8 PAYCOM SOFTWARE INC 2,330,087 116,807,000 2.01%
9 HUBSPOT INCORPORATED 1,784,939 102,848,000 1.77%
10 ALNYLAM PHARMACEUTICALS INC 1,361,656 92,293,000 1.59%
11 ACTIVISION BLIZZARD INC 2,079,992 92,144,000 1.58%
12 RINGCENTRAL INC 3,736,792 88,412,000 1.52%
13 LUMENTUM HLDGS INC 2,070,429 86,482,000 1.49%
14 ALIGN TECHNOLOGY INC 897,621 84,152,000 1.45%
15 ALPHABET INC 106,523 82,799,000 1.42%
16 LGI HOMES INC 2,143,479 78,966,000 1.36%
17 FLEXION THERAPEUTICS INC COM 3,986,098 77,888,000 1.34%
18 METRO BANK PLC 2,120,938 76,068,000 1.31%
19 EXACT SCIENCES CORP 3,900,300 72,429,000 1.25%
20 GIGAMON INC 1,310,096 71,793,000 1.23%
21 HDFC BANK LTD 996,233 71,619,000 1.23%
22 EPAM SYS INC 1,032,625 71,571,000 1.23%
23 ULTA BEAUTY INC 298,071 70,935,000 1.22%
24 SHAKE SHACK INC CL A 2,000,102 69,344,000 1.19%
25 OCADO GROUP PLC ORD GBP0.02 ISIN #GB00B3MBS747 SEDOL #B3MBS74 19,671,005 67,587,000 1.16%
26 ACADIA HEALTHCARE COMPANY IN 1,359,870 67,382,000 1.16%
27 TRIPADVISOR INC 1,006,741 63,606,000 1.09%
28 ARISTA NETWORKS INC COM 746,540 63,516,000 1.09%
29 DEXCOM 698,642 61,243,000 1.05%
30 GLAUKOS CORP 1,612,194 60,844,000 1.05%
31 INCYTE 625,503 58,979,000 1.01%
32 MARTIN MARIETTA MATLS INC 306,688 54,931,000 0.94%
33 NINTENDO LTD ADR UNSPONSORED 1,667,315 54,756,000 0.94%
34 IMPINJ INC 1,461,362 54,684,000 0.94%
35 MASONITE INTL CORP NEW COM 841,819 52,336,000 0.90%
36 PACIRA BIOSCIENCES INC 1,481,461 50,696,000 0.87%
37 UNDER ARMOUR INC 1,220,109 47,194,000 0.81%
38 GTT COMMUNICATIONS INC COM 1,997,318 46,997,000 0.81%
39 ADOBE INC 432,538 46,948,000 0.81%
40 TENCENT HLDGS LIMITED COMMON STOCK 1,649,915 45,311,000 0.78%
41 ZAYO GROUP HOLDINGS 1,512,568 44,938,000 0.77%
42 Q2 Holdings Inc 1,537,661 44,069,000 0.76%
43 FOUNDATION MEDICINE INC COM 1,879,102 43,877,000 0.75%
44 GRUPO SUPERVIELLE S A 2,935,324 43,472,000 0.75%
45 POOL CORPORATION 458,145 43,304,000 0.74%
46 AMEDISYS INC COM 896,437 42,527,000 0.73%
47 BIOMARIN 443,706 41,052,000 0.71%
48 UNDER ARMOUR INC C 1,193,567 40,414,000 0.69%
49 DIRTT ENVIRONMENTAL SOLUT LTD COM ISIN #CA25490H1064 SEDOL #BH13 10,641,075 40,322,000 0.69%
50 ALPHABET INC 49,749 40,001,000 0.69%
Page 1 of 6

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001140361-16-084306, filed 2016.11.01).

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.