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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
1 0 68,971,479 554,675,000 7.70%
2 AMAZON COM INC 706,827 263,010,000 3.65%
3 NETFLIX INC 620,331 258,486,000 3.59%
4 PACIRA BIOSCIENCES INC 2,879,549 255,848,000 3.55%
5 FACEBOOK INC 2,727,084 224,207,000 3.11%
6 TWITTER INC 4,157,652 208,215,000 2.89%
7 ALNYLAM PHARMACEUTICALS INC 1,748,367 182,564,000 2.54%
8 FOUNDATION MEDICINE INC COM 3,749,960 180,411,000 2.51%
9 SPIRIT AIRLS INC 2,054,538 158,939,000 2.21%
10 KEURIG GREEN MTN INC 1,379,941 154,181,000 2.14%
11 TRIPADVISOR INC 1,772,228 147,396,000 2.05%
12 ACADIA HEALTHCARE COMPANY IN 2,017,229 144,434,000 2.01%
13 UNDER ARMOUR INC 1,719,414 138,843,000 1.93%
14 INCYTE 1,463,618 134,155,000 1.86%
15 LINKEDIN CORP COM CL A 512,372 128,021,000 1.78%
16 BIOMARIN 916,436 114,206,000 1.59%
17 TESLA INC 597,225 112,738,000 1.57%
18 JD COM INC ADR 3,769,429 110,746,000 1.54%
19 PAYCOM SOFTWARE INC 3,364,221 107,857,000 1.50%
20 LULULEMON ATHLETICA 1,664,104 106,536,000 1.48%
21 GRUBHUB INC 2,345,948 106,483,000 1.48%
22 MASONITE INTL CORP NEW COM 1,513,086 101,770,000 1.41%
23 HUBSPOT INCORPORATED 2,527,688 100,855,000 1.40%
24 AKAMAI TECH 1,404,064 99,752,000 1.39%
25 ZILLOW GROUP INC 967,278 97,018,000 1.35%
26 HDFC BANK LTD 1,438,256 84,699,000 1.18%
27 EXACT SCIENCES CORP 3,533,714 77,812,000 1.08%
28 ICICI BANK LIMITED 7,452,554 77,208,000 1.07%
29 DEXCOM 1,221,354 76,139,000 1.06%
30 Esperion Therapeutics Inc 805,990 74,635,000 1.04%
31 HOMEAWAY INC 2,467,922 74,457,000 1.03%
32 FIESTA RESTAURANT GROUP INC COM 1,148,436 70,055,000 0.97%
33 WR GRACE & CO 703,216 69,527,000 0.97%
34 CRAY INCORPORATED COM NEW 2,458,979 69,048,000 0.96%
35 PROOFPOINT INC 1,162,136 68,822,000 0.96%
36 LDR HLDG CORP COM 1,862,595 68,245,000 0.95%
37 NXSTAGE MED INC COM 3,938,133 68,130,000 0.95%
38 YELP INC 1,430,962 67,756,000 0.94%
39 Abaxis Inc 937,762 60,120,000 0.84%
40 DEMANDWARE INC 950,929 57,912,000 0.80%
41 DELTA AIRLINES INC DEL 1,283,930 57,725,000 0.80%
42 DIRTT ENVIRONMENTAL SOLUT LTD COM ISIN #CA25490H1064 SEDOL #BH13 10,504,358 55,015,000 0.76%
43 FLEXION THERAPEUTICS INC COM 2,292,467 51,626,000 0.72%
44 ILLUMINA INC 265,267 49,244,000 0.68%
45 TABLEAU SOFTWARE INC CL A 527,215 48,778,000 0.68%
46 SOLARCITY CORP 894,803 45,885,000 0.64%
47 MALIBU BOATS INCORPORATED COM CLASS A 1,943,733 45,386,000 0.63%
48 INSULET CORPORATION 1,130,490 37,702,000 0.52%
49 THERAPEUTICSMD INC 6,090,445 36,847,000 0.51%
50 SHAKE SHACK INC CL A 721,981 36,135,000 0.50%
Page 1 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.