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Institutional Investment Manager
Granahan Investment Management, LLC
Granahan Investment Management, LLC (CIK: 0001026710) incorporated in Massachusetts, located at 404 Wyman Street, Waltham, MA. Institutional holdings reported to the SEC.

Institutional Holdings (2016Q4)
Portfolio Summary: 229 holdings with a total value of $2,910,737,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 ABIOMED INC 572,683 64,530,000 2.22%
2 LENDINGTREE INC NEW COM 555,735 56,324,000 1.94%
3 AZENTA INC COM 3,156,251 53,877,000 1.85%
4 IMAX CORP COM 1,617,764 50,798,000 1.75%
5 SPS COMM INC 664,401 46,435,000 1.60%
6 Ultimate Software Group Inc 242,441 44,209,000 1.52%
7 ZELTIQ AESTHETICS INCORPORATED 1,011,078 44,002,000 1.51%
8 COSTAR GROUP 218,643 41,212,000 1.42%
9 EXACT SCIENCES CORP 3,073,600 41,063,000 1.41%
10 AFFILIATED MANAGERS GROUP 280,112 40,700,000 1.40%
11 IMPINJ INC 1,058,658 37,413,000 1.29%
12 EURONET WORLDWIDE INC 514,288 37,250,000 1.28%
13 GIGAMON INC 817,563 37,240,000 1.28%
14 RBC BEARINGS INC 393,203 36,493,000 1.25%
15 CUSTOMERS BANCORP INC COM 1,010,922 36,211,000 1.24%
16 GENESEE AND WYOMING INC INC CL A 506,173 35,133,000 1.21%
17 KAMAN CORP COM 699,818 34,242,000 1.18%
18 ALKERMES PLC SHS 607,100 33,743,000 1.16%
19 2U, Inc. 1,108,746 33,429,000 1.15%
20 ALBANY INTL CORP CL A 715,650 33,135,000 1.14%
21 LIGAND PHARMACEUTICALS INC 325,000 33,023,000 1.13%
22 OSI SYSTEMS INC COM 425,859 32,416,000 1.11%
23 BIO RAD LABS INC CL A 175,234 31,942,000 1.10%
24 Cynosure Inc 697,722 31,816,000 1.09%
25 Evolent Health, Inc. 2,133,362 31,574,000 1.08%
26 WIX COM LTD 690,435 30,759,000 1.06%
27 RUSH ENTERPRISES INC 957,447 30,543,000 1.05%
28 TEXAS CAP BANCSHARES INC COM 385,425 30,217,000 1.04%
29 WEST PHARMACEUTICAL SVSC INC 353,110 29,954,000 1.03%
30 CARDIOVASCULAR SYS INC DEL COM 1,155,990 27,987,000 0.96%
31 InvenSense, Inc. 2,143,385 27,414,000 0.94%
32 QUAKER HOUGHTON COM 206,378 26,404,000 0.91%
33 TERADYNE INC COM 1,011,756 25,699,000 0.88%
34 VIRTUSA CORPORATION 1,003,968 25,220,000 0.87%
35 TENNANT CO COM 345,670 24,612,000 0.85%
36 MARKETAXESS HLDGS INC 166,640 24,483,000 0.84%
37 RED HAT INC 342,476 23,871,000 0.82%
38 SUPER MICRO COMPUTER INC COM 845,276 23,710,000 0.81%
39 VONAGE HLDGS CORP COM 3,436,200 23,538,000 0.81%
40 RESOLUTE ENERGY 560,400 23,083,000 0.79%
41 NEKTAR THERAPEUTICS COM 1,816,305 22,286,000 0.77%
42 MELLANOX TECHNOLOGIES LTD 536,345 21,937,000 0.75%
43 MICROSEMI CORP 406,125 21,919,000 0.75%
44 IRONWOOD PHARMACEUTICALS INC COM CL A 1,408,000 21,528,000 0.74%
45 SILICON LABORATORIES INC 328,931 21,381,000 0.73%
46 TASER INTERNATIONAL 881,584 21,370,000 0.73%
47 HAWAIIAN HOLDINGS INC COM 374,871 21,368,000 0.73%
48 QTS RLTY TR INC 429,975 21,348,000 0.73%
49 INOGEN INC COM 317,801 21,347,000 0.73%
50 FINISAR CORP COM NEW 704,244 21,317,000 0.73%
Page 1 of 5

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001026710-17-000003, filed 2017.02.14).

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.