2011 IPOs

In addition to the US IPOs listed below, a number of American companies have launched IPOs outside the United States, either to capitalize on growing opportunities overseas or avoid the cost of complying with US financial regulations. GI Dynamics Inc., a Lexington, MA medical device company, recently filed documents to go public in Australia. And earlier this year, Samsonite International, the luggage maker, went public on the Hong Kong Stock Exchange.

• Zynga (ZNGA); Nasdaq; 16 Dec 2011; acquired by Take-Two Interactive Software (TTWO) for $12.7 billion (Jan 22)
• Bonanza Creek Energy (BCEI); NYSE; 15 Dec 2011
• Groupon (GRPN); Nasdaq; 4 November 2011
• NeoPhotonics (NPTN); 2 Feb 2011; NYSE; acquired by Lumentum (LITE) (4 November 2021)

	Company	Symbol	Industry	Public Date	Shares (mln)	Offer Price
91	American Capital Mortgage Investment	MTGE	Financials	8/4/11	8.00	$ 20.00
90	C&J Energy Services	CJES	Industrials	7/29/11	11.50	$ 29.00
89	Chefs Warehouse Holdings	CHEF	Consumer Goods	7/28/11	9.00	$ 15.00
88	Horizon Pharma	HZNP	Health Care	7/28/11	5.50	$ 9.00
87	Teavana Holdings	TEA	Consumer Goods	7/28/11	7.14	$ 17.00
86	Wesco Aircraft Holdings	WAIR	Industrials	7/28/11	21.00	$ 15.00
85	American Midstream Partners, LP	AMID	Oil & Gas	7/27/11	3.75	$ 21.00
84	Dunkin Brands Group	DNKN	Consumer Goods	7/27/11	22.50	$ 19.00
83	Tangoe	TNGO	Technology	7/27/11	8.77	$ 10.00
82	Apollo Residential Mortgage	AMTG	Financials	7/22/11	10.00	$ 20.00
81	Francesca’s Holdings	FRAN	Consumer Goods	7/22/11	10.00	$ 17.00
80	SunCoke Energy	SXC	Industrials	7/21/11	11.60	$ 16.00
79	Skullcandy	SKUL	Consumer Goods	7/20/11	9.44	$ 20.00
78	Zillow	Z	Consumer Services	7/20/11	3.46	$ 20.00
77	Oiltanking Partners, L.P.	OILT	Oil & Gas	7/14/11	10.00	$ 21.50
76	AG Mortgage Investment Trust	MITT	Financials	6/30/11	5.50	$ 20.00
75	HomeAway	AWAY	Technology	6/29/11	8.00	$ 27.00
74	KiOR	KIOR	Basic Materials	6/24/11	10.00	$ 15.00
73	Vanguard Health Systems	VHS	Health Care	6/22/11	25.00	$ 18.00
72	Bankrate	RATE	Consumer Services	6/17/11	20.00	$ 15.00
71	Compressco Partners, L.P.	GSJK	Oil & Gas	6/15/11	2.67	$ 20.00
70	Pandora Media	P	Technology	6/15/11	14.68	$ 16.00
69	Fusion-io	FIO	Technology	6/9/11	12.30	$ 19.00
68	Taomee Holdings	TAOM	Consumer Services	6/9/11	7.19	$ 9.00
67	Solazyme	SZYM	Basic Materials	5/27/11	10.98	$ 18.00
66	Freescale Semiconductor Holdings I, Ltd.	FSL	Technology	5/26/11	43.50	$ 18.00
65	Lone Pine Resources	LPR	Industrials	5/26/11	15.00	$ 13.00
64	Spirit Airlines	SAVE	Consumer Services	5/26/11	15.60	$ 12.00
63	Active Network (The)	ACTV	Technology	5/25/11	11.00	$ 15.00
62	Yandex N.V.	YNDX	Technology	5/24/11	52.17	$ 25.00
61	LinkedIn	LNKD	Technology	5/19/11	7.84	$ 45.00
60	China Zenix Auto International	ZX	Consumer Goods	5/12/11	12.90	$ 6.00
59	NGL Energy Partners LP	NGL	Consumer Goods	5/12/11	3.50	$ 21.00
58	Phoenix New Media	FENG	Consumer Services	5/12/11	12.77	$ 11.00
57	FriendFinder Networks	FFN	Technology	5/11/11	5.00	$ 10.00
56	Jiayuan.com International	DATE	Technology	5/11/11	7.10	$ 11.00
55	Kosmos Energy Ltd.	KOS	Oil & Gas	5/11/11	33.00	$ 18.00
54	RLJ Lodging Trust	RLJ	Financials	5/11/11	27.50	$ 18.00
53	NetQin Mobile	NQ	Technology	5/5/11	7.75	$ 11.50
52	Thermon Group Holdings	THR	Consumer Goods	5/5/11	10.00	$ 12.00
51	VOC Energy Trust	VOC	Oil & Gas	5/5/11	11.09	$ 21.00
50	Boingo Wireless	WIFI	Technology	5/4/11	5.77	$ 13.50
49	Renren	RENN	Consumer Services	5/4/11	53.10	$ 14.00
48	RPX Corporation	RPXC	Consumer Services	5/4/11	8.43	$ 19.00
47	21Vianet Group	VNET	Technology	4/21/11	13.00	$ 15.00
46	Responsys	MKTG	Technology	4/21/11	6.62	$ 12.00
45	Sagent Pharmaceuticals	SGNT	Health Care	4/20/11	5.75	$ 16.00
44	Tesoro Logistics LP	TLLP	Oil & Gas	4/20/11	13.00	$ 21.00
43	Air Lease	AL	Consumer Services	4/19/11	30.28	$ 26.50
42	Ellie Mae	ELLI	Technology	4/15/11	7.50	$ 6.00
41	Sequans Communications S.A.	SQNS	Technology	4/15/11	7.70	$ 10.00
40	STAG Industrial	STIR	Financials	4/15/11	13.75	$ 13.00
39	Arcos Dorados Holdings	ARCO	Consumer Services	4/14/11	73.48	$ 17.00
38	Box Ships	TEU	Consumer Services	4/14/11	11.00	$ 12.00
37	TMS International	TMS	Basic Materials	4/14/11	11.20	$ 13.00
36	Zipcar	ZIP	Consumer Services	4/14/11	9.68	$ 18.00
35	CVR Partners, LP	UAN	Basic Materials	4/8/11	19.20	$ 16.00
34	Golar LNG Partners LP	GMLP	Other	4/8/11	12.00	$ 22.50
33	SandRidge Mississippian Trust I	SDT	Oil & Gas	4/7/11	15.00	$ 21.00
32	Tranzyme	TZYM	Health Care	4/4/11	13.50	$ 4.00
31	GNC Holdings	GNC	Consumer Services	4/1/11	22.50	$ 16.00
30	Preferred Apartment Communities	APTS	Financials	4/1/11	4.50	$ 10.00
29	Apollo Global Management	APO	Financials	3/30/11	29.76	$ 19.00
28	Qihoo 360 Technology Co. Ltd.	QIHU	Technology	3/30/11	12.11	$ 14.50
27	ServiceSource International	SREV	Consumer Services	3/25/11	11.94	$ 10.00
26	Cornerstone OnDemand	CSOD	Technology	3/17/11	10.50	$ 13.00
25	MagnaChip Semiconductor	MX	Technology	3/11/11	9.50	$ 14.00
24	HCA Holdings	HCA	Health Care	3/10/11	126.20	$ 30.00
23	Zuoan Fashion Limited	ZA	Consumer Goods	2/15/11	6.00	$ 7.00
22	AcelRx Pharmaceuticals	ACRX	Health Care	2/11/11	8.00	$ 5.00
21	Kinder Morgan	KMI	Oil & Gas	2/11/11	95.47	$ 30.00
20	Kips Bay Medical	KIPS	Health Care	2/11/11	2.06	$ 8.00
19	Fluidigm	FLDM	Technology	2/10/11	5.56	$ 13.50
18	Gevo	GEVO	Health Care	2/9/11	7.15	$ 15.00
17	Summit Hotel Properties	INN	Financials	2/9/11	26.00	$ 9.75
16	China Century Dragon Media	CDM	Consumer Services	2/8/11	1.20	$ 5.25
15	Imperial Holdings	IFT	Financials	2/8/11	16.67	$ 10.75
14	BG Medicine	BGMD	Health Care	2/4/11	5.00	$ 7.00
13	Endocyte	ECYT	Health Care	2/4/11	12.50	$ 6.00
12	Pacira Pharmaceuticals	PCRX	Health Care	2/3/11	6.00	$ 7.00
11	Tornier B.V.	TRNX	Health Care	2/3/11	8.75	$ 19.00
10	Trunkbow International Holdings Limited	TBOW	Technology	2/3/11	4.00	$ 5.00
9	Epocrates	EPOC	Health Care	2/2/11	5.36	$ 16.00
8	NeoPhotonics	NPTN	Technology	2/2/11	7.50	$ 11.00
7	Adecoagro S.A.	AGRO	Other	1/28/11	28.57	$ 11.00
6	BankUnited	BKU	Financials	1/28/11	29.00	$ 27.00
5	BCD Semiconductor Manufacturing Limited	BCDS	Technology	1/28/11	6.00	$ 10.50
4	InterXion Holding N.V.	INXN	Telecommunications	1/28/11	20.38	$ 13.00
3	Demand Media	DMD	Technology	1/26/11	8.90	$ 17.00
2	Nielsen Holdings N.V.	NLSN	Technology	1/26/11	71.43	$ 23.00
1	American Assets Trust	AAT	Financials	1/13/11	27.50	$ 20.50

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