What does CUSIP 46333X108 represent in this 13F holders report?

CUSIP 46333X108 is the security identifier for IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Common Stock used to aggregate holder disclosures.

How many institutions held IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Common Stock in Q4 2014?

129 institutional investors reported IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Common Stock for Q4 2014. Use the holders table for investor-level position and value details.

IRONWOOD PHARMACEUTICALS INC - Class A Common Stock (IRWD)

CUSIP: 46333X108

Q4 2014 13F Holders as of 31 Dec 2014

Type / Class: Equity / Class A Common Stock
Shares outstanding: 163,317,295
Total 13F shares: 133,616,046
Share change: +778,161
Total reported value: $2,046,265,589
Put/Call ratio: 36%
Price per share: $15.32
Number of holders: 129
Value change: +$20,104,400
Number of buys: 51
Number of sells: 60

Quarterly Holders Quick Answers

What is CUSIP 46333X108?
CUSIP 46333X108 identifies IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Common Stock in SEC institutional holdings data.

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Newer quarter: Q1 2015
Previous quarter: Q3 2014

Recent filing periods for CUSIP 46333X108:

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Top shareholders of IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
FMR LLC	13F	Company	12%	19,766,906	$256,070,000	—	30 Sep 2014	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	10%	16,921,306	$219,216,000	—	30 Sep 2014	13F
JANUS HENDERSON INVESTORS US LLC	13F	Company	8%	13,053,528	$169,107,000	—	30 Sep 2014	13F
ORBIMED ADVISORS LLC	13F	Company	7.4%	12,012,100	$155,617,000	—	30 Sep 2014	13F
MORGAN STANLEY	13F	Company	4.9%	8,054,267	$104,343,000	—	30 Sep 2014	13F
VANGUARD GROUP INC	13F	Company	4.5%	7,316,217	$94,781,000	—	30 Sep 2014	13F
BVF INC/IL	13F	Company	3.4%	5,597,065	$72,510,000	—	30 Sep 2014	13F
DEUTSCHE BANK AG\	13F	Company	3.3%	5,361,005	$69,449,000	—	30 Sep 2014	13F
STATE OF WISCONSIN INVESTMENT BOARD	13F	Company	3%	4,873,497	$63,136,000	—	30 Sep 2014	13F
BlackRock Fund Advisors	13F	Company	2.9%	4,779,331	$61,916,000	—	30 Sep 2014	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	2%	3,194,932	$41,390,000	—	30 Sep 2014	13F
STATE STREET CORP	13F	Company	1.8%	2,996,085	$38,812,000	—	30 Sep 2014	13F
NORTHERN TRUST CORP	13F	Company	1%	1,662,370	$21,535,000	—	30 Sep 2014	13F
FRED ALGER MANAGEMENT, LLC	13F	Company	1%	1,625,438	$21,058,000	—	30 Sep 2014	13F
Capital World Investors	13F	Company	0.98%	1,605,000	$20,793,000	—	30 Sep 2014	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	0.87%	1,416,701	$18,353,000	—	30 Sep 2014	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.82%	1,337,228	$17,324,000	—	30 Sep 2014	13F
Point72 Asset Management, L.P.	13F	Company	0.79%	1,292,500	$16,744,000	—	30 Sep 2014	13F
Gamma As Sector	13F	Individual	0.7%	1,138,291	$14,747,000	—	30 Sep 2014	13F
Asset Management One Co., Ltd.	13F	Company	0.55%	892,055	$11,944,000	—	30 Sep 2014	13F
FIL Ltd	13F	Company	0.51%	826,765	$10,711,000	—	30 Sep 2014	13F
Tekla Capital Management LLC	13F	Company	0.47%	768,050	$9,950,000	—	30 Sep 2014	13F
AXA S.A.	13F	Company	0.44%	717,990	$9,302,000	—	30 Sep 2014	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.43%	698,339	$9,046,000	—	30 Sep 2014	13F
CLOUGH CAPITAL PARTNERS L P	13F	Company	0.39%	630,700	$8,171,000	—	30 Sep 2014	13F
Bank of New York Mellon Corp	13F	Company	0.37%	606,627	$7,859,000	—	30 Sep 2014	13F
Visium Asset Management, LP	13F	Company	0.34%	550,000	$7,125,000	—	30 Sep 2014	13F
CAPITAL GUARDIAN TRUST CO	13F	Company	0.33%	543,711	$7,044,000	—	30 Sep 2014	13F
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F	Company	0.33%	541,576	$7,016,000	—	30 Sep 2014	13F
D. E. Shaw & Co., Inc.	13F	Company	0.33%	535,196	$6,933,000	—	30 Sep 2014	13F
Robert N. Shapiro	13F	Individual	0.3%	485,974	$6,296,000	—	30 Sep 2014	13F
WADDELL & REED FINANCIAL INC	13F	Company	0.29%	480,000	$6,218,000	—	30 Sep 2014	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.28%	461,084	$5,973,000	—	30 Sep 2014	13F
SOUND ENERGY PARTNERS, INC.	13F	Company	0.25%	400,566	$5,189,000	—	30 Sep 2014	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.24%	385,599	$4,995,000	—	30 Sep 2014	13F
BAKER BROS. ADVISORS LP	13F	Company	0.21%	346,160	$4,485,000	—	30 Sep 2014	13F
THRIVENT FINANCIAL FOR LUTHERANS	13F	Company	0.21%	337,386	$4,371,000	—	30 Sep 2014	13F
BlackRock Investment Management, LLC	13F	Company	0.2%	327,850	$4,247,000	—	30 Sep 2014	13F
Lombard Odier Asset Management (USA) Corp	13F	Company	0.2%	325,000	$4,210,000	—	30 Sep 2014	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.19%	313,556	$4,063,000	—	30 Sep 2014	13F
GUGGENHEIM CAPITAL LLC	13F	Company	0.19%	307,222	$3,980,000	—	30 Sep 2014	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.16%	259,025	$3,356,000	—	30 Sep 2014	13F
Forward Management, LLC	13F	Company	0.15%	244,497	$3,297,000	—	30 Sep 2014	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.14%	234,315	$3,036,000	—	30 Sep 2014	13F
CITADEL ADVISORS LLC	13F	Company	0.14%	222,892	$2,887,000	—	30 Sep 2014	13F
Artal Group S.A.	13F	Company	0.13%	216,879	$2,810,000	—	30 Sep 2014	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.13%	208,400	$2,700,000	—	30 Sep 2014	13F
SPHERA FUNDS MANAGEMENT LTD.	13F	Company	0.12%	194,200	$2,516,000	—	30 Sep 2014	13F
Kathryn A. Hall	13F	Individual	0.12%	193,588	$2,508,000	—	30 Sep 2014	13F
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY	13F	Company	0.12%	193,105	$2,502,000	—	30 Sep 2014	13F

Institutional Holders of IRONWOOD PHARMACEUTICALS INC - Class A Common Stock (IRWD) as of Q4 2014

As of 31 Dec 2014, IRONWOOD PHARMACEUTICALS INC - Class A Common Stock (IRWD) was held by 129 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 133,616,046 shares. The largest 10 holders included FMR LLC, WELLINGTON MANAGEMENT GROUP LLP, JANUS CAPITAL MANAGEMENT LLC, ORBIMED ADVISORS LLC, MORGAN STANLEY, VANGUARD GROUP INC, DEUTSCHE BANK AG\, BlackRock Fund Advisors, BVF INC/IL, and STATE OF WISCONSIN INVESTMENT BOARD. This page lists 129 institutional shareholders reporting positions in this security for the Q4 2014 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2014 vs Q3 2014 Across Filers

Q3 2014 holders

138

Q4 2014 holders

129

Holder diff

-9

Investor	Q3 2014 Shares	Q4 2014 Shares	Share Diff	Share Chg %	Q3 2014 Value $	Q4 2014 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.