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

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

How many institutions held IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Stock in Q3 2019?

156 institutional investors reported IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Stock for Q3 2019. Use the holders table for investor-level position and value details.

IRONWOOD PHARMACEUTICALS INC - Class A Stock (IRWD)

CUSIP: 46333X108

Q3 2019 13F Holders as of 30 Sep 2019

Security type / class: Equity / Class A Stock
Total 13F shares: 173,764,399
Total 13F value: $1,491,782,455
Share change: +12,445,393
Put/Call ratio: 20%
SEC-reported price per share: $8.58
Number of holders: 156
Value change: +$101,224,965
Number of buys: 89
Number of sells: 53
Shares outstanding: 165,105,778

Security key

46333X108

Report period

Q3 2019

Institutions

156

Top holders

IRWD full security history Ownership snapshot Full 13F holder table IRONWOOD PHARMACEUTICALS INC SEC filings IRONWOOD PHARMACEUTICALS INC company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

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

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

WELLINGTON MANAGEMENT GRO...

Disclosed value leader

WELLINGTON MANAGEMENT GRO...

Comparable rows

15/15

Latest evidence

30 Jun 2019

13F Lead comparable stake: 13% Showing 1-6 of 15 holder rows.

Quick read

WELLINGTON MANAGEMENT GROUP LLP leads the comparable SEC ownership view at 13%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens WELLINGTON MANAGEMENT GROUP LLP's linked filing trail.

Comparable ownership Top 5

WELLINGTON MANAGEMENT GROUP LLP 13%

VANGUARD GROUP INC 9.5%

FMR LLC 8.4%

BlackRock Finance, Inc. 7.7%

BROWN CAPITAL MANAGEMENT LLC 7.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
WELLINGTON MANAGEMENT GROUP LLP	13F Company 13F	13%	$237,700,000 21,727,703 shares	—	30 Jun 2019
VANGUARD GROUP INC	13F Company 13F	9.5%	$170,730,000 15,606,157 shares	—	30 Jun 2019
FMR LLC	13F Company 13F	8.4%	$151,267,000 13,826,974 shares	—	30 Jun 2019
BlackRock Finance, Inc.	13F Company 13F	7.7%	$139,270,000 12,730,319 shares	—	30 Jun 2019
BROWN CAPITAL MANAGEMENT LLC	13F Company 13F	7.5%	$134,889,000 12,329,890 shares	—	30 Jun 2019
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F Company 13F	6.2%	$111,574,490 10,198,765 shares	—	30 Jun 2019

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2019

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

156

173,764,399

Rows available

156

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2019 vs Q2 2019 Across Filers

Q2 2019 holders

148

Q3 2019 holders

156

Holder diff

Investor	Q2 2019 Shares	Q3 2019 Shares	Share Diff	Share Chg %	Q2 2019 value	Q3 2019 value	Value change	Value Chg %