Security key
46333X108
IRONWOOD PHARMACEUTICALS INC - Class A Common Stock (IRWD)
CUSIP: 46333X108
Q1 2018 13F Holders as of 31 Mar 2018
- Security type / class
- Equity / Class A Common Stock
- Total 13F shares
- 152,306,846
- Total 13F value
- $2,350,190,262
- Share change
- -128,106
- Put/Call ratio
- 104%
- SEC-reported price per share
- $15.43
- Number of holders
- 145
- Value change
- -$1,008,869
- Number of buys
- 57
- Number of sells
- 77
- Shares outstanding
- 163,317,295
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2018
Institutions
145
Top holders
10
IRWD full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2018
Previous quarter: Q4 2017
IRONWOOD PHARMACEUTICALS INC SEC filings
IRONWOOD PHARMACEUTICALS INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 46333X108
Recent filing periods:
Ownership snapshot
Top reported holders of IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Common 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
31 Dec 2017
13F
Lead comparable stake: 12%
Showing 1-6 of 15 holder rows.
Quick read
WELLINGTON MANAGEMENT GROUP LLP leads the comparable SEC ownership view at 12%.
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
12%
PRICE T ROWE ASSOCIATES INC /MD/
11%
FMR LLC
11%
BlackRock Finance, Inc.
7.2%
VANGUARD GROUP INC
6.9%
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
|
12%
|
$283,622,000
18,920,796 shares
|
— | 31 Dec 2017 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
Company
|
11%
|
$267,777,000
17,863,732 shares
|
— | 31 Dec 2017 |
| FMR LLC |
13F
Company
|
11%
|
$264,512,000
17,645,933 shares
|
— | 31 Dec 2017 |
| BlackRock Finance, Inc. |
13F
Company
|
7.2%
|
$175,414,000
11,702,048 shares
|
— | 31 Dec 2017 |
| VANGUARD GROUP INC |
13F
Company
|
6.9%
|
$169,010,000
11,274,790 shares
|
— | 31 Dec 2017 |
| JANUS HENDERSON GROUP PLC |
13F
Company
|
5.1%
|
$124,561,000
8,309,638 shares
|
— | 31 Dec 2017 |
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 Q1 2018
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
145
Shares
152,306,846
Rows available
145
| 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 Q1 2018 vs Q4 2017 Across Filers
Q4 2017 holders
157
Q1 2018 holders
145
Holder diff
-12
| Investor | Q4 2017 Shares | Q1 2018 Shares | Share Diff | Share Chg % | Q4 2017 value | Q1 2018 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend