Security key
23254X201
IRONWOOD PHARMACEUTICALS, INC. - Class A common stock, $0.001 par value (CYTH)
CUSIP: 23254X201
Q1 2023 13F Holders as of 31 Mar 2023
- Security type / class
- Equity / Class A common stock, $0.001 par value
- Total 13F shares
- 973,858
- Total 13F value
- $818,227
- Share change
- -311,989
- SEC-reported price per share
- $0.84
- Number of holders
- 14
- Value change
- -$267,968
- Number of buys
- 5
- Number of sells
- 4
- Shares outstanding
- 162,993,492
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2023
Institutions
14
Top holders
10
CYTH full security history
Ownership snapshot
Full 13F holder table
IRONWOOD PHARMACEUTICALS INC SEC filings
IRONWOOD PHARMACEUTICALS INC company facts
Broader feeds
Ownership snapshot
Top reported holders of CYTH - IRONWOOD PHARMACEUTICALS, INC. - Class A common stock, $0.001 par value (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
BlackRock Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
0/15
Latest evidence
31 Dec 2022
13F
Highest disclosed value: $319,332,706
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. has the largest disclosed position value at $319.33M.
0 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 BlackRock Finance, Inc.'s linked filing trail.
Disclosed position value
Top 5
BlackRock Finance, Inc.
$319.33M
Sarissa Capital Management LP
$203.07M
VANGUARD GROUP INC
$182.9M
WELLINGTON MANAGEMENT GROUP LLP
$165.29M
STATE STREET CORP
$138.56M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock Finance, Inc. |
13F
Company
|
—
mixed-class rows
|
$319,332,706
25,773,743 shares
mixed-class rows
|
— | 31 Dec 2022 |
| Sarissa Capital Management LP |
13F
Company
|
—
denominator unverified
|
$203,072,100
16,390,000 shares
|
— | 31 Dec 2022 |
| VANGUARD GROUP INC |
13F
Company
|
—
mixed-class rows
|
$182,897,042
14,986,451 shares
mixed-class rows
|
— | 31 Dec 2022 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
—
denominator unverified
|
$165,287,271
13,340,377 shares
|
— | 31 Dec 2022 |
| STATE STREET CORP |
13F
Company
|
—
mixed-class rows
|
$138,555,157
11,207,878 shares
mixed-class rows
|
— | 31 Dec 2022 |
| LSV ASSET MANAGEMENT |
13F
Company
|
—
denominator unverified
|
$98,208,000
7,926,397 shares
|
— | 31 Dec 2022 |
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 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
14
Shares
973,858
Rows available
14
| 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 2023 vs Q1 2023 Across Filers
Q1 2023 holders
14
Q1 2023 holders
14
Holder diff
0
| Investor | Q1 2023 Shares | Q1 2023 Shares | Share Diff | Share Chg % | Q1 2023 value | Q1 2023 value | Value change | Value Chg % |
|---|