Security key
23254X201
IRONWOOD PHARMACEUTICALS, INC. - Class A common stock, $0.001 par value (CYTH)
CUSIP: 23254X201
Q2 2022 13F Holders as of 30 Jun 2022
- Security type / class
- Equity / Class A common stock, $0.001 par value
- Total 13F shares
- 401,426
- Total 13F value
- $793,000
- Share change
- -31,719
- SEC-reported price per share
- $1.99
- Number of holders
- 10
- Value change
- -$77,588
- Number of buys
- 1
- Number of sells
- 5
- Shares outstanding
- 162,993,492
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2022
Institutions
10
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
Sarissa Capital Managemen...
Disclosed value leader
Sarissa Capital Managemen...
Comparable rows
15/15
Latest evidence
31 Mar 2022
13F
Lead comparable stake: 9.9%
Showing 1-6 of 15 holder rows.
Quick read
Sarissa Capital Management LP leads the comparable SEC ownership view at 9.9%.
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 Sarissa Capital Management LP's linked filing trail.
Comparable ownership
Top 5
Sarissa Capital Management LP
9.9%
WELLINGTON MANAGEMENT GROUP LLP
9.2%
BROWN CAPITAL MANAGEMENT LLC
8.6%
WESTFIELD CAPITAL MANAGEMENT CO LP
5.2%
LSV ASSET MANAGEMENT
4.5%
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 |
|---|---|---|---|---|---|
| Sarissa Capital Management LP |
13F
Company
|
9.9%
|
$206,186,000
16,390,000 shares
|
— | 31 Mar 2022 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
9.2%
|
$190,984,000
15,181,647 shares
|
— | 31 Mar 2022 |
| BROWN CAPITAL MANAGEMENT LLC |
13F
Company
|
8.6%
|
$179,001,000
14,228,999 shares
|
— | 31 Mar 2022 |
| WESTFIELD CAPITAL MANAGEMENT CO LP |
13F
Company
|
5.2%
|
$107,363,000
8,534,416 shares
|
— | 31 Mar 2022 |
| LSV ASSET MANAGEMENT |
13F
Company
|
4.5%
|
$93,184,000
7,407,330 shares
|
— | 31 Mar 2022 |
| PUTNAM INVESTMENTS LLC |
13F
Company
|
2.9%
|
$60,273,000
4,791,196 shares
|
— | 31 Mar 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 Q2 2022
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
10
Shares
401,426
Rows available
10
| 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 Q2 2022 vs Q1 2022 Across Filers
Q1 2022 holders
10
Q2 2022 holders
10
Holder diff
0
| Investor | Q1 2022 Shares | Q2 2022 Shares | Share Diff | Share Chg % | Q1 2022 value | Q2 2022 value | Value change | Value Chg % |
|---|