IRONWOOD PHARMACEUTICALS, INC. - Class A common stock, $0.001 par value (CYTH)

Q: What does CUSIP 23254X201 represent in this 13F holders report?

CUSIP 23254X201 is the security identifier for CYTH - IRONWOOD PHARMACEUTICALS, INC. - Class A common stock, $0.001 par value used to aggregate holder disclosures.

Q: How many institutions held CYTH - IRONWOOD PHARMACEUTICALS, INC. - Class A common stock, $0.001 par value in Q2 2025?

1 institutional investor reported CYTH - IRONWOOD PHARMACEUTICALS, INC. - Class A common stock, $0.001 par value for Q2 2025. Use the holders table for investor-level position and value details.

CUSIP: 23254X201

Q2 2025 13F Holders as of 30 Jun 2025

Security type / class: Equity / Class A common stock, $0.001 par value
Total 13F shares: 67
Total 13F value: $39
Share change: +67
SEC-reported price per share: $0.58
Number of holders: 1
Value change: +$39
Number of buys: 1
Shares outstanding: 162,993,492

Security key

23254X201

Report period

Q2 2025

Institutions

Top holders

CYTH full security history Ownership snapshot Previous quarter: Q1 2025 IRONWOOD PHARMACEUTICALS INC SEC filings IRONWOOD PHARMACEUTICALS INC company facts

Broader feeds

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

Reporting periods

Holder history for CUSIP 23254X201

Previous quarter: Q1 2025

Recent filing periods:

Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024 Q4 2023 Q3 2023

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

VANGUARD GROUP INC

Disclosed value leader

Sarissa Capital Managemen...

Comparable rows

15/15

Latest evidence

10 Jun 2025

13F 13D/G 3/4/5 Lead comparable stake: 10% 13D/G row: VANGUARD GROUP INC Showing 1-6 of 15 holder rows.

Quick read

VANGUARD GROUP INC leads the comparable SEC ownership view at 10%.

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 VANGUARD GROUP INC's linked filing trail.

Comparable ownership Top 5

VANGUARD GROUP INC 10%

BlackRock, Inc. 7.1%

RENAISSANCE TECHNOLOGIES LLC 5.4%

STATE STREET CORP 2.2%

Pacer Advisors, Inc. 1.1%

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
VANGUARD GROUP INC	13F 13D/G Company · The Vanguard Group 13F 13D/G	10% from 13D/G	$23,073,356 15,696,161 shares	—	31 Mar 2025
BlackRock, Inc.	13F 13D/G Company 13F 13D/G	7.1% from 13D/G	$17,462,019 11,878,924 shares	—	31 Mar 2025
RENAISSANCE TECHNOLOGIES LLC	13F 13D/G Company 13F 13D/G	5.4% from 13D/G	$14,612,523 9,940,492 shares	—	31 Mar 2025
STATE STREET CORP	13F 13D/G Company · STATE STREET CORPORATION 13F 13D/G	2.2% from 13D/G	$5,142,485 3,498,289 shares	—	31 Mar 2025
Pacer Advisors, Inc.	13F 13D/G Company · Pacer US Small Cap Cash Cows ETF 13F 13D/G	1.1% from 13D/G	$2,629,974 1,789,098 shares	—	31 Mar 2025
Andrew Dreyfus	3/4/5 Director 3/4/5	0.14%	$212,331 228,313 shares	—	10 Jun 2025

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.

Archived quarter

Historical 13F summary for Q2 2025

This older quarter remains available as an indexed ownership summary. Detailed holder rows are no longer kept in the hot table for this period.

CYTH full security history Previous quarter: Q1 2025