Across its top 20 institutional holders, IRWD's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 9/100, avg. turnover score 33/100).

Quarterly Activity

Recent Activity

+$353.6M

Total Buy Value

$262.4M

Total Sell Value

New buy48

Trim57

Add86

Sold out26

134

Net Buyers

Net Sellers

Smart Money Convergence

IRWD does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.

13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

Filings (90d)

$640K

Total Est. Value

149K shares

Planned Shares

Last Filed 2026-07-07

Filer	Title/Relationship	Filing Date	Planned Shares	Est. Value
RONALD SILVER	Officer	2026-07-07	128K shares	$560K
McHugh Julie	Director	2026-06-16	22K shares	$80K

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

CUSIP

46333X108

FAQ

Who are the top institutional investors holding IRONWOOD PHARMACEUTICALS INC (IRWD)?

Major stakeholders currently include Armistice Capital, LLC ($52.7M), BlackRock, Inc. ($46.9M), UBS Group AG ($42.6M). Based on the latest 13F filings, there are a total of 224 tracked investment funds and institutions maintaining positions in IRWD.

What is the overall institutional sentiment toward IRWD recently?

Institutional sentiment appears Bullish (Net Buying). During the most recent reporting quarter, the stock experienced a net inflow of $47.3M, driven by 134 managers accumulating shares while 83 reduced their exposure.

Which institutions have been selling or reducing their IRWD positions?

In the latest period, 57 funds trimmed their holdings, and 26 managers completely exited their positions. The aggregate reported sell value was $262.4M.

Are there any notable investors adding IRWD to their portfolios?

Yes, buying activity remains notable. 48 institutions opened new positions in {ticker}, and 86 existing holders added to their shares. The total reported buy value for the quarter amounted to $353.6M.