// company-profile

Ironwood Pharmaceuticals Inc

IRWD
ExchangeNasdaqSectorPharmaceutical PreparationsInc.DEFilings119Insiders17
// api This Ironwood Pharmaceuticals Inc insider-trading data is served live by the Form4API insider trading API. Get the same data via API.

// activity-summary

Recent insider activity is bullish. Over the last 30 days, 8 insiders purchased shares. Buying was led by Kessler Marla L.

// 90-day insight

Over the last 90 days, Ironwood Pharmaceuticals Inc insiders bought $0 across 9 transactions with no open-market sales.

  • Most active insider: McHugh Julie with 2 transactions totaling $80K.
  • Largest single sale: $80K by McHugh Julie on Jun 16, 2026.
  • 100% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.

Activity skews bullish — buys outpace sales.

Institutional Ownership

Top 13F-HR holders of Ironwood Pharmaceuticals Inc as of 2026-03-31

↑ increasing
Total reported AUM
$545.0M
QoQ change
+11.2%
Reporting period
2026-03-31
#1
ARMISTICE CAPITAL, LLC
CIK 1601086
$52.7M
15.0M shares
#2
UBS Group AG
CIK 1610520
$39.3M
11.2M shares
#3
Sarissa Capital Management LP
CIK 1577524
$32.3M
9.2M shares

Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jun 16, 2026Kessler Marla LIRWD
Award
63,481$0.00$0K
Jun 16, 2026Shepard JayIRWD
Award
63,481$0.00$0K
Jun 16, 2026Moukheibir CatherineIRWD
Award
63,481$0.00$0K
Jun 16, 2026DENNER ALEXANDER JIRWD
Award
63,481$0.00$0K
Jun 16, 2026Currie Mark GIRWD
Award
63,481$0.00$0K

45 more transactions hidden

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