NASDAQ: IRWD
Ironwood Pharmaceuticals Inc Stock Ownership - Who owns Ironwood Pharmaceuticals?

Insider buying vs selling

Have Ironwood Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Alexander J. DennerDirector2026-03-176,725,000$3.05
$20.51MSell
Alexander J. DennerDirector2026-03-175,800$3.31
$19.20kSell
Ronald SilverPrincipal Accounting Officer2026-02-2412,621$3.66
$46.19kSell
Tammi L. GaskinsChief Commercial Officer2026-02-2411,239$3.66
$41.13kSell
Minardo JohnChief Legal Officer2026-02-2419,053$3.66
$69.73kSell
Gregory S. MartiniChief Financial Officer2026-02-2411,457$3.66
$41.93kSell
Thomas A. McCourtChief Executive Officer2026-02-24103,526$3.66
$378.91kSell
Michael ShetzlineSVP CMO Head-ResDrug2026-02-2417,012$3.66
$62.26kSell
Minardo JohnChief Legal Officer2026-02-2317,439$3.81
$66.44kSell
Gregory S. MartiniChief Financial Officer2026-02-2310,487$3.81
$39.96kSell

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Net Insider Buy/Sell (L12M) Ownership

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IRWD Shareholders

What type of owners hold Ironwood Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Armistice Capital LLC9.83%16,025,000$48.72MInstitution
Vanguard Group Inc9.79%15,958,196$48.51MInstitution
Sarissa Capital Management LP9.76%15,919,435$48.40MInstitution
Blackrock Inc7.84%12,784,806$38.87MInstitution
Bank Of America Corp7.07%11,521,660$35.03MInstitution
Bryan E. Roberts6.62%10,800,857$32.83MInsider
Alexander J. Denner5.79%9,444,944$28.71MInsider
Fmr LLC5.61%9,153,685$27.83MInsider
Associates Venrock5.36%8,733,763$26.55MInsider
Renaissance Technologies LLC5.03%8,204,973$24.94MInstitution

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IRWD vs Pharmaceutical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
IRWD72.40%27.60%Net SellingNet Selling
AQST59.15%6.65%Net SellingNet Selling
KMDA9.32%7.19%
ETON58.24%32.85%Net SellingNet Buying
EBS46.61%53.39%Net SellingNet Selling

Ironwood Pharmaceuticals Stock Ownership FAQ

Who owns Ironwood Pharmaceuticals?

Ironwood Pharmaceuticals (NASDAQ: IRWD) is owned by 94.83% institutional shareholders, 36.16% Ironwood Pharmaceuticals insiders, and 0.00% retail investors. Bryan E. Roberts is the largest individual Ironwood Pharmaceuticals shareholder, owning 10.80M shares representing 6.62% of the company. Bryan E. Roberts's Ironwood Pharmaceuticals shares are currently valued at $35.53M.

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