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
Tammi L. GaskinsChief Commercial Officer2025-11-176,016$3.32
$19.97kSell
Tammi L. GaskinsChief Commercial Officer2025-08-111,316$0.84
$1.11kSell
Ronald SilverPrincipal Accounting Officer2025-08-112,846$0.84
$2.39kSell
Minardo JohnChief Legal Officer2025-08-117,754$0.84
$6.51kSell
Gregory S. MartiniChief Financial Officer2025-08-111,265$0.84
$1.06kSell
Thomas A. McCourtChief Executive Officer2025-05-1613,353$0.58
$7.74kSell
Tammi L. GaskinsChief Commercial Officer2025-05-162,563$0.58
$1.49kSell
Thomas A. McCourtChief Executive Officer2025-02-10139,064$1.76
$244.75kSell
Gregory S. MartiniChief Financial Officer2025-02-1012,052$1.76
$21.21kSell
Michael ShetzlineSVP CMO Head-ResDrug2025-02-1041,269$1.76
$72.63kSell

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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
Alexander J. Denner9.94%16,171,293$52.23MInsider
Armistice Capital LLC9.93%16,150,000$52.16MInstitution
Vanguard Group Inc9.88%16,072,006$51.91MInstitution
Sarissa Capital Management LP9.79%15,919,435$51.42MInstitution
Blackrock Inc7.41%12,062,558$38.96MInstitution
Bank Of America Corp7.19%11,695,544$37.78MInstitution
Bryan E. Roberts6.64%10,800,857$34.89MInsider
Fmr LLC5.63%9,153,685$29.57MInsider
Associates Venrock5.37%8,733,763$28.21MInsider
Renaissance Technologies LLC5.13%8,352,173$26.98MInstitution

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IRWD vs Pharmaceutical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
IRWD69.65%30.35%Net SellingNet Selling
CGC9.35%31.53%Net SellingNet Selling
BIOA59.29%24.78%Net BuyingNet Buying
SIGA35.34%64.66%Net Selling
ETON65.90%33.34%Net SellingNet Selling

Ironwood Pharmaceuticals Stock Ownership FAQ

Who owns Ironwood Pharmaceuticals?

Ironwood Pharmaceuticals (NASDAQ: IRWD) is owned by 91.56% institutional shareholders, 39.89% Ironwood Pharmaceuticals insiders, and 0.00% retail investors. Alexander J. Denner is the largest individual Ironwood Pharmaceuticals shareholder, owning 16.17M shares representing 9.94% of the company. Alexander J. Denner's Ironwood Pharmaceuticals shares are currently valued at $51.91M.

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