MarketPeel
Insider Trading Intelligence
GM

Gregory S. Martini

IRWD
CHIEF FINANCIAL OFFICER · IRONWOOD PHARMACEUTICALS INC · CIK 0002053936
FILING MIX · LIFETIME43%/57%
BUYS
3
SELLS
4
TOTAL VALUE
$104.2K
COMPANIES
2
ACTIVE SINCE
Jan 2025
HOLDINGS NOW
622,213
AVG SELL PX
$2.95
TRADE KIND
SHOWING 7 / 7
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
4 backtested trades · 8 horizons · 9 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Gregory S. Martini, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d4+50.00%+9.69%+0.46%+9.23%+4.48%
14d4+50.00%+11.96%-0.58%+12.54%+1.03%
30d4+75.00%-1.98%-3.73%+1.76%-8.06%
60d4+25.00%+12.86%-0.07%+12.93%+0.00%
90d4+25.00%+37.60%+1.92%+69.30%+69.30%
180d4(2 pending)+50.00%+196.85%+7.13%+189.72%+189.72%
1y4(3 pending)+0.00%+159.32%+14.77%+144.55%+144.55%
2y4(4 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
IRWD · 297,213 shares · as of Mar 10, 2026
074,303148,607222,910297,2132026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2025
2025
2025
2025
2026
2026
FLOW · 3 buys / 4 sellsCOVERAGE · 6 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
KYTX
KYVERNA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
325,000325,000May 18, 2026May 20, 2026View →
IRWD
IRONWOOD PHARMACEUTICALS INC
PURCHASEGRANT
Stock grant
136,612297,213Mar 10, 2026Mar 12, 2026View →
IRWD
IRONWOOD PHARMACEUTICALS INC
SALE
Chief Financial Officer
11,457$3.66$41.9K160,601Feb 24, 2026Feb 25, 2026View →
IRWD
IRONWOOD PHARMACEUTICALS INC
SALE
Chief Financial Officer
10,487$3.81$40.0K172,058Feb 23, 2026Feb 25, 2026View →
IRWD
IRONWOOD PHARMACEUTICALS INC
SALE
Chief Financial Officer
1,265$0.84$1.1K182,545Aug 11, 2025Aug 13, 2025View →
IRWD
IRONWOOD PHARMACEUTICALS INC
SALE
Chief Financial Officer
12,052$1.76$21.2K183,810Feb 10, 2025Feb 12, 2025View →
IRWD
IRONWOOD PHARMACEUTICALS INC
PURCHASEGRANT
Stock grant
111,111195,862Jan 27, 2025Jan 29, 2025View →
Other insiders · IRWD
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About this filer
CIK 0002053936
ROLE
Chief Financial Officer
PRIMARY
IRWD
COMPANIES
2
ACTIVE SINCE
Jan 2025
MARKETPEEL · /INSIDER/0002053936DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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