Kiniksa Pharmaceuticals International (KNSA) Insider Trading & Ownership $38.64 -0.28 (-0.72%) Closing price 10/17/2025 04:00 PM EasternExtended Trading$38.63 -0.01 (-0.03%) As of 10/17/2025 04:10 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Kiniksa Pharmaceuticals International (NASDAQ:KNSA) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage53.48%Number OfInsiders Buying(Last 12 Months)0Number OfInsiders Selling(Last 12 Months)8Amount OfInsider Selling(Last 12 Months)$35.23M Get KNSA Insider Trade Alerts Want to know when executives and insiders are buying or selling Kiniksa Pharmaceuticals International stock? 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KNSA Insider Buying and Selling by Quarter Kiniksa Pharmaceuticals International Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame Start Date End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails10/14/2025Eben TessariCOOSell12,368$37.67$465,902.56 9/29/2025Eben TessariCOOSell42,000$38.33$1,609,860.00 9/15/2025Eben TessariCOOSell16,400$36.46$597,944.00 9/5/2025Eben TessariCOOSell13,389$35.66$477,451.74 9/4/2025Eben TessariCOOSell85,271$35.52$3,028,825.92 9/4/2025Ross MoatInsiderSell3,523$35.31$124,397.13 9/3/2025Eben TessariCOOSell15,091$35.50$535,730.50 9/3/2025Michael R MegnaCAOSell11,000$34.84$383,240.00 8/18/2025Eben TessariCOOSell16,200$33.77$547,074.00 8/14/2025Thomas MalleyDirectorSell78,233$33.09$2,588,729.97 Get Insider Trades Delivered To Your InboxEnter your email address below to receive a concise daily summary of insider buying activity, insider selling activity and changes in hedge fund holdings. 8/13/2025Thomas MalleyDirectorSell50,129$33.32$1,670,298.28 8/12/2025Thomas MalleyDirectorSell49,407$32.40$1,600,786.80 8/6/2025John F PaoliniInsiderSell29,325$32.55$954,528.75 8/5/2025Eben TessariCOOSell138,614$33.20$4,601,984.80 8/4/2025Mark RagosaCFOSell18,889$32.89$621,259.21 8/4/2025Michael R MegnaCAOSell17,000$32.35$549,950.00 7/14/2025Eben TessariCOOSell18,900$28.72$542,808.00 6/16/2025Eben TessariCOOSell17,300$28.28$489,244.00 6/11/2025Barry D QuartDirectorSell12,336$30.39$374,891.04 6/11/2025Eben TessariCOOSell45,042$30.51$1,374,231.42 6/10/2025Barry D QuartDirectorSell8,212$30.36$249,316.32 6/10/2025Eben TessariCOOSell15,506$30.46$472,312.76 6/9/2025Barry D QuartDirectorSell6,900$30.26$208,794.00 6/9/2025Eben TessariCOOSell10,319$30.38$313,491.22 6/3/2025Mark RagosaCFOSell18,299$28.80$527,011.20 6/3/2025Michael R MegnaCAOSell15,211$28.75$437,316.25 6/3/2025Ross MoatInsiderSell27,594$29.02$800,777.88 5/28/2025Sanj K PatelCEOSell62,116$27.33$1,697,630.28 5/27/2025Sanj K PatelCEOSell19,317$27.01$521,752.17 5/23/2025Sanj K PatelCEOSell4,837$27.00$130,599.00 5/19/2025Eben TessariCOOSell12,000$26.41$316,920.00 5/13/2025Sanj K PatelCEOSell2,872$27.03$77,630.16 5/8/2025Sanj K PatelCEOSell101$27.00$2,727.00 5/7/2025John F PaoliniInsiderSell200$27.00$5,400.00 5/7/2025Michael R MegnaCAOSell17,647$26.69$470,998.43 5/5/2025Ross MoatInsiderSell6,272$28.00$175,616.00 5/1/2025Ross MoatInsiderSell23,234$28.02$651,016.68 4/30/2025Mark RagosaCFOSell21,254$26.95$572,795.30 4/29/2025Ross MoatInsiderSell64,035$25.21$1,614,322.35 4/21/2025Ross MoatInsiderSell18,259$20.29$370,475.11 4/14/2025Eben TessariCOOSell12,000$20.48$245,760.00 3/19/2025Mark RagosaCFOSell8,879$23.10$205,104.90 3/17/2025Mark RagosaCFOSell11,464$23.10$264,818.40 3/12/2025Mark RagosaCFOSell36,372$22.25$809,277.00 3/12/2025Michael R MegnaCAOSell9,051$22.45$203,194.95 2/10/2025Eben TessariCOOSell14,000$19.57$273,980.00 1/13/2025Eben TessariCOOSell14,000$18.24$255,360.00 12/5/2024Mark RagosaCFOSell1,123$21.25$23,863.75 12/3/2024Mark RagosaCFOSell8,969$21.45$192,385.05 (Data available from 1/1/2013 forward) KNSA Insider Trading Activity - Frequently Asked Questions Who is on Kiniksa Pharmaceuticals International's Insider Roster? The list of insiders at Kiniksa Pharmaceuticals International includes Barry D Quart, Eben Tessari, John F Paolini, Mark Ragosa, Michael R Megna, Ross Moat, Sanj K Patel, and Thomas Malley. Learn more on insiders at KNSA. What percentage of Kiniksa Pharmaceuticals International stock is owned by insiders? 53.48% of Kiniksa Pharmaceuticals International stock is owned by insiders. Learn more on KNSA's insider holdings. Which Kiniksa Pharmaceuticals International insiders have been selling company stock? The following insiders have sold KNSA shares in the last 24 months: Barry D Quart ($833,001.36), Eben Tessari ($17,513,920.92), John F Paolini ($3,629,033.79), Mark Ragosa ($4,057,622.73), Michael R Megna ($2,861,359.70), Ross Moat ($3,736,605.15), Sanj K Patel ($6,312,966.79), and Thomas Malley ($5,859,815.05). How much insider selling is happening at Kiniksa Pharmaceuticals International? Insiders have sold a total of 1,555,219 Kiniksa Pharmaceuticals International shares in the last 24 months for a total of $44,804,325.49 sold. Kiniksa Pharmaceuticals International Key ExecutivesMr. Sanj K. Patel (Age 55)CEO & Chairman of the Board Compensation: $1.57M5 recent tradesMr. Eben Tessari (Age 42)Senior VP & COO Compensation: $733.29k14 recent tradesDr. John F. Paolini FACC (Age 59)M.D., Ph.D., Senior VP & Chief Medical Officer Compensation: $855.79kMr. Mark Ragosa C.F.A. (Age 50)Senior VP & CFO Mr. Michael R. Megna CPA (Age 53)Chief Accounting Officer & Group VP of Finance 4 recent tradesMr. Chad MorinSenior VP & Chief Compliance OfficerMs. Madelyn Demsky Zeylikman (Age 50)SVP, General Counsel & Secretary More Insider Trading Tools from MarketBeat Related Companies MRNA Insider Transactions ROIV Insider Transactions ELAN Insider Transactions BBIO Insider Transactions VRNA Insider Transactions RVMD Insider Transactions MRUS Insider Transactions RNA Insider Transactions GRFS Insider Transactions CYTK Insider Transactions Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles 3 Healthcare Companies Insiders Are Buying Marvell Insiders Buy Shares—Should Investors Follow Suit?This Insider Just Made a Massive Bet on Transocean's ComebackInsider Sales Jump at Broadcom and CoreWeave: Red Flag Ahead?Oklo Insiders Sell! 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