Barry D Quart insider trades: Kiniksa Pharmaceuticals International (KNSA) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Barry reports to the SEC
and 1 more company
Open-market buys and sales
26 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 28, 2026 | KNSA | ↓ Sell | 13,099 | $50.10 | $656K | Direct | Apr 29, 2026 (1d) |
| Apr 6, 2026 | KNSA | ↓ Sell | 6,901 | $50.00 | $345K | Direct | Apr 8, 2026 (2d) |
| Feb 12, 2026 | KNSA | ↓ Sell | 2,800 | $45.00 | $126K | Direct | Feb 12, 2026 (0d) |
| Feb 4, 2026 | KNSA | ↓ Sell | 15,960 | $45.22 | $722K | Direct | Feb 4, 2026 (0d) |
| Dec 15, 2025 | KNSA | ↓ Sell | 20,129 | $41.51 | $836K | Direct | Dec 17, 2025 (2d) |
| Jun 11, 2025 | KNSA | ↓ Sell | 27,448 | $30.35 | $833K | Direct | Jun 11, 2025 (0d) |
| Nov 29, 2022 | KNSA | ↓ Sell | 21,959 | $16.15 | $355K | Direct | Dec 1, 2022 (2d) |
| Oct 3, 2019 | HRTX | ↑ Buy | 4,571 | $17.50 | $80K | Direct | Oct 4, 2019 (1d) |
| Jun 21, 2018 | HRTX | ↓ Sell | 50,000 | $39.05 | $2.0M | Direct | Jun 22, 2018 (1d) |
| Mar 19, 2018 | HRTX | ↓ Sell | 100,000 | $29.75 | $3.0M | Direct | Mar 19, 2018 (0d) |
| Mar 14, 2018 | HRTX | ↓ Sell | 100,000 | $24.75 | $2.5M | Direct | Mar 16, 2018 (2d) |
| Mar 2, 2015 | HRTX | ↓ Sell | 10,000 | $13.07 | $131K | Direct | Mar 4, 2015 (2d) |
| Jun 25, 2014 | HRTX | ↑ Buy | 10,000 | $11.75 | $118K | Direct | Jun 26, 2014 (1d) |
| Jun 20, 2014 | GEVA | ↓ Sell | 1,375 | $100.00 | $138K | Direct | Jun 24, 2014 (4d) |
| Jun 17, 2014 | GEVA | ↓ Sell | 1,000 | $90.00 | $90K | Direct | Jun 19, 2014 (2d) |
| Jun 12, 2014 | GEVA | ↓ Sell | 1,000 | $83.31 | $83K | Direct | Jun 16, 2014 (4d) |
| Nov 20, 2013 | APPA | ↑ Buy | 1,000,000 | $0.40 | $400K | Direct | Nov 21, 2013 (1d) |
| May 9, 2011 | RDEA | ↓ Sell | 20,000 | $27.20 | $544K | Direct | May 11, 2011 (2d) |
| Feb 7, 2011 | RDEA | ↓ Sell | 20,000 | $26.77 | $535K | Direct | Feb 9, 2011 (2d) |
| Dec 8, 2010 | RDEA | ↓ Sell | 20,000 | $21.92 | $438K | Direct | Dec 10, 2010 (2d) |
| Aug 9, 2010 | RDEA | ↓ Sell | 20,000 | $20.21 | $404K | Direct | Aug 10, 2010 (1d) |
| May 7, 2010 | RDEA | ↓ Sell | 25,000 | $21.20 | $530K | Direct | May 7, 2010 (0d) |
| Feb 8, 2010 | RDEA | ↓ Sell | 25,000 | $14.57 | $364K | Direct | Feb 10, 2010 (2d) |
| Dec 9, 2009 | RDEA | ↓ Sell | 25,000 | $14.48 | $362K | Direct | Dec 11, 2009 (2d) |
| Aug 11, 2009 | RDEA | ↓ Sell | 25,000 | $19.33 | $483K | Direct | Aug 13, 2009 (2d) |
| May 19, 2009 | RDEA | ↓ Sell | 25,000 | $15.39 | $385K | Direct | May 21, 2009 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other KNSA insiders
Open-market trades in the last 12 months
About Barry D Quart's insider trades
Barry D Quart is an insider at Kiniksa Pharmaceuticals International (KNSA). Since May 19, 2009, Barry has reported 3 open-market purchases worth $597K and 23 sales worth $15.8M on SEC Form 4. In the last 12 months: 5 sales ($2.7M).
Their filings also include option exercises (45 filings), grants and awards (36 filings), other transactions (11 filings), shares withheld for taxes (9 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every KNSA insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.