Kiniksa Pharmaceuticals International, plc
KNSA · Pharmaceutical Preparations · 71.9M shares · +7%/yr ↑ shares · EDGAR filings ↗
Reference price $53.52 · est. market cap ~$3.8B — last insider sale, 2026-05-01 (estimated from the dated SEC Form 4 price × shares outstanding — not a live quote)
Grade
B78Profitable, cash-generative commercial rare-disease pharma (ARCALYST) with top-decile returns for the sector and a de-risked GCA proof-of-concept.
Strengths
- ROA 7.7% (92nd pct), net margin 8.7% (82nd), FCF margin 20% (87th) — genuinely profitable with $414M cash
- Revenue +60% (77th pct); positive GCA Phase 2 (HR 0.38, p=0.026) supports pipeline optionality
Risks
- Net income growth -2.37 (3rd pct) — earnings fell sharply year over year
- Single-product dependence on ARCALYST plus an ongoing Regeneron-to-Samsung manufacturing tech transfer; COVID Phase 3 failed
Notable findings
Quarterly revenue
Last 4 quarters · from SEC filings.
Key metrics
Gross margin
88.5%
Operating margin
11.4%
Net margin
8.7%
Return on equity
10.4%
Return on assets
7.7%
Revenue growth (QoQ)
6.0%
Current ratio
3.8×
Free cash flow
$136M
EBITDA
$79M
Tangible book value
$552M
Cash & investments
$414M
Stock comp / revenue
5.5%
Insider transactions · last 18 months
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| 2026-06-01 | Patel Sanj K | Conversion | 900K | — |
| 2026-05-29 | Cole G Bradley | Option exercise | 2.8K | — |
| 2026-05-29 | Quart Barry D | Option exercise | 2.8K | — |
| 2026-05-29 | Popovits Kimberly J | Option exercise | 2.8K | — |
| 2026-05-29 | BAKER BROS. ADVISORS LP | Grant | 6.1K | — |
| 2026-05-29 | BAKER BROS. ADVISORS LP | Grant | 6.1K | — |
| 2026-05-29 | Levy Richard S | Option exercise | 2.8K | — |
| 2026-05-29 | Malley Thomas | Option exercise | 2.8K | — |
| 2026-05-29 | McCain Tracey L | Option exercise | 2.8K | — |
| 2026-05-01 | Paolini John F. | Sell | 37K | $53.52 |
| 2026-05-01 | Patel Sanj K | Option exercise | 49K | $30.93 |
| 2026-05-01 | Paolini John F. | Sell | 21K | $54.04 |
| 2026-05-01 | Patel Sanj K | Sell | 49K | $54.02 |
| 2026-05-01 | Paolini John F. | Option exercise | 58K | $10.36 |
| 2026-04-30 | Patel Sanj K | Option exercise | 2.1K | $30.93 |
| 2026-04-30 | Patel Sanj K | Sell | 2.1K | $54.01 |
| 2026-04-29 | Patel Sanj K | Sell | 23K | $54.01 |
| 2026-04-29 | Patel Sanj K | Option exercise | 23K | $30.93 |
| 2026-04-28 | Patel Sanj K | Sell | 114K | $51.47 |
| 2026-04-28 | Patel Sanj K | Option exercise | 432K | $10.36 |
| 2026-04-28 | Patel Sanj K | Option exercise | 52K | $30.93 |
| 2026-04-28 | Patel Sanj K | Sell | 75K | $50.43 |
| 2026-04-28 | Patel Sanj K | Sell | 244K | $52.02 |
| 2026-04-28 | Patel Sanj K | Sell | 52K | $54.02 |
| 2026-04-28 | Quart Barry D | Option exercise | 13K | $14.33 |
| 2026-04-28 | Quart Barry D | Sell | 13K | $50.10 |
| 2026-04-09 | Megna Michael R | Sell | 6.6K | $46.69 |
| 2026-04-09 | Moat Ross | Sell | 1.7K | $46.69 |
| 2026-04-07 | Tessari Eben | Tax withheld | 846 | $48.94 |
| 2026-04-07 | Moat Ross | Option exercise | 2.5K | — |
| 2026-04-07 | Moat Ross | Tax withheld | 774 | $48.94 |
| 2026-04-07 | Ragosa Mark | Option exercise | 2.7K | — |
| 2026-04-07 | Ragosa Mark | Tax withheld | 1.3K | $48.94 |
| 2026-04-07 | Paolini John F. | Option exercise | 2.5K | — |
| 2026-04-07 | Tessari Eben | Option exercise | 2.7K | — |
| 2026-04-07 | Paolini John F. | Tax withheld | 1.2K | $48.94 |
| 2026-04-07 | Patel Sanj K | Option exercise | 10.0K | — |
| 2026-04-07 | Patel Sanj K | Tax withheld | 4.8K | $48.94 |
| 2026-04-07 | Megna Michael R | Option exercise | 3.9K | $1.00 |
| 2026-04-07 | Megna Michael R | Tax withheld | 1.7K | $48.94 |
| 2026-04-06 | Moat Ross | Sell | 2.4K | $48.58 |
| 2026-04-06 | Quart Barry D | Sell | 6.9K | $50.00 |
| 2026-04-06 | Patel Sanj K | Option exercise | 7.3K | $10.36 |
| 2026-04-06 | Patel Sanj K | Sell | 7.3K | $50.01 |
| 2026-04-06 | Quart Barry D | Option exercise | 6.9K | $14.33 |
| 2026-04-01 | Patel Sanj K | Tax withheld | 10K | $48.13 |
| 2026-04-01 | Tessari Eben | Option exercise | 6.0K | — |
| 2026-04-01 | Tessari Eben | Tax withheld | 1.8K | $48.13 |
| 2026-04-01 | Moat Ross | Option exercise | 5.8K | — |
| 2026-04-01 | Moat Ross | Tax withheld | 1.7K | $48.13 |
| 2026-04-01 | Ragosa Mark | Option exercise | 5.2K | — |
| 2026-04-01 | Ragosa Mark | Tax withheld | 2.5K | $48.13 |
| 2026-04-01 | Paolini John F. | Option exercise | 5.8K | — |
| 2026-04-01 | Paolini John F. | Tax withheld | 2.8K | $48.13 |
| 2026-04-01 | Patel Sanj K | Option exercise | 21K | — |
| 2026-04-01 | Megna Michael R | Option exercise | 7.6K | — |
| 2026-04-01 | Megna Michael R | Tax withheld | 3.2K | $48.13 |
| 2026-03-09 | Ragosa Mark | Option exercise | 10K | $26.74 |
| 2026-03-09 | Ragosa Mark | Sell | 19K | $46.24 |
| 2026-03-09 | Ragosa Mark | Sell | 18K | $45.58 |
| 2026-03-09 | Ragosa Mark | Option exercise | 2.0K | $22.89 |
| 2026-03-09 | Ragosa Mark | Option exercise | 11K | $17.76 |
| 2026-03-09 | Ragosa Mark | Option exercise | 14K | $18.06 |
| 2026-03-02 | Paolini John F. | Sell | 22K | $44.88 |
| 2026-03-02 | Paolini John F. | Sell | 12K | $44.20 |
| 2026-03-02 | Paolini John F. | Sell | 5.7K | $45.92 |
| 2026-03-02 | Paolini John F. | Option exercise | 40K | $10.36 |
| 2026-02-12 | Quart Barry D | Sell | 2.7K | $45.00 |
| 2026-02-12 | Quart Barry D | Option exercise | 2.7K | $15.47 |
| 2026-02-10 | Quart Barry D | Option exercise | 110 | $15.47 |
| 2026-02-10 | Quart Barry D | Sell | 110 | $45.00 |
| 2026-02-09 | Ragosa Mark | Option exercise | 8.4K | $12.97 |
| 2026-02-09 | Ragosa Mark | Sell | 9.1K | $42.85 |
| 2026-02-09 | Ragosa Mark | Sell | 8.7K | $43.72 |
| 2026-02-09 | Ragosa Mark | Option exercise | 2.5K | $16.90 |
| 2026-02-04 | Quart Barry D | Sell | 2.6K | $45.02 |
| 2026-02-04 | Quart Barry D | Option exercise | 2.6K | $15.47 |
| 2026-02-03 | Quart Barry D | Sell | 13K | $45.27 |
| 2026-02-03 | Quart Barry D | Option exercise | 13K | $15.47 |
| 2026-02-02 | Quart Barry D | Option exercise | 830 | $15.47 |
| 2026-02-02 | Quart Barry D | Sell | 830 | $45.00 |
| 2026-02-01 | Levy Richard S | Option exercise | 683 | — |
| 2026-01-15 | Tessari Eben | Grant | 365 | $24.16 |
| 2026-01-15 | Moat Ross | Grant | 879 | $24.16 |
| 2026-01-15 | Megna Michael R | Grant | 372 | $24.16 |
| 2026-01-08 | Ragosa Mark | Sell | 12K | $41.89 |
| 2025-12-15 | Quart Barry D | Option exercise | 20K | $10.36 |
| 2025-12-15 | Tessari Eben | Option exercise | 6.0K | $8.83 |
| 2025-12-15 | Tessari Eben | Sell | 12K | $41.56 |
| 2025-12-15 | Quart Barry D | Sell | 20K | $41.51 |
| 2025-12-08 | Ragosa Mark | Option exercise | 16K | $11.10 |
| 2025-12-08 | Ragosa Mark | Option exercise | 16K | $11.97 |
| 2025-12-08 | Ragosa Mark | Option exercise | 11K | $10.76 |
| 2025-12-08 | Ragosa Mark | Sell | 43K | $41.49 |
| 2025-11-26 | Tessari Eben | Option exercise | 200 | $22.89 |
| 2025-11-26 | Tessari Eben | Sell | 200 | $42.89 |
| 2025-11-17 | Tessari Eben | Option exercise | 6.5K | $8.83 |
| 2025-11-17 | Tessari Eben | Sell | 645 | $40.08 |
| 2025-11-17 | Tessari Eben | Sell | 12K | $41.30 |
| 2025-11-13 | Patel Sanj K | Gift | 60K | — |
| 2025-11-13 | Patel Sanj K | Gift | 60K | — |
| 2025-11-12 | Patel Sanj K | Gift | 112K | — |
| 2025-11-12 | Patel Sanj K | Gift | 112K | — |
| 2025-11-12 | Ragosa Mark | Option exercise | 20K | $30.93 |
| 2025-11-12 | Ragosa Mark | Sell | 20K | $40.94 |
| 2025-10-31 | Paolini John F. | Option exercise | 37K | $3.80 |
| 2025-10-31 | Paolini John F. | Option exercise | 46K | $8.83 |
| 2025-10-31 | Paolini John F. | Sell | 83K | $37.14 |
| 2025-10-28 | Ragosa Mark | Option exercise | 100 | $30.93 |
| 2025-10-28 | Ragosa Mark | Sell | 100 | $41.00 |
| 2025-10-22 | Patel Sanj K | Sell | 97K | $38.83 |
| 2025-10-22 | Patel Sanj K | Option exercise | 97K | $3.80 |
| 2025-10-21 | Patel Sanj K | Sell | 39K | $38.77 |
| 2025-10-21 | Patel Sanj K | Option exercise | 39K | $3.80 |
| 2025-10-20 | Patel Sanj K | Sell | 22K | $39.32 |
| 2025-10-20 | Patel Sanj K | Sell | 99K | $38.81 |
| 2025-10-20 | Patel Sanj K | Option exercise | 121K | $3.80 |
| 2025-10-20 | Megna Michael R | Option exercise | 791 | $15.50 |
| 2025-10-20 | Megna Michael R | Option exercise | 6.2K | $12.97 |
| 2025-10-20 | Megna Michael R | Option exercise | 9.8K | $11.10 |
| 2025-10-20 | Megna Michael R | Option exercise | 9.8K | $11.97 |
| 2025-10-20 | Megna Michael R | Option exercise | 13K | $10.76 |
| 2025-10-20 | Megna Michael R | Sell | 37K | $38.72 |
| 2025-10-20 | Megna Michael R | Sell | 13K | $39.31 |
| 2025-10-14 | Tessari Eben | Option exercise | 6.5K | $8.83 |
| 2025-10-14 | Tessari Eben | Sell | 12K | $37.65 |
| 2025-10-14 | Tessari Eben | Sell | 553 | $37.99 |
| 2025-10-04 | Megna Michael R | Option exercise | 175 | — |
| 2025-10-04 | Megna Michael R | Tax withheld | 85 | $38.49 |
| 2025-09-29 | Tessari Eben | Option exercise | 42K | $17.92 |
| 2025-09-29 | Tessari Eben | Sell | 42K | $38.33 |
| 2025-09-15 | Tessari Eben | Option exercise | 6.5K | $8.83 |
| 2025-09-15 | Tessari Eben | Sell | 16K | $36.45 |
| 2025-09-15 | Tessari Eben | Sell | 356 | $37.00 |
| 2025-09-05 | Tessari Eben | Option exercise | 13K | $15.52 |
| 2025-09-05 | Tessari Eben | Sell | 13K | $35.66 |
| 2025-09-04 | Moat Ross | Sell | 3.5K | $35.31 |
| 2025-09-04 | Tessari Eben | Option exercise | 47K | $15.52 |
| 2025-09-04 | Tessari Eben | Sell | 85K | $35.52 |
| 2025-09-04 | Tessari Eben | Option exercise | 39K | $15.50 |
| 2025-09-03 | Tessari Eben | Sell | 15K | $35.50 |
| 2025-09-03 | Megna Michael R | Option exercise | 11K | $17.92 |
| 2025-09-03 | Megna Michael R | Sell | 11K | $34.84 |
| 2025-09-03 | Tessari Eben | Option exercise | 65 | $15.52 |
| 2025-09-03 | Tessari Eben | Option exercise | 15K | $15.50 |
| 2025-09-02 | Megna Michael R | Option exercise | 774 | — |
| 2025-09-02 | Megna Michael R | Tax withheld | 375 | $34.28 |
| 2025-09-02 | Patel Sanj K | Option exercise | 6.6K | — |
| 2025-09-02 | Moat Ross | Option exercise | 994 | — |
| 2025-09-02 | Ragosa Mark | Option exercise | 1.9K | — |
| 2025-09-02 | Ragosa Mark | Tax withheld | 900 | $34.28 |
| 2025-09-02 | Moat Ross | Tax withheld | 481 | $34.28 |
| 2025-09-02 | Tessari Eben | Tax withheld | 950 | $34.28 |
| 2025-09-02 | Patel Sanj K | Tax withheld | 3.2K | $34.28 |
| 2025-09-02 | Tessari Eben | Option exercise | 2.0K | — |
| 2025-09-02 | Paolini John F. | Option exercise | 1.7K | — |
| 2025-09-02 | Paolini John F. | Tax withheld | 835 | $34.28 |
| 2025-09-01 | Patel Sanj K | Option exercise | 6.5K | — |
| 2025-09-01 | Patel Sanj K | Option exercise | 10.0K | — |
| 2025-09-01 | Patel Sanj K | Tax withheld | 11K | $33.49 |
| 2025-09-01 | Patel Sanj K | Option exercise | 6.2K | — |
| 2025-09-01 | Tessari Eben | Option exercise | 1.7K | — |
| 2025-09-01 | Tessari Eben | Option exercise | 1.8K | — |
| 2025-09-01 | Tessari Eben | Option exercise | 2.7K | — |
| 2025-09-01 | Tessari Eben | Tax withheld | 3.0K | $33.49 |
| 2025-09-01 | Megna Michael R | Option exercise | 2.4K | — |
| 2025-09-01 | Megna Michael R | Option exercise | 2.6K | — |
| 2025-09-01 | Megna Michael R | Option exercise | 3.9K | — |
| 2025-09-01 | Megna Michael R | Tax withheld | 4.3K | $33.49 |
| 2025-09-01 | Moat Ross | Option exercise | 1.7K | — |
| 2025-09-01 | Moat Ross | Option exercise | 1.6K | — |
| 2025-09-01 | Moat Ross | Option exercise | 2.5K | — |
| 2025-09-01 | Moat Ross | Tax withheld | 2.8K | $33.49 |
| 2025-09-01 | Paolini John F. | Option exercise | 1.8K | — |
| 2025-09-01 | Paolini John F. | Option exercise | 1.6K | — |
| 2025-09-01 | Paolini John F. | Option exercise | 2.5K | — |
| 2025-09-01 | Paolini John F. | Tax withheld | 2.8K | $33.49 |
| 2025-09-01 | Ragosa Mark | Option exercise | 1.6K | — |
| 2025-09-01 | Ragosa Mark | Option exercise | 1.8K | — |
| 2025-09-01 | Ragosa Mark | Option exercise | 2.7K | — |
| 2025-09-01 | Ragosa Mark | Tax withheld | 2.9K | $33.49 |
| 2025-08-18 | Tessari Eben | Option exercise | 6.5K | $8.83 |
| 2025-08-18 | Tessari Eben | Sell | 16K | $33.77 |
| 2025-08-18 | Tessari Eben | Sell | 100 | $34.44 |
| 2025-08-14 | Malley Thomas | Option exercise | 33K | $14.33 |
| 2025-08-14 | Malley Thomas | Option exercise | 26K | $15.19 |
| 2025-08-14 | Malley Thomas | Option exercise | 19K | $15.47 |
| 2025-08-14 | Malley Thomas | Sell | 78K | $33.09 |
| 2025-08-13 | Malley Thomas | Option exercise | 20K | $10.36 |
| 2025-08-13 | Malley Thomas | Sell | 50K | $33.32 |
| 2025-08-13 | Malley Thomas | Option exercise | 30K | $9.88 |
| 2025-08-12 | Malley Thomas | Option exercise | 22K | $1.86 |
| 2025-08-12 | Malley Thomas | Sell | 49K | $32.40 |
| 2025-08-12 | Malley Thomas | Option exercise | 27K | $3.80 |
| 2025-08-06 | Paolini John F. | Option exercise | 29K | $3.80 |
| 2025-08-06 | Paolini John F. | Sell | 29K | $32.55 |
| 2025-08-05 | Tessari Eben | Sell | 138K | $33.20 |
| 2025-08-05 | Tessari Eben | Option exercise | 39K | $10.36 |
| 2025-08-05 | Tessari Eben | Option exercise | 30K | $12.97 |
| 2025-08-05 | Tessari Eben | Option exercise | 33K | $11.10 |
| 2025-08-05 | Tessari Eben | Option exercise | 26K | $11.97 |
| 2025-08-05 | Tessari Eben | Option exercise | 11K | $10.76 |
| 2025-08-05 | Tessari Eben | Sell | 550 | $33.90 |
| 2025-08-04 | Megna Michael R | Sell | 17K | $32.35 |
| 2025-08-04 | Ragosa Mark | Option exercise | 19K | $22.89 |
| 2025-08-04 | Ragosa Mark | Sell | 19K | $32.89 |
| 2025-08-04 | Megna Michael R | Option exercise | 17K | $15.52 |
| 2025-07-30 | Popovits Kimberly J | Option exercise | 65K | $29.90 |
| 2025-07-30 | Popovits Kimberly J | Option exercise | 46K | $10.36 |
| 2025-07-30 | Popovits Kimberly J | Option exercise | 19K | $15.47 |
| 2025-07-15 | Megna Michael R | Grant | 495 | $15.63 |
| 2025-07-15 | Tessari Eben | Grant | 752 | $15.63 |
| 2025-07-14 | Tessari Eben | Option exercise | 6.5K | $8.83 |
| 2025-07-14 | Tessari Eben | Sell | 19K | $28.72 |
| 2025-07-01 | Levy Richard S | Option exercise | 1.1K | — |
| 2025-06-16 | Tessari Eben | Option exercise | 6.5K | $8.83 |
| 2025-06-16 | Tessari Eben | Sell | 17K | $28.28 |
| 2025-06-11 | Tessari Eben | Sell | 45K | $30.51 |
| 2025-06-11 | Quart Barry D | Option exercise | 12K | $3.80 |
| 2025-06-11 | Quart Barry D | Sell | 12K | $30.39 |
| 2025-06-11 | Tessari Eben | Option exercise | 45K | $10.36 |
| 2025-06-10 | Quart Barry D | Sell | 8.2K | $30.36 |
| 2025-06-10 | Tessari Eben | Option exercise | 16K | $10.36 |
| 2025-06-10 | Quart Barry D | Option exercise | 8.2K | $3.80 |
| 2025-06-10 | Tessari Eben | Sell | 16K | $30.46 |
| 2025-06-09 | Quart Barry D | Sell | 6.9K | $30.26 |
| 2025-06-09 | Quart Barry D | Option exercise | 6.9K | $3.80 |
| 2025-06-09 | Tessari Eben | Option exercise | 10K | $10.36 |
| 2025-06-09 | Tessari Eben | Sell | 10K | $30.38 |
| 2025-06-05 | McCain Tracey L | Option exercise | 3.2K | — |
| 2025-06-05 | Cole G Bradley | Option exercise | 3.2K | — |
| 2025-06-05 | Levy Richard S | Option exercise | 3.2K | — |
| 2025-06-05 | Malley Thomas | Option exercise | 3.2K | — |
| 2025-06-05 | Popovits Kimberly J | Option exercise | 3.2K | — |
| 2025-06-05 | Quart Barry D | Option exercise | 3.2K | — |
| 2025-06-03 | Megna Michael R | Sell | 15K | $28.75 |
| 2025-06-03 | Megna Michael R | Option exercise | 15K | $15.50 |
| 2025-06-03 | Moat Ross | Option exercise | 28K | $13.35 |
| 2025-06-03 | Moat Ross | Sell | 28K | $29.02 |
| 2025-06-03 | Ragosa Mark | Option exercise | 18K | $18.00 |
| 2025-06-03 | Ragosa Mark | Sell | 18K | $28.80 |
| 2025-06-03 | BAKER BROS. ADVISORS LP | Grant | 8.4K | — |
| 2025-06-03 | BAKER BROS. ADVISORS LP | Grant | 8.4K | — |
| 2025-05-28 | Patel Sanj K | Sell | 62K | $27.33 |
| 2025-05-28 | Patel Sanj K | Option exercise | 62K | $1.59 |
| 2025-05-27 | Patel Sanj K | Sell | 19K | $27.01 |
| 2025-05-27 | Patel Sanj K | Option exercise | 19K | $1.59 |
| 2025-05-23 | Patel Sanj K | Sell | 4.8K | $27.00 |
| 2025-05-23 | Patel Sanj K | Option exercise | 4.8K | $1.59 |
| 2025-05-20 | Patel Sanj K | Option exercise | 2.3K | $1.59 |
| 2025-05-20 | Patel Sanj K | Sell | 2.3K | $27.02 |
| 2025-05-19 | Tessari Eben | Option exercise | 7.0K | $3.80 |
| 2025-05-19 | Tessari Eben | Sell | 12K | $26.41 |
| 2025-05-13 | Patel Sanj K | Option exercise | 2.9K | $1.59 |
| 2025-05-13 | Patel Sanj K | Sell | 2.9K | $27.03 |
| 2025-05-09 | Patel Sanj K | Sell | 6.0K | $27.05 |
| 2025-05-09 | Patel Sanj K | Option exercise | 6.0K | $1.59 |
| 2025-05-08 | Patel Sanj K | Option exercise | 101 | $1.59 |
| 2025-05-08 | Patel Sanj K | Sell | 101 | $27.00 |
| 2025-05-07 | Patel Sanj K | Sell | 2.0K | $27.00 |
| 2025-05-07 | Patel Sanj K | Option exercise | 2.0K | $1.59 |
| 2025-05-07 | Paolini John F. | Option exercise | 200 | $3.80 |
| 2025-05-07 | Paolini John F. | Sell | 200 | $27.00 |
| 2025-05-07 | Megna Michael R | Option exercise | 229 | $8.83 |
| 2025-05-07 | Megna Michael R | Option exercise | 3.0K | $15.50 |
| 2025-05-07 | Megna Michael R | Option exercise | 14K | $11.97 |
| 2025-05-07 | Megna Michael R | Sell | 18K | $26.69 |
| 2025-05-05 | Moat Ross | Option exercise | 6.3K | $17.76 |
| 2025-05-05 | Moat Ross | Sell | 6.3K | $28.00 |
| 2025-05-02 | Moat Ross | Option exercise | 3.9K | $17.76 |
| 2025-05-02 | Moat Ross | Sell | 3.9K | $28.00 |
| 2025-05-01 | Moat Ross | Sell | 23K | $28.02 |
| 2025-05-01 | Ragosa Mark | Sell | 25K | $27.80 |
| 2025-05-01 | Ragosa Mark | Option exercise | 13K | $17.76 |
| 2025-05-01 | Ragosa Mark | Option exercise | 12K | $17.92 |
| 2025-05-01 | Moat Ross | Option exercise | 8.7K | $11.10 |
| 2025-05-01 | Moat Ross | Option exercise | 1.2K | $17.76 |
| 2025-05-01 | Moat Ross | Option exercise | 13K | $13.35 |
| 2025-04-30 | Ragosa Mark | Sell | 21K | $26.95 |
| 2025-04-30 | Ragosa Mark | Option exercise | 21K | $16.90 |
| 2025-04-29 | Moat Ross | Option exercise | 6.3K | $12.97 |
| 2025-04-29 | Moat Ross | Option exercise | 15K | $15.52 |
| 2025-04-29 | Moat Ross | Option exercise | 20K | $15.50 |
| 2025-04-29 | Moat Ross | Option exercise | 7.4K | $11.97 |
| 2025-04-29 | Moat Ross | Option exercise | 15K | $10.76 |
| 2025-04-29 | Moat Ross | Sell | 64K | $25.21 |
| 2025-04-29 | Ragosa Mark | Option exercise | 20K | $15.52 |
| 2025-04-29 | Ragosa Mark | Option exercise | 22K | $15.50 |
| 2025-04-29 | Ragosa Mark | Sell | 42K | $25.61 |
| 2025-04-26 | Ragosa Mark | Tax withheld | 479 | $21.36 |
| 2025-04-26 | Ragosa Mark | Option exercise | 990 | — |
| 2025-04-21 | Moat Ross | Sell | 18K | $20.29 |
| 2025-04-14 | Tessari Eben | Option exercise | 7.0K | $3.80 |
| 2025-04-14 | Tessari Eben | Sell | 5.6K | $20.19 |
| 2025-04-14 | Tessari Eben | Sell | 6.4K | $20.74 |
| 2025-04-07 | Paolini John F. | Tax withheld | 734 | $20.28 |
| 2025-04-07 | Moat Ross | Option exercise | 2.5K | — |
| 2025-04-07 | Moat Ross | Tax withheld | 727 | $20.28 |
| 2025-04-07 | Megna Michael R | Option exercise | 3.9K | — |
| 2025-04-07 | Megna Michael R | Tax withheld | 1.7K | $20.28 |
| 2025-04-07 | Tessari Eben | Tax withheld | 801 | $20.28 |
| 2025-04-07 | Tessari Eben | Option exercise | 2.7K | — |
| 2025-04-07 | Ragosa Mark | Option exercise | 2.7K | — |
| 2025-04-07 | Ragosa Mark | Tax withheld | 1.3K | $20.28 |
| 2025-04-07 | Patel Sanj K | Option exercise | 10.0K | — |
| 2025-04-07 | Patel Sanj K | Tax withheld | 4.8K | $20.28 |
| 2025-04-07 | Paolini John F. | Option exercise | 2.5K | — |
| 2025-04-01 | Patel Sanj K | Tax withheld | 2.3K | $21.77 |
| 2025-04-01 | Patel Sanj K | Tax withheld | 3.0K | $21.77 |
| 2025-04-01 | Megna Michael R | Option exercise | 2.6K | — |
| 2025-04-01 | Megna Michael R | Option exercise | 2.4K | — |
| 2025-04-01 | Megna Michael R | Tax withheld | 1.1K | $21.77 |
| 2025-04-01 | Megna Michael R | Tax withheld | 1.0K | $21.77 |
| 2025-04-01 | Ragosa Mark | Option exercise | 1.6K | — |
| 2025-04-01 | Moat Ross | Option exercise | 1.6K | — |
| 2025-04-01 | Moat Ross | Option exercise | 1.7K | — |
| 2025-04-01 | Moat Ross | Tax withheld | 473 | $21.77 |
| 2025-04-01 | Moat Ross | Tax withheld | 511 | $21.77 |
| 2025-04-01 | Paolini John F. | Option exercise | 1.6K | — |
| 2025-04-01 | Paolini John F. | Option exercise | 1.8K | — |
| 2025-04-01 | Paolini John F. | Tax withheld | 477 | $21.77 |
| 2025-04-01 | Paolini John F. | Tax withheld | 514 | $21.77 |
| 2025-04-01 | Ragosa Mark | Option exercise | 1.8K | — |
| 2025-04-01 | Ragosa Mark | Tax withheld | 847 | $21.77 |
| 2025-04-01 | Ragosa Mark | Tax withheld | 770 | $21.77 |
| 2025-04-01 | Tessari Eben | Option exercise | 1.8K | — |
| 2025-04-01 | Tessari Eben | Option exercise | 1.7K | — |
| 2025-04-01 | Tessari Eben | Tax withheld | 521 | $21.77 |
| 2025-04-01 | Tessari Eben | Tax withheld | 513 | $21.77 |
| 2025-04-01 | Patel Sanj K | Option exercise | 6.5K | — |
| 2025-04-01 | Patel Sanj K | Option exercise | 6.2K | — |
| 2025-03-20 | Ragosa Mark | Option exercise | 16K | $12.97 |
| 2025-03-20 | Ragosa Mark | Sell | 16K | $23.11 |
| 2025-03-19 | Ragosa Mark | Option exercise | 8.9K | $12.97 |
| 2025-03-19 | Ragosa Mark | Sell | 8.9K | $23.10 |
| 2025-03-17 | Ragosa Mark | Option exercise | 11K | $12.97 |
| 2025-03-17 | Ragosa Mark | Sell | 11K | $23.10 |
| 2025-03-16 | Tessari Eben | Tax withheld | 577 | $22.61 |
| 2025-03-16 | Ragosa Mark | Option exercise | 872 | — |
| 2025-03-16 | Ragosa Mark | Tax withheld | 448 | $22.61 |
| 2025-03-16 | Moat Ross | Option exercise | 994 | — |
| 2025-03-16 | Moat Ross | Tax withheld | 292 | $22.61 |
| 2025-03-16 | Megna Michael R | Option exercise | 774 | — |
| 2025-03-16 | Megna Michael R | Tax withheld | 328 | $22.61 |
| 2025-03-16 | Tessari Eben | Option exercise | 2.0K | — |
| 2025-03-16 | Patel Sanj K | Option exercise | 6.6K | — |
| 2025-03-16 | Patel Sanj K | Tax withheld | 2.0K | $22.61 |
| 2025-03-16 | Paolini John F. | Option exercise | 1.7K | — |
| 2025-03-16 | Paolini John F. | Tax withheld | 507 | $22.61 |
| 2025-03-12 | Megna Michael R | Option exercise | 9.1K | $11.10 |
| 2025-03-12 | Megna Michael R | Sell | 9.1K | $22.45 |
| 2025-03-12 | Ragosa Mark | Option exercise | 36K | $11.97 |
| 2025-03-12 | Ragosa Mark | Sell | 36K | $22.25 |
| 2025-03-10 | Tessari Eben | Sell | 12K | $21.06 |
| 2025-03-10 | Tessari Eben | Option exercise | 7.0K | $3.80 |
| 2025-02-10 | Tessari Eben | Option exercise | 7.0K | $3.80 |
| 2025-02-10 | Tessari Eben | Sell | 14K | $19.57 |
| 2025-01-15 | Megna Michael R | Grant | 469 | $16.00 |
| 2025-01-15 | Moat Ross | Grant | 1.1K | $16.00 |
| 2025-01-13 | Tessari Eben | Option exercise | 7.0K | $3.80 |
| 2025-01-13 | Tessari Eben | Sell | 1.7K | $19.08 |
| 2025-01-13 | Tessari Eben | Sell | 12K | $18.13 |
All non-derivative Form 4 activity (SEC), newest first.
Clinical trials
| Trial | Title | Phase | Status | Primary completion |
|---|---|---|---|---|
| NCT04687358 ↗ | REgiStry Of the NAtural History of recurreNt periCarditis in pEdiatric and Adult Patients Recurrent Pericarditis | — | Active Not Recruiting | 2029-03-01 |
| NCT07288216 ↗ | Transition to KPL-387 Monotherapy Dosing & Administration Study Recurrent Pericarditis, Heart Diseases | PHASE2 | Recruiting | 2027-12-31 |
| NCT07010159 ↗ | Phase 2/3 Study of KPL-387 in Recurrent Pericarditis Pericarditis, Pericarditis Acute | PHASE2/PHASE3 | Recruiting | 2027-12-31 |
| NCT06531395 ↗ | A Study to Evaluate the Efficacy and Safety of Abiprubart in Participants With Sjögren's Disease Sjögrens Disease | PHASE2 | Terminated | 2025-03-06 |
| NCT05198310 ↗ | Study to Assess the Safety, Pharmacokinetics, and Efficacy of KPL-404 in Participants With Rheumatoid Arthritis With Inadequate Response or Intolerance to at Least One Biologic Disease-modifying Anti-rheumatic Drug or a Janus Kinase Inhibitor Arthritis, Rheumatoid | PHASE2 | Completed | 2024-02-08 |
| NCT04447469 ↗ | Study of Mavrilimumab (KPL-301) in Participants Hospitalized With Severe Corona Virus Disease 2019 (COVID-19) Pneumonia and Hyper-inflammation COVID | PHASE2/PHASE3 | Completed | 2021-11-12 |
| NCT04497662 ↗ | Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single Ascending Doses of KPL-404 in Healthy Subjects Healthy Volunteers | PHASE1 | Completed | 2021-01-21 |
| NCT03827018 ↗ | KPL-301 for Subjects With Giant Cell Arteritis Giant Cell Arteritis | PHASE2 | Completed | 2020-08-13 |
Source: ClinicalTrials.gov (U.S. NIH) · active studies first.
Notable events (8-K)
Recent filings
| Form | Filed | Period | Accession |
|---|---|---|---|
| 8-K | 2026-05-29 | 2026-05-29 | 0001730430-26-000029 ↗ |
| 8-K | 2026-05-26 | 2026-05-21 | 0001730430-26-000025 ↗ |
| 8-K | 2026-05-01 | 2026-04-30 | 0001730430-26-000021 ↗ |
| 10-Q | 2026-04-28 | 2026-03-31 | 0001104659-26-050359 ↗ |
| 8-K | 2026-04-28 | 2026-04-28 | 0001730430-26-000017 ↗ |
| 8-K | 2026-02-24 | 2026-02-24 | 0001730430-26-000014 ↗ |
| 10-K | 2026-02-24 | 2025-12-31 | 0001104659-26-019168 ↗ |
| 8-K | 2026-01-14 | 2026-01-10 | 0001730430-26-000010 ↗ |
| 8-K | 2026-01-12 | 2026-01-12 | 0001730430-26-000005 ↗ |
| 10-Q | 2025-10-28 | 2025-09-30 | 0001104659-25-103180 ↗ |
| 8-K | 2025-10-28 | 2025-10-28 | 0001104659-25-102834 ↗ |
| 8-K | 2025-09-03 | 2025-09-03 | 0001104659-25-086689 ↗ |