Barry D Quart
Chief Executive Officer, Director at Connect Biopharma Holdings Ltd (CNTB) since March 2026
Barry D Quart has filed 27 insider reports with the SEC since April 2021, as director at Kiniksa Pharmaceuticals International, plc (KNSA), chief Executive Officer and director at Connect Biopharma Holdings Ltd (CNTB) and officer and director at Heron Therapeutics, Inc. /de/ (HRTX). In the last 12 months Barry D Quart sold $2.68M of stock on the open market. The latest filing, on August 21, 2026, reports gift at Kiniksa Pharmaceuticals International, plc (KNSA).
- Filings
- 27
- Companies
- 3
- Bought on market
- None
- Sold on market
- $3.87M
Companies where Barry D Quart is an insider
| Company | Role | Shares held | Bought | Sold | Avg buy | Price now | Last filing |
|---|---|---|---|---|---|---|---|
| Director | 12,745 | $3.87M | $95.02 | Aug 21, 2026 | |||
| Chief Executive Officer, Directorsince March 2026 | 95,147 | $0.6822 | Mar 16, 2026 | ||||
| Officer, Director | 177,989 | $0.3741 | Jan 20, 2023 |
Shares held: common shares owned directly after the latest filing that states it. Avg buy: open-market purchase dollars divided by shares bought, every filing on record.
Every filing
- Aug 19, 2026KNSADirector Quart Barry D gifted 2,600 units of Class A Ordinary Share, decreasing direct ownership by 17% to 12,745 unitsForm 4Gift
- May 29, 2026KNSADirector Quart Barry D converted options into 2,799 units of Class A Ordinary Share, increasing direct ownership by 22% to 15,345 unitsForm 4Grant or awardExercise or conversion of a derivative
- Apr 28, 2026-$656KKNSADirector Quart Barry D exercised 13,099 units of Class A Ordinary Share at a strike of $14.33 and sold $656,260 worth of Class A Ordinary Share (13,099 units at $50.10) as part of a pre-agreed trading planForm 4Exercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Apr 6, 2026-$345KKNSASEC Form 4 filed by Quart Barry DForm 4Exercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Apr 6, 2026~$1MKNSABarry D Quart plans to sell 20,000 shares (~$1M)Form 144Planned sale10b5-1 plan
- Mar 16, 2026CNTBNew insider Quart Barry D claimed ownership of 224,034 units of Ordinary SharesForm 3New insider
- Feb 12, 2026-$126KKNSADirector Quart Barry D exercised 2,800 units of Class A Ordinary Share at a strike of $15.47 and sold $126,000 worth of Class A Ordinary Share (2,800 units at $45.00)Form 4Exercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Feb 4, 2026-$722KKNSADirector Quart Barry D exercised 15,960 units of Class A Ordinary Share at a strike of $15.47 and sold $721,635 worth of Class A Ordinary Share (15,960 units at $45.22)Form 4Exercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Dec 15, 2025-$836KKNSADirector Quart Barry D exercised 20,129 units of Class A Ordinary Share at a strike of $10.36 and sold $835,555 worth of Class A Ordinary Share (20,129 units at $41.51)Form 4Exercise or conversion of a derivativeOpen-market sale10b5-1 plan
- Dec 15, 2025~$2.44MKNSABarry D Quart plans to sell 58,889 shares (~$2.44M)Form 144Planned sale10b5-1 plan
- Jun 11, 2025-$833KKNSADirector Quart Barry D exercised 27,448 units of Class A Ordinary Share at a strike of $3.80 and sold $833,001 worth of Class A Ordinary Share (27,448 units at $30.35)Form 4Exercise or conversion of a derivativeOpen-market sale
- Jun 9, 2025~$831KKNSABarry D Quart plans to sell 27,448 shares (~$831K)Form 144Planned sale
- Jun 5, 2025KNSADirector Quart Barry D converted options into 3,173 units of Class A Ordinary Share, increasing direct ownership by 34% to 12,546 unitsForm 4Grant or awardExercise or conversion of a derivative
- Jun 6, 2024KNSAQuart Barry D converted options into 4,373 units of Class A Common Share, increasing direct ownership by 87% to 9,373 unitsForm 4Grant or awardExercise or conversion of a derivative
- Jun 29, 2023KNSASEC Form 4 filed by Quart Barry DForm 4Exercise or conversion of a derivative
- Jun 6, 2023KNSASEC Form 4 filed by Quart Barry DForm 4Grant or award
- Jan 18, 2023HRTXSEC Form 4 filed by Quart Barry DForm 4Grant or award
- Jan 13, 2023HRTXSEC Form 4: Quart Barry D acquired $5,416 worth of shares (1,655 units at $3.27), converted options into 19,767 shares and covered exercise/tax liability with 5,219 shares, increasing direct ownership by 10% to 177,989 units to cover taxesForm 4Shares withheld for taxes or exercise priceOther acquisition or dispositionExercise or conversion of a derivative
- Nov 29, 2022-$355KKNSASEC Form 4: Quart Barry D exercised 21,959 units of Class A Common Share at a strike of $1.59 and sold $354,638 worth of Class A Common Share (21,959 units at $16.15)Form 4Exercise or conversion of a derivativeOpen-market sale
- Oct 13, 2022HRTXSEC Form 4: Quart Barry D converted options into 19,768 shares and covered exercise/tax liability with 5,219 shares, increasing direct ownership by 10% to 161,786 units (withholding tax)Form 4Shares withheld for taxes or exercise priceExercise or conversion of a derivative
- Jul 13, 2022HRTXSEC Form 4: Quart Barry D acquired $5,778 worth of shares (1,504 units at $3.84), converted options into 19,768 shares and covered exercise/tax liability with 5,219 shares, increasing direct ownership by 12% to 147,237 units to cover taxesForm 4Shares withheld for taxes or exercise priceOther acquisition or dispositionExercise or conversion of a derivative
- Jun 29, 2022KNSASEC Form 4 filed by Quart Barry DForm 4Grant or award
- Apr 13, 2022HRTXSEC Form 4: Quart Barry D converted options into 19,768 shares and covered exercise/tax liability with 5,219 shares, increasing direct ownership by 12% to 131,184 units (for withholding tax)Form 4Shares withheld for taxes or exercise priceExercise or conversion of a derivative
- Jan 13, 2022HRTXSEC Form 4: Quart Barry D converted options into 19,768 shares and covered exercise/tax liability with 5,219 shares, increasing direct ownership by 14% to 116,635 units to satisfy withholding taxForm 4Shares withheld for taxes or exercise priceExercise or conversion of a derivative
- Oct 13, 2021HRTXSEC Form 4: Quart Barry D converted options into 3,646 shares and covered exercise/tax liability with 963 shares, increasing direct ownership by 3% to 102,086 units (tax withholding)Form 4Grant or awardShares withheld for taxes or exercise priceExercise or conversion of a derivative
- Jun 29, 2021KNSASEC Form 4 filed by Quart Barry DForm 4Grant or award
- Apr 13, 2021HRTXSEC Form 4: Quart Barry D exercised 3,646 units of Common Stock at a strike of $0.00, disposed of $16,044 worth of Common Stock (963 units at $16.66), gifted 600 units of Common Stock and received a gift of 600 units of Common Stock, increasing direct ownership by 4% to 95,192 unitsForm 4Shares withheld for taxes or exercise priceGiftOther acquisition or dispositionExercise or conversion of a derivative
Also sits on boards with
Officers and directors who share two or more companies with Barry D Quart.
Compare Barry D Quart with
- Barry D Quart vs David Leslie Szekeres2 shared
- Barry D Quart vs Lisa Peraza2 shared
- Barry D Quart vs Sanj K Patel1 shared
- Barry D Quart vs Mark Ragosa1 shared
- Barry D Quart vs John F. Paolini1 shared
- Barry D Quart vs Ross Moat1 shared
Other insiders at the same companies
- Mark Earl HensleyHRTX
- Sanj K PatelKNSA
- Mark RagosaKNSA
- John F. PaoliniKNSA
- Ross MoatKNSA
- Michael R MegnaKNSA
- Craig A CollardHRTX
- Ira DuarteHRTX
- William P ForbesHRTX
- Kleanthis Gabriel XanthopoulosCNTB
- Jean I LiuCNTB
- Richard S LevyKNSA
- G Bradley ColeKNSA
- Dhiraj H MalkaniKNSA
- Kimberly J PopovitsKNSA
- Tracey L McCainKNSA
Questions about Barry D Quart
- What is Barry D Quart's role at Connect Biopharma Holdings Ltd?
- Barry D Quart reports to the SEC as chief Executive Officer and director at Connect Biopharma Holdings Ltd (CNTB), according to the latest filing on March 16, 2026. Barry D Quart has also filed as director at Kiniksa Pharmaceuticals International, plc (KNSA) and officer and director at Heron Therapeutics, Inc. /de/ (HRTX).
- How many shares does Barry D Quart own?
- After the latest filing that states it, Barry D Quart directly owned 12,745 shares of Kiniksa Pharmaceuticals International, plc (KNSA), 95,147 shares of Connect Biopharma Holdings Ltd (CNTB) and 177,989 shares of Heron Therapeutics, Inc. /de/ (HRTX). Shares held through trusts, funds or family members are reported separately and are not counted here.
- Has Barry D Quart bought or sold stock recently?
- The most recent open-market sale was on April 28, 2026: sold 13,099 shares of Kiniksa Pharmaceuticals International, plc (KNSA) for $656K at an average of $50.10.
- How do I get alerts when Barry D Quart files?
- Follow Barry D Quart on Quantisnow and you get an email, and a phone notification on Plus, within minutes of each new Form 4 or Form 5, and of each Form 144 notice of a planned sale. Barry D Quart filed 1 time in the last 90 days.
From SEC Forms 3, 4, 5 and 144 filed by Barry D Quart (SEC CIK 0001384243). Totals count each trade once, skipping amendments whose original is on file, from Apr 15, 2021 on. View on SEC EDGAR