🕵️ AURA Biosciences, Inc. ($AURA)

SEC insider & ownership activity, last 12 months · CIK 1501796 · every row links its SEC filing

Over the last 12 months insiders sold $40.1M with no open-market buying against it. Matrix Capital Management Company, LP sold $39.0M in discretionary trades (May). No red-flag 8-Ks in the window.

Oct 2025: net -$140K Nov 2025: net -$93K Dec 2025: net +$0 Jan 2026: net -$90K Feb 2026: net -$529K Mar 2026: net +$0 Apr 2026: net -$82K May 2026: net -$39.0M Jun 2026: net -$82K Jul 2026: net +$0 Aug 2026: net +$0 Sep 2026: net +$0
Monthly net open-market insider flow, last 12 months (up = net buying)

Insider flow

0 buyers, $0 (0 lots) · 7 sellers, $40.1M (14 lots)

InsiderBuysBoughtSellsSoldLast
Matrix Capital Management Company, LP0– 1$39.0MMay 7, 2026
De Los Pinos Elisabet0– 3$381KFeb 17, 2026
Hopkins Janet Jill0– 2$196KFeb 17, 2026
Plavsic Mark0– 2$158KFeb 17, 2026
Kilroy Conor0– 2$143KApr 16, 2026
Gibney Anthony0– 1$82KJun 16, 2026
Elazzouzi Amy0– 3$57KFeb 17, 2026

5%+ holders

HolderStakeClassScheduleEvent
David E. Goel 11.2% 13DMay 16, 2025 filing ↗
Chen Yu 9.9% 13GMay 12, 2026 filing ↗
Adage Capital Management, L.P. 8.4% 13GAug 12, 2026 filing ↗
Robert Atchinson 8.4% 13GAug 12, 2026 filing ↗
Phillip Gross 8.4% 13GAug 12, 2026 filing ↗
Suvretta Capital Management, LLC 7.6% 13GAug 13, 2025 filing ↗
Aaron Cowen 7.6% 13GAug 13, 2025 filing ↗
Averill Master Fund, Ltd. 6.6% 13GAug 13, 2025 filing ↗
Suvretta Capital Management, LLC 6.1% 13GApr 11, 2025 filing ↗
Frazier Life Sciences Public Fund, L.P. 5.6% 13GAug 14, 2026 filing ↗
Fhmlsp, L.P. 5.6% 13GAug 14, 2026 filing ↗
Fhmlsp, L.L.C. 5.6% 13GAug 14, 2026 filing ↗
TCG Crossover GP II, LLC 5.0% 13GMay 12, 2026 filing ↗
TCG Crossover Fund II, L.P. 5.0% 13GMay 12, 2026 filing ↗
TCG Crossover GP III, LLC 5.0% 13GMay 12, 2026 filing ↗
TCG Crossover Fund III, L.P. 5.0% 13GMay 12, 2026 filing ↗

Planned insider sales (Form 144)

SellerPlannedApprox. sale date
Gibney Anthony$82KJun 16, 2026 filing ↗
Kilroy Conor$82KApr 16, 2026 filing ↗
Kilroy Conor$61KFeb 17, 2026 filing ↗
Plavsic Mark$80KFeb 17, 2026 filing ↗
Hopkins Janet Jill$103KFeb 17, 2026 filing ↗
Elazzouzi Amy$43KFeb 17, 2026 filing ↗
De Los Pinos Elisabet$241KFeb 17, 2026 filing ↗
Elazzouzi Amy$8KJan 20, 2026 filing ↗
De Los Pinos Elisabet$82KJan 20, 2026 filing ↗
Hopkins Janet Jill$93KNov 17, 2025 filing ↗
Elazzouzi Amy$6KOct 29, 2025 filing ↗
De Los Pinos Elisabet$57KOct 29, 2025 filing ↗
Plavsic Mark$77KOct 16, 2025 filing ↗

Material events (8-K)

ItemEvent date
Earnings (2.02)Aug 11, 2026 filing ↗
Exit or disposal costs (2.05)Aug 11, 2026 filing ↗
Officer/director changes (5.02)Aug 11, 2026 filing ↗
Other events (8.01)Aug 11, 2026 filing ↗
Financial Statements and Exhibits (9.01)Aug 11, 2026 filing ↗
Shareholder vote (5.07)Aug 5, 2026 filing ↗
Officer/director changes (5.02)Jul 3, 2026 filing ↗
Financial Statements and Exhibits (9.01)Jul 3, 2026 filing ↗
Shareholder vote (5.07)Jun 11, 2026 filing ↗
Earnings (2.02)May 11, 2026 filing ↗
Other events (8.01)May 11, 2026 filing ↗
Financial Statements and Exhibits (9.01)May 11, 2026 filing ↗
Material agreement (1.01)May 4, 2026 filing ↗
Financial Statements and Exhibits (9.01)May 4, 2026 filing ↗
Material agreement (1.01)Apr 30, 2026 filing ↗
Earnings (2.02)Apr 30, 2026 filing ↗
Other events (8.01)Apr 30, 2026 filing ↗
Officer/director changes (5.02)Apr 29, 2026 filing ↗
Reg FD disclosure (7.01)Apr 29, 2026 filing ↗
Other events (8.01)Apr 29, 2026 filing ↗
Financial Statements and Exhibits (9.01)Apr 29, 2026 filing ↗
Earnings (2.02)Mar 30, 2026 filing ↗
Other events (8.01)Mar 30, 2026 filing ↗
Financial Statements and Exhibits (9.01)Mar 30, 2026 filing ↗
Earnings (2.02)Nov 13, 2025 filing ↗
Other events (8.01)Nov 13, 2025 filing ↗
Financial Statements and Exhibits (9.01)Nov 13, 2025 filing ↗