Updated Jul 16, 2026 · Last SEC filing 2026-07-08
Aura Biosciences, Inc. (AURA) has filed 9 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-08. 9 Form 8-K material event filings were reported by AURA in the last 90 days. 1 Form 144 notices of proposed sale were filed for AURA stock. InsiderAlpha tracks every AURA SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Biological Products, (No Diagnostic Substances) (SIC 2836) |
|---|---|
| SEC CIK | 0001501796 |
| Form 4 filings (90d) | 9 |
|---|---|
| Form 8-K filings (90d) | 9 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-07-08 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Bender Jeremy | Insider | A — Grant or award | 30.0K | $0.00 | — | SEC | |
| Kilroy Conor | See Remarks | A — Grant or award | 14.9K | $0.00 | — | SEC | |
| Gibney Anthony S | See Remarks | S — Open-market sale | 12.8K | $6.42 | $82K | SEC | |
| Mattessich Antony C. | Insider | A — Grant or award | 15.0K | $0.00 | — | SEC | |
| Srivastava Sapna | Insider | A — Grant or award | 15.0K | $0.00 | — | SEC | |
| Johnson David Michael | Insider | A — Grant or award | 15.0K | $0.00 | — | SEC | |
| Bitetti Teresa Marie | Insider | A — Grant or award | 15.0K | $0.00 | — | SEC | |
| Holles Natalie C. | See Remarks | A — Grant or award | 553.8K | $0.00 | — | SEC | |
| Holles Natalie C. | See Remarks | A — Grant or award | 600.1K | $0.00 | — | SEC | |
| Matrix Capital Management Company, LP | 10% Owner | S — Open-market sale | 6.92M | $5.64 | $39.04M | SEC | |
| Kilroy Conor | See Remarks | S — Open-market sale | 11.7K | $7.02 | $82K | SEC | |
| Gibney Anthony S | See Remarks | A — Grant or award | 71.2K | $0.00 | — | SEC | |
| Plavsic Mark | Chief Technology Officer | A — Grant or award | 62.3K | $0.00 | — | SEC | |
| Kilroy Conor | See Remarks | A — Grant or award | 62.3K | $0.00 | — | SEC | |
| de los Pinos Elisabet | See Remarks | A — Grant or award | 166.0K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Aura Biosciences, Inc. (AURA). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Holles Natalie C. | 3 | — |
| Bender Jeremy | 2 | — |
| Srivastava Sapna | 2 | — |
| Bitetti Teresa Marie | 2 | — |
| Johnson David Michael | 2 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in AURA insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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