Aerts Austin, CFO of SERA Prognostics, Inc. ($SERA), sold shares on the open market 12 times over the past year, totaling about $110,000. His most recent sale occurred on March 11, 2026. These sales rank 9,430th among 11,678 insiders in our database, where the average is $8.6 million across 6.4 transactions per insider. Austin made no open market purchases in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 12, 2026 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | A | Stock Option (right to buy) | 68550 | $0.00 | 68,550.0000 | 49,525,108 | 9999.99% | 0.14% |
| March 12, 2026 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | A | Class A Common Stock | 44215 | $0.00 | 308,667.0000 | 49,525,108 | 16.72% | 0.09% |
| March 11, 2026 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 1019 | $2.04 | 264,452.0000 | 49,525,108 | 0.38% | 0.00% |
| March 10, 2026 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 6069 | $1.90 | 265,471.0000 | 49,525,108 | 2.24% | 0.01% |
| March 9, 2026 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 674 | $1.96 | 271,540.0000 | 49,525,108 | 0.25% | 0.00% |
| Dec. 10, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 873 | $3.31 | 272,214.0000 | 49,525,108 | 0.32% | 0.00% |
| Dec. 9, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 5232 | $3.04 | 273,087.0000 | 49,525,108 | 1.88% | 0.01% |
| Nov. 10, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 6351 | $2.62 | 278,319.0000 | 49,525,108 | 2.23% | 0.01% |
| Sept. 11, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 915 | $3.13 | 284,670.0000 | 33,156,936 | 0.32% | 0.00% |
| Sept. 9, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 5263 | $3.15 | 285,585.0000 | 33,156,936 | 1.81% | 0.02% |
| Aug. 8, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 5800 | $2.54 | 290,848.0000 | 33,156,936 | 1.96% | 0.02% |
| June 10, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 945 | $1.48 | 296,648.0000 | 33,156,936 | 0.32% | 0.00% |
| June 9, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 5735 | $1.43 | 297,593.0000 | 33,156,936 | 1.89% | 0.02% |
| May 8, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 6374 | $2.44 | 303,328.0000 | 33,156,936 | 2.06% | 0.02% |
| March 7, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 4818 | $4.12 | 309,702.0000 | 33,156,936 | 1.53% | 0.01% |
| March 5, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | A | Stock Option (right to buy) | 53810 | $0.00 | 53,810.0000 | 33,156,936 | 9999.99% | 0.16% |
| March 5, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | A | Class A Common Stock | 37650 | $0.00 | 315,060.0000 | 33,156,936 | 13.57% | 0.11% |
| March 6, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 540 | $4.16 | 314,520.0000 | 33,156,936 | 0.17% | 0.00% |
| Feb. 12, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 5915 | $4.58 | 277,410.0000 | 33,156,936 | 2.09% | 0.02% |
| Jan. 10, 2025 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 2431 | $8.06 | 283,325.0000 | 33,156,936 | 0.85% | 0.01% |
| Dec. 10, 2024 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 5730 | $7.41 | 285,756.0000 | 33,522,726 | 1.97% | 0.02% |
| Nov. 11, 2024 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 7179 | $7.32 | 291,486.0000 | 33,522,726 | 2.40% | 0.02% |
| Sept. 10, 2024 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 5056 | $7.57 | 298,665.0000 | 31,200,652 | 1.66% | 0.02% |
| Aug. 7, 2024 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 6760 | $7.42 | 303,721.0000 | 31,200,652 | 2.18% | 0.02% |
| June 10, 2024 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 5415 | $8.11 | 310,481.0000 | 31,200,652 | 1.71% | 0.02% |
| May 8, 2024 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 6592 | $9.59 | 315,896.0000 | 31,200,652 | 2.04% | 0.02% |
| March 26, 2024 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 8092 | $9.37 | 322,488.0000 | 31,200,652 | 2.45% | 0.03% |
| March 6, 2024 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 444 | $9.02 | 330,580.0000 | 31,200,652 | 0.13% | 0.00% |
| Feb. 6, 2024 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | S | Class A Common Stock | 9786 | $8.03 | 331,024.0000 | 31,200,652 | 2.87% | 0.03% |
| Nov. 6, 2023 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | A | Class A Common Stock | 210000 | $0.00 | 215,810.0000 | 0 | 3614.46% | 0.00% |
| Nov. 6, 2023 | SERA PROGNOSTICS, INC. | $SERA | Aerts Austin | Chief Financial Officer | A | Class A Common Stock | 125000 | $0.00 | 340,810.0000 | 0 | 57.92% | 0.00% |