Tachibana Aaron, CFO and COO of Personalis, Inc. ($PSNL), sold about $1.14 million worth of company shares in four open market transactions over the last 365 days. His most recent sale occurred on January 22, 2026. These sales rank 4,619th among roughly 11,700 individual insiders in our database by total value sold, compared to an average of $8.6 million per insider across about 6.4 transactions. Aaron made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 15, 2026 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | A | Common Stock | 34375 | $0.00 | 198,833.0000 | 88,804,348 | 20.90% | 0.04% |
| March 15, 2026 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | A | Stock Option (right to buy) | 206250 | $0.00 | 206,250.0000 | 88,804,348 | 9999.99% | 0.23% |
| Feb. 23, 2026 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | A | Stock Option (right to buy) | 15000 | $0.00 | 15,000.0000 | 88,804,348 | 9999.99% | 0.02% |
| Jan. 22, 2026 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | S | Common Stock | 1201 | $11.50 | 164,458.0000 | 88,804,348 | 0.72% | 0.00% |
| Jan. 22, 2026 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | M | Stock Option (right to buy) | 1201 | $0.00 | 107,631.0000 | 88,804,348 | 1.10% | 0.00% |
| Jan. 22, 2026 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | M | Common Stock | 1201 | $9.16 | 165,659.0000 | 88,804,348 | 0.73% | 0.00% |
| Nov. 25, 2025 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | M | Common Stock | 103668 | $9.16 | 268,126.0000 | 88,804,348 | 63.04% | 0.12% |
| Nov. 25, 2025 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | S | Common Stock | 103668 | $10.78 | 164,458.0000 | 88,804,348 | 38.66% | 0.12% |
| Nov. 25, 2025 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | M | Stock Option (right to buy) | 103668 | $0.00 | 108,832.0000 | 88,804,348 | 48.78% | 0.12% |
| July 28, 2025 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | S | Common Stock | 641 | $6.57 | 164,458.0000 | 88,263,269 | 0.39% | 0.00% |
| May 16, 2025 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | S | Common Stock | 1291 | $4.95 | 165,099.0000 | 88,263,269 | 0.78% | 0.00% |
| March 15, 2025 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | A | Stock Option (right to buy) | 250000 | $0.00 | 250,000.0000 | 88,263,269 | 9999.99% | 0.28% |
| Jan. 28, 2025 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | S | Common Stock | 708 | $5.79 | 166,390.0000 | 0 | 0.42% | 0.00% |
| Dec. 16, 2024 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | S | Common Stock | 6865 | $3.82 | 167,098.0000 | 0 | 3.95% | 0.00% |
| Nov. 18, 2024 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | S | Common Stock | 1307 | $3.79 | 173,963.0000 | 0 | 0.75% | 0.00% |
| July 30, 2024 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | S | Common Stock | 742 | $2.97 | 175,270.0000 | 0 | 0.42% | 0.00% |
| June 17, 2024 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | S | Common Stock | 7176 | $1.29 | 176,012.0000 | 0 | 3.92% | 0.00% |
| May 17, 2024 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | S | Common Stock | 1333 | $1.38 | 183,188.0000 | 0 | 0.72% | 0.00% |
| March 15, 2024 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | A | Stock Option (right to buy) | 175000 | $0.00 | 175,000.0000 | 0 | 9999.99% | 0.00% |
| Jan. 29, 2024 | Personalis, Inc. | $PSNL | Tachibana Aaron | CFO AND COO | S | Common Stock | 716 | $1.37 | 184,521.0000 | 0 | 0.39% | 0.00% |