ARCH Venture Partners X, LLC has filed 27 insider transactions across 2 companies since September 2023.
Most recent transaction: a purchase of 1915700 shares of Neumora Therapeutics, Inc. ($NMRA) on October 27, 2025.
Activity breakdown: 5 open-market purchases and 0 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct. 27, 2025 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | P | Common Stock | 1915700 | $2.61 | 33,847,838.0000 | 161,978,923 | 6.00% | 1.18% |
| Aug. 1, 2025 | Prime Medicine, Inc. | $PRME | ARCH Venture Partners X, LLC | TenPercentOwner | P | Common Stock | 3030300 | $3.30 | 18,486,894.0000 | 131,160,842 | 19.61% | 2.31% |
| Feb. 15, 2024 | Prime Medicine, Inc. | $PRME | ARCH Venture Partners X, LLC | TenPercentOwner | P | Common Stock | 3200000 | $6.25 | 15,456,594.0000 | 0 | 26.11% | 0.00% |
| Dec. 8, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | J | Common Stock | 703061 | $0.00 | 31,932,138.0000 | 0 | 2.25% | 0.00% |
| Dec. 8, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | J | Common Stock | 1176593 | $0.00 | 31,932,138.0000 | 0 | 3.83% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Common Stock | 2124143 | $0.00 | 28,045,420.0000 | 0 | 8.19% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | P | Common Stock | 1500000 | $17.00 | 29,545,420.0000 | 0 | 5.35% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Series A-1 Preferred Stock | 684167 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Series A-1 Preferred Stock | 1144973 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Series A-2 Preferred Stock | 6895021 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Series A-2 Preferred Stock | 6576400 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Series B Preferred Stock | 2124143 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Common Stock | 684167 | $0.00 | 29,545,420.0000 | 0 | 2.37% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Common Stock | 1144973 | $0.00 | 29,545,420.0000 | 0 | 4.03% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Common Stock | 6895021 | $0.00 | 29,545,420.0000 | 0 | 30.44% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Common Stock | 6576400 | $0.00 | 29,545,420.0000 | 0 | 28.63% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Common Stock | 2124143 | $0.00 | 28,045,420.0000 | 0 | 8.19% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | P | Common Stock | 1500000 | $17.00 | 29,545,420.0000 | 0 | 5.35% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Series A-1 Preferred Stock | 684167 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Series A-1 Preferred Stock | 1144973 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Series A-2 Preferred Stock | 6895021 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Series A-2 Preferred Stock | 6576400 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Series B Preferred Stock | 2124143 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Common Stock | 684167 | $0.00 | 29,545,420.0000 | 0 | 2.37% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Common Stock | 1144973 | $0.00 | 29,545,420.0000 | 0 | 4.03% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Common Stock | 6895021 | $0.00 | 29,545,420.0000 | 0 | 30.44% | 0.00% |
| Sept. 19, 2023 | Neumora Therapeutics, Inc. | $NMRA | ARCH Venture Partners X, LLC | TenPercentOwner | C | Common Stock | 6576400 | $0.00 | 29,545,420.0000 | 0 | 28.63% | 0.00% |