SEC Insider Transactions from Third Rock Ventures V, L.P..

Last updated: 2026-03-14 11:00 UTC | Total transactions: 11

Third Rock Ventures V, L.P. has filed 11 insider transactions across 2 companies since June 2024.

Most recent transaction: a transaction of 4790773 shares of Septerna, Inc. ($SEPN) on October 28, 2024.

Activity breakdown: 2 open-market purchases and 0 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Oct. 28, 2024 Septerna, Inc. $SEPN Third Rock Ventures V, L.P. Not found C Common Stock 4790773 $0.00 8,997,547.0000 2,443,678 113.88% 100.00%
Oct. 28, 2024 Septerna, Inc. $SEPN Third Rock Ventures V, L.P. Not found C Common Stock 2872956 $0.00 9,088,547.0000 2,443,678 46.22% 100.00%
Oct. 28, 2024 Septerna, Inc. $SEPN Third Rock Ventures V, L.P. Not found P Common Stock 370500 $18.00 9,368,047.0000 2,443,678 4.12% 15.16%
Oct. 28, 2024 Septerna, Inc. $SEPN Third Rock Ventures V, L.P. Not found P Common Stock 279500 $18.00 9,368,047.0000 2,443,678 3.08% 11.44%
Oct. 28, 2024 Septerna, Inc. $SEPN Third Rock Ventures V, L.P. Not found C Series A Preferred Stock 41250000 $0.00 0.0000 2,443,678 100.00% 100.00%
Oct. 28, 2024 Septerna, Inc. $SEPN Third Rock Ventures V, L.P. Not found C Series B Preferred Stock 24737017 $0.00 0.0000 2,443,678 100.00% 100.00%
June 10, 2024 Rapport Therapeutics, Inc. $RAPP Third Rock Ventures V, L.P. Not found C Common Stock 6551449 $0.00 8,104,451.0000 0 421.86% 0.00%
June 10, 2024 Rapport Therapeutics, Inc. $RAPP Third Rock Ventures V, L.P. Not found C Common Stock 969218 $0.00 8,104,451.0000 0 13.58% 0.00%
June 10, 2024 Rapport Therapeutics, Inc. $RAPP Third Rock Ventures V, L.P. Not found C Series A Preferred Stock 56091177 $0.00 0.0000 0 100.00% 0.00%
June 10, 2024 Rapport Therapeutics, Inc. $RAPP Third Rock Ventures V, L.P. Not found C Series A Preferred Stock 8000000 $0.00 0.0000 0 100.00% 0.00%
June 10, 2024 Rapport Therapeutics, Inc. $RAPP Third Rock Ventures V, L.P. Not found C Series B Preferred Stock 298103 $0.00 0.0000 0 100.00% 0.00%