Elena H. Ridloff's Insider Trades & SAST Disclosures

Elena H. Ridloff's most recent trade in Sionna Therapeutics Inc. was a trade of 34,500 Common Stock done at an average price of $21.1 . Disclosure was reported to the exchange on Aug. 19, 2025.

Stock Client Name Client Category Action Reported to Exchange Quantity Post Transaction Holding Traded % Avg. Price Value Security Type
Sionna Therapeutics Inc.
Elena H. Ridloff CFO & Head of Corp. Dev. Sale of securities on an exchange or to another person at price $ 21.08 per share. 19 Aug 2025 34,500 89,032 - 21.1 727,260 Common Stock
Sionna Therapeutics Inc.
Elena H. Ridloff CFO & Head of Corp. Dev. Sale of securities on an exchange or to another person at price $ 22.69 per share. 19 Aug 2025 17,500 71,532 - 22.7 397,075 Common Stock
Kymera Therapeutics Inc
Elena H. Ridloff Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 25 Jun 2025 16,000 16,000 - - Stock Option (Right to Buy)
Kronos Bio Inc
Elena H. Ridloff Director Sale or transfer of securities back to the company at price $ 0.00 per share. 20 Jun 2025 34,000 0 - - Stock Option (Right to Buy)
Kronos Bio Inc
Elena H. Ridloff Director Sale or transfer of securities back to the company at price $ 0.00 per share. 20 Jun 2025 26,871 0 - - Stock Option (Right to Buy)
Kronos Bio Inc
Elena H. Ridloff Director Sale or transfer of securities back to the company at price $ 0.00 per share. 20 Jun 2025 25,879 0 - - Stock Option (Right to Buy)
Kronos Bio Inc
Elena H. Ridloff Director 20 Jun 2025 25,296 0 - 0.6 14,419 Common Stock
Kronos Bio Inc
Elena H. Ridloff Director Sale or transfer of securities back to the company at price $ 0.00 per share. 20 Jun 2025 17,000 0 - - Stock Option (Right to Buy)
Kronos Bio Inc
Elena H. Ridloff Director Sale or transfer of securities back to the company at price $ 0.00 per share. 20 Jun 2025 17,000 0 - - Stock Option (Right to Buy)
Kronos Bio Inc
Elena H. Ridloff Director Sale or transfer of securities back to the company at price $ 0.00 per share. 20 Jun 2025 15,450 0 - - Stock Option (Right to Buy)
Kymera Therapeutics Inc
Elena H. Ridloff Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 11 Jun 2025 4,500 4,500 - - Stock Option (Right to Buy)
Kymera Therapeutics Inc
Elena H. Ridloff Director Sale of securities on an exchange or to another person at price $ 50.00 per share. 11 Jun 2025 4,500 0 - 50 225,000 Common Stock
Kymera Therapeutics Inc
Elena H. Ridloff Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 20.29 per share. 11 Jun 2025 4,500 4,500 - 20.3 91,305 Common Stock
Kymera Therapeutics Inc
Elena H. Ridloff Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 03 Jun 2025 12,000 0 - - Stock Option (Right to Buy)
Kymera Therapeutics Inc
Elena H. Ridloff Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 27.67 per share. 03 Jun 2025 12,000 12,000 - 27.7 332,040 Common Stock
Kymera Therapeutics Inc
Elena H. Ridloff Director Sale of securities on an exchange or to another person at price $ 45.50 per share. 03 Jun 2025 7,200 4,800 - 45.5 327,600 Common Stock
Kymera Therapeutics Inc
Elena H. Ridloff Director Sale of securities on an exchange or to another person at price $ 47.00 per share. 03 Jun 2025 4,800 0 - 47 225,600 Common Stock
Sionna Therapeutics Inc.
Elena H. Ridloff CFO & Head of Corp. Dev. Grant, award, or other acquisition of securities at price $ 0.00 per share. 06 Feb 2025 157,820 157,820 - - Stock Option (Right to Buy)
Kronos Bio Inc
Elena H. Ridloff Director 25 Jun 2024 17,000 17,000 - - Stock Option (Right to Buy)
Kronos Bio Inc
Elena H. Ridloff Director 25 Jun 2024 11,333 25,296 - 0 Common Stock
Kymera Therapeutics Inc
Elena H. Ridloff Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 18 Jun 2024 16,000 16,000 - - Stock Option (Right to Buy)
Kronos Bio Inc
Elena H. Ridloff Director 22 Jun 2023 17,000 17,000 - - Stock Option (Right to Buy)
Kronos Bio Inc
Elena H. Ridloff Director 22 Jun 2023 11,333 13,963 - 0 Common Stock
Kymera Therapeutics Inc
Elena H. Ridloff Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Jun 2023 12,000 12,000 - - Stock Option (Right to Buy)
Kymera Therapeutics Inc
Elena H. Ridloff Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 29 Jun 2022 9,000 9,000 - - Stock Option (Right to Buy)
Kronos Bio Inc
Elena H. Ridloff Director 22 Jun 2022 34,000 34,000 - - Stock Option (Right to Buy)
Kymera Therapeutics Inc
Elena H. Ridloff Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Jun 2022 12,000 12,000 - - Stock Option (Right to Buy)
Kymera Therapeutics Inc
Elena H. Ridloff Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 16 Jun 2021 20,063 20,063 - - Stock Option (Right to Buy)
Acadia Pharmaceuticals Inc
Elena H. Ridloff EVP and CFO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 29 Apr 2021 3,245 11,585 (0%) 0% - Common Stock
Acadia Pharmaceuticals Inc
Elena H. Ridloff EVP and CFO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 29 Apr 2021 3,245 6,491 - - Restricted Stock Units
Acadia Pharmaceuticals Inc
Elena H. Ridloff EVP and CFO Sale of securities on an exchange or to another person at price $ 20.33 per share. 29 Apr 2021 1,032 10,553 (0%) 0% 20.3 20,981 Common Stock
Kymera Therapeutics Inc
Elena H. Ridloff Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Mar 2021 40,127 40,127 - - Stock Option (Right to Buy)
Acadia Pharmaceuticals Inc
Elena H. Ridloff EVP and CFO Grant, award, or other acquisition of securities at price $ 0.00 per share. 23 Feb 2021 36,231 36,231 - - Stock Options (Right to Buy)
Acadia Pharmaceuticals Inc
Elena H. Ridloff EVP and CFO Grant, award, or other acquisition of securities at price $ 0.00 per share. 23 Feb 2021 9,839 9,839 - - Restricted Stock Units
Acadia Pharmaceuticals Inc
Elena H. Ridloff EVP and CFO Grant, award, or other acquisition of securities at price $ 0.00 per share. 04 Feb 2021 6,490 10,391 (0%) 0% 0 Common Stock
Acadia Pharmaceuticals Inc
Elena H. Ridloff EVP and CFO Sale of securities on an exchange or to another person at price $ 50.61 per share. 04 Feb 2021 2,051 8,340 (0%) 0% 50.6 103,801 Common Stock
Acadia Pharmaceuticals Inc
Elena H. Ridloff EVP and CFO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 06 Jan 2021 2,722 4,917 (0%) 0% - Common Stock
Acadia Pharmaceuticals Inc
Elena H. Ridloff EVP and CFO Sale of securities on an exchange or to another person at price $ 53.34 per share. 06 Jan 2021 1,016 3,901 (0%) 0% 53.3 54,193 Common Stock
Acadia Pharmaceuticals Inc
Elena H. Ridloff EVP and CFO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 06 Jan 2021 1,016 9,873 - - Restricted Stock Units
*All Values are in $ Million
Client Category: Promoter/ KMP/ Director / Immediate Relatives / Employee / etc  
Security Type: Share/ Warrants / Convertible Debentures
Data as reported to USA Exchanges
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