SEC Insider Transactions from Aranda Richard.

Last updated: 2026-03-20 21:01 UTC | Total transactions: 47

Aranda Richard has filed 47 insider transactions across 1 company since March 2023.

Most recent transaction: a disposition of 126667 shares of Gossamer Bio, Inc. ($GOSS) on March 19, 2026.

Activity breakdown: 0 open-market purchases and 4 sales.

Set Up your own filters →
Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 126667 $0.00 0.0000 231,456,247 100.00% 0.05%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 562500 $0.00 0.0000 231,456,247 100.00% 0.24%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 572000 $0.00 0.0000 231,456,247 100.00% 0.25%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 487500 $0.00 0.0000 231,456,247 100.00% 0.21%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 162500 $0.00 0.0000 231,456,247 100.00% 0.07%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 157500 $0.00 0.0000 231,456,247 100.00% 0.07%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 157500 $0.00 0.0000 231,456,247 100.00% 0.07%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 20000 $0.00 0.0000 231,456,247 100.00% 0.01%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 40000 $0.00 0.0000 231,456,247 100.00% 0.02%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 22784 $0.00 0.0000 231,456,247 100.00% 0.01%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 9167 $0.00 0.0000 231,456,247 100.00% 0.00%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 30000 $0.00 0.0000 231,456,247 100.00% 0.01%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 562500 $0.00 562,500.0000 231,456,247 9999.99% 0.24%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 572000 $0.00 572,000.0000 231,456,247 9999.99% 0.25%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 487500 $0.00 487,500.0000 231,456,247 9999.99% 0.21%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 162500 $0.00 162,500.0000 231,456,247 9999.99% 0.07%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 157500 $0.00 157,500.0000 231,456,247 9999.99% 0.07%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 157500 $0.00 157,500.0000 231,456,247 9999.99% 0.07%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 126667 $0.00 126,667.0000 231,456,247 9999.99% 0.05%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 20000 $0.00 20,000.0000 231,456,247 9999.99% 0.01%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 40000 $0.00 40,000.0000 231,456,247 9999.99% 0.02%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 22784 $0.00 22,784.0000 231,456,247 9999.99% 0.01%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 9167 $0.00 9,167.0000 231,456,247 9999.99% 0.00%
March 19, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 30000 $0.00 30,000.0000 231,456,247 9999.99% 0.01%
Jan. 2, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 562500 $0.00 562,500.0000 231,456,247 9999.99% 0.24%
Jan. 2, 2026 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Common Stock 93750 $0.00 465,645.0000 231,456,247 25.21% 0.04%
Oct. 1, 2025 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Common Stock 162500 $0.00 371,895.0000 227,221,261 77.60% 0.07%
March 4, 2025 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 572000 $0.00 572,000.0000 0 9999.99% 0.00%
June 24, 2024 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer S Common Stock 1908 $0.66 199,430.0000 0 0.95% 0.00%
March 18, 2024 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer S Common Stock 4018 $1.33 198,799.0000 0 1.98% 0.00%
Jan. 2, 2024 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 487500 $0.00 487,500.0000 0 9999.99% 0.00%
Nov. 20, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 162500 $0.00 162,500.0000 0 9999.99% 0.00%
June 22, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer S Common Stock 1814 $1.29 200,113.0000 0 0.90% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 126667 $0.00 126,667.0000 0 9999.99% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 40000 $0.00 40,000.0000 0 9999.99% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 20000 $0.00 20,000.0000 0 9999.99% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 45000 $0.00 0.0000 0 100.00% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 13750 $0.00 0.0000 0 100.00% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 34175 $0.00 0.0000 0 100.00% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 60000 $0.00 0.0000 0 100.00% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 30000 $0.00 0.0000 0 100.00% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer D Stock Option (Right to Buy) 190000 $0.00 0.0000 0 100.00% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 30000 $0.00 30,000.0000 0 9999.99% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 9167 $0.00 9,167.0000 0 9999.99% 0.00%
May 5, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 22784 $0.00 22,784.0000 0 9999.99% 0.00%
March 20, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer A Stock Option (Right to Buy) 157500 $0.00 157,500.0000 0 9999.99% 0.00%
March 16, 2023 Gossamer Bio, Inc. $GOSS Aranda Richard Chief Medical Officer S Common Stock 7563 $1.10 201,927.0000 0 3.61% 0.00%