$SRZN 4 SEC Filings

Filed On	Filing
22 Oct 2026	Form 4: Column Group Iii GP, Lp, 10% owner and 6 others Received 1,551,724 shares by exercise ($18M) · Acquired 775,862 Series E Common Warrants (In/At-money Exercise)
22 Oct 2026	Form 4: Kutzkey Tim, Director Received 1,551,724 shares by exercise ($18M) · Acquired 775,862 Series E Common Warrants (In/At-money Exercise)
24 Jul 2026	Form 4: Tcg Crossover Gp II, Llc, 10% owner and 4 others Sold 325,000 shares ($6.91M)
16 Jun 2026	Form 4: Williams Charles O, Chief Operating Officer Received 1,666 shares as a grant or award ($13.5K)
16 Jun 2026	Form 4: Parker Craig C, Director Received 1,622 shares as a grant or award ($13.2K)
16 Jun 2026	Form 4: Maleki Andrew Pedrum, Chief Financial Officer Received 607 shares as a grant or award ($11.5K)
16 Jun 2026	Form 4: Li Yang, Exec. Vice President, Research Received 1,666 shares as a grant or award ($13.5K)
19 May 2026	Form 4: Kutzkey Tim, Director Granted 5,550 Option (right to buy)
14 May 2026	Form 4: Rothenberg Mace, Director Granted 5,550 Director Stock Option (right to buy)
14 May 2026	Form 4: Woodhouse David J, Director Granted 5,550 Director Stock Option (right to buy)
14 May 2026	Form 4: Haak-Frendscho Mary, Director Granted 5,550 Director Stock Option (right to buy)
14 May 2026	Form 4: Chai Christopher Y, Director Granted 5,550 Director Stock Option (right to buy)
14 May 2026	Form 4: Berkenblit Anna, Director Granted 5,550 Director Stock Option (right to buy)
14 May 2026	Form 4: Bjerkholt Eric, Director Granted 5,550 Director Stock Option (right to buy)
05 May 2026	Form 4: Li Yang, Exec. Vice President, Research Received 4,375 shares by exercise or conversion · Sold 1,584 shares ($52.8K)
05 May 2026	Form 4: Williams Charles O, Chief Operating Officer Received 5,625 shares by exercise or conversion · Sold 2,036 shares ($67.9K)
05 May 2026	Form 4: Parker Craig C, Director Received 12,500 shares by exercise or conversion · Sold 4,524 shares ($151K)
01 Apr 2026	Form 4: Li Yang, Exec. Vice President, Research Gave 1,666 shares as a gift
25 Mar 2026	Form 4: Tcg Crossover Gp II, Llc, 10% owner and 3 others Bought 15,223 shares ($379K) · Bought 106,658 shares ($2.63M)
16 Mar 2026	Form 4: Tcg Crossover Gp II, Llc, 10% owner and 3 others Bought 12,374 shares ($309K) · Bought 35,433 shares ($881K) · Bought 1,190 shares ($29.7K)

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