$SRZN

📈 Chart

68 transactions across 20 dates · last 365 days

30d 90d 180d 365d

6-Month Buy/Sell Trend

Buys Sells
▶ 2026-03-31
1 other
Insider Title Type Shares Price $ Value 10b5-1 Filed
Li Yang Exec. Vice President, Research G 1,666 $0 $0 Apr 1
▶ 2026-03-23
▲ 2 buys · $379K
Insider Title Type Shares Price $ Value 10b5-1 Filed
TCG Crossover GP II, LLC — ▲ Buy 7,612 $25 $190K Mar 25
TCG Crossover GP II, LLC — ▲ Buy 7,611 $25 $190K Mar 25
▶ 2026-03-24
▲ 2 buys · $2.6M
Insider Title Type Shares Price $ Value 10b5-1 Filed
TCG Crossover GP II, LLC — ▲ Buy 53,329 $25 $1.3M Mar 25
TCG Crossover GP II, LLC — ▲ Buy 53,329 $25 $1.3M Mar 25
▶ 2026-01-23
1 other
Insider Title Type Shares Price $ Value 10b5-1 Filed
Williams Charles O Chief Operating Officer A 500 $0 $0 Jan 26
▶ 2026-01-15
▲ 4 buys · $473K
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
COLUMN GROUP III GP, LP — ▲ Buy 5,590 $20 $111K Jan 20
COLUMN GROUP III GP, LP — ▲ Buy 6,303 $20 $125K Jan 20
Kutzkey Tim — ▲ Buy 5,590 $20 $111K Jan 20
Kutzkey Tim — ▲ Buy 6,303 $20 $125K Jan 20
▶ 2026-01-16
▲ 4 buys · $102K
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
COLUMN GROUP III GP, LP — ▲ Buy 1,204 $20 $24K Jan 20
COLUMN GROUP III GP, LP — ▲ Buy 1,358 $20 $27K Jan 20
Kutzkey Tim — ▲ Buy 1,204 $20 $24K Jan 20
Kutzkey Tim — ▲ Buy 1,358 $20 $27K Jan 20
▶ 2026-01-20
▲ 4 buys · $708K
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
COLUMN GROUP III GP, LP — ▲ Buy 8,484 $20 $166K Jan 20
COLUMN GROUP III GP, LP — ▲ Buy 9,568 $20 $188K Jan 20
Kutzkey Tim — ▲ Buy 8,484 $20 $166K Jan 20
Kutzkey Tim — ▲ Buy 9,568 $20 $188K Jan 20
▶ 2026-01-13
▲ 4 buys · $494K
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
COLUMN GROUP III GP, LP — ▲ Buy 5,861 $20 $116K Jan 15
COLUMN GROUP III GP, LP — ▲ Buy 6,609 $20 $131K Jan 15
Kutzkey Tim — ▲ Buy 5,861 $20 $116K Jan 15
Kutzkey Tim — ▲ Buy 6,609 $20 $131K Jan 15
▶ 2026-01-14
▲ 4 buys · $221K
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
COLUMN GROUP III GP, LP — ▲ Buy 2,596 $20 $52K Jan 15
COLUMN GROUP III GP, LP — ▲ Buy 2,927 $20 $59K Jan 15
Kutzkey Tim — ▲ Buy 2,596 $20 $52K Jan 15
Kutzkey Tim — ▲ Buy 2,927 $20 $59K Jan 15
▶ 2026-01-06
▲ 4 buys · $601K
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
COLUMN GROUP III GP, LP — ▲ Buy 7,097 $20 $141K Jan 8
COLUMN GROUP III GP, LP — ▲ Buy 8,003 $20 $159K Jan 8
Kutzkey Tim — ▲ Buy 7,097 $20 $141K Jan 8
Kutzkey Tim — ▲ Buy 8,003 $20 $159K Jan 8
▶ 2026-01-02
4 other
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Li Yang Exec. Vice President, Research M 2,500 — — Jan 6
Li Yang Exec. Vice President, Research M 2,500 $0 $0 Jan 6
Williams Charles O Chief Operating Officer M 3,500 — — Jan 6
Williams Charles O Chief Operating Officer M 3,500 $0 $0 Jan 6
▶ 2026-01-05
▼ 2 sells · $53K
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Li Yang Exec. Vice President, Research ▼ Sell 1,118 $20 $22K Jan 6
Williams Charles O Chief Operating Officer ▼ Sell 1,566 $20 $31K Jan 6
▶ 2025-12-15
3 other
⚡ 3 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Li Yang Exec. Vice President, Research A 1,666 $8 $14K Dec 16
Parker Craig C Chief Executive Officer A 1,553 $8 $13K Dec 16
Williams Charles O Chief Operating Officer A 1,666 $8 $14K Dec 16
▶ 2025-12-04
▲ 4 buys · $183K
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
COLUMN GROUP III GP, LP — ▲ Buy 2,475 $17 $43K Dec 8
COLUMN GROUP III GP, LP — ▲ Buy 2,791 $17 $48K Dec 8
Kutzkey Tim — ▲ Buy 2,475 $17 $43K Dec 8
Kutzkey Tim — ▲ Buy 2,791 $17 $48K Dec 8
▶ 2025-12-05
▲ 4 buys · $1.2M
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
COLUMN GROUP III GP, LP — ▲ Buy 14,503 $20 $283K Dec 8
COLUMN GROUP III GP, LP — ▲ Buy 16,381 $20 $320K Dec 8
Kutzkey Tim — ▲ Buy 14,503 $20 $283K Dec 8
Kutzkey Tim — ▲ Buy 16,381 $20 $320K Dec 8
▶ 2025-11-13
▲ 4 buys · $8.0M
⚡ 2 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Kutzkey Tim — ▲ Buy 148,150 $13 $1.9M Dec 2
Kutzkey Tim — ▲ Buy 167,307 $13 $2.1M Dec 2
COLUMN GROUP III GP, LP — ▲ Buy 148,150 $13 $1.9M Nov 17
COLUMN GROUP III GP, LP — ▲ Buy 167,307 $13 $2.1M Nov 17
▶ 2025-11-12
1 other
Insider Title Type Shares Price $ Value 10b5-1 Filed
Maleki Andrew Pedrum Chief Financial Officer A 50,000 $0 $0 Nov 13
▶ 2025-06-13
3 other
⚡ 3 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Li Yang Exec. Vice President, Research A 400 $8 $3K Jun 16
Parker Craig C Chief Executive Officer A 400 $8 $3K Jun 16
Williams Charles O CFO and COO A 400 $8 $3K Jun 16
▶ 2025-05-14
7 other
⚡ 7 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
BJERKHOLT ERIC — A 1,333 $0 $0 May 15
Berkenblit Anna — A 1,333 $0 $0 May 15
CHAI CHRISTOPHER Y — A 1,333 $0 $0 May 15
Haak-Frendscho Mary — A 1,333 $0 $0 May 15
Lin Shao-Lee — A 1,333 $0 $0 May 15
Rothenberg Mace — A 1,333 $0 $0 May 15
WOODHOUSE DAVID J — A 1,333 $0 $0 May 15
▶ 2025-05-01
6 other
⚡ 3 insiders
Insider Title Type Shares Price $ Value 10b5-1 Filed
Li Yang Exec. Vice President, Research A 26,250 $0 $0 May 5
Li Yang Exec. Vice President, Research A 8,750 $0 $0 May 5
Parker Craig C Chief Executive Officer A 75,000 $0 $0 May 5
Parker Craig C Chief Executive Officer A 25,000 $0 $0 May 5
Williams Charles O CFO and COO A 11,250 $0 $0 May 5
Williams Charles O CFO and COO A 33,750 $0 $0 May 5