ERAS
insider transactionsErasca, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-220.0K
0 buy · 220.0K sell
Net value · 365d
-$2.3M
$0 in · $2.3M out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
3
0 buy · 220.0K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Exercise·M
Chief Legal Officer · 10b5-1
$0
80.0K sh
Own +40%
-
Sell·S
Chief Legal Officer · 10b5-1
$1.3M
80.0K sh · $16.40
Own -76%
-
Exercise·M
Chief Legal Officer · 10b5-1
$136.0K
80.0K sh · $1.70
Own +319%
-
Sell·S
Chief Medical Officer · 10b5-1
$300.8K
20.0K sh · $15.04
Own -100%
-
Exercise·M
Chief Medical Officer · 10b5-1
$34.0K
20.0K sh · $1.70
Own New
-
Grant·A
Jonathan E Lim KEY
Chairman & CEO
$0
2.0M sh
Own New
-
Grant·A
Chief Medical Officer
$0
625.0K sh
Own New
-
Grant·A
Director
$0
96.0K sh
Own New
-
Grant·A
General Counsel & Corp. Sec.
$0
560.0K sh
Own New
-
Grant·A
David M. Chacko KEY
CFO and CBO
$0
640.0K sh
Own New
-
Sell·S
General Counsel & Corp. Sec. · 10b5-1
$670.8K
120.0K sh · $5.59
Own -83%
-
Exercise·M
General Counsel & Corp. Sec. · 10b5-1
$204.0K
120.0K sh · $1.70
Own +479%
-
Grant·A
Director
$0
20.6K sh
Own New
-
Grant·A
Director
$0
19.5K sh
Own New
-
Grant·A
Director
$0
24.3K sh
Own New
-
Grant·A
Director
$0
23.9K sh
Own New
-
Grant·A
Director
$0
37.8K sh
Own New
-
Grant·A
General Counsel & Corp. Sec. · 10b5-1
$4.7K
3.9K sh · $1.19
Own +18%
-
Other·J
David M. Chacko KEY
CFO and CBO
$21.3K
17.8K sh · $1.19
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Apr 1, 2026 | Ebun Garner 10b5-1 | Exercise M | 80.0K | $0 |
| Apr 1, 2026 | Ebun Garner 10b5-1 | Sell S | 80.0K | $1.3M |
| Apr 1, 2026 | Ebun Garner 10b5-1 | Exercise M | 80.0K | $136.0K |
| Mar 4, 2026 | Shannon Morris 10b5-1 | Sell S | 20.0K | $300.8K |
| Mar 4, 2026 | Shannon Morris 10b5-1 | Exercise M | 20.0K | $34.0K |
| Jan 29, 2026 | Jonathan E Lim KEY | Grant A | 2.0M | $0 |
| Jan 29, 2026 | Shannon Morris | Grant A | 625.0K | $0 |
| Jan 29, 2026 | Michael David Varney | Grant A | 96.0K | $0 |
| Jan 29, 2026 | Ebun Garner | Grant A | 560.0K | $0 |
| Jan 29, 2026 | David M. Chacko KEY | Grant A | 640.0K | $0 |
| Jan 7, 2026 | Ebun Garner 10b5-1 | Sell S | 120.0K | $670.8K |
| Jan 7, 2026 | Ebun Garner 10b5-1 | Exercise M | 120.0K | $204.0K |
| Jan 1, 2026 | Jean I Liu | Grant A | 20.6K | $0 |
| Jan 1, 2026 | Pratik S Multani | Grant A | 19.5K | $0 |
| Jan 1, 2026 | Valerie Denise Harding Start | Grant A | 24.3K | $0 |
| Jan 1, 2026 | Alexander W. Casdin | Grant A | 23.9K | $0 |
| Jan 1, 2026 | James Arthur Bristol | Grant A | 37.8K | $0 |
| Dec 15, 2025 | Ebun Garner 10b5-1 | Grant A | 3.9K | $4.7K |
| Dec 15, 2025 | David M. Chacko KEY | Other J | 17.8K | $21.3K |
About ERAS insider trading
This page tracks insider transactions for Erasca, Inc. (ERAS) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.