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Chen Bihua insider trades
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Chen Bihua insider trades

Chen Bihua has filed 26 Form 4s with the SEC that we hold, for BridgeBio Oncology Therapeutics, Inc. (BBOT) (Director, 10% owner), MoonLake Immunotherapeutics (MLTX) (10% owner), Corbus Pharmaceuticals Holdings, Inc. (CRBP) (10% owner) and Erasca, Inc. (ERAS) (Director), among 14 companies in all. Across all of them we count 71 purchases worth $268.7M and 2 sales worth $4.1M reported on Form 4. In the last 12 months: 2 purchases ($13.0M) and 1 sale ($344.1K). The largest single trade was a purchase of 800,000 shares of MoonLake Immunotherapeutics worth $40.0M, dated 2023-06-30. The first filing on our record is dated 2021-07-01 and the latest 2026-08-10.

BridgeBio Oncology Therapeutics, Inc. (BBOT)

Director, 10% owner · 5 filings · 3 purchases and sales
Trade dateCodeSharesValue as filedFiled
2024-02-13P, purchase reported on Form 469,360$693.6K2024-02-13
2024-02-13P, purchase reported on Form 41,427,040$14.3M2024-02-13
2024-02-13P, purchase reported on Form 4903,600$9.0M2024-02-13

MoonLake Immunotherapeutics (MLTX)

10% owner · 4 filings · 33 purchases and sales
Trade dateCodeSharesValue as filedFiled
2022-04-05P, purchase reported on Form 42,850,000$28.5M2022-04-07
2023-03-20P, purchase reported on Form 478,008$1.6M2023-03-22
2023-03-20P, purchase reported on Form 463,700$1.3M2023-03-22
2023-03-20P, purchase reported on Form 4446,881$8.7M2023-03-22
2023-03-21P, purchase reported on Form 4238,511$5.2M2023-03-22
2023-06-26P, purchase reported on Form 418,949$1.0M2023-06-28
2023-06-26P, purchase reported on Form 41,453$81.1K2023-06-28
2023-06-26P, purchase reported on Form 41,894$107.7K2023-06-28
2023-06-26P, purchase reported on Form 4295$17.0K2023-06-28
2023-06-26P, purchase reported on Form 41,302$76.8K2023-06-28
2023-06-26P, purchase reported on Form 4417$25.1K2023-06-28
2023-06-26P, purchase reported on Form 4136$8.5K2023-06-28
2023-06-26P, purchase reported on Form 4139$8.9K2023-06-28
2023-06-26P, purchase reported on Form 495$6.1K2023-06-28
2023-06-26P, purchase reported on Form 416$1.0K2023-06-28
2023-06-26P, purchase reported on Form 415$1.1K2023-06-28
2023-06-26P, purchase reported on Form 485$6.2K2023-06-28
2023-06-26P, purchase reported on Form 41,481$54.7K2023-06-28
2023-06-26P, purchase reported on Form 43,755$143.4K2023-06-28
2023-06-26P, purchase reported on Form 410,593$414.9K2023-06-28
2023-06-26P, purchase reported on Form 438,623$1.5M2023-06-28
2023-06-26P, purchase reported on Form 450,642$2.1M2023-06-28
2023-06-26P, purchase reported on Form 461,042$2.6M2023-06-28
2023-06-26P, purchase reported on Form 466,087$2.9M2023-06-28
2023-06-26P, purchase reported on Form 431,558$1.4M2023-06-28
2023-06-26P, purchase reported on Form 410,946$491.8K2023-06-28
2023-06-26P, purchase reported on Form 437,783$1.8M2023-06-28
2023-06-26P, purchase reported on Form 459,787$3.0M2023-06-28
2023-06-26P, purchase reported on Form 417,662$896.7K2023-06-28
2023-06-26P, purchase reported on Form 48,697$452.3K2023-06-28
2023-06-26P, purchase reported on Form 44,725$249.5K2023-06-28
2023-06-26P, purchase reported on Form 421,823$1.2M2023-06-28
2023-06-30P, purchase reported on Form 4800,000$40.0M2023-07-05

Corbus Pharmaceuticals Holdings, Inc. (CRBP)

10% owner · 3 filings · 25 purchases and sales
Trade dateCodeSharesValue as filedFiled
2024-01-26P, purchase reported on Form 431,028$894.2K2024-01-30
2024-01-26P, purchase reported on Form 436,747$1.0M2024-01-30
2024-01-26P, purchase reported on Form 415,243$406.4K2024-01-30
2024-01-26P, purchase reported on Form 414,388$370.2K2024-01-30
2024-01-26P, purchase reported on Form 429,244$860.4K2024-01-30
2024-01-26P, purchase reported on Form 43,200$123.2K2024-01-30
2024-01-26P, purchase reported on Form 443,754$1.6M2024-01-30
2024-01-26P, purchase reported on Form 42,654$82.3K2024-01-30
2024-01-26P, purchase reported on Form 44,125$131.4K2024-01-30
2024-01-26P, purchase reported on Form 43,866$125.5K2024-01-30
2024-01-26P, purchase reported on Form 418,055$608.6K2024-01-30
2024-01-26P, purchase reported on Form 431,549$1.1M2024-01-30
2024-01-26P, purchase reported on Form 432,295$1.2M2024-01-30
2024-01-26P, purchase reported on Form 416,484$602.2K2024-01-30
2024-03-07P, purchase reported on Form 490,325$3.6M2024-03-11
2024-03-07P, purchase reported on Form 410,736$420.1K2024-03-11
2024-03-07P, purchase reported on Form 446,799$1.8M2024-03-11
2024-03-07P, purchase reported on Form 4102,140$4.2M2024-03-11
2024-03-08P, purchase reported on Form 424,983$1.1M2024-03-11
2024-03-08P, purchase reported on Form 461,668$2.8M2024-03-11
2024-03-08P, purchase reported on Form 418,548$802.4K2024-03-11
2024-03-08P, purchase reported on Form 48,862$407.3K2024-03-11
2024-03-08P, purchase reported on Form 4156,597$7.1M2024-03-11
2024-03-08P, purchase reported on Form 429,342$1.2M2024-03-11
2025-12-11S, sale reported on Form 430,029$344.1K2025-12-15

Erasca, Inc. (ERAS)

Director · 3 filings · 2 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-07-26S, sale reported on Form 4200,000$3.8M2021-08-10
2021-08-10P, purchase reported on Form 4200,000$4.4M2021-08-10

Biomea Fusion, Inc. (BMEA)

Director, 10% owner · 2 filings · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

AMAM

10% owner · 1 filing · 3 purchases and sales
Trade dateCodeSharesValue as filedFiled
2023-04-18P, purchase reported on Form 43,376,646$38.1M2023-04-20
2023-04-19P, purchase reported on Form 4951,909$10.6M2023-04-20
2023-04-20P, purchase reported on Form 4886,634$10.3M2023-04-20

Aardvark Therapeutics, Inc. (AARD)

Reporting owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2025-02-14P, purchase reported on Form 4187,500$3.0M2025-02-19

BioAge Labs, Inc. (BIOA)

Reporting owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2024-09-27P, purchase reported on Form 4450,000$8.1M2024-10-01

BlossomHill Therapeutics, Inc. (BLSM)

Director, 10% owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2026-08-10P, purchase reported on Form 4312,500$5.0M2026-08-10

ELEV (ELEV)

10% owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2021-06-29P, purchase reported on Form 4250,000$4.0M2021-07-01

GRNA

Reporting owner · 1 filing · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Helix Acquisition Corp. III (HLXC)

Chairperson and CEO, Director, 10% owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2026-01-26P, purchase reported on Form 4800,000$8.0M2026-01-28

Tyra Biosciences, Inc. (TYRA)

Reporting owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2021-09-17P, purchase reported on Form 4312,500$5.0M2021-09-21

VTYX

10% owner · 1 filing · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2021-10-25P, purchase reported on Form 4625,000$10.0M2021-10-27
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1599214) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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