Chang Carmen insider trades

Name: Chang Carmen Form 4 insider trades
Creator: WaveMan
License: https://wave-man.com/terms

Chang Carmen has filed 28 Form 4s with the SEC that we hold, for NEUE (Director, 10% owner), Coursera, Inc. (COUR) (Director), Trevi Therapeutics, Inc. (TRVI) (10% owner) and Korro Bio, Inc. (KRRO) (10% owner), among 11 companies in all. Across all of them we count 8 purchases worth $34.1M and 9 sales worth $1.3M reported on Form 4. In the last 12 months: 2 purchases ($17.3M) and 0 sales ($0). The largest single trade was a purchase of 937,500 shares of SpyGlass Pharma, Inc. worth $15.0M, dated 2026-02-09. The first filing on our record is dated 2021-10-19 and the latest 2026-06-15.

NEUE

Director, 10% owner · 9 filings · 3 purchases and sales

Trade date	Code	Shares	Value as filed	Filed
2025-10-02	S, sale reported on Form 4	280	$1.9K	2025-10-06
2025-10-02	S, sale reported on Form 4	2,455	$16.6K	2025-10-06
2025-10-02	S, sale reported on Form 4	900	$6.1K	2025-10-06

Coursera, Inc. (COUR)

Director · 8 filings · 1 purchase or sale

Trade date	Code	Shares	Value as filed	Filed
2023-03-15	S, sale reported on Form 4	1,226	$14.5K	2023-03-17

Trevi Therapeutics, Inc. (TRVI)

10% owner · 3 filings · 3 purchases and sales

Trade date	Code	Shares	Value as filed	Filed
2021-10-18	P, purchase reported on Form 4	1,851,852	-	2021-10-19
2022-04-11	P, purchase reported on Form 4	948,948	$1.8M	2022-04-13
2022-04-11	P, purchase reported on Form 4	2,631,578	$5.0M	2022-04-13

Korro Bio, Inc. (KRRO)

10% owner · 2 filings · 2 purchases and sales

Trade date	Code	Shares	Value as filed	Filed
2024-04-22	P, purchase reported on Form 4	17,857	$1,000.0K	2024-04-24
2026-03-10	P, purchase reported on Form 4	207,100	$2.3M	2026-03-12

AKUS

10% 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.

GNCA

10% owner · 1 filing · 2 purchases and sales

Trade date	Code	Shares	Value as filed	Filed
2022-05-24	S, sale reported on Form 4	5,931,843	$415.2K	2022-05-26
2022-05-25	S, sale reported on Form 4	4,445,093	$355.6K	2022-05-26

MBX Biosciences, Inc. (MBX)

10% owner · 1 filing · 1 purchase or sale

Trade date	Code	Shares	Value as filed	Filed
2024-09-16	P, purchase reported on Form 4	500,000	$8.0M	2024-09-17

MTCR

10% owner · 1 filing · 3 purchases and sales

Trade date	Code	Shares	Value as filed	Filed
2021-12-10	S, sale reported on Form 4	37,570	$49.6K	2021-12-27
2021-12-22	S, sale reported on Form 4	170,932	$155.5K	2021-12-27
2021-12-22	S, sale reported on Form 4	288,768	$288.8K	2021-12-27

Mirum Pharmaceuticals, Inc. (MIRM)

10% 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.

Savara Inc (SVRA)

10% owner · 1 filing · 1 purchase or sale

Trade date	Code	Shares	Value as filed	Filed
2023-07-17	P, purchase reported on Form 4	333,333	$1,000.0K	2023-07-19

SpyGlass Pharma, Inc. (SGP)

10% owner · 1 filing · 1 purchase or sale

Trade date	Code	Shares	Value as filed	Filed
2026-02-09	P, purchase reported on Form 4	937,500	$15.0M	2026-02-11

Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1746342) 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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