CRESCENT BIOPHARMA, INC. (CBIO) Insider Trading

CRESCENT BIOPHARMA, INC. (CBIO) has 15 SEC Form 4 insider filings on record in the last 90 days. That includes 1 insider purchase totalling $20.0M, and 14 sales totalling $1.5M. Most recent filing: Sept. 18, 2026.

Filings
15
Purchases
1
$20.0M
Sales
14
$1.5M
Insiders
8

Most active CBIO insiders

Fairmount Funds Management LLC
Director
1 bought · 0 sold · July 20, 2026
$20.0M
Brumm Joshua T
Chief Executive Officer
0 bought · 2 sold · Sept. 18, 2026
$921K
McNeill Jonathan
President and COO
0 bought · 2 sold · Sept. 18, 2026
$447K
Pinkas Jan
Chief Scientific Officer
0 bought · 2 sold · Sept. 18, 2026
$35K
Im Ellie Eunkyung
Chief Medical Officer
0 bought · 2 sold · Sept. 18, 2026
$33K
Bispham Barbara Harlin
See Remarks
0 bought · 2 sold · Sept. 18, 2026
$33K
Scalzo Richard William
Chief Financial Officer
0 bought · 2 sold · Sept. 18, 2026
$30K
Lynch Ryan
See Remarks
0 bought · 2 sold · Sept. 18, 2026
$13K

Latest CBIO Form 4 filings

Date Insider Value Shares Stake Pre-planned Links
Sept. 18, 2026 filed Sept. 16, 2026 Lynch Ryan See Remarks −$4,296 240 −2% Yes
Sept. 18, 2026 filed Sept. 16, 2026 Pinkas Jan Chief Scientific Officer −$11,778 658 −3% Yes
Sept. 18, 2026 filed Sept. 16, 2026 Im Ellie Eunkyung Chief Medical Officer −$11,152 623 −3% Yes
Sept. 18, 2026 filed Sept. 16, 2026 Scalzo Richard William Chief Financial Officer −$10,167 568 −3% Yes
Sept. 18, 2026 filed Sept. 16, 2026 McNeill Jonathan President and COO −$77,235 4,570 −3% Yes

Showing the 5 most recent of 15 filings in the last 90 days.

About this data

Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.

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