Insider Ledger

CLYM insider buying and SEC filings, explained

Climb Bio, Inc. · CIK 1768446

Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov

Insider activity in the last 12 months

Bought
$780K
Insiders who bought
1
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$2.7M

Insider purchases and sales, last 12 months

TradedTypeWhat was filedSource
Sep 15, 2026Planned (10b5-1)Stephen Basil Thomas (Director) sold 100,000 shares at about $13.67 ($1.4M), marked as a 10b5-1 plan trade. Holdings down 18% to 467,969 shares.SEC filing
Filed Sep 17, 2026
Jun 29, 2026Planned (10b5-1)Aoife Brennan (CEO and Director) sold 30,902 shares at about $13.17 ($407K), marked as a 10b5-1 plan trade. Holdings down 26% to 87,731 shares.SEC filing
Filed Jun 30, 2026
Feb 25–26, 2026Planned (10b5-1)Stephen Basil Thomas (Director) sold 50,000 shares between Feb 25 and Feb 26 at about $7.00 ($350K), marked as a 10b5-1 plan trade. Holdings down 24% to 154,657 shares.SEC filing
Filed Feb 27, 2026
Feb 12–13, 2026Planned (10b5-1)Stephen Basil Thomas (Director) sold 100,000 shares between Feb 12 and Feb 13 at about $5.29 ($529K), marked as a 10b5-1 plan trade. Holdings down 33% to 204,657 shares.SEC filing
Filed Feb 17, 2026
Jan 5, 2026Purchase (code P)Peter Kolchinsky (Director and 10% owner) bought 7,111 shares indirectly at about $3.50 ($25K), reported as a purchase (code P). Indirect holdings up <1% to 3,403,429 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 6 other reporting owners.SEC filing
Filed Jan 7, 2026
Dec 11–12, 2025Purchase (code P)Peter Kolchinsky (Director and 10% owner) bought 314,561 shares indirectly between Dec 11, 2025 and Dec 12, 2025 at about $2.40 ($755K), reported as a purchase (code P). Indirect holdings up 10% to 3,396,318 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 6 other reporting owners.SEC filing
Filed Dec 15, 2025

17 routine transactions (such as grants, option exercises or tax withholding) are not listed.

Cluster buys

No cluster buys in the last 12 months.

Red flags

No red flags in the last 12 months.

Key events

No key events in the last 12 months.

8-K filings, last 12 months

No 8-K filings in the last 12 months.

Red flags are objective triggers only: the item or form filed, never an opinion.

Follow CLYM in the Insider Ledger app

A plain-English brief of insider purchases, 8-Ks and red flags at the companies you pick. No account needed.

Get the app