// company-profile

Climb Bio, Inc.

CLYM
ExchangeNasdaqSectorPharmaceutical PreparationsInc.DEFilings68Insiders23
// api This Climb Bio, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.

// activity-summary

Recent insider activity is bullish. Over the last 30 days, 7 insiders purchased shares. Buying was led by WILLIAMS DOUGLAS E.

// 90-day insight

Over the last 90 days, Climb Bio, Inc. insiders bought $20.0M across 8 transactions with no open-market sales.

  • Most active insider: RA CAPITAL MANAGEMENT, L.P. with 2 transactions totaling $20.0M.
  • Largest single purchase: $20.0M by RA CAPITAL MANAGEMENT, L.P. on Apr 29, 2026.

Activity skews bullish — buys outpace sales.

Institutional Ownership

Top 13F-HR holders of Climb Bio, Inc. as of 2026-03-31

↑ increasing
Total reported AUM
$207.2M
QoQ change
+39.9%
Reporting period
2026-03-31
#1
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
$60.4M
8.8M shares
#2
MPM BIOIMPACT LLC
CIK 1687078
$17.8M
2.6M shares
#3
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
$17.0M
2.5M shares

Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jun 5, 2026WILLIAMS DOUGLAS ECLYM
Award
40,000$0.00$0K
Jun 5, 2026Cumbo AlexanderCLYM
Award
40,000$0.00$0K
Jun 5, 2026Dunn JudithCLYM
Award
40,000$0.00$0K
Jun 5, 2026Drapkin Kimberlee CCLYM
Award
40,000$0.00$0K
Jun 5, 2026RA CAPITAL MANAGEMENT, L.P.CLYM
Award
40,000$0.00$0K

45 more transactions hidden

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