// company-profile
Celldex Therapeutics, Inc.
CLDXExchangeNasdaqSectorIn Vitro & In Vivo Diagnostic SubstancesInc.DEFilings75Insiders20
// api This Celldex Therapeutics, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
No insider activity recorded for CLDX in the last 90 days.
Institutional Ownership
Top 13F-HR holders of Celldex Therapeutics, Inc. as of 2026-03-31
Total reported AUM
$2.20B
QoQ change
+23.7%
Reporting period
2026-03-31
#1
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
$241.5M
7.6M shares
#2
Kynam Capital Management, LP
CIK 1907884
$185.3M
5.8M shares
#3
Point72 Asset Management, L.P.
CIK 1603466
$102.5M
3.2M 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.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jan 2, 2026 | Martin Samuel Bates | CLDX | Option Exercise | 4,817 | $0.00 | $0K |
| Jan 2, 2026 | Martin Samuel Bates | CLDX | Option Exercise | 4,817 | $10.38 | $50K |
| Dec 15, 2025 | PEPIN RONALD | CLDX | Option Exercise | 11,000 | $2.78 | $31K |
| Dec 15, 2025 | PEPIN RONALD | CLDX | Option Exercise | 11,000 | $0.00 | $0K |
| Dec 15, 2025 | PEPIN RONALD | CLDX | Option Exercise | 8,333 | $0.00 | $0K |
45 more transactions hidden
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