Celldex Therapeutics, Inc.

CLDXNASDAQHealthcare● Active

$28.56

$-0.06(-0.21%)

Market Cap$1.9B

P/E Ratio—

52W High$35.79

52W Low$19.25

Avg Volume958K

Open$28.87

Beta0.93

Insider Trades Ownership Employees

Celldex Therapeutics, Inc. (CLDX) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · CLDX · as of Jun 8, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

0.25

Buy/Sell (by trades)

Overall sentiment

BEARISH

↑ Buy 20%Active transactions only · RSU vesting excluded80% Sell ↓

Celldex Therapeutics, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 8, 2026

CLDX insider buying and selling by quarter

CLDX insider selling · CLDX insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

1.4M718K0

2023 Q1

2023 Q2

2024 Q1

2024 Q2

2024 Q4

2025 Q2

2025 Q3

2025 Q4

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 8, 2026

Active insiders

Most active in past 12 months · CLDX ceo insider trading

Showing all insiders · Click a card to filter the transactions table below

▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API

Recent insider transactions

CLDX executive sell shares · CLDX board member insider trading · CLDX insider trading SEC filing

Showing 39 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Jan 2, 2026	Martin Samuel Bates SVP AND CFO	Option	4,817	$10.38	$50K	32,942	Form 4
Dec 15, 2025	PEPIN RONALD SR. VP & CBO	Option	11,000	$2.78	$31K	20,097	Form 4
Dec 15, 2025	PEPIN RONALD SR. VP & CBO	Option	8,333	$9.02	$75K	9,097	Form 4
Dec 4, 2025	Jimenez Freddy A. SVP & GENERAL COUNSEL	Sale	4,166	$29.09	$121K	30,796	Form 4
Nov 13, 2025	Wright Richard M. other: Former Officer	Option	15,750	$22.48	$354K	70,131	Form 4
Nov 13, 2025	Wright Richard M. other: Former Officer	Option	26,672	$10.38	$277K	54,381	Form 4
Nov 13, 2025	Wright Richard M. other: Former Officer	Option	6,876	$9.02	$62K	27,709	Form 4
Nov 13, 2025	Wright Richard M. other: Former Officer	Sale	49,298	$24.00	$1.18M⚡	20,833	Form 4
Aug 13, 2025	Jimenez Freddy A. SVP & GENERAL COUNSEL	Sale	341	$23.95	$8K	35,392	Form 4
Aug 13, 2025	Jimenez Freddy A. SVP & GENERAL COUNSEL	Sale	430	$25.41	$11K	34,962	Form 4
Nov 18, 2024	MARINO JAMES J Director	Gift	10,500	—	—	2,204	Form 4
Nov 11, 2024	Marucci Anthony S PRESIDENT & CEO · Director	Purchase	11,500	$26.82	$308K	40,284	Form 4
Jun 14, 2024	Martin Samuel Bates SVP AND CFO	Option	16,968	$10.38	$176K	45,297	Form 4
Jun 14, 2024	Martin Samuel Bates SVP AND CFO	Option	3,201	$9.02	$29K	28,329	Form 4
Jun 14, 2024	Martin Samuel Bates SVP AND CFO	Sale	17,172	$35.42	$608K	28,125	Form 4
Jun 14, 2024	Crowley Elizabeth SR. VP & CPDO	Option	30,000	$10.38	$311K	39,074	Form 4
Jun 14, 2024	Crowley Elizabeth SR. VP & CPDO	Sale	30,000	$34.87	$1.05M⚡	9,074	Form 4
Jun 11, 2024	Young Diane C. SVP, CHIEF MEDICAL OFFICER	Option	15,000	$2.71	$41K	17,115	Form 4
Jun 7, 2024	Crowley Elizabeth SR. VP & CPDO	Option	7,500	$9.02	$68K	24,074	Form 4
Jun 7, 2024	Crowley Elizabeth SR. VP & CPDO	Option	7,500	$10.38	$78K	16,574	Form 4
Jun 7, 2024	Crowley Elizabeth SR. VP & CPDO	Sale	15,000	$35.06	$526K	9,074	Form 4
Jun 7, 2024	Young Diane C. SVP, CHIEF MEDICAL OFFICER	Sale	45,000	$35.26	$1.59M⚡	2,115	Form 4
Jun 5, 2024	Jimenez Freddy A. SVP & GENERAL COUNSEL	Option	9,540	$10.38	$99K	35,464	Form 4
Jun 3, 2024	Heath-Chiozzi Margo SVP OF REGULATORY AFFAIRS	Option	58,369	$10.38	$606K	71,752	Form 4
Jun 3, 2024	Heath-Chiozzi Margo SVP OF REGULATORY AFFAIRS	Sale	58,369	$33.65	$1.96M⚡	13,383	Form 4

Martin Samuel Bates

SVP AND CFO

Option

Date

Jan 2

4,817

Price

$10.38

Value

$50K

View Form 4 on SEC.gov

PEPIN RONALD

SR. VP & CBO

Option

Date

Dec 15

11,000

Price

$2.78

Value

$31K

View Form 4 on SEC.gov

PEPIN RONALD

SR. VP & CBO

Option

Date

Dec 15

8,333

Price

$9.02

Value

$75K

View Form 4 on SEC.gov

Jimenez Freddy A.

SVP & GENERAL COUNSEL

Sale

Date

Dec 4

4,166

Price

$29.09

Value

$121K

View Form 4 on SEC.gov

Wright Richard M.

other: Former Officer

Option

Date

Nov 13

15,750

Price

$22.48

Value

$354K

View Form 4 on SEC.gov

Wright Richard M.

other: Former Officer

Option

Date

Nov 13

26,672

Price

$10.38

Value

$277K

View Form 4 on SEC.gov

Wright Richard M.

other: Former Officer

Option

Date

Nov 13

6,876

Price

$9.02

Value

$62K

View Form 4 on SEC.gov

Wright Richard M.

other: Former Officer

Sale

Date

Nov 13

49,298

Price

$24.00

Value

$1.18M ⚡

View Form 4 on SEC.gov

Jimenez Freddy A.

SVP & GENERAL COUNSEL

Sale

Date

Aug 13

341

Price

$23.95

Value

$8K

View Form 4 on SEC.gov

Jimenez Freddy A.

SVP & GENERAL COUNSEL

Sale

Date

Aug 13

430

Price

$25.41

Value

$11K

View Form 4 on SEC.gov

MARINO JAMES J

Director

Gift

Date

Nov 18

10,500

Price

—

Value

—

View Form 4 on SEC.gov

Marucci Anthony S

PRESIDENT & CEO · Director

Purchase

Date

Nov 11

11,500

Price

$26.82

Value

$308K

View Form 4 on SEC.gov

Martin Samuel Bates

SVP AND CFO

Option

Date

Jun 14

16,968

Price

$10.38

Value

$176K

View Form 4 on SEC.gov

Martin Samuel Bates

SVP AND CFO

Option

Date

Jun 14

3,201

Price

$9.02

Value

$29K

View Form 4 on SEC.gov

Martin Samuel Bates

SVP AND CFO

Sale

Date

Jun 14

17,172

Price

$35.42

Value

$608K

View Form 4 on SEC.gov

Crowley Elizabeth

SR. VP & CPDO

Option

Date

Jun 14

30,000

Price

$10.38

Value

$311K

View Form 4 on SEC.gov

Crowley Elizabeth

SR. VP & CPDO

Sale

Date

Jun 14

30,000

Price

$34.87

Value

$1.05M ⚡

View Form 4 on SEC.gov

Young Diane C.

SVP, CHIEF MEDICAL OFFICER

Option

Date

Jun 11

15,000

Price

$2.71

Value

$41K

View Form 4 on SEC.gov

Crowley Elizabeth

SR. VP & CPDO

Option

Date

Jun 7

7,500

Price

$9.02

Value

$68K

View Form 4 on SEC.gov

Crowley Elizabeth

SR. VP & CPDO

Option

Date

Jun 7

7,500

Price

$10.38

Value

$78K

View Form 4 on SEC.gov

Crowley Elizabeth

SR. VP & CPDO

Sale

Date

Jun 7

15,000

Price

$35.06

Value

$526K

View Form 4 on SEC.gov

Young Diane C.

SVP, CHIEF MEDICAL OFFICER

Sale

Date

Jun 7

45,000

Price

$35.26

Value

$1.59M ⚡

View Form 4 on SEC.gov

Jimenez Freddy A.

SVP & GENERAL COUNSEL

Option

Date

Jun 5

9,540

Price

$10.38

Value

$99K

View Form 4 on SEC.gov

Heath-Chiozzi Margo

SVP OF REGULATORY AFFAIRS

Option

Date

Jun 3

58,369

Price

$10.38

Value

$606K

View Form 4 on SEC.gov

Heath-Chiozzi Margo

SVP OF REGULATORY AFFAIRS

Sale

Date

Jun 3

58,369

Price

$33.65

Value

$1.96M ⚡

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

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▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About CLDX insider trading

CLDX insider trades

Celldex Therapeutics, Inc. (CLDX) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Wright Richard M. (other: Former Officer), Jimenez Freddy A. (SVP & GENERAL COUNSEL), PEPIN RONALD (SR. VP & CBO). Over the past 12 months, 4 insiders have filed transactions with the SEC. CLDX insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For Celldex Therapeutics, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

CLDX insider trading · 5 questions

The insiders of Celldex Therapeutics, Inc. (CLDX) include executives and directors such as Wright Richard M. (other: Former Officer), Jimenez Freddy A. (SVP & GENERAL COUNSEL), PEPIN RONALD (SR. VP & CBO), among others. Over the past 12 months, 4 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

CLDX board member insider tradingwho are CLDX insidersCLDX insider rosterCelldex Therapeutics, Inc. executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026