Why is $CLDX stock down today?

Celldex Therapeutics, Inc · IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES

Why is $CLDX down today?

The likely driver

Celldex Therapeutics, Inc.: Q3 FY2026 results, three months to Sep 30, 2026

SEC filing · Nov 5

The numbers behind the move

Short interest

12.2% of float

Days to cover

5.9d

Float

78.5M · Medium

Float rotation

0.0x

Dilution

Heavy

Insider buying

1 open-market

CLDX: 12.2% of the float is sold short (5.9 days to cover), active share dilution on file, 1 open-market insider buy.

Price

$28.27

Move today

-0.3%

Volume vs avg

0.8x

Scanner alerts today

Flagged in 30 days

Market cap

$2.2B

Prev close

$28.35

Avg volume

1.4M

Catch the next move like CLDX before the open

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Today’s scanner timeline

3:56 PMUnusual volume (RVOL) alert
3:20 PMUnusual volume (RVOL) alert
11:23 AMUnusual volume (RVOL) alert
9:31 AMUnusual volume (RVOL) alert

Unusual-volume alerts often fire before the news is widely reported. This is when our scanner first flagged CLDX today.

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Other stocks moving today

$COOK +24.7%$RGS -24.4%$STEM -24.3%$ITG -23.4%$MEI -23.4%$PENG -23.0%$AXTI -22.8%$WRBY +22.5%

Each opens that stock’s own why-is-it-moving page.

Move and volume are based on the latest market data and refresh live on this page. Scanner alerts are our own real-time unusual-volume signals. This is research, not investment advice.