Ikarian Capital, LLC

Position in CLDX — Celldex Therapeutics, Inc.

CIK 1778253 DALLAS, TX

Back to CLDX Full portfolio

Position in CLDX

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$17,804,985

+$3,174,231 QoQ

Shares Held

478,500

+3.7% QoQ

Ownership

0.609%

of shares outstanding

% of Portfolio

2.88%

of 13F equity value

Holder Rank

#44

of 252 holders

Holding Since

Jun 2020

19 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in CLDX Over Time

Shares Held

Position Value (USD)

Derivatives in CLDX

reported options exposure · as of Jun 30, 2026

CallValue

CallShares

PutValue

$4,241,940

PutShares

114,000

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Ikarian Capital, LLC holds $559,861,982 across 103 Biotechnology names. CLDX ranks #6 (3.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ABVX	Abivax S.A.	328,635	$43,793,900
2	KOD	Kodiak Sciences Inc.	1,059,730	$41,287,080
3	ALMS	Alumis Inc.	870,548	$24,497,220
4	PRAX	Praxis Precision Medicines, Inc.	72,842	$24,386,773
5	PCVX	Vaxcyte, Inc.	388,682	$22,594,084
6	CLDX	Celldex Therapeutics, Inc. This page	478,500	$17,804,985
7	RCUS	Arcus Biosciences, Inc.	504,559	$15,555,553
8	RLMD	Relmada Therapeutics, Inc.	2,148,359	$14,866,644

All Filings in CLDX

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38 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$4,241,940	114,000	0.0%	Put	Sole	2026-08-14
2026-06-30	$17,804,985	478,500	+3.7%	Shares	Sole	2026-08-14
2026-03-31	$14,630,754	461,247	+334.9%	Shares	Sole	2026-05-15
2026-03-31	$3,616,080	114,000	+540.4%	Put	Sole	2026-05-15
2025-03-31	$323,070	17,800	-91.3%	Put	Sole	2025-05-15
2025-03-31	$323,070	17,800	-94.2%	Call	Sole	2025-05-15
2024-12-31	$5,192,985	205,500	-32.7%	Put	Sole	2025-02-14
2024-09-30	$10,383,945	305,500	+152650.0%	Put	Sole	2024-11-14
2024-09-30	$10,383,945	305,500	-39.7%	Call	Sole	2024-11-14
2023-12-31	$7,932	200	-79.4%	Put	Sole	2024-02-14
2023-09-30	$26,721	971	-99.1%	Put	Sole	2023-11-14
2023-03-31	$3,957,800	110,000	-82.2%	Put	Sole	2023-05-15
2023-03-31	$3,815,930	106,057	-60.3%	Shares	Sole	2023-05-15
2022-12-31	$11,921,405	267,476	-15.7%	Shares	Sole	2023-02-14
2022-09-30	$8,924,250	317,476	-41.0%	Shares	Sole	2022-11-14
2022-06-30	$13,655,240	506,500	+47.2%	Call	Sole	2022-08-12
2022-06-30	$14,503,347	537,958	0.0%	Shares	Sole	2022-08-12
2022-06-30	$16,626,232	616,700	+3.6%	Put	Sole	2022-08-12
2022-03-31	$20,282,730	595,500	+32.0%	Put	Sole	2022-05-13
2022-03-31	$11,720,046	344,100	-42.1%	Call	Sole	2022-05-13
2022-03-31	$18,322,849	537,958	+28.3%	Shares	Sole	2022-05-13
2021-12-31	$16,198,506	419,216	+55.0%	Shares	Sole	2022-02-14
2021-12-31	$17,434,368	451,200	-13.3%	Put	Sole	2022-02-14
2021-12-31	$22,944,432	593,800	-25.0%	Call	Sole	2022-02-14
2021-09-30	$42,738,484	791,600	+31.9%	Call	Sole	2021-11-15
2021-09-30	$28,085,598	520,200	+3151.2%	Put	Sole	2021-11-15
2021-09-30	$14,600,569	270,431	-26.0%	Shares	Sole	2021-11-15
2021-06-30	$12,223,791	365,544	-38.7%	Shares	Sole	2021-08-18
2021-06-30	$535,040	16,000	—	Put	Sole	2021-08-18
2021-06-30	$20,064,000	600,000	+19.2%	Call	Sole	2021-08-18
2021-03-31	$12,283,574	596,290	-56.3%	Shares	Sole	2021-08-18
2021-03-31	$10,372,100	503,500	+25.9%	Call	Sole	2021-08-18
2020-12-31	$23,914,624	1,364,990	-7.1%	Shares	Sole	2021-02-12
2020-12-31	$7,008,000	400,000	+527.0%	Call	Sole	2021-02-12
2020-09-30	$21,796,095	1,469,730	-10.8%	Shares	Sole	2020-11-16
2020-09-30	$946,154	63,800	-76.8%	Call	Sole	2020-11-16
2020-06-30	$3,568,500	274,500	—	Call	Sole	2020-08-14
2020-06-30	$21,416,707	1,647,439	—	Shares	Sole	2020-08-14
No filing history on record for this holder in this stock.