CLDX · Celldex Therapeutics, Inc. · Holdings

$31.65 -0.53 (-1.65%) At close · Oct 2

Russell 2000 member Rebalance outlook locked

Market Cap

$2.50B

78.53M

Volume · Oct 2 2.41M Avg daily vol (3M) 1.26M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 258

Total Value: $3,191,057,441

Total Shares: 85,783,151

Showing 1–100 of 270 holdings by value · page 1 of 3

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 258 13F filers

Top Holder

11.1%

of institutional value

Top 5

35.5%

of institutional value

Top 10

52.1%

of institutional value

HHI

380

Broadly held

Showing 100 of 270

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

WELLINGTON MANAGEMENT GROUP LLP

$355,119,994

11.13%

9,543,671

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wellington Management Company LLP	8,396,004	$312,415,308	88.0%	Defined
Wellington Managment Canada LLC	142,803	$5,313,699	1.5%	Defined
Wellington Management Singapore Pte. Ltd.	105,592	$3,929,078	1.1%	Defined
Wellington Management International Ltd	80,122	$2,981,339	0.8%	Defined
Wellington Trust Company, NA joint	750,958	$27,943,147	7.9%	Defined
Wellington Management Australia Pty Ltd	5,394	$200,710	0.1%	Defined
Wellington Management Europe GmbH	62,798	$2,336,713	0.7%	Defined

BlackRock, Inc.

$260,564,135

8.17%

7,002,530

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	173,877	$6,469,963	2.5%	Sole
BlackRock Investment Management (Australia) Ltd	151	$5,618	0.0%	Sole
BlackRock Asset Management Canada Ltd	15,008	$558,447	0.2%	Sole
BlackRock Investment Management, LLC	270,548	$10,067,091	3.9%	Sole
BLACKROCK ADVISORS LLC	521,713	$19,412,940	7.5%	Sole
BlackRock Fund Advisors	3,049,377	$113,467,318	43.5%	Sole
BlackRock Institutional Trust Company, N.A.	2,712,738	$100,940,980	38.7%	Sole
BlackRock Japan Co. Ltd	2,859	$106,383	0.0%	Sole
BlackRock Fund Managers Ltd.	11,458	$426,352	0.2%	Sole
BlackRock Investment Management (UK) Ltd.	33,539	$1,247,986	0.5%	Sole
BlackRock (Netherlands) B.V.	261	$9,711	0.0%	Sole
BlackRock Asset Management Ireland Ltd	113,001	$4,204,767	1.6%	Sole
BlackRock (Luxembourg) S.A.	12,710	$472,939	0.2%	Sole
BlackRock Asset Management Schweiz AG	12,513	$465,608	0.2%	Sole
Aperio Group, LLC	72,777	$2,708,032	1.0%	Sole

Kynam Capital Management, LP

$198,065,406

6.21%

5,322,908

PRICE T ROWE ASSOCIATES INC /MD/

$174,337,147

5.46%

4,685,223

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	123,240	$4,585,760	2.6%	Defined
Held directly	4,561,983	$169,751,387	97.4%	Sole

STATE STREET CORP

$145,134,888

4.55%

3,900,427

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	3,900,427	$145,134,888	100.0%	Defined

FMR LLC

$138,528,661

4.34%

3,722,888

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	2,341,070	$87,111,214	62.9%	Defined
STRATEGIC ADVISERS LLC	1,077	$40,075	0.0%	Defined
Fidelity Institutional Asset Management Trust Co	707,887	$26,340,475	19.0%	Defined
FIAM LLC	672,854	$25,036,897	18.1%	Defined

VANGUARD CAPITAL MANAGEMENT LLC

$128,926,361

4.04%

3,464,831

Deep Track Capital, LP

$109,365,808

3.43%

2,939,151

Logos Global Management LP

$78,141,000

2.45%

2,100,000

GEODE CAPITAL MANAGEMENT, LLC

$75,247,028

2.36%

2,022,226

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	292,642	$10,889,208	14.5%	Defined
Held directly	1,729,584	$64,357,820	85.5%	Defined

Eversept Partners, LP

$66,454,864

2.08%

1,785,941

GOLDMAN SACHS GROUP INC

$60,106,911

1.88%

1,615,343

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	845,252	$31,451,826	52.3%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	750,468	$27,924,914	46.5%	Defined
Goldman Sachs Trust Company, N.A. joint	19,623	$730,171	1.2%	Other

Commodore Capital LP

$50,233,500

1.57%

1,350,000

Bellevue Group AG

$44,652,000

1.40%

1,200,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BB Biotech AG joint	1,200,000	$44,652,000	100.0%	Defined

BAKER BROS. ADVISORS LP

$44,004,955

1.38%

1,182,611

MILLENNIUM MANAGEMENT LLC

$43,564,984

1.37%

1,170,787

DIMENSIONAL FUND ADVISORS LP

$39,962,979

1.25%

1,073,985

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	6,761	$251,576	0.6%	Defined
DFA Australia Ltd.	21,397	$796,182	2.0%	Defined
Dimensional Fund Advisors Pte. Ltd.	426	$15,851	0.0%	Defined
Dimensional Ireland Ltd	42,270	$1,572,866	3.9%	Defined
Held directly	1,003,131	$37,326,504	93.4%	Sole

AMERICAN CENTURY COMPANIES INC

$38,787,517

1.22%

1,042,395

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	1,042,395	$38,787,517	100.0%	Defined

EVENTIDE ASSET MANAGEMENT, LLC

$38,586,770

1.21%

1,037,000

NOVO HOLDINGS A/S

$38,140,250

1.20%

1,025,000

Elmind Capital, LP

$36,837,900

1.15%

990,000

Driehaus Capital Management LLC

$36,817,136

1.15%

989,442

Fisher Asset Management, LLC

$36,677,041

1.15%

985,677

Pictet Asset Management Holding SA

$34,136,751

1.07%

917,408

Foresite Capital Management VI LLC

$32,734,120

1.03%

879,713

VANGUARD PORTFOLIO MANAGEMENT LLC

$32,132,174

1.01%

863,536

Assenagon Asset Management S.A.

$29,347,378

0.92%

788,696

NORTHERN TRUST CORP

$26,778,062

0.84%

719,647

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	660,306	$24,569,985	91.8%	Defined
NORTHERN TRUST GLOBAL INVESTMENTS LTD	47,221	$1,757,092	6.6%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	12,120	$450,985	1.7%	Other

Woodline Partners LP

$26,077,884

0.82%

700,830

Affinity Asset Advisors, LLC

$26,047,000

0.82%

700,000

Rock Springs Capital Management LP

$26,015,222

0.82%

699,146

TWO SIGMA INVESTMENTS, LP

$24,604,554

0.77%

661,235

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$24,408,048

0.76%

655,954

ALGERT GLOBAL LLC

$24,105,977

0.76%

647,836

ADAR1 Capital Management, LLC

$23,053,157

0.72%

619,542

BANK OF AMERICA CORP /DE/

$22,593,725

0.71%

607,195

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	255,817	$9,518,950	42.1%	Defined
BOFA SECURITIES, INC.	339,415	$12,629,632	55.9%	Defined
MANAGED ACCOUNT ADVISORS LLC	11,963	$445,143	2.0%	Defined

PANAGORA ASSET MANAGEMENT INC

$21,304,138

0.67%

572,538

Nuveen, LLC

$21,152,396

0.66%

568,460

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Nuveen Asset Management, LLC joint	9,645	$358,890	1.7%	Defined
TEACHERS ADVISORS, LLC joint	558,815	$20,793,506	98.3%	Defined

VANGUARD FIDUCIARY TRUST CO

$20,576,125

0.64%

552,973

5AM Venture Management, LLC

$18,503,416

0.58%

497,270

FEDERATED HERMES, INC.

$18,340,548

0.57%

492,893

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
FEDERATED GLOBAL INVESTMENT MANAGEMENT CORP	492,893	$18,340,548	100.0%	Defined

UBS Group AG

$17,935,107

0.56%

481,997

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	27,393	$1,019,293	5.7%	Defined
UBS AG	435,072	$16,189,029	90.3%	Defined
UBS Switzerland AG	19,532	$726,785	4.1%	Defined

Candriam S.C.A.

$17,902,661

0.56%

481,125

Ikarian Capital, LLC

$17,804,985

0.56%

478,500

BRAIDWELL LP

$16,247,597

0.51%

436,646

Redmile Group, LLC

$16,146,200

0.51%

433,921

CITIGROUP INC

$15,058,998

0.47%

404,703

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	404,703	$15,058,998	100.0%	Defined

Palo Alto Investors LP

$14,878,641

0.47%

399,856

TSP Capital Management Group, LLC

$13,809,635

0.43%

371,127

PFM Health Sciences, LP

$12,753,764

0.40%

342,751

KENNEDY CAPITAL MANAGEMENT LLC

$12,738,024

0.40%

342,328

SEGALL BRYANT & HAMILL, LLC

$12,513,388

0.39%

336,291

Tetragon Partners GP Ltd

$10,807,309

0.34%

290,441

SUPERSTRING CAPITAL MANAGEMENT LP

$10,700,963

0.34%

287,583

GordonMD Global Investments LP

$10,408,381

0.33%

279,720

SummitTX Capital, L.P.

$9,487,024

0.30%

254,959

SPHERA FUNDS MANAGEMENT LTD.

$8,962,698

0.28%

240,868

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Sphera Global Healthcare Management LP joint	240,868	$8,962,698	100.0%	Defined

Bank of New York Mellon Corp

$8,341,587

0.26%

224,176

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	81,182	$3,020,782	36.2%	Defined
The Bank of New York Mellon	141,168	$5,252,861	63.0%	Defined
BNY Mellon, NA joint	1,825	$67,907	0.8%	Defined
Held directly	1	$37	0.0%	Defined

Rosalind Advisors, Inc.

$7,442,000

0.23%

200,000

MORGAN STANLEY

$7,329,399

0.23%

196,974

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	36	$1,339	0.0%	Defined
MORGAN STANLEY & CO. LLC	24,757	$921,207	12.6%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	69,524	$2,586,988	35.3%	Defined
MORGAN STANLEY SMITH BARNEY LLC	15,614	$580,996	7.9%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	87,043	$3,238,869	44.2%	Defined

Universal- Beteiligungs- und Servicegesellschaft mbH

$7,285,271

0.23%

195,788

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Universal-Investment-Gesellschaft mbH joint	195,788	$7,285,271	100.0%	Defined

Trexquant Investment LP

$6,866,138

0.22%

184,524

Mirador Capital Partners LP

$6,737,019

0.21%

181,054

STEMPOINT CAPITAL LP

$6,638,710

0.21%

178,412

Corient Private Wealth LLC

$6,584,532

0.21%

176,956

DEUTSCHE BANK AG\

$6,570,987

0.21%

176,592

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS INVESTMENT MANAGEMENT AMERICAS, INC	96,794	$3,601,704	54.8%	Defined
DWS Investments UK Ltd	79,798	$2,969,283	45.2%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$6,422,446

0.20%

172,600

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	172,600	$6,422,446	100.0%	Other

JPMORGAN CHASE & CO

$5,850,936

0.18%

157,241

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	38,518	$1,433,254	24.5%	Defined
J.P. Morgan Investment Management Inc.	118,641	$4,414,631	75.5%	Defined
J.P. Morgan Securities plc	82	$3,051	0.1%	Defined

Cinctive Capital Management LP

$5,419,152

0.17%

145,637

BOOTHBAY FUND MANAGEMENT, LLC

$5,211,781

0.16%

140,064

FIRST TRUST ADVISORS LP

$5,160,357

0.16%

138,682

Swiss National Bank

$5,023,350

0.16%

135,000

UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC

$5,021,783

0.16%

134,958

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Group AG	2,915	$108,467	2.2%	Defined
UBS Asset Management Switzerland AG	99,297	$3,694,840	73.6%	Defined
UBS Asset Management (UK) Ltd.	23,279	$866,210	17.2%	Defined
Held directly	9,467	$352,266	7.0%	Defined

SUVRETTA CAPITAL MANAGEMENT, LLC

$4,513,461

0.14%

121,297

Connor, Clark & Lunn Investment Management Ltd.

$4,481,125

0.14%

120,428

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	120,428	$4,481,125	100.0%	Sole

Point72 Asset Management, L.P.

$4,361,644

0.14%

117,217

BNP PARIBAS ASSET MANAGEMENT Holding S.A.

$4,355,243

0.14%

117,045

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BNP PARIBAS ASSET MANAGEMENT Europe	1,012	$37,656	0.9%	Defined
AXA INVESTMENT MANAGERS UK LIMITED	116,033	$4,317,587	99.1%	Defined

Jump Financial, LLC

$4,327,262

0.14%

116,293

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jump Trading Holdings, LLC	763	$28,391	0.7%	Defined
Leap GP LLC joint	115,530	$4,298,871	99.3%	Defined

Ikarian Capital, LLC

$4,241,940

0.13%

114,000

RHUMBLINE ADVISERS

$3,905,673

0.12%

104,963

Propel Bio Management, LLC

$3,858,490

0.12%

103,695

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Simplify Asset Management Inc.	103,695	$3,858,490	100.0%	Defined

Invesco Ltd.

$3,837,502

0.12%

103,131

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	12,602	$468,919	12.2%	Defined
Invesco Trust Co joint	31,135	$1,158,533	30.2%	Defined
Invesco Capital Management LLC	59,394	$2,210,050	57.6%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$3,754,489

0.12%

100,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	100,900	$3,754,489	100.0%	Other

Russell Investments Group, Ltd.

$3,737,818

0.12%

100,452

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	40,478	$1,506,186	40.3%	Defined
Russell Investments Capital, LLC	59,974	$2,231,632	59.7%	Defined

Integral Health Asset Management, LLC

$3,721,000

0.12%

100,000

Odyssean, LLC

$3,537,517

0.11%

95,069

Caption Management, LLC

$3,348,900

0.10%

90,000

MANUFACTURERS LIFE INSURANCE COMPANY, THE

$3,324,266

0.10%

89,338

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MANULIFE FINANCIAL CORP joint	89,338	$3,324,266	100.0%	Defined

ALLIANCEBERNSTEIN L.P.

$3,298,294

0.10%

88,640

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	88,640	$3,298,294	100.0%	Defined

HighVista Strategies LLC

$3,235,930

0.10%

86,964

AQR CAPITAL MANAGEMENT LLC

$3,233,286

0.10%

86,893

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Petros Family Wealth, LLC	25	$930	0.0%	Other
RF&L WEALTH MANAGEMENT, LLC	2	$74	0.0%	Other
Compound Planning, Inc.	11	$409	0.0%	Other
Arax Advisory Partners	134	$4,986	0.2%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	46	$1,711	0.1%	Other
Stokes Family Office, LLC	1	$37	0.0%	Other
Held directly	86,674	$3,225,139	99.7%	Defined

Seven Fleet Capital Management LP

$3,224,767

0.10%

86,664

DIADEMA PARTNERS LP

$3,200,060

0.10%

86,000

PDT Partners, LLC

$3,010,251

0.09%

80,899

TD Asset Management Inc

$2,951,720

0.09%

79,326

ALPS ADVISORS INC

$2,945,729

0.09%

79,165

WELLS FARGO & COMPANY/MN

$2,908,928

0.09%

78,176

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	70,192	$2,611,844	89.8%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	2,100	$78,141	2.7%	Defined
WELLS FARGO CLEARING SERVICES, LLC	5,841	$217,343	7.5%	Defined
WELLS FARGO INVESTMENT INSTITUTE, INC.	43	$1,600	0.1%	Defined

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

$2,892,072

0.09%

77,723

XTX Topco Ltd

$2,795,773

0.09%

75,135

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	75,135	$2,795,773	100.0%	Defined

Birchview Capital, LP

$2,600,979

0.08%

69,900

Key facts CIK 744218 CUSIP 15117B202 13F (30d) 5 filings 5 filers Visit website Investor relations