GERN · Geron Corp · Holdings

$1.23 +0.01 (+0.80%)

Russell 2000 member Rebalance outlook locked

Market Cap

$787.03M

642.47M

Volume · Oct 9 5.64M Avg daily vol (3M) 10.09M

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: 261

Total Value: $612,204,493

Total Shares: 478,298,680

Showing 1–100 of 268 holdings by value · page 1 of 3

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 261 13F filers

Top Holder

10.3%

of institutional value

Top 5

41.8%

of institutional value

Top 10

62.1%

of institutional value

HHI

489

Broadly held

Showing 100 of 268

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

BlackRock, Inc.

$62,867,924

10.27%

49,115,571

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	497,898	$637,309	1.0%	Sole
BlackRock Investment Management (Australia) Ltd	1,867	$2,389	0.0%	Sole
BlackRock Asset Management Canada Ltd	4,268	$5,463	0.0%	Sole
BlackRock Investment Management, LLC	1,524,310	$1,951,116	3.1%	Sole
BLACKROCK ADVISORS LLC	1,255,314	$1,606,801	2.6%	Sole
BlackRock Fund Advisors	25,512,974	$32,656,606	51.9%	Sole
BlackRock Institutional Trust Company, N.A.	17,310,726	$22,157,729	35.2%	Sole
BlackRock Fund Managers Ltd.	110,285	$141,164	0.2%	Sole
BlackRock Investment Management (UK) Ltd.	244,668	$313,175	0.5%	Sole
BlackRock Asset Management Ireland Ltd	2,194,089	$2,808,433	4.5%	Sole
BlackRock Asset Management Schweiz AG	84,895	$108,665	0.2%	Sole
Aperio Group, LLC	374,277	$479,074	0.8%	Sole

RA CAPITAL MANAGEMENT, L.P.

$54,796,481

8.95%

42,809,751

Soleus Capital Management, L.P.

$54,795,083

8.95%

42,808,659

STATE STREET CORP

$45,896,538

7.50%

35,856,671

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	35,856,671	$45,896,538	100.0%	Defined

CITADEL ADVISORS LLC

$37,169,827

6.07%

29,038,928

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

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	5,830,547	$7,463,100	20.1%	Defined
Held directly	23,208,381	$29,706,727	79.9%	Defined

VANGUARD CAPITAL MANAGEMENT LLC

$34,880,275

5.70%

27,250,215

Clearbridge Investments, LLC

$25,150,531

4.11%

19,648,853

Eversept Partners, LP

$23,958,300

3.91%

18,717,422

GOLDMAN SACHS GROUP INC

$21,290,709

3.48%

16,633,368

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	15,936,224	$20,398,366	95.8%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	678,385	$868,332	4.1%	Defined
Goldman Sachs Trust Company, N.A.	18,759	$24,011	0.1%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$18,631,621

3.04%

14,555,954

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	2,015,554	$2,579,909	13.8%	Defined
Held directly	12,540,400	$16,051,712	86.2%	Defined

MORGAN STANLEY

$16,570,149

2.71%

12,945,431

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	205	$262	0.0%	Defined
MORGAN STANLEY & CO. LLC	276,854	$354,373	2.1%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	12,476,749	$15,970,238	96.4%	Defined
MORGAN STANLEY SMITH BARNEY LLC	162,381	$207,847	1.3%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	29,242	$37,429	0.2%	Defined

Nantahala Capital Management, LLC

$15,648,000

2.56%

12,225,000

VANGUARD PORTFOLIO MANAGEMENT LLC

$13,840,125

2.26%

10,812,598

Vivo Capital, LLC

$11,099,900

1.81%

8,671,797

MILLENNIUM MANAGEMENT LLC

$10,383,701

1.70%

8,112,267

Kynam Capital Management, LP

$8,750,487

1.43%

6,836,318

Candriam S.C.A.

$7,154,152

1.17%

5,589,182

FMR LLC

$7,043,592

1.15%

5,502,807

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	5,500,115	$7,040,147	100.0%	Defined
STRATEGIC ADVISERS LLC	2,692	$3,445	0.0%	Defined

Pale Fire Capital SE

$6,793,221

1.11%

5,307,204

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

Manager	Shares	Value (USD)	% of position	Discretion
Barta Jan joint	5,307,204	$6,793,221	100.0%	Defined

NORTHERN TRUST CORP

$6,441,229

1.05%

5,032,212

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	4,586,370	$5,870,553	91.1%	Defined
NORTHERN TRUST GLOBAL INVESTMENTS LTD	357,947	$458,171	7.1%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	87,895	$112,505	1.7%	Other

UBS Group AG

$6,267,001

1.02%

4,896,096

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	28,955	$37,062	0.6%	Defined
UBS AG	4,434,569	$5,676,248	90.6%	Defined
UBS Switzerland AG	432,476	$553,569	8.8%	Defined
UBS Securities LLC	96	$122	0.0%	Defined

RENAISSANCE TECHNOLOGIES LLC

$5,861,120

0.96%

4,579,000

SEGALL BRYANT & HAMILL, LLC

$5,741,509

0.94%

4,485,554

TWO SIGMA INVESTMENTS, LP

$5,514,256

0.90%

4,308,013

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$5,484,367

0.90%

4,284,662

TORONTO DOMINION BANK

$5,420,800

0.89%

4,235,000

Point72 Asset Management, L.P.

$5,177,857

0.85%

4,045,201

VANGUARD FIDUCIARY TRUST CO

$5,073,360

0.83%

3,963,563

BANK OF AMERICA CORP /DE/

$4,523,818

0.74%

3,534,234

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	2,645,377	$3,386,082	74.9%	Defined
MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	33,061	$42,318	0.9%	Defined
BOFA SECURITIES, INC.	412,608	$528,138	11.7%	Defined
MANAGED ACCOUNT ADVISORS LLC joint	443,188	$567,280	12.5%	Defined

DEUTSCHE BANK AG\

$4,403,168

0.72%

3,439,976

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	10,017	$12,821	0.3%	Defined
DWS Investments UK Ltd	3,429,959	$4,390,347	99.7%	Defined

Qube Research & Technologies Ltd

$4,302,827

0.70%

3,361,584

PANAGORA ASSET MANAGEMENT INC

$3,762,520

0.61%

2,939,469

ExodusPoint Capital Management, LP

$3,233,465

0.53%

2,526,145

BNP PARIBAS ARBITRAGE, SA

$3,093,044

0.51%

2,416,441

EDMOND DE ROTHSCHILD HOLDING S.A.

$2,982,400

0.49%

2,330,000

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

Manager	Shares	Value (USD)	% of position	Discretion
EDMOND DE ROTHSCHILD ASSET MANAGEMENT (FRANCE)	2,330,000	$2,982,400	100.0%	Sole

NAN FUNG TRINITY (HK) LTD

$2,846,144

0.46%

2,223,550

Bank of New York Mellon Corp

$2,071,352

0.34%

1,618,246

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

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	537,499	$687,998	33.2%	Defined
The Bank of New York Mellon	1,079,894	$1,382,264	66.7%	Defined
BNY Mellon, NA	632	$808	0.0%	Defined
BNY Mellon Advisors, Inc.	219	$280	0.0%	Defined
Held directly	2	$2	0.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,980,465

0.32%

1,547,239

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	1,547,239	$1,980,465	100.0%	Other

Nuveen, LLC

$1,979,488

0.32%

1,546,476

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	43,532	$55,720	2.8%	Defined
TEACHERS ADVISORS, LLC joint	1,502,944	$1,923,768	97.2%	Defined

MOORE CAPITAL MANAGEMENT, LP

$1,525,684

0.25%

1,191,941

Invesco Ltd.

$1,504,264

0.25%

1,175,208

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	86,066	$110,164	7.3%	Defined
Invesco Trust Co joint	222,639	$284,977	18.9%	Defined
Invesco Capital Management LLC	866,503	$1,109,123	73.7%	Defined

Seven Fleet Capital Management LP

$1,353,251

0.22%

1,057,228

World Investment Advisors

$1,323,237

0.22%

1,033,779

Virtus Investment Advisers, LLC

$1,294,337

0.21%

1,011,201

Voleon Capital Management LP

$1,286,384

0.21%

1,004,988

Hennion & Walsh Asset Management, Inc.

$1,281,164

0.21%

1,000,910

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

$1,259,131

0.21%

983,698

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Asset Management Switzerland AG	790,209	$1,011,467	80.3%	Defined
UBS Asset Management (UK) Ltd.	140,207	$179,464	14.3%	Other
Held directly	53,282	$68,200	5.4%	Defined

Swiss National Bank

$1,233,920

0.20%

964,000

CITIGROUP INC

$1,057,556

0.17%

826,216

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	826,216	$1,057,556	100.0%	Defined

RHUMBLINE ADVISERS

$937,043

0.15%

732,065

J. Goldman & Co LP

$911,518

0.15%

712,124

Man Group plc

$891,736

0.15%

696,669

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

Manager	Shares	Value (USD)	% of position	Discretion
Numeric Investors LLC	696,669	$891,736	100.0%	Defined

SummitTX Capital, L.P.

$840,990

0.14%

657,024

ALPS ADVISORS INC

$833,381

0.14%

651,079

Exome Asset Management LLC

$798,778

0.13%

624,046

FRANKLIN RESOURCES INC

$792,180

0.13%

618,891

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

Manager	Shares	Value (USD)	% of position	Discretion
FRANKLIN ADVISERS INC	618,891	$792,180	100.0%	Defined

Rafferty Asset Management, LLC

$776,243

0.13%

606,440

Arax Advisory Partners

$774,781

0.13%

605,298

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$760,704

0.12%

594,300

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	594,300	$760,704	100.0%	Other

GSA CAPITAL PARTNERS LLP

$752,851

0.12%

588,165

AMERIPRISE FINANCIAL INC

$740,250

0.12%

578,321

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

Manager	Shares	Value (USD)	% of position	Discretion
Columbia Management Investment Advisers, LLC	578,311	$740,238	100.0%	Defined
Ameriprise Financial Services, LLC	10	$12	0.0%	Defined

Lion Point Capital, LP

$739,840

0.12%

578,000

ALLIANCEBERNSTEIN L.P.

$731,930

0.12%

571,821

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

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	571,821	$731,930	100.0%	Defined

WELLS FARGO & COMPANY/MN

$714,879

0.12%

558,500

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	510,406	$653,319	91.4%	Defined
WELLS FARGO CLEARING SERVICES, LLC	48,094	$61,560	8.6%	Defined

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

$693,930

0.11%

542,133

Squarepoint Ops LLC

$684,110

0.11%

534,461

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

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	534,461	$684,110	100.0%	Defined

Inspire Investing, LLC

$673,232

0.11%

525,963

Quadrature Capital Ltd

$670,801

0.11%

524,064

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

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	524,064	$670,801	100.0%	Other

Nvest Financial, LLC

$661,952

0.11%

517,150

ADAR1 Capital Management, LLC

$647,445

0.11%

505,817

Private Advisor Group, LLC

$643,683

0.11%

502,878

Verdad Advisers, LP

$632,577

0.10%

494,201

XTX Topco Ltd

$593,788

0.10%

463,897

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	463,897	$593,788	100.0%	Defined

PRICE T ROWE ASSOCIATES INC /MD/

$588,267

0.10%

459,584

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	459,584	$588,267	100.0%	Defined

CITADEL ADVISORS LLC

$549,760

0.09%

429,500

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

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	429,500	$549,760	100.0%	Defined

SG Americas Securities, LLC

$487,827

0.08%

381,115

RAYMOND JAMES FINANCIAL INC

$436,016

0.07%

340,638

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

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	327,126	$418,721	96.0%	Defined
Raymond James Financial Services Advisors, Inc.	13,512	$17,295	4.0%	Defined

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$419,953

0.07%

328,089

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

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	257,642	$329,781	78.5%	Defined
Global X Management (AUS) Ltd joint	70,447	$90,172	21.5%	Defined

MetLife Investment Management, LLC

$419,818

0.07%

327,983

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

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	327,983	$419,818	100.0%	Defined

VANGUARD ASSET MANAGEMENT, Ltd

$400,789

0.07%

313,117

Legal & General Group Plc

$396,218

0.06%

309,547

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

Manager	Shares	Value (USD)	% of position	Discretion
Legal & General Investment Management America Inc	54,246	$69,434	17.5%	Defined
Legal & General Investment Management Ltd joint	255,301	$326,784	82.5%	Defined

PROFUND ADVISORS LLC

$392,430

0.06%

306,586

JPMORGAN CHASE & CO

$370,590

0.06%

289,524

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.	231,959	$296,907	80.1%	Defined
J.P. Morgan Investment Management Inc.	6,954	$8,901	2.4%	Defined
J.P. Morgan Securities plc	50,611	$64,782	17.5%	Defined

MOODY NATIONAL BANK TRUST DIVISION

$365,560

0.06%

297,204

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

Manager	Shares	Value (USD)	% of position	Discretion
MOODY BANCSHARES INC joint	297,204	$365,560	100.0%	Defined

MML INVESTORS SERVICES, LLC

$317,319

0.05%

247,906

Jupiter Topco LLC

$306,376

0.05%

239,357

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

Manager	Shares	Value (USD)	% of position	Discretion
JANUS HENDERSON INVESTORS UK Ltd	239,357	$306,376	100.0%	Defined

Mitsubishi UFJ Trust & Banking Corp

$288,757

0.05%

225,592

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

Manager	Shares	Value (USD)	% of position	Discretion
First Sentier Investors RQI Pty Ltd	225,592	$288,757	100.0%	Defined

Vanguard Global Advisers, LLC

$281,386

0.05%

219,833

Diversified Trust Co

$279,718

0.05%

218,530

ALLSTATE CORP

$269,036

0.04%

210,185

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

Manager	Shares	Value (USD)	% of position	Discretion
ALLSTATE INVESTMENTS LLC	210,185	$269,036	100.0%	Sole

STATE OF WISCONSIN INVESTMENT BOARD

$268,279

0.04%

209,593

Mason & Associates Inc

$256,399

0.04%

200,312

Verition Fund Management LLC

$256,000

0.04%

200,000

Cresset Asset Management, LLC

$255,624

0.04%

199,707

JANE STREET GROUP, LLC

$246,912

0.04%

192,900

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

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	192,900	$246,912	100.0%	Defined

ProShare Advisors LLC

$241,397

0.04%

188,592

LPL Financial LLC

$233,493

0.04%

182,417

Verition Fund Management LLC

$222,321

0.04%

173,689

NEW YORK STATE COMMON RETIREMENT FUND

$219,459

0.04%

171,453

Creative Planning

$212,498

0.03%

166,015

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

Manager	Shares	Value (USD)	% of position	Discretion
CREATIVE PLANNING TRUST Co LLC	4,931	$6,311	3.0%	Defined
Held directly	161,084	$206,187	97.0%	Sole

Key facts CIK 886744 CUSIP 374163103 13F (30d) 6 filings 6 filers Visit website Investor relations