Geron Corp: which funds bought and sold

Institutions that bought and sold Geron shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 129 institutions that filed 13F reports for both quarters added to or opened positions in Geron, and 92 cut or closed them. Together they sold a net 6.3M shares, −1.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 36.2M shares (−13.5%); index fund managers were net buyers of 14.7M shares (+10.7%). 34 opened a new position and 30 sold out entirely.

Bought, Q2 2026 129 institutions, 34 of them new holders Sold, Q2 2026 92 institutions, 30 of them sold out

Net change, all compared −6.3M shares (−1.3%)

Net change, active managers −36.2M shares (−13.5%), 27 bought, 14 sold

Buyers versus sellers

institutions compared, 284

129 bought 63 92 sold

Active managers and hedge funds 27 bought · 14 sold · −36.2M

Index fund managers 10 bought · 2 sold · +14.7M

Other institutions 92 bought · 76 sold · +15.1M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Nantahala Capital Management, LLC Hedge fund	+13.2M +117.8%	24.4M	$31.3M
Citadel Advisors LLC Hedge fund	+7.5M +34.6%	29.0M	$37.2M
Vanguard Portfolio Management LLC Index funds	+6.1M +131.6%	10.8M	$13.8M
Goldman Sachs Group Inc	+5.5M +48.8%	16.6M	$21.3M
State Street Corp Index funds	+5.4M +17.6%	35.9M	$45.9M
Toronto Dominion Bank	+4.1M +3216.1%	4.2M	$5.4M
Renaissance Technologies LLC Hedge fund	+2.8M +154.5%	4.6M	$5.9M
Panagora Asset Management Inc Active manager	+2.6M +714.6%	2.9M	$3.8M
Exoduspoint Capital Management, LP Hedge fund	+2.5M +20974.0%	2.5M	$3.2M
Two Sigma Investments, LP Hedge fund	+2.4M +128.0%	4.3M	$5.5M
BNP Paribas Financial Markets	+2.0M +466.3%	2.4M	$3.1M
Qube Research & Technologies Ltd Hedge fund	+1.9M +132.5%	3.4M	$4.3M
Blackrock, Inc. Index funds	+1.8M +3.8%	49.1M	$62.9M
Candriam S.C.A.	+1.7M +42.5%	5.6M	$7.1M
Soleus Capital Management, L.P. Hedge fund	+1.3M +3.1%	42.8M	$54.8M
UBS Group AG	+1.2M +32.6%	4.9M	$6.3M
Moore Capital Management, LP Hedge fund	+1.2M New position	1.2M	$1.5M
Geode Capital Management, LLC Index funds	+885K +6.5%	14.6M	$18.6M
Voleon Capital Management LP Hedge fund	+882K +719.6%	1.0M	$1.3M
Nan Fung Trinity (HK) Ltd	+850K +61.9%	2.2M	$2.8M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Nantahala Capital Management, LLC Hedge fund	+13.2M +117.8%	24.4M	$31.3M
Citadel Advisors LLC Hedge fund	+7.5M +34.6%	29.0M	$37.2M
Renaissance Technologies LLC Hedge fund	+2.8M +154.5%	4.6M	$5.9M
Panagora Asset Management Inc Active manager	+2.6M +714.6%	2.9M	$3.8M
Exoduspoint Capital Management, LP Hedge fund	+2.5M +20974.0%	2.5M	$3.2M
Two Sigma Investments, LP Hedge fund	+2.4M +128.0%	4.3M	$5.5M
Qube Research & Technologies Ltd Hedge fund	+1.9M +132.5%	3.4M	$4.3M
Soleus Capital Management, L.P. Hedge fund	+1.3M +3.1%	42.8M	$54.8M
Moore Capital Management, LP Hedge fund	+1.2M New position	1.2M	$1.5M
Voleon Capital Management LP Hedge fund	+882K +719.6%	1.0M	$1.3M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Deep Track Capital, LP Hedge fund	−31.7M Sold out	0	—
RA Capital Management, L.P. Hedge fund	−21.0M −32.9%	42.8M	$54.8M
Point72 Asset Management, L.P. Hedge fund	−16.4M −80.2%	4.0M	$5.2M
Marshall Wace, LLP Hedge fund	−3.0M Sold out	0	—
Vestal Point Capital, LP Hedge fund	−2.5M Sold out	0	—
Deutsche Bank Ag\	−1.8M −33.9%	3.4M	$4.4M
Nuveen, LLC	−1.4M −47.2%	1.5M	$2M
HRT Financial LP	−1.2M Sold out	0	—
FMR LLC Active manager	−1.1M −16.6%	5.5M	$7M
Bank Of America Corp	−1.0M −22.4%	3.5M	$4.5M
Jane Street Group, LLC	−772K Sold out	0	—
Xtx Topco Ltd	−497K −51.7%	464K	$593,788
UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC	−287K −22.6%	984K	$1.3M
Rafferty Asset Management, LLC Index funds	−277K −31.4%	606K	$776,243
Aquatic Capital Management LLC	−256K Sold out	0	—
Segall Bryant & Hamill, LLC Active manager	−254K −5.4%	4.5M	$5.7M
Charles Schwab Investment Management Inc Index funds	−199K −4.4%	4.3M	$5.5M
California State Teachers Retirement System	−195K −26.5%	542K	$693,930
Scientech Research LLC	−134K Sold out	0	—
Invesco Ltd.	−129K −9.9%	1.2M	$1.5M

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Deep Track Capital, LP Hedge fund	−31.7M Sold out	0	—
RA Capital Management, L.P. Hedge fund	−21.0M −32.9%	42.8M	$54.8M
Point72 Asset Management, L.P. Hedge fund	−16.4M −80.2%	4.0M	$5.2M
Marshall Wace, LLP Hedge fund	−3.0M Sold out	0	—
Vestal Point Capital, LP Hedge fund	−2.5M Sold out	0	—
FMR LLC Active manager	−1.1M −16.6%	5.5M	$7M
Segall Bryant & Hamill, LLC Active manager	−254K −5.4%	4.5M	$5.7M
Eversept Partners, LP Hedge fund	−117K −0.6%	18.7M	$24M
Hudson Bay Capital Management LP Hedge fund	−61K Sold out	0	—
Farallon Capital Management, L.L.C. Hedge fund	−29K −66.5%	14K	$18,432

New positions

largest by value

Institution	Shares	Value June 30, 2026
Moore Capital Management, LPHedge fund	1.2M	$1.5M
Summittx Capital, L.P.	657K	$840,991
Exome Asset Management LLC	624K	$798,779
Squarepoint Ops LLCHedge fund	534K	$684,110
Verdad Advisers, LP	494K	$632,577
Mml Investors Services, LLC	248K	$317,320
Mitsubishi Ufj Trust & Banking Corp	226K	$288,758
Diversified Trust Co	219K	$279,718
Allstate Corp	210K	$269,037
Verition Fund Management LLCHedge fund	174K	$222,322

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Deep Track Capital, LPHedge fund	31.7M	$47.3M
Marshall Wace, LLPHedge fund	3.0M	$4.4M
Vestal Point Capital, LPHedge fund	2.5M	$3.8M
HRT Financial LP	1.2M	$1.8M
Jane Street Group, LLC	772K	$1.2M
Aquatic Capital Management LLC	256K	$381,331
Scientech Research LLC	134K	$199,431
Hudson Bay Capital Management LPHedge fund	61K	$90,592
DNB Asset Management As	52K	$78,040
Y-Intercept (Hong Kong) Ltd	36K	$53,436

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 257
Ten largest holders: 62.7%
Index fund managers: 31.2%
Active managers and hedge funds: 47.5%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	27	14	7	4	−36.2M	−13.5%
Index fund managers	10	2	0	0	+14.7M	+10.7%
Other institutions	92	76	27	26	+15.1M	+17.0%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Geron.

Only managers that filed a holdings report for both quarters are compared (284 here). 6 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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