Pepgen Inc.: which funds bought and sold

Institutions that bought and sold Pepgen 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, 28 institutions that filed 13F reports for both quarters added to or opened positions in Pepgen, and 52 cut or closed them. Together they sold a net 4.4M shares, −7.8% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 372K shares (+0.9%); index fund managers were net sellers of 1,592 shares (−0.0%). 7 opened a new position and 28 sold out entirely.

Bought, Q2 2026 28 institutions, 7 of them new holders Sold, Q2 2026 52 institutions, 28 of them sold out

Net change, all compared −4.4M shares (−7.8%)

Net change, active managers +372K shares (+0.9%), 7 bought, 14 sold

Buyers versus sellers

institutions compared, 98

28 bought 18 52 sold

Active managers and hedge funds 7 bought · 14 sold · +372K

Index fund managers 3 bought · 4 sold · −1,592

Other institutions 18 bought · 34 sold · −4.8M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Renaissance Technologies LLC Hedge fund	+1.5M +2576.5%	1.5M	$2.7M
ADAR1 Capital Management, LLC Hedge fund	+983K +61.2%	2.6M	$4.7M
Gsa Capital Partners LLP	+815K +2127.6%	853K	$1.5M
Marshall Wace, LLP Hedge fund	+568K +190.4%	867K	$1.6M
Citadel Advisors LLC Hedge fund	+450K +216.6%	658K	$1.2M
Squarepoint Ops LLC Hedge fund	+382K +260.9%	529K	$952,349
Rosalind Advisors, Inc.	+350K New position	350K	$630,000
Diadema Partners LP	+222K +147.3%	373K	$671,911
Xtx Topco Ltd	+114K +87.1%	245K	$441,625
Persistent Asset Partners Ltd	+57K +149.0%	95K	$171,005
Bridgeway Capital Management, LLC Active manager	+50K +114.4%	94K	$168,660
Connor, Clark & Lunn Investment Management Ltd.	+43K +62.1%	112K	$201,728
Goldman Sachs Group Inc	+29K +21.2%	168K	$302,598
Blackrock, Inc. Index funds	+26K +2.1%	1.3M	$2.3M
Bronte Capital Management Pty Ltd.	+18K New position	18K	$31,997
Vanguard Personalized Indexing Management, LLC Index funds	+18K New position	18K	$31,732
UBS Group AG	+17K +17.7%	111K	$199,211
Boothbay Fund Management, LLC Hedge fund	+15K +4.2%	366K	$659,054
Aigen Investment Management, LP	+13K New position	13K	$23,179
Verdad Advisers, LP	+13K +23.0%	67K	$120,384

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Renaissance Technologies LLC Hedge fund	+1.5M +2576.5%	1.5M	$2.7M
ADAR1 Capital Management, LLC Hedge fund	+983K +61.2%	2.6M	$4.7M
Marshall Wace, LLP Hedge fund	+568K +190.4%	867K	$1.6M
Citadel Advisors LLC Hedge fund	+450K +216.6%	658K	$1.2M
Squarepoint Ops LLC Hedge fund	+382K +260.9%	529K	$952,349
Bridgeway Capital Management, LLC Active manager	+50K +114.4%	94K	$168,660
Boothbay Fund Management, LLC Hedge fund	+15K +4.2%	366K	$659,054

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Kalehua Capital Management LLC	−1.7M Sold out	0	—
Woodline Partners LP Hedge fund	−1.3M Sold out	0	—
Pictet Asset Management Holding SA	−1.3M Sold out	0	—
Awm Investment Company, Inc.	−1.2M −67.2%	600K	$1.1M
Morgan Stanley	−950K −95.1%	49K	$87,916
Nantahala Capital Management, LLC Hedge fund	−681K Sold out	0	—
Qube Research & Technologies Ltd Hedge fund	−608K −86.0%	99K	$177,446
Susquehanna International Group, LLP	−367K −82.9%	75K	$135,749
Millennium Management LLC Hedge fund	−292K −14.1%	1.8M	$3.2M
Dimensional Fund Advisors LP	−163K −75.0%	54K	$97,319
Luminus Management LLC	−150K Sold out	0	—
Wellington Management Group LLP Active manager	−122K Sold out	0	—
Quadrature Capital Ltd Hedge fund	−118K −74.2%	41K	$73,685
Two Sigma Investments, LP Hedge fund	−115K −63.5%	66K	$119,282
Readystate Asset Management LP	−87K −75.3%	28K	$51,082
Exoduspoint Capital Management, LP Hedge fund	−80K Sold out	0	—
Hudson Bay Capital Management LP Hedge fund	−70K Sold out	0	—
Brevan Howard Capital Management LP Hedge fund	−66K Sold out	0	—
Landscape Capital Management, L.L.C.	−61K Sold out	0	—
BNP Paribas Financial Markets	−61K −95.8%	2,697	$4,855

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Woodline Partners LP Hedge fund	−1.3M Sold out	0	—
Nantahala Capital Management, LLC Hedge fund	−681K Sold out	0	—
Qube Research & Technologies Ltd Hedge fund	−608K −86.0%	99K	$177,446
Millennium Management LLC Hedge fund	−292K −14.1%	1.8M	$3.2M
Wellington Management Group LLP Active manager	−122K Sold out	0	—
Quadrature Capital Ltd Hedge fund	−118K −74.2%	41K	$73,685
Two Sigma Investments, LP Hedge fund	−115K −63.5%	66K	$119,282
Exoduspoint Capital Management, LP Hedge fund	−80K Sold out	0	—
Hudson Bay Capital Management LP Hedge fund	−70K Sold out	0	—
Brevan Howard Capital Management LP Hedge fund	−66K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Rosalind Advisors, Inc.	350K	$630,000
Bronte Capital Management Pty Ltd.	18K	$31,997
Vanguard Personalized Indexing Management, LLCIndex funds	18K	$31,732
Aigen Investment Management, LP	13K	$23,179
Rialto Wealth Management, LLC	318	$573
Integrated Wealth Concepts LLC	60	$108
Caitong International Asset Management Co., Ltd	13	$23

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Kalehua Capital Management LLC	1.7M	$3.1M
Woodline Partners LPHedge fund	1.3M	$2.3M
Pictet Asset Management Holding SA	1.3M	$2.3M
Nantahala Capital Management, LLCHedge fund	681K	$1.2M
Luminus Management LLC	150K	$265,500
Wellington Management Group LLPActive manager	122K	$215,894
Exoduspoint Capital Management, LPHedge fund	80K	$140,858
Hudson Bay Capital Management LPHedge fund	70K	$123,180
Brevan Howard Capital Management LPHedge fund	66K	$117,531
Landscape Capital Management, L.L.C.	61K	$108,099

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 70
Ten largest holders: 81.1%
Index fund managers: 8.4%
Active managers and hedge funds: 76.9%

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	7	14	0	9	+372K	+0.9%
Index fund managers	3	4	1	1	−1,592	−0.0%
Other institutions	18	34	6	18	−4.8M	−38.5%

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 Pepgen.

Only managers that filed a holdings report for both quarters are compared (98 here). 2 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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