NRX Pharmaceuticals, Inc.: which funds bought and sold

Institutions that bought and sold NRX Pharmaceuticals 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, 36 institutions that filed 13F reports for both quarters added to or opened positions in NRX Pharmaceuticals, and 9 cut or closed them. Together they added a net 5.4M shares, +87.0% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 1.9M shares (+9569.5%); index fund managers were net buyers of 646K shares (+34.5%). 19 opened a new position and 5 sold out entirely.

Bought, Q2 2026 36 institutions, 19 of them new holders Sold, Q2 2026 9 institutions, 5 of them sold out

Net change, all compared +5.4M shares (+87.0%)

Net change, active managers +1.9M shares (+9569.5%), 9 bought, 1 sold

Buyers versus sellers

institutions compared, 51

36 bought 6 9 sold

Active managers and hedge funds 9 bought · 1 sold · +1.9M

Index fund managers 6 bought · 0 sold · +646K

Other institutions 21 bought · 8 sold · +2.9M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
B Group, Inc.	+1.1M +36.4%	4.1M	$16.7M
Ameriprise Financial Inc	+929K New position	929K	$3.8M
Balyasny Asset Management L.P. Hedge fund	+894K New position	894K	$3.7M
Citadel Advisors LLC Hedge fund	+680K New position	680K	$2.8M
Vanguard Capital Management LLC Index funds	+458K +39.5%	1.6M	$6.6M
UBS Group AG	+398K +1577.2%	423K	$1.7M
Advisorshares Investments LLC	+239K +56.7%	659K	$2.7M
Marshall Wace, LLP Hedge fund	+195K New position	195K	$795,831
Blackrock, Inc. Index funds	+121K +122.7%	220K	$901,681
HRT Financial LP	+101K New position	101K	$411,000
Jane Street Group, LLC	+75K +169.6%	119K	$486,784
Commonwealth Equity Services, LLC	+57K +14.3%	454K	$1.9M
Quadrature Capital Ltd Hedge fund	+44K New position	44K	$178,344
Renaissance Technologies LLC Hedge fund	+39K New position	39K	$157,874
Morgan Stanley	+31K +307.9%	41K	$167,285
State Street Corp Index funds	+29K +33.5%	116K	$474,784
Two Sigma Investments, LP Hedge fund	+26K New position	26K	$108,095
Truist Financial Corp	+20K New position	20K	$81,800
Northern Trust Corp Index funds	+19K +44.8%	63K	$257,470
Exoduspoint Capital Management, LP Hedge fund	+19K New position	19K	$78,970

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Balyasny Asset Management L.P. Hedge fund	+894K New position	894K	$3.7M
Citadel Advisors LLC Hedge fund	+680K New position	680K	$2.8M
Marshall Wace, LLP Hedge fund	+195K New position	195K	$795,831
Quadrature Capital Ltd Hedge fund	+44K New position	44K	$178,344
Renaissance Technologies LLC Hedge fund	+39K New position	39K	$157,874
Two Sigma Investments, LP Hedge fund	+26K New position	26K	$108,095
Exoduspoint Capital Management, LP Hedge fund	+19K New position	19K	$78,970
Squarepoint Ops LLC Hedge fund	+13K New position	13K	$53,849
Millennium Management LLC Hedge fund	+12K New position	12K	$50,327

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Xtx Topco Ltd	−60K −76.4%	19K	$75,849
Headlands Technologies LLC	−39K Sold out	0	—
Axq Capital, LP	−33K Sold out	0	—
Schonfeld Strategic Advisors LLC Hedge fund	−20K Sold out	0	—
Virtu Financial LLC	−15K −47.7%	17K	$68,000
Summit Securities Group LLC	−1,135 Sold out	0	—
Group One Trading LLC	−737 Sold out	0	—
Royal Bank Of Canada	−509 −20.3%	2,000	$8,000
Wells Fargo & Company	−350 −14.9%	2,000	$8,180

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Schonfeld Strategic Advisors LLC Hedge fund	−20K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Ameriprise Financial Inc	929K	$3.8M
Balyasny Asset Management L.P.Hedge fund	894K	$3.7M
Citadel Advisors LLCHedge fund	680K	$2.8M
Marshall Wace, LLPHedge fund	195K	$795,831
HRT Financial LP	101K	$411,000
Quadrature Capital LtdHedge fund	44K	$178,344
Renaissance Technologies LLCHedge fund	39K	$157,874
Two Sigma Investments, LPHedge fund	26K	$108,095
Truist Financial Corp	20K	$81,800
Exoduspoint Capital Management, LPHedge fund	19K	$78,970

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Headlands Technologies LLC	39K	$83,909
Axq Capital, LP	33K	$70,739
Schonfeld Strategic Advisors LLCHedge fund	20K	$42,335
Summit Securities Group LLC	1,135	$2,418
Group One Trading LLC	737	$1,570

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 47
Ten largest holders: 88.4%
Index fund managers: 21.6%
Active managers and hedge funds: 16.5%

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	9	1	9	1	+1.9M	+9569.5%
Index fund managers	6	0	0	0	+646K	+34.5%
Other institutions	21	8	10	4	+2.9M	+66.1%

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 NRX Pharmaceuticals.

Only managers that filed a holdings report for both quarters are compared (51 here). 1 other holder is 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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