Vault-13

NRX PHARMACEUTICALS INC NRXP

COM NEW · Common Stock · CUSIP 629444209

47 institutional holders +14 vs Q1 2026
11,638,88611.6m shares reported held*
26.9% of all shares outstanding*
$47.6mreported value*
18 new 17 added 4 reduced 5 sold out net bought ≈ $22.0m (+5.4m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 43.3m as of 2026-08-14, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $4.09. Options: 5 managers hold calls ($3.6m notional), 3 hold puts ($388.5k).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0204060Q2 24: 20Q3 24: 19Q4 24: 26Q1 25: 23Q2 25: 26Q3 25: 24Q4 25: 28Q1 26: 33Q2 26: 4747Q2 24Q4 24Q2 25Q4 25Q2 26
Numbers
QuarterHolders
Q2 202420
Q3 202419
Q4 202426
Q1 202523
Q2 202526
Q3 202524
Q4 202528
Q1 202633
Q2 202647

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q3 24: 7 bought or addedQ3 24: 7 cut or sold outQ4 24: 14 bought or addedQ4 24: 6 cut or sold outQ4 24Q1 25: 10 bought or addedQ1 25: 12 cut or sold outQ2 25: 15 bought or addedQ2 25: 6 cut or sold outQ2 25Q3 25: 17 bought or addedQ3 25: 8 cut or sold outQ4 25: 13 bought or addedQ4 25: 13 cut or sold outQ4 25Q1 26: 22 bought or addedQ1 26: 5 cut or sold outQ2 26: 35 bought or addedQ2 26: 9 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 202477
Q4 2024146
Q1 20251012
Q2 2025156
Q3 2025178
Q4 20251313
Q1 2026225
Q2 2026359

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$1m$2m$3m$4mQ3 25 calls: $582.0kQ3 25 puts: $2.3kQ3 25P/C 0.00Q4 25 calls: $580.8kQ4 25 puts: $271Q4 25P/C 0.00Q1 26 calls: $469.9kQ1 26 puts: $284.6kQ1 26P/C 0.61Q2 26 calls: $3.6mQ2 26 puts: $388.5kQ2 26P/C 0.11
Numbers
QuarterCallsPutsP/C
Q3 2025$582.0k$2.3k0.00
Q4 2025$580.8k$2710.00
Q1 2026$469.9k$284.6k0.61
Q2 2026$3.6m$388.5k0.11

Biggest buyers

B Group, Inc. Added +1,091,767+1.1m
AMERIPRISE FINANCIAL INC New +928,728+928.7k
Balyasny Asset Management L.P. New +893,864+893.9k
CITADEL ADVISORS LLC New +680,043+680.0k
VANGUARD CAPITAL MANAGEMENT LLC Added +457,975+458.0k
UBS Group AG Added +397,888+397.9k
AdvisorShares Investments LLC Added +238,551+238.6k
MARSHALL WACE, LLP New +194,580+194.6k
BlackRock, Inc. Added +121,465+121.5k
HRT FINANCIAL LP New +100,724+100.7k

Biggest sellers

XTX Topco Ltd Reduced -60,188-60.2k
Headlands Technologies LLC Sold out -39,394-39.4k
AXQ CAPITAL, LP Sold out -33,211-33.2k
Schonfeld Strategic Advisors LLC Sold out -19,876-19.9k
Virtu Financial LLC Reduced -15,171-15.2k
SUMMIT SECURITIES GROUP LLC Sold out -1,135-1.1k
GROUP ONE TRADING LLC Sold out -737-737
ROYAL BANK OF CANADA Reduced -509-509
WELLS FARGO & COMPANY/MN Reduced -350-350

Biggest calls

SIMPLEX TRADING, LLC Added $1.3m317.8k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $927.6k226.8k shares
CITADEL ADVISORS LLC Added $917.0k224.2k shares
GROUP ONE TRADING LLC Added $356.6k87.2k shares
JANE STREET GROUP, LLC Reduced $76.1k18.6k shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $215.5k52.7k shares
CITADEL ADVISORS LLC New $109.2k26.7k shares
SIMPLEX TRADING, LLC Added $63.8k15.6k shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
B Group, Inc. 13G · passive investor new · filed 2025-08-21 12.6% new 3.0m≈ $12.3m 2025-08-21

Fell to 5% or below in the last year: Anson Funds Management LP (4.9%, 2026-05-15)

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q4 24: 1 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20241$46.8k0——
Q1 20250—0——
Q2 20250—0——
Q3 20250—0——
Q4 20250—0——
Q1 20260—0——
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 B Group, Inc. 9.50% of their portfolio DALLAS, TX 4,091,7674.1m $16.7m $16.7m 9.50% Added +1.1m +1,091,767
2 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 1,618,1591.6m $6.6m $6.6m 0.00% Added +458.0k +457,975
3 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 928,728928.7k $3.8m $3.8m 0.00% New
4 Balyasny Asset Management L.P. 0.01% of their portfolio Chicago, IL 893,864893.9k $3.7m $3.7m 0.01% New
5 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 680,043680.0k $2.8m $2.8m 0.00% New
6 AdvisorShares Investments LLC 0.33% of their portfolio BETHESDA, MD 659,018659.0k $2.7m $2.7m 0.33% Added +238.6k +238,551
7 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 454,418454.4k $1.9m $1.9m 0.00% Added +57.0k +56,987
8 UBS Group AG 0.00% of their portfolio ZURICH, V8 423,115423.1k $1.7m $1.7m 0.00% Added +397.9k +397,888
9 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 314,659314.7k $1.3m $1.3m 0.00% Added +4.5k +4,547
10 BlackRock, Inc. 0.00% of their portfolio New York, NY 220,460220.5k $901.7k $901.7k 0.00% Added +121.5k +121,465
11 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 194,580194.6k $795.8k $795.8k 0.00% New
12 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 182,718182.7k $747.3k $747.3k 0.00% Added +13.1k +13,138
13 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 119,018119.0k $486.8k $486.8k 0.00% Added +74.9k +74,866
14 Bleakley Financial Group, LLC 0.01% of their portfolio PARSIPPANY, NJ 117,216117.2k $479.4k $479.4k 0.01% Added +12 +12
15 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 116,084116.1k $474.8k $474.8k 0.00% Added +29.1k +29,100
16 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 100,724100.7k $411.0k $411.0k 0.00% New
17 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 62,95163.0k $257.5k $257.5k 0.00% Added +19.5k +19,482
18 Chicago Partners Investment Group LLC 0.00% of their portfolio CHICAGO, IL 46,38846.4k $190.7k $190.7k 0.00% Added +11.9k +11,909
19 Quadrature Capital Ltd 0.00% of their portfolio LONDON, X0 43,60543.6k $178.3k $178.3k 0.00% New
20 One Wealth Management Investment & Advisory Services, LLC 0.19% of their portfolio BOCA RATON, FL 43,30943.3k $177.1k $177.1k 0.19% Unchanged
21 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 40,90140.9k $167.3k $167.3k 0.00% Added +30.9k +30,873
22 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 38,60038.6k $157.9k $157.9k 0.00% New
23 Global Retirement Partners, LLC 0.00% of their portfolio San Rafael, CA 33,30033.3k $136.2k $136.2k 0.00% First filing
24 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 26,42926.4k $108.1k $108.1k 0.00% New
25 TRUIST FINANCIAL CORP 0.00% of their portfolio CHARLOTTE, NC 20,00020.0k $81.8k $81.8k 0.00% New
26 ExodusPoint Capital Management, LP 0.00% of their portfolio NEW YORK, NY 19,30819.3k $79.0k $79.0k 0.00% New
27 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 18,54518.5k $75.8k $75.8k 0.00% Reduced -60.2k -60,188
28 Virtu Financial LLC 0.00% of their portfolio New York, NY 16,61416.6k $68.0k $68.0k 0.00% Reduced -15.2k -15,171
29 Persistent Asset Partners Ltd 0.02% of their portfolio HONG KONG, K3 16,32616.3k $66.8k $66.8k 0.02% New
30 Ethos Financial Group, LLC 0.00% of their portfolio KING OF PRUSSIA, PA 15,90015.9k $51.4k $51.4k 0.00% Unchanged
31 Cresset Asset Management, LLC 0.00% of their portfolio Chicago, IL 15,00015.0k $61.4k $61.4k 0.00% New
32 SJBENEN ADVISORY, LLC 0.03% of their portfolio CHAPEL HILL, NC 15,00015.0k $57.8k $57.8k 0.03% Unchanged
33 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 13,16613.2k $53.8k $53.8k 0.00% New
34 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 12,30512.3k $50.3k $50.3k 0.00% New
35 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 5,9926.0k $24.5k $24.5k 0.00% New
36 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 5,7735.8k $23.6k $23.6k 0.00% New
37 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 5,1015.1k $20.9k $20.9k 0.00% Added +2.6k +2,601
38 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 3,8843.9k $15.9k $15.9k 0.00% Added +3.8k +3,803
39 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 2,0002.0k $8.2k $8.2k 0.00% Reduced -350 -350
40 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 2,0002.0k $8.0k $8.0k 0.00% Reduced -509 -509
41 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 900900 $3.7k $3.7k 0.00% New
42 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 600600 $2.5k $2.5k 0.00% Added +510 +510
43 Avion Wealth 0.00% of their portfolio THE WOODLANDS, TX 294294 $1.0k $1.0k 0.00% Unchanged
44 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 6767 $274 $274 0.00% New
45 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 3434 $136 $136 0.00% Unchanged
46 Larson Financial Group LLC 0.00% of their portfolio ST LOUIS, MO 2222 $90 $90 0.00% Unchanged
47 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 11 $4 $4 0.00% Unchanged