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Armata Pharmaceuticals, Inc.

ARMPNYSE
$3.66+0.14 (+3.98%)as of Oct 5, 2026
Legend
Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.
Company share activityNet buybacksNo changeNet dilution
Marker size reflects transaction size.
  • Insider buy
  • Insider sell
  • Congress buy
  • Congress sell
  • Hedge Funds bought vs sold
Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

  • Insider Buy
  • Insider Sell
  • Congress Buy
  • Congress Sell
  • Hedge funds bought vs sold
  • BuybackNo changeNet dilution

Armata Pharmaceuticals, Inc. price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (+14.4%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
DateCategoryPersonRoleActionAmountChange in holding

Largest institutional holders

13F · Q2 2026
Fund% of company heldValue% of portfolioQuarterly activity
Madison Asset Management, LLC5.67%$13.7M0.16%Reduce 0.02%
BlackRock, Inc.1.51%$3.63M0.00%Not reported
Vanguard Capital Management LLC1.31%$3.16M0.00%Not reported
Millennium Management LLC1.27%$3.05M0.00%Not reported
Geode Capital Management, LLC0.73%$1.75M0.00%Not reported
Dauntless Investment Group, LLC0.55%$1.32M1.04%Add 125.09%
State Street Corp0.35%$840K0.00%Not reported
Northern Trust Corp0.24%$582K0.00%Not reported
Vanguard Portfolio Management LLC0.22%$527K0.00%Not reported
Edgewood Management LLC0.22%$518K0.01%Reduce 20.00%
Vanguard Fiduciary Trust Co0.21%$515K0.00%Not reported
Grey Ledge Advisors, LLC0.13%$324K0.07%Add 66.67%
Renaissance Technologies LLC0.13%$313K0.00%Not reported
Bridgeway Capital Management, LLC0.12%$290K0.01%Not reported
SeaCrest Wealth Management, LLC0.11%$269K0.03%Not reported
Bank of New York Mellon Corp0.08%$193K0.00%Not reported
Charles Schwab Investment Management Inc0.08%$187K0.00%Not reported
Hudson Bay Capital Management LP0.05%$114K0.00%Not reported
Nuveen, LLC0.04%$103K0.00%Not reported
New York State Common Retirement Fund0.04%$99.8K0.00%Not reported
UBS Group AG0.04%$88.8K0.00%Not reported
Captrust Financial Advisors0.04%$85.1K0.00%Not reported
Deutsche Bank Ag\0.03%$77.5K0.00%Not reported
Bank of America Corp0.03%$73.3K0.00%Not reported
XTX Topco Ltd0.03%$70.2K0.00%Not reported
Wells Fargo & Company0.03%$70.1K0.00%Not reported
Rhumbline Advisers0.02%$54.8K0.00%Not reported
Police & Firemen's Retirement System of New Jersey0.02%$39.5K0.00%Not reported
Citigroup Inc0.02%$36.3K0.00%Not reported
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.0.01%$35.4K0.00%Not reported
JPMorgan Chase & Co0.01%$31.8K0.00%Not reported
Morgan Stanley0.01%$29.7K0.00%Not reported
Vanguard Global Advisers, LLC0.01%$25.7K0.00%Not reported
BNP Paribas Financial Markets0.01%$19.7K0.00%Not reported
Barclays PLC0.01%$19.3K0.00%Not reported
STRS Ohio0.01%$14.9K0.00%Not reported
Tower Research Capital LLC (TRC)0.01%$13.2K0.00%Not reported
Cornerstone National Bank & Trust Co0.00%$8.4K0.00%Not reported
Legal & General Group Plc0.00%$7.52K0.00%Not reported
Ameritas Investment Partners, Inc.0.00%$6.97K0.00%Not reported
Measured Wealth Private Client Group, LLC0.00%$6.48K0.00%Not reported
Russell Investments Group, Ltd.0.00%$6.28K0.00%Not reported
Simplex Trading, LLC0.00%$5.15K0.00%Not reported
Northwestern Mutual Wealth Management Co0.00%$3.7K0.00%Not reported
Royal Bank of Canada0.00%$3K0.00%Not reported
FMR LLC0.00%$2.36K0.00%Not reported
Silver Grove Financial Group, Inc.0.00%$1.3K0.00%Not reported
Salem Investment Counselors Inc0.00%$6480.00%Not reported
Whittier Trust Co0.00%$5440.00%Not reported
Geneos Wealth Management Inc.0.00%$5960.00%Not reported
50 of 52 holders

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