ARMP Institutional Ownership & Shareholders
ARMATA PHARMACEUTICALS INC (ARMP) is currently held by 57 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $32.25M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Madison Asset Management, Llc is currently the largest disclosed institutional shareholder of ARMP tracked by InsiderSet, reporting ownership valued at approximately $13.65M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $6.91M, representing an estimated loss of -49.38% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 90% of the total disclosed ARMP value among the investors covered in this analysis. Major shareholders include Madison Asset Management, Llc, Blackrock, Inc., Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in ARMATA PHARMACEUTICALS INC (ARMP).
This page ranks the largest institutional ARMP shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
57
Total Reported Value
$32.25M
Largest Holder
Madison Asset Management, Llc
Largest Position
$13.65M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
72
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Madison Asset Management, Llc | 0.16% | 2,107,175 | $13,654,494 | $6,911,534 | -$6,742,960 | -49.38% | |
| Blackrock, Inc. | 0.00% | 559,986 | $3,628,710 | $1,836,754 | -$1,791,956 | -49.38% | |
| Vanguard Capital Management Llc | 0.00% | 487,968 | $3,162,033 | $1,600,535 | -$1,561,498 | -49.38% | |
| Millennium Management Llc | 0.00% | 470,500 | $3,048,840 | $1,543,240 | -$1,505,600 | -49.38% | |
| Geode Capital Management, Llc | 0.00% | 270,550 | $1,753,791 | $887,404 | -$866,387 | -49.40% | |
| Dauntless Investment Group, Llc | 2.29% | 203,891 | $1,321,214 | $668,762 | -$652,452 | -49.38% | |
| State Street Corp | 0.00% | 129,600 | $839,808 | $425,088 | -$414,720 | -49.38% | |
| Northern Trust Corp | 0.00% | 89,791 | $581,845 | $294,514 | -$287,331 | -49.38% | |
| Vanguard Portfolio Management Llc | 0.00% | 81,354 | $527,174 | $266,841 | -$260,333 | -49.38% | |
| Edgewood Management Llc | 0.01% | 80,000 | $518,400 | $262,400 | -$256,000 | -49.38% | |
| Vanguard Fiduciary Trust Co | 0.00% | 79,495 | $515,128 | $260,744 | -$254,384 | -49.38% | |
| Grey Ledge Advisors, Llc | 0.07% | 50,000 | $324,000 | $164,000 | -$160,000 | -49.38% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 48,318 | $313,101 | $158,483 | -$154,618 | -49.38% |
| Bridgeway Capital Management, Llc | 0.01% | 44,682 | $289,539 | $146,557 | -$142,982 | -49.38% | |
| Bank Of New York Mellon Corp | 0.00% | 29,749 | $192,774 | $97,577 | -$95,197 | -49.38% | |
| Charles Schwab Investment Management Inc | 0.00% | 28,857 | $186,993 | $94,651 | -$92,342 | -49.38% | |
| Seacrest Wealth Management, Llc | 0.02% | 41,899 | $153,769 | $137,429 | -$16,340 | -10.63% | |
| Hudson Bay Capital Management Lp | 0.00% | 17,584 | $113,944 | $57,676 | -$56,268 | -49.38% | |
| Nuveen, Llc | 0.00% | 15,905 | $103,064 | $52,168 | -$50,896 | -49.38% | |
| New York State Common Retirement Fund | 0.00% | 15,400 | $99,792 | $50,512 | -$49,280 | -49.38% | |
| Ubs Group Ag | 0.00% | 13,697 | $88,757 | $44,926 | -$43,831 | -49.38% | |
| Captrust Financial Advisors | 0.00% | 13,140 | $85,147 | $43,099 | -$42,048 | -49.38% | |
| Deutsche Bank Ag\ | 0.00% | 11,966 | $77,540 | $39,248 | -$38,292 | -49.38% | |
| Bank Of America Corp | 0.00% | 11,305 | $73,256 | $37,080 | -$36,176 | -49.38% | |
| Xtx Topco Ltd | 0.00% | 10,826 | $70,152 | $35,509 | -$34,643 | -49.38% | |
| Wells Fargo & Company/Mn | 0.00% | 10,819 | $70,104 | $35,486 | -$34,618 | -49.38% | |
| Rhumbline Advisers | 0.00% | 8,453 | $54,770 | $27,726 | -$27,044 | -49.38% | |
| Nisa Investment Advisors, Llc | 0.00% | 13,650 | $50,096 | $44,772 | -$5,324 | -10.63% | |
| Police & Firemen'S Retirement System Of New Jersey | 0.00% | 6,095 | $39,496 | $19,992 | -$19,504 | -49.38% | |
| Citigroup Inc | 0.00% | 5,603 | $36,307 | $18,378 | -$17,929 | -49.38% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.00% | 5,461 | $35,387 | $17,912 | -$17,475 | -49.38% | |
| Jpmorgan Chase & Co | 0.00% | 4,916 | $31,757 | $16,124 | -$15,633 | -49.23% | |
| Morgan Stanley | 0.00% | 4,583 | $29,697 | $15,032 | -$14,665 | -49.38% | |
| Vanguard Global Advisers, Llc | 0.00% | 3,964 | $25,687 | $13,002 | -$12,685 | -49.38% | |
| Bnp Paribas Financial Markets | 0.00% | 3,038 | $19,686 | $9,965 | -$9,721 | -49.38% | |
| Barclays Plc | 0.00% | 2,984 | $19,337 | $9,788 | -$9,549 | -49.38% | |
| Tower Research Capital Llc (Trc) | 0.00% | 2,034 | $13,180 | $6,672 | -$6,508 | -49.38% | |
| Legal & General Group Plc | 0.00% | 1,161 | $7,523 | $3,808 | -$3,715 | -49.38% | |
| Ameritas Investment Partners, Inc. | 0.00% | 1,076 | $6,972 | $3,529 | -$3,443 | -49.38% | |
| Measured Wealth Private Client Group, Llc | 0.00% | 1,000 | $6,480 | $3,280 | -$3,200 | -49.38% | |
| Russell Investments Group, Ltd. | 0.00% | 969 | $6,279 | $3,178 | -$3,101 | -49.38% | |
| Simplex Trading, Llc | 0.00% | 794 | $5,145 | $2,604 | -$2,541 | -49.38% | |
| Cornerstone National Bank & Trust Co | 0.00% | 1,428 | $4,727 | $4,684 | -$43 | -0.91% | |
| Royal Bank Of Canada | 0.00% | 497 | $3,000 | $1,630 | -$1,370 | -45.66% | |
| Trifecta Capital Advisors, Llc | 0.00% | 714 | $2,621 | $2,342 | -$279 | -10.65% | |
| Fmr Llc | 0.00% | 364 | $2,360 | $1,194 | -$1,166 | -49.41% | |
| Farther Finance Advisors, Llc | 0.00% | 597 | $2,191 | $1,958 | -$233 | -10.63% | |
| Gamma Investing Llc | 0.00% | 550 | $2,019 | $1,804 | -$215 | -10.65% | |
| Sterling Capital Management Llc | 0.00% | 389 | $1,428 | $1,276 | -$152 | -10.65% | |
| Silver Grove Financial Group, Inc. | 0.00% | 200 | $1,296 | $656 | -$640 | -49.38% |
Frequently asked questions about ARMP
Who are the largest institutional holders of ARMP?
The largest institutional holders of ARMP reported in the latest SEC Form 13F filings include Madison Asset Management, Llc, Blackrock, Inc., Vanguard Capital Management Llc, Millennium Management Llc, and Geode Capital Management, Llc. InsiderSet ranks institutional holders by their latest reported ARMP position.
What is ARMP institutional ownership?
This page tracks ARMP positions reported by institutional investment managers through SEC Form 13F. ARMATA PHARMACEUTICALS INC (ARMP) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own ARMP?
InsiderSet currently tracks 57 institutional managers reporting ARMP holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of ARMP shareholders.
How much ARMP stock do institutions own?
Institutional investment managers disclosed approximately $32.25M in ARMP holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was ARMP institutional ownership last updated?
The latest ARMP institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional ARMP holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its ARMP position after the reporting date.
Are institutions buying or selling ARMP?
Institutional buying and selling can be analyzed by comparing ARMP positions across consecutive 13F reporting periods. InsiderSet's ARMP Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ARMP ownership changes.
How has ARMP institutional ownership changed over time?
InsiderSet tracks ARMP institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.