| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Commodore Capital LP | 9.9% | $29,281,576 | 1,615,981 | Commodore Capital LP | 08 Aug 2025 | |||
| RA CAPITAL MANAGEMENT, L.P. | 9.5% | $28,392,908 | 1,530,615 | RA Capital Management, L.P. | 11 Aug 2025 | |||
| JANUS HENDERSON GROUP PLC | 8.2% | $44,444,160 | 1,341,508 | JANUS HENDERSON GROUP PLC | 28 Nov 2025 | |||
| Farallon Capital Partners, L.P. | 7.8% | +7.1% | $38,963,707 | +$2,763,919 | 1,227,590 | +7.6% | Dapice Joshua J. | 31 Dec 2025 |
| Schornstein Alexander | 3.5% | -65% | $10,082,352 | -$3,424,144 | 543,523 | -25% | Alexander Schornstein | 11 Aug 2025 |
| ARMISTICE CAPITAL, LLC | 10% | $5,252,553 | 289,876 | Armistice Capital, LLC | 30 Jun 2025 |
As of 31 Dec 2025, 36 institutional investors reported holding 6,388,221 shares of ASSEMBLY BIOSCIENCES, INC. - Common Stock, par value $0.001 per shares (the "Shares") (ASMB). This represents 41% of the company’s total 15,738,333 outstanding shares.
The largest institutional shareholders of ASSEMBLY BIOSCIENCES, INC. - Common Stock, par value $0.001 per shares (the "Shares") (ASMB) together control 40% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| GILEAD SCIENCES, INC. | 29% | 4,505,391 | 0% | 7.9% | $153,228,348 |
| VANGUARD GROUP INC | 3.6% | 572,898 | +14% | 0% | $19,484,260 |
| FRANKLIN RESOURCES INC | 1.3% | 210,528 | 0% | 0% | $7,160,057 |
| BlackRock, Inc. | 1.2% | 192,296 | +13% | 0% | $6,539,986 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.83% | 131,307 | +0.93% | 0% | $4,467,714 |
| MARSHALL WACE, LLP | 0.82% | 129,075 | +51% | 0% | $4,389,840 |
| Patient Square Capital LP | 0.81% | 127,000 | -6.1% | 0.92% | $4,319,270 |
| JANE STREET GROUP, LLC | 0.34% | 53,702 | +59% | 0% | $1,826,405 |
| STATE STREET CORP | 0.34% | 52,989 | +18% | 0% | $1,802,156 |
| JPMORGAN CHASE & CO | 0.31% | 48,159 | +687886% | 0% | $1,637,888 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.24% | 37,812 | 0% | $1,285,986 | |
| Palumbo Wealth Management LLC | 0.24% | 37,305 | +7.2% | 0.31% | $1,268,744 |
| GOLDMAN SACHS GROUP INC | 0.22% | 34,794 | +97% | 0% | $1,183,344 |
| Ellsworth Advisors, LLC | 0.19% | 29,735 | -0.72% | 0.18% | $889,374 |
| Informed Momentum Co LLC | 0.19% | 29,523 | +1.6% | 0.11% | $1,004,077 |
| FEDERATED HERMES, INC. | 0.16% | 25,394 | 0% | 0% | $863,650 |
| BARCLAYS PLC | 0.16% | 24,741 | +525% | 0% | $841,442 |
| MORGAN STANLEY | 0.14% | 22,534 | +539% | 0% | $766,381 |
| Connor, Clark & Lunn Investment Management Ltd. | 0.13% | 20,802 | +86% | 0% | $707,476 |
| SEI INVESTMENTS CO | 0.11% | 17,745 | 0% | $603,507 | |
| OMERS ADMINISTRATION Corp | 0.1% | 15,598 | 0% | $530,488 | |
| Hudson Bay Capital Management LP | 0.1% | 15,050 | 0% | $511,851 | |
| GSA CAPITAL PARTNERS LLP | 0.08% | 12,699 | +2.2% | 0.04% | $432,000 |
| ACADIAN ASSET MANAGEMENT LLC | 0.08% | 12,446 | -47% | 0% | $422,000 |
| UBS Group AG | 0.06% | 9,779 | -38% | 0% | $332,583 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 6,388,221 | $217,142,264 | -$5,177,941 | $34.01 | 36 |
| 2025 Q3 | 12,244,439 | $313,500,808 | +$233,088,276 | $25.60 | 56 |
| 2025 Q2 | 3,148,479 | $57,049,319 | +$415,033 | $18.12 | 33 |
| 2025 Q1 | 3,175,639 | $30,358,304 | -$551,384 | $9.56 | 36 |
| 2024 Q4 | 3,185,761 | $50,270,587 | -$3,179,725 | $15.78 | 35 |
| 2024 Q3 | 1,026,987 | $15,540,749 | -$2,242,995 | $15.14 | 30 |
| 2024 Q2 | 1,175,256 | $16,110,171 | +$7,242,756 | $13.72 | 27 |
| 2024 Q1 | 647,283 | $8,609,474 | +$8,609,474 | $13.30 | 24 |