| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Foresite Capital Fund VI LP | 14% | -11% | $158,014,106 | +$9,680,555 | 16,189,804 | +6.5% | James B. Tananbaum | 08 Jan 2026 |
| AyurMaya Capital Management Company, LP | 16% | -29% | $65,554,931 | +$19,457,899 | 15,139,707 | +42% | AyurMaya Capital Management Company, LP | 21 May 2025 |
| Samsara BioCapital, L.P. | 5.4% | +2% | $61,929,972 | +$11,811,946 | 6,345,219 | +24% | Srinivas Akkaraju | 09 Jan 2026 |
| venBio Global Strategic Fund IV, L.P. | 4.8% | $21,297,292 | 4,619,803 | venBio Global Strategic Fund IV, L.P. | 30 Jun 2025 |
As of 30 Sep 2025, 129 institutional investors reported holding 77,994,182 shares of ALUMIS INC. - Common Stock, $0.0001 par value per share (ALMS). This represents 66% of the company’s total 117,504,056 outstanding shares.
The largest institutional shareholders of ALUMIS INC. - Common Stock, $0.0001 par value per share (ALMS) together control 59% 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 |
|---|---|---|---|---|---|
| AyurMaya Capital Management Company, LP | 13% | 15,139,706 | -0% | 100% | $60,407,427 |
| Foresite Capital Management V, LLC | 4.9% | 5,779,348 | 0% | 21% | $23,059,599 |
| SAMSARA BIOCAPITAL, LLC | 4.1% | 4,801,370 | 0% | 2.5% | $19,157,466 |
| venBio Partners LLC | 3.9% | 4,619,803 | 0% | 10% | $18,433,014 |
| Foresite Capital Management VI LLC | 3.6% | 4,247,670 | 0% | 6.5% | $16,948,203 |
| BlackRock, Inc. | 3.6% | 4,193,077 | +0.42% | 0% | $16,730,377 |
| VANGUARD GROUP INC | 3.4% | 4,029,615 | +18% | 0% | $16,078,164 |
| Trium Capital LLP | 2.7% | 3,122,111 | +18% | 4.9% | $12,457,223 |
| Nextech Invest, Ltd. | 2.5% | 2,915,998 | 0% | 1.8% | $11,634,832 |
| Cormorant Asset Management, LP | 1.8% | 2,147,396 | 0% | 0.59% | $8,568,110 |
| SR One Capital Management, LP | 1.7% | 1,959,896 | 0% | 1.1% | $7,819,985 |
| ORBIMED ADVISORS LLC | 1.6% | 1,926,423 | 0% | 0.18% | $7,686,428 |
| Woodline Partners LP | 1.5% | 1,751,150 | +810% | 0.03% | $6,987,089 |
| BAKER BROS. ADVISORS LP | 1.3% | 1,562,500 | 0% | 0.05% | $6,234,375 |
| TYBOURNE CAPITAL MANAGEMENT (HK) LTD | 1.2% | 1,399,250 | 0% | 18% | $5,583,008 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.2% | 1,393,286 | +19% | 0% | $5,560,300 |
| GENERAL ATLANTIC, L.P. | 1.1% | 1,297,530 | 0% | 0.16% | $5,177,145 |
| BML Capital Management, LLC | 1% | 1,210,415 | 0% | 4.4% | $4,829,556 |
| TANG CAPITAL MANAGEMENT LLC | 0.99% | 1,167,009 | -42% | 0.18% | $4,656,366 |
| STATE STREET CORP | 0.94% | 1,101,886 | -0.65% | 0% | $4,396,525 |
| Velan Capital Investment Management LP | 0.81% | 946,683 | -42% | 3.5% | $3,777,265 |
| Yu Fan | 0.67% | 789,618 | 0% | 4.1% | $3,150,576 |
| UBS Group AG | 0.65% | 762,675 | -37% | 0% | $3,043,073 |
| Opaleye Management Inc. | 0.57% | 665,000 | -14% | 0.38% | $2,653,350 |
| Omega Fund Management, LLC | 0.56% | 653,223 | 0% | 1.2% | $2,606,360 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 1,712 | $16,710 | +$12,628 | $9.76 | 4 |
| 2025 Q3 | 77,994,182 | $311,197,951 | -$66,377 | $3.99 | 129 |
| 2025 Q2 | 78,328,492 | $234,986,451 | +$110,676,400 | $3.00 | 112 |
| 2025 Q1 | 40,203,252 | $246,847,824 | -$2,907,398 | $6.14 | 72 |
| 2024 Q4 | 40,261,542 | $316,457,060 | +$7,975,169 | $7.86 | 64 |
| 2024 Q3 | 34,986,402 | $373,656,754 | +$57,248,083 | $10.68 | 51 |
| 2024 Q2 | 28,575,030 | $380,047,605 | +$380,047,605 | $13.30 | 29 |