Atlas Venture Life Science Advisors, LLC
CIK 1917529 · Holdings on Mar 31, 2025 · First reported May 14, 2025
Top ten holdings
Q1 2025- KYMR25.69%
- IRON22.69%
- DYN18.30%
- DAWN9.77%
- SION7.41%
- THRD6.92%
- KRRO3.79%
- VIGL1.99%
- 45175G1081.23%
- 0080641070.87%
Share classes counted separately98.66%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- THRDWeight decreased · -6.14 pp13.06% → 6.92%Shares 0 (0.00%)
- DYNWeight decreased · -4.75 pp23.05% → 18.30%Shares +1.11M (+13.86%)
- IRONWeight increased · +3.28 pp19.41% → 22.69%Shares -125.00K (-4.98%)
Weight = security value ÷ total reported holdings value. Changes are in percentage points; price moves also affect weights, so they are not trade sizes.
Top 10 holdings 13
USD · B = billion · M = million; expand a row for exact values| # | Security | Value | Weight | Quantity | Weight / quantity change | Activity | |
|---|---|---|---|---|---|---|---|
| 01 | KYMRKYMERA THERAPEUTICS INCCommon Stock View history and evidence | $134.02M | 25.69% | 4.90M shares | 24.03% → 25.69%+1.66 pp 0 (0.00%) | Unchanged | ↗▾ |
| 02 | IRONDISC MEDICINE INCCommon Stock View history and evidence | $118.36M | 22.69% | 2.38M shares | 19.41% → 22.69%+3.28 pp -125.00K (-4.98%) | Reduced | ↗▾ |
| 03 | DYNDYNE THERAPEUTICS INCCommon Stock View history and evidence | $95.50M | 18.30% | 9.13M shares | 23.05% → 18.30%-4.75 pp +1.11M (+13.86%) | Added | ↗▾ |
| 04 | DAWNDAY ONE BIOPHARMACEUTICALS ICommon Stock View history and evidence | $50.99M | 9.77% | 6.43M shares | 9.94% → 9.77%-0.17 pp 0 (0.00%) | Unchanged | ↗▾ |
| 05 | SIONSIONNA THERAPEUTICS INCCommon Stock View history and evidence | $38.64M | 7.41% | 3.69M shares | Prior unavailable +3.69M | New | ↗▾ |
| 06 | THRDTHIRD HARMONIC BIO INCCommon Stock View history and evidence | $36.10M | 6.92% | 10.40M shares | 13.06% → 6.92%-6.14 pp 0 (0.00%) | Unchanged | ↗▾ |
| 07 | KRROKORRO BIO INCCommon Stock View history and evidence | $19.80M | 3.79% | 1.14M shares | 5.28% → 3.79%-1.49 pp 0 (0.00%) | Unchanged | ↗▾ |
| 08 | VIGLVIGIL NEUROSCIENCE INCCommon Stock View history and evidence | $10.39M | 1.99% | 5.84M shares | 1.21% → 1.99%+0.78 pp 0 (0.00%) | Unchanged | ↗▾ |
| 09 | 45175G108Ikena Oncology, Inc.Common Stock View history and evidence | $6.42M | 1.23% | 5.02M shares | 1.00% → 1.23%+0.23 pp 0 (0.00%) | Unchanged | ↗▾ |
| 10 | 008064107Aerovate Therapeutics, Inc.Common Stock View history and evidence | $4.52M | 0.87% | 1.80M shares | 0.58% → 0.87%+0.29 pp 0 (0.00%) | Unchanged | ↗▾ |
Options overlay 0
No options reported this quarter.
Exited positions 1
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| TECX TECTONIC THERAPEUTIC INC | Non-derivative | -78,447 | -$3.62M | SEC filing ↗ | SEC filing ↗ |
1 / 1 preview exits. Up to 30 exit records are previewed. Exit means absent from the current filing; execution date, price and proceeds are unknown.
Every number has a source.
CIK 1917529 · Period 2025-03-31
Data loaded 2026-09-23 · First reported 2025-05-14
Amendments and versions
{
"amendments_merged": null,
"prior_versions": null,
"cover_table_value": 521764233
}Take these holdings further.
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