ANNEXON INC · CUSIP 03589W102 · CIK 1703031
As of 2026-06-30, Bain Capital Life Sciences Investors, LLC reported 4.44M ANNX (shares), valued at $25.34M, or 1.51% of its reported non-derivative portfolio. Filed 2026-08-14.
Verify history & sources →Shares decreased 14.87%; reported value decreased 12.25%, and weight changed -1.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.
Left: % · Right: Shares · Independently scaled axes
Exact data and methodology
Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.
| Quarter | Weight | Quantity | Source |
|---|---|---|---|
| Q2 2026 | 1.51% | 4,437,731 | SEC filing ↗Filed Aug 14, 2026 |
| Q1 2026 | 2.60% | 5,212,674 | SEC filing ↗Filed May 15, 2026 |
| Q4 2025 | 2.02% | 5,249,069 | SEC filing ↗Filed Feb 17, 2026 |
| Q3 2025 | 1.06% | 5,249,069 | SEC filing ↗Filed Nov 14, 2025 |
| Q2 2025 | 1.58% | 5,249,069 | SEC filing ↗Filed Aug 14, 2025 |
| Q1 2025 | 1.50% | 5,249,069 | SEC filing ↗Filed May 15, 2025 |
| Q4 2024 | 3.17% | 5,249,069 | SEC filing ↗Filed Feb 14, 2025 |
| Q3 2024 | 5.20% | 8,449,748 | SEC filing ↗Filed Nov 14, 2024 |
| Q2 2024 | 4.55% | 8,449,208 | SEC filing ↗Filed Aug 12, 2024 |
| Q1 2024 | 5.02% | 8,703,268 | SEC filing ↗Filed May 15, 2024 |
| Q4 2023 | 3.51% | 8,061,719 | SEC filing ↗Filed Feb 13, 2024 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q4 2023 | 3.51% | 8,061,719 | $36.60M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Feb 13, 2024 |
| Q1 2024 | 5.02% | 8,703,268 | $62.40M | Shares increased 7.96%; reported value increased 70.50%, and weight changed +1.51 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2024 |
| Q2 2024 | 4.55% | 8,449,208 | $41.40M | Shares decreased 2.92%; reported value decreased 33.65%, and weight changed -0.47 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 12, 2024 |
| Q3 2024 | 5.20% | 8,449,748 | $50.02M | Shares increased 0.01%; reported value increased 20.82%, and weight changed +0.65 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 14, 2024 |
| Q4 2024 | 3.17% | 5,249,069 | $26.93M | Shares decreased 37.88%; reported value decreased 46.17%, and weight changed -2.03 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 14, 2025 |
| Q1 2025 | 1.50% | 5,249,069 | $10.13M | Shares unchanged; reported value decreased 62.38%, and weight changed -1.67 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2025 |
| Q2 2025 | 1.58% | 5,249,069 | $12.60M | Shares unchanged; reported value increased 24.35%, and weight changed +0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2025 |
| Q3 2025 | 1.06% | 5,249,069 | $16.01M | Shares unchanged; reported value increased 27.08%, and weight changed -0.52 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 14, 2025 |
| Q4 2025 | 2.02% | 5,249,069 | $26.35M | Shares unchanged; reported value increased 64.59%, and weight changed +0.96 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 17, 2026 |
| Q1 2026 | 2.60% | 5,212,674 | $28.88M | Shares decreased 0.69%; reported value increased 9.59%, and weight changed +0.58 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2026 |
| Q2 2026 | 1.51% | 4,437,731 | $25.34M | Shares decreased 14.87%; reported value decreased 12.25%, and weight changed -1.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2026 |
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