ANALOG DEVICES INC · CUSIP 032654105 · CIK 18748
As of 2026-06-30, Central Securities Corp reported 350.00K ADI (shares), valued at $139.01M, or 10.37% of its reported non-derivative portfolio. Filed 2026-08-10.
Verify history & sources →Shares unchanged; reported value increased 24.84%, and weight changed +1.18 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 | 10.37% | 350,000 | SEC filing ↗Filed Aug 10, 2026 |
| Q1 2026 | 9.19% | 350,000 | SEC filing ↗Filed May 8, 2026 |
| Q4 2025 | 7.85% | 360,000 | SEC filing ↗Filed Feb 10, 2026 |
| Q3 2025 | 7.28% | 360,000 | SEC filing ↗Filed Nov 12, 2025 |
| Q2 2025 | 7.77% | 370,000 | SEC filing ↗Filed Aug 7, 2025 |
| Q1 2025 | 7.48% | 390,000 | SEC filing ↗Filed May 7, 2025 |
| Q4 2024 | 8.12% | 400,000 | SEC filing ↗Filed Feb 13, 2025 |
| Q3 2024 | 8.93% | 400,000 | SEC filing ↗Filed Nov 8, 2024 |
| Q2 2024 | 9.00% | 400,000 | SEC filing ↗Filed Aug 13, 2024 |
| Q1 2024 | 7.99% | 400,000 | SEC filing ↗Filed May 7, 2024 |
| Q4 2023 | 9.49% | 440,000 | SEC filing ↗Filed Feb 9, 2024 |
| Q3 2023 | 9.41% | 440,000 | SEC filing ↗Filed Nov 8, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 9.41% | 440,000 | $77.04M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Nov 8, 2023 |
| Q4 2023 | 9.49% | 440,000 | $87.37M | Shares unchanged; reported value increased 13.40%, and weight changed +0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 9, 2024 |
| Q1 2024 | 7.99% | 400,000 | $79.12M | Shares decreased 9.09%; reported value decreased 9.44%, and weight changed -1.50 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 7, 2024 |
| Q2 2024 | 9.00% | 400,000 | $91.30M | Shares unchanged; reported value increased 15.41%, and weight changed +1.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 13, 2024 |
| Q3 2024 | 8.93% | 400,000 | $92.07M | Shares unchanged; reported value increased 0.84%, and weight changed -0.07 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 8, 2024 |
| Q4 2024 | 8.12% | 400,000 | $84.98M | Shares unchanged; reported value decreased 7.69%, and weight changed -0.81 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 13, 2025 |
| Q1 2025 | 7.48% | 390,000 | $78.65M | Shares decreased 2.50%; reported value decreased 7.45%, and weight changed -0.64 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 7, 2025 |
| Q2 2025 | 7.77% | 370,000 | $88.07M | Shares decreased 5.13%; reported value increased 11.97%, and weight changed +0.29 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 7, 2025 |
| Q3 2025 | 7.28% | 360,000 | $88.45M | Shares decreased 2.70%; reported value increased 0.44%, and weight changed -0.49 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 12, 2025 |
| Q4 2025 | 7.85% | 360,000 | $97.63M | Shares unchanged; reported value increased 10.38%, and weight changed +0.57 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 10, 2026 |
| Q1 2026 | 9.19% | 350,000 | $111.35M | Shares decreased 2.78%; reported value increased 14.05%, and weight changed +1.34 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 8, 2026 |
| Q2 2026 | 10.37% | 350,000 | $139.01M | Shares unchanged; reported value increased 24.84%, and weight changed +1.18 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 10, 2026 |
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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.