CenterBook Partners LP IAS holdings history
INTEGRAL AD SCIENCE HOLDING · CUSIP 45828L108 · CIK 1872738
As of 2025-09-30, CenterBook Partners LP reported 536.07K IAS (shares), valued at $5.45M, or 0.27% of its reported non-derivative portfolio. Filed 2025-11-07.
Verify history & sources →Shares decreased 68.77%; reported value decreased 61.78%, and weight changed -0.52 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 | Not reported | Not reported | — |
| Q1 2026 | Not reported | Not reported | — |
| Q4 2025 | Not reported | Not reported | — |
| Q3 2025 | 0.27% | 536,066 | SEC filing ↗Filed Nov 7, 2025 |
| Q2 2025 | 0.79% | 1,716,602 | SEC filing ↗Filed Aug 12, 2025 |
| Q1 2025 | 0.33% | 651,880 | SEC filing ↗Filed May 9, 2025 |
| Q4 2024 | 0.64% | 1,019,044 | SEC filing ↗Filed Feb 13, 2025 |
| Q3 2024 | 0.60% | 900,325 | SEC filing ↗Filed Nov 14, 2024 |
| Q2 2024 | 0.69% | 1,143,612 | SEC filing ↗Filed Aug 12, 2024 |
| Q1 2024 | 1.35% | 1,955,076 | SEC filing ↗Filed May 10, 2024 |
| Q4 2023 | 0.61% | 347,522 | SEC filing ↗Filed Feb 13, 2024 |
| Q3 2023 | 0.67% | 454,995 | SEC filing ↗Filed Nov 13, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 0.67% | 454,995 | $5.41M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Nov 13, 2023 |
| Q4 2023 | 0.61% | 347,522 | $5.00M | Shares decreased 23.62%; reported value decreased 7.56%, and weight changed -0.06 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 13, 2024 |
| Q1 2024 | 1.35% | 1,955,076 | $19.49M | Shares increased 462.58%; reported value increased 289.78%, and weight changed +0.74 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 10, 2024 |
| Q2 2024 | 0.69% | 1,143,612 | $11.12M | Shares decreased 41.51%; reported value decreased 42.97%, and weight changed -0.66 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 12, 2024 |
| Q3 2024 | 0.60% | 900,325 | $9.73M | Shares decreased 21.27%; reported value decreased 12.45%, and weight changed -0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 14, 2024 |
| Q4 2024 | 0.64% | 1,019,044 | $10.64M | Shares increased 13.19%; reported value increased 9.31%, and weight changed +0.04 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 13, 2025 |
| Q1 2025 | 0.33% | 651,880 | $5.25M | Shares decreased 36.03%; reported value decreased 50.61%, and weight changed -0.31 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 9, 2025 |
| Q2 2025 | 0.79% | 1,716,602 | $14.26M | Shares increased 163.33%; reported value increased 171.50%, and weight changed +0.46 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 12, 2025 |
| Q3 2025 | 0.27% | 536,066 | $5.45M | Shares decreased 68.77%; reported value decreased 61.78%, and weight changed -0.52 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 7, 2025 |
| Q4 2025 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
| Q1 2026 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
| Q2 2026 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
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This page includes 12 of 12 reported holdings. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
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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.