Manager × security

WESTFIELD CAPITAL MANAGEMENT CO LP VRT holdings history

Who else holds this security?

VERTIV HOLDINGS CO-A · CUSIP 92537N108 · CIK 1177719

This is the oldest quarter open without an account, so changes against the quarter before it are withheld. Sign in to see them.
Citable facts

As of 2026-06-30, WESTFIELD CAPITAL MANAGEMENT CO LP reported 1.05M VRT (shares), valued at $353.02M, or 1.15% of its reported non-derivative portfolio. Filed 2026-08-12.

Verify history & sources
Portfolio weight and quantity history
Reported portfolio weight
1.15%
Shares
1.05M
1,054,361
Reported value
$353.02M
USD

Shares decreased 45.13%; reported value decreased 26.69%, and weight changed -0.87 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.

QuarterWeightQuantitySource
Q2 20261.15%1,054,361SEC filingFiled Aug 12, 2026
Q1 20262.02%1,921,696SEC filingFiled May 11, 2026
Q4 20251.54%2,277,716SEC filingFiled Feb 11, 2026
Q3 20251.42%2,247,218SEC filingFiled Nov 12, 2025
Q2 20251.42%2,637,409SEC filingFiled Aug 12, 2025
Q1 20250.84%2,377,572SEC filingFiled May 9, 2025
Q4 20241.84%3,720,010SEC filingFiled Feb 11, 2025
Q3 20241.62%3,611,566SEC filingFiled Nov 12, 2024
Q2 20241.52%3,570,870SEC filingFiled Aug 14, 2024
Q1 20241.46%3,399,272SEC filingFiled May 10, 2024
Q4 20230.51%1,835,806SEC filingFiled Feb 9, 2024
Q3 20230.32%1,249,534SEC filingFiled Nov 13, 2023

History & evidence by quarter

QuarterWeightQuantityValueChange explainedSource
Q3 20230.32%1,249,534$46.48MThe prior quarter is outside the free window. Sign in for the comparison.SEC filing
Filed Nov 13, 2023
Q4 20230.51%1,835,806$88.17MShares increased 46.92%; reported value increased 89.69%, and weight changed +0.19 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Feb 9, 2024
Q1 20241.46%3,399,272$277.62MShares increased 85.17%; reported value increased 214.85%, and weight changed +0.95 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed May 10, 2024
Q2 20241.52%3,570,870$309.13MShares increased 5.05%; reported value increased 11.35%, and weight changed +0.06 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Aug 14, 2024
Q3 20241.62%3,611,566$359.31MShares increased 1.14%; reported value increased 16.23%, and weight changed +0.10 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Nov 12, 2024
Q4 20241.84%3,720,010$422.63MShares increased 3.00%; reported value increased 17.62%, and weight changed +0.22 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Feb 11, 2025
Q1 20250.84%2,377,572$171.66MShares decreased 36.09%; reported value decreased 59.38%, and weight changed -1.00 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed May 9, 2025
Q2 20251.42%2,637,409$338.67MShares increased 10.93%; reported value increased 97.29%, and weight changed +0.58 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Aug 12, 2025
Q3 20251.42%2,247,218$339.02MShares decreased 14.79%; reported value increased 0.10%, and weight changed +0.00 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Nov 12, 2025
Q4 20251.54%2,277,716$369.01MShares increased 1.36%; reported value increased 8.85%, and weight changed +0.12 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Feb 11, 2026
Q1 20262.02%1,921,696$481.54MShares decreased 15.63%; reported value increased 30.49%, and weight changed +0.48 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed May 11, 2026
Q2 20261.15%1,054,361$353.02MShares decreased 45.13%; reported value decreased 26.69%, and weight changed -0.87 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing
Filed Aug 12, 2026
WESTFIELD CAPITAL MANAGEMENT CO LP · VERTIV HOLDINGS CO-A

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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.

13F reports quarter-end long positions in securities traded on US exchanges, filed by managers holding at least $100 million of such securities; it is not the manager's full portfolio, not assets under management, and value changes are not returns. Weights use the reported total value as denominator. Option rows show notional value, not premium or net exposure. Amendments are merged into the quarter when Akkru could match them.