풀 코퍼레이션
US ˙ NasdaqGS ˙ US73278L1052

SecurityPOOL / Pool Corporation
InstitutionVestmark Advisory Solutions, Inc.
Latest Disclosed Ownership23,130 shares
Latest Disclosed Value $ 4,680,052
Vestmark Advisory Solutions, Inc. reports 78.20% increase in ownership of POOL / Pool Corporation

On May 15, 2026 - Vestmark Advisory Solutions, Inc. filed a 13F-HR form disclosing ownership of 23,130 shares of Pool Corporation (US:POOL) valued at $4,679,893 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 12,980 shares of Pool Corporation. This represents a change in shares of 78.20% during the quarter. The current value of the position is $4,237,879 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F POOL COM 73278L105 23,130 10,150 78.20 4,680 57.63 0.0322
2026-02-06 2025-12-31 13F POOL COM 73278L105 12,980 -4,334 -25.03 2,969 -44.69 0.0401
2025-11-10 2025-09-30 13F POOL COM 73278L105 17,314 1,808 11.66 5,368 18.79 0.1023
2025-08-06 2025-06-30 13F POOL COM 73278L105 15,506 -15,502 -49.99 4,520 -54.22 0.0653
2025-05-13 2025-03-31 13F POOL COM 73278L105 31,008 17,466 128.98 9,871 113.80 0.2542
2025-02-06 2024-12-31 13F POOL COM 73278L105 13,542 -1,522 -10.10 4,617 -18.66 0.1590
2024-11-14 2024-09-30 13F POOL COM 73278L105 15,064 933 6.60 5,676 30.72 0.2113
2024-08-12 2024-06-30 13F POOL COM 73278L105 14,131 538 3.96 4,343 -20.82 0.1813
2024-05-15 2024-03-31 13F POOL COM 73278L105 13,593 1,052 8.39 5,485 9.68 0.2362
2024-02-06 2023-12-31 13F POOL COM 73278L105 12,541 752 6.38 5,000 19.10 0.2540
2023-11-06 2023-09-30 13F POOL COM 73278L105 11,789 -11,191 -48.70 4,198 -51.23 0.3052
2023-08-07 2023-06-30 13F POOL COM 73278L105 22,980 609 2.72 8,609 12.38 0.3278
2023-05-09 2023-03-31 13F POOL COM 73278L105 22,371 886 4.12 7,661 17.94 0.3318
2023-01-20 2022-12-31 13F POOL COM 73278L105 21,485 1,079 5.29 6,496 0.03 0.3165
2022-11-03 2022-09-30 13F POOL COM 73278L105 20,406 965 4.96 6,493 -4.91 0.3619
2022-08-04 2022-06-30 13F POOL COM 73278L105 19,441 2,455 14.45 6,828 -4.93 0.3900
2022-04-27 2022-03-31 13F POOL COM 73278L105 16,986 483 2.93 7,182 -23.11 0.4065
2022-01-31 2021-12-31 13F POOL COM 73278L105 16,503 1,235 8.09 9,341 40.83 0.5271
2021-11-15 2021-09-30 13F POOL COM 73278L105 15,268 1,765 13.07 6,633 7.10 0.4492
2021-08-09 2021-06-30 13F POOL COM 73278L105 13,503 1,215 9.89 6,193 45.99 0.4406
2021-05-10 2021-03-31 13F POOL COM 73278L105 12,288 4,484 57.46 4,242 45.92 0.3763
2021-02-04 2020-12-31 13F POOL COM 73278L105 7,804 557 7.69 2,907 19.93 0.3262
2020-10-19 2020-09-30 13F POOL COM 73278L105 7,247 422 6.18 2,424 30.60 0.3256
2020-08-13 2020-06-30 13F POOL COM 73278L105 6,825 338 5.21 1,856 45.45 0.2872
2020-05-06 2020-03-31 13F POOL COM 73278L105 6,487 6,487 1,276 0.2494
2020-02-14 2019-12-31 13F POOL COM 73278L105 0 -6,089 -100.00 0 -100.00
2019-11-05 2019-09-30 13F POOL COM 73278L105 6,089 626 11.46 1,228 17.74 0.1991
2019-08-20 2019-06-30 13F POOL COM 73278L105 5,463 377 7.41 1,043 24.31 0.1785
2019-05-14 2019-03-31 13F POOL COM 73278L105 5,086 5,086 839 0.1496
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.