Middlesex Water Company
US ˙ NasdaqGS ˙ US5966801087

SecurityMSEX / Middlesex Water Company
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership21,584 shares
Latest Disclosed Value $ 1,123,447
Squarepoint Ops LLC ownership in MSEX / Middlesex Water Company

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 21,584 shares of Middlesex Water Company (US:MSEX) valued at $1,123,447 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 14, 2025 disclosing 0 shares of Middlesex Water Company. The current value of the position is $1,152,586 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 MIDDLESEX WTR COM 596680108 21,584 21,584 1,123 0.0013
2025-11-14 2025-09-30 13F MIDDLESEX WTR COM 596680108 0 -27,380 -100.00 0 -100.00
2025-08-27 2025-06-30 13F/A-1 MIDDLESEX WTR COM 596680108 27,380 11,929 77.21 1,483 49.80 0.0015
2025-08-14 2025-06-30 13F MIDDLESEX WTR COM 596680108 27,380 11,929 1,483 0.0015
2025-08-27 2025-03-31 13F/A-1 MIDDLESEX WTR COM 596680108 15,451 -9,922 -39.10 990 -25.84 0.0012
2025-05-15 2025-03-31 13F MIDDLESEX WTR COM 596680108 15,451 -9,922 990 0.0012
2025-02-14 2024-12-31 13F MIDDLESEX WTR COM 596680108 25,373 13,786 118.98 1,335 76.82 0.0013
2024-11-14 2024-09-30 13F MIDDLESEX WTR COM 596680108 11,587 2,125 22.46 756 52.83 0.0012
2024-08-14 2024-06-30 13F MIDDLESEX WTR COM 596680108 9,462 421 4.66 494 4.22 0.0008
2024-05-15 2024-03-31 13F MIDDLESEX WTR COM 596680108 9,041 3,168 53.94 475 23.12 0.0008
2024-02-14 2023-12-31 13F MIDDLESEX WTR COM 596680108 5,873 5,873 385 0.0007
2023-05-15 2023-03-31 13F MIDDLESEX WTR COM 596680108 0 -14,230 -100.00 0 -100.00
2023-02-14 2022-12-31 13F MIDDLESEX WTR COM 596680108 14,230 10,431 274.57 1,119 281.91 0.0044
2022-11-14 2022-09-30 13F MIDDLESEX WTR COM 596680108 3,799 -6,909 -64.52 293 -68.80 0.0015
2022-08-15 2022-06-30 13F MIDDLESEX WTR COM 596680108 10,708 10,708 939 0.0052
2021-05-17 2021-03-31 13F MIDDLESEX WTR COM 596680108 0 -4,461 -100.00 0 -100.00
2021-02-16 2020-12-31 13F MIDDLESEX WTR COM 596680108 4,461 4,461 323 0.0024
2020-05-15 2020-03-31 13F MIDDLESEX WATER COM 596680108 0 -9,084 -100.00 0 -100.00
2020-02-14 2019-12-31 13F MIDDLESEX WATER COM 596680108 9,084 4,022 79.45 577 75.38 0.0034
2019-11-14 2019-09-30 13F MIDDLESEX WATER COM 596680108 5,062 -1,829 -26.54 329 -19.36 0.0029
2019-08-14 2019-06-30 13F MIDDLESEX WATER COM 596680108 6,891 6,891 408 0.0040
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.