H2O America
DE ˙ DB ˙ US7843051043
SecurityDE:76W / H2O America
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership157,900 shares
Latest Disclosed Value $ 9,263,993
Renaissance Technologies Llc reports 87.98% increase in ownership of 76W / H2O America

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 157,900 shares of H2O America (DE:76W) valued at $9,263,993 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 84,000 shares of H2O America. This represents a change in shares of 87.98% during the quarter.

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)
2026-05-14 2026-03-31 13F H2O AMERICA COM 784305104 157,900 73,900 87.98 9,264 125.10 0.0145
2026-02-12 2025-12-31 13F H2O AMERICA COM 784305104 84,000 -32,300 -27.77 4,115 -27.34 0.0064
2025-11-13 2025-09-30 13F H2O AMERICA COM 784305104 116,300 84,600 266.88 5,664 243.84 0.0075
2025-08-13 2025-06-30 13F H2O AMERICA COM 784305104 31,700 -15,700 -33.12 1,647 -36.46 0.0022
2025-05-14 2025-03-31 13F SJW GROUP COM 784305104 47,400 -23,500 -33.15 2,592 -25.71 0.0039
2025-02-13 2024-12-31 13F SJW GROUP COM 784305104 70,900 -43,800 -38.19 3,490 -47.65 0.0052
2024-11-13 2024-09-30 13F SJW GROUP COM 784305104 114,700 -24,800 -17.78 6,665 -11.87 0.0100
2024-08-09 2024-06-30 13F SJW GROUP COM 784305104 139,500 -52,400 -27.31 7,564 75,530.00 0.0128
2024-05-13 2024-03-31 13F SJW GROUP COM 784305104 191,900 -19,100 -9.05 11 -23.08 0.0171
2024-02-13 2023-12-31 13F SJW GROUP COM 784305104 211,000 -25,700 -10.86 14 -7.14 0.0213
2023-11-14 2023-09-30 13F SJW GROUP COM 784305104 236,700 -40,000 -14.46 14 -26.32 0.0243
2023-08-11 2023-06-30 13F SJW GROUP COM 784305104 276,700 -37,300 -11.88 19 -17.39 0.0280
2023-05-12 2023-03-31 13F SJW GROUP COM 784305104 314,000 -24,900 -7.35 24 -14.81 0.0317
2023-02-13 2022-12-31 13F SJW GROUP COM 784305104 338,900 -10,500 -3.01 28 -99.87 0.0376
2022-11-14 2022-09-30 13F SJW GROUP COM 784305104 349,400 -48,700 -12.23 20,125 -19.00 0.0285
2022-08-12 2022-06-30 13F SJW GROUP COM 784305104 398,100 -3,900 -0.97 24,845 -11.18 0.0294
2022-05-13 2022-03-31 13F SJW GROUP COM 784305104 402,000 -28,400 -6.60 27,971 -11.22 0.0328
2022-02-11 2021-12-31 13F SJW GROUP COM 784305104 430,400 -54,600 -11.26 31,505 -1.67 0.0392
2021-11-12 2021-09-30 13F SJW GROUP COM 784305104 485,000 34,500 7.66 32,039 12.35 0.0414
2021-08-13 2021-06-30 13F SJW GROUP COM 784305104 450,500 -57,200 -11.27 28,517 -10.83 0.0356
2021-05-13 2021-03-31 13F SJW GROUP COM 784305104 507,700 -130,500 -20.45 31,980 -27.75 0.0398
2021-02-10 2020-12-31 13F SJW GROUP COM 784305104 638,200 -102,300 -13.81 44,266 -1.78 0.0481
2020-11-13 2020-09-30 13F SJW GROUP COM 784305104 740,500 -163,800 -18.11 45,067 -19.76 0.0450
2020-08-13 2020-06-30 13F SJW GROUP COM 784305104 904,300 -190,100 -17.37 56,166 -11.16 0.0485
2020-05-14 2020-03-31 13F SJW GROUP COM 784305104 1,094,400 25,500 2.39 63,223 -16.76 0.0614
2020-02-13 2019-12-31 13F SJW GROUP COM 784305104 1,068,900 10,500 0.99 75,956 5.09 0.0584
2019-11-13 2019-09-30 13F SJW GROUP COM 784305104 1,058,400 109,200 11.50 72,278 25.30 0.0612
2019-08-12 2019-06-30 13F SJW GROUP COM 784305104 949,200 103,700 12.26 57,683 10.50 0.0508
2019-05-14 2019-03-31 13F SJW GROUP COM 784305104 845,500 80,800 10.57 52,201 22.73 0.0475
2019-02-12 2018-12-31 13F SJW GROUP COM 784305104 764,700 136,300 21.69 42,533 10.69 0.0466
2018-11-13 2018-09-30 13F SJW GROUP COM 784305104 628,400 84,500 15.54 38,427 6.69 0.0395
2018-08-13 2018-06-30 13F/A-1 SJW GROUP COM 784305104 543,900 53,000 10.80 36,017 39.20 0.0393
2018-08-13 2018-06-30 13F SJW GROUP COM 784305104 490,900 25,875
2018-05-14 2018-03-31 13F SJW GROUP COM 784305104 490,900 53,200 12.15 25,875 -7.38 0.0283
2018-02-13 2017-12-31 13F SJW GROUP COM 784305104 437,700 19,400 4.64 27,938 18.00 0.0308
2017-11-13 2017-09-30 13F SJW GROUP COM 784305104 418,300 24,700 6.28 23,676 22.31 0.0279
2017-08-11 2017-06-30 13F SJW GROUP COM 784305104 393,600 26,600 7.25 19,357 9.38 0.0247
2017-05-12 2017-03-31 13F SJW GROUP COM 784305104 367,000 53,300 16.99 17,697 0.77 0.0247
2017-02-13 2016-12-31 13F SJW GROUP COM 784305104 313,700 46,900 17.58 17,561 50.69 0.0278
2016-11-14 2016-09-30 13F SJW COM 784305104 266,800 35,300 15.25 11,654 27.84 0.0206
2016-08-12 2016-06-30 13F SJW COM 784305104 231,500 -57,400 -19.87 9,116 -13.20 0.0174
2016-05-13 2016-03-31 13F SJW COM 784305104 288,900 167,000 137.00 10,502 190.59 0.0200
2016-02-11 2015-12-31 13F SJW COM 784305104 121,900 37,900 45.12 3,614 39.91 0.0079
2015-11-12 2015-09-30 13F SJW COM 784305104 84,000 27,400 48.41 2,583 48.70 0.0062
2015-08-14 2015-06-30 13F SJW COM 784305104 56,600 2,000 3.66 1,737 2.90 0.0040
2015-05-13 2015-03-31 13F SJW COM 784305104 54,600 14,400 35.82 1,688 30.75 0.0036
2015-02-13 2014-12-31 13F SJW COM 784305104 40,200 28,600 246.55 1,291 313.78 0.0031
2014-11-12 2014-09-30 13F SJW COM 784305104 11,600 11,600 312 0.0009
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.