NiSource Inc.
US ˙ NYSE ˙ US65473P1057

SecurityNI / NiSource Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership368,388 shares
Latest Disclosed Value $ 17,189
Natixis Advisors, L.p. reports 14.14% increase in ownership of NI / NiSource Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 368,388 shares of NiSource Inc. (US:NI) valued at $17,188,984 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 322,755 shares of NiSource Inc.. This represents a change in shares of 14.14% during the quarter. The current value of the position is $17,170,565 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)
2026-05-13 2026-03-31 13F NISOURCE COM 65473P105 368,388 45,633 14.14 17 30.77 0.0239
2026-02-10 2025-12-31 13F NISOURCE COM 65473P105 322,755 -5,340 -1.63 13 -7.14 0.0191
2025-11-13 2025-09-30 13F NISOURCE INC COM 65473P105 328,095 -127,895 -28.05 14 -22.22 0.0207
2025-08-13 2025-06-30 13F NISOURCE COM 65473P105 455,990 -162,649 -26.29 18 -25.00 0.0292
2025-05-08 2025-03-31 13F NISOURCE COM 65473P105 618,639 19,509 3.26 25 9.09 0.0458
2025-02-10 2024-12-31 13F NISOURCE COM 65473P105 599,130 12,885 2.20 22 10.00 0.0412
2024-11-06 2024-09-30 13F NISOURCE COM 65473P105 586,245 5,757 0.99 20 25.00 0.0396
2024-08-01 2024-06-30 13F NISOURCE COM 65473P105 580,488 4,032 0.70 17 6.67 0.0364
2024-04-25 2024-03-31 13F NISOURCE COM 65473P105 576,456 -13,794 -2.34 16 0.00 0.0367
2024-02-06 2023-12-31 13F NISOURCE COM 65473P105 590,250 320,218 118.59 16 150.00 0.0413
2023-11-13 2023-09-30 13F NISOURCE COM 65473P105 270,032 57,980 27.34 7 20.00 0.0204
2023-08-15 2023-06-30 13F NISOURCE COM 65473P105 212,052 21,562 11.32 6 0.00 0.0179
2023-05-11 2023-03-31 13F NISOURCE COM 65473P105 190,490 1,818 0.96 5 0.00 0.0183
2023-01-27 2022-12-31 13F NISOURCE COM 65473P105 188,672 -48,086 -20.31 5 -99.92 0.0196
2022-11-14 2022-09-30 13F NISOURCE COM 65473P105 236,758 42,353 21.79 5,964 4.03 0.0252
2022-08-12 2022-06-30 13F NISOURCE COM 65473P105 194,405 -12,680 -6.12 5,733 -12.94 0.0252
2022-05-12 2022-03-31 13F NISOURCE COM 65473P105 207,085 -95,827 -31.64 6,585 -21.26 0.0251
2022-02-08 2021-12-31 13F NISOURCE COM 65473P105 302,912 39,813 15.13 8,363 31.18 0.0319
2021-11-15 2021-09-30 13F NISOURCE COM 65473P105 263,099 2,211 0.85 6,375 -0.27 0.0262
2021-08-12 2021-06-30 13F NISOURCE COM 65473P105 260,888 9,811 3.91 6,392 5.60 0.0298
2021-05-05 2021-03-31 13F NISOURCE COM 65473P105 251,077 -118,996 -32.15 6,053 -28.70 0.0316
2021-02-12 2020-12-31 13F NISOURCE COM 65473P105 370,073 124,375 50.62 8,489 57.06 0.0489
2020-11-12 2020-09-30 13F NISOURCE COM 65473P105 245,698 12,345 5.29 5,405 1.87 0.0340
2020-08-11 2020-06-30 13F NISOURCE COM 65473P105 233,353 43,790 23.10 5,306 12.11 0.0352
2020-04-27 2020-03-31 13F NISOURCE COM 65473P105 189,563 88,645 87.84 4,733 68.43 0.0386
2020-02-10 2019-12-31 13F NISOURCE COM 65473P105 100,918 871 0.87 2,810 -6.11 0.0198
2019-11-12 2019-09-30 13F NISOURCE SPON ADR 65473P105 100,047 7,996 8.69 2,993 12.90 0.0238
2019-08-12 2019-06-30 13F NISOURCE COM 65473P105 92,051 3,540 4.00 2,651 4.49 0.0217
2019-05-15 2019-03-31 13F/A-1 NISOURCE COM 65473P105 88,511 1,865 2.15 2,537 15.53 0.0222
2019-05-15 2019-03-31 13F NISOURCE COM 65473P105 88,511 1,865 2,537
2019-02-13 2018-12-31 13F/A-1 NISOURCE COM 65473P105 86,646 21,309 32.61 2,196 34.89 0.0217
2019-02-13 2018-12-31 13F NISOURCE COM 65473P105 86,646 21,309 2,196
2018-11-13 2018-09-30 13F NISOURCE COM 65473P105 65,337 -2,976 -4.36 1,628 -9.30 0.0143
2018-08-14 2018-06-30 13F/A-1 NISOURCE COM 65473P105 68,313 3,595 5.55 1,795 16.03 0.0171
2018-08-14 2018-06-30 13F NISOURCE COM 65473P105 68,313 1,795
2018-05-10 2018-03-31 13F NISOURCE COM 65473P105 64,718 186 0.29 1,547 -6.64 0.0153
2018-02-14 2017-12-31 13F NISOURCE COM 65473P105 64,532 -1,026 -1.57 1,657 -1.19 0.0169
2017-11-14 2017-09-30 13F NISOURCE COM 65473P105 65,558 12,267 23.02 1,677 24.13 0.0177
2017-07-27 2017-06-30 13F NISOURCE COM 65473P105 53,291 3,438 6.90 1,351 13.91 0.0146
2017-05-12 2017-03-31 13F NISOURCE COM 65473P105 49,853 2,966 6.33 1,186 14.26 0.0131
2017-02-07 2016-12-31 13F NISOURCE COM 65473P105 46,887 929 2.02 1,038 -6.32 0.0125
2016-11-04 2016-09-30 13F NISOURCE COM 65473P105 45,958 650 1.43 1,108 -7.82 0.0144
2016-08-01 2016-06-30 13F NISOURCE COM 65473P105 45,308 -3,402 -6.98 1,202 4.70 0.0166
2016-05-06 2016-03-31 13F NISOURCE COM 65473P105 48,710 2,220 4.78 1,148 26.57 0.0172
2016-02-12 2015-12-31 13F NISOURCE COM 65473P105 46,490 -18,605 -28.58 907 -24.92 0.0149
2015-11-12 2015-09-30 13F NISOURCE COM 65473P105 65,095 41,779 179.19 1,208 189.00 0.0210
2015-08-14 2015-06-30 13F NISOURCE COM 65473P105 23,316 -156 -0.66 418 -59.69 0.0071
2015-05-15 2015-03-31 13F NISOURCE COM 65473P105 23,472 -16 -0.07 1,037 4.12 0.0182
2015-02-05 2014-12-31 13F NISOURCE COM 65473P105 23,488 412 1.79 996 5.29 0.0186
2014-11-03 2014-09-30 13F NISOURCE COM 65473P105 23,076 -8,548 -27.03 946 -23.95 0.0190
2014-08-13 2014-06-30 13F NISOURCE COM 65473P105 31,624 934 3.04 1,244 14.13 0.0178
2014-05-13 2014-03-31 13F NISOURCE COM 65473P105 30,690 1,189 4.03 1,090 12.37 0.0168
2014-02-12 2013-12-31 13F NISOURCE COM 65473P105 29,501 4,470 17.86 970 25.49 0.0159
2013-10-30 2013-09-30 13F NISOURCE COM 65473P105 25,031 -1,663 -6.23 773 1.05 0.0142
2013-07-19 2013-06-30 13F NISOURCE COM 65473P105 26,694 26,694 765 0.0152
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.