NiSource Inc.
US ˙ NYSE ˙ US65473P1057

SecurityNI / NiSource Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership594,741 shares
Latest Disclosed Value $ 27,750,631
Citigroup Inc ownership in NI / NiSource Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 594,741 shares of NiSource Inc. (US:NI) valued at $27,750,615 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 504,171 shares of NiSource Inc.. This represents a change in shares of 17.96% during the quarter. The current value of the position is $27,078,558 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (NI) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

NI / NiSource Inc. Historical Put/Call Ratio
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)
2026-05-11 2026-03-31 13F NISOURCE COM 65473P105 594,741 90,570 17.96 27,751 31.80 0.0060
2026-02-13 2025-12-31 13F NISOURCE COM 65473P105 504,171 47,791 10.47 21,054 6.54 0.0093
2025-11-10 2025-09-30 13F NISOURCE COM 65473P105 456,380 -19,527 -4.10 19,761 2.93 0.0088
2025-08-11 2025-06-30 13F NISOURCE COM 65473P105 475,907 -166,327 -25.90 19,198 -25.44 0.0094
2025-05-12 2025-03-31 13F NISOURCE COM 65473P105 642,234 174,746 37.38 25,747 49.83 0.0132
2025-02-12 2024-12-31 13F NISOURCE COM 65473P105 467,488 46,452 11.03 17,185 17.80 0.0102
2024-11-12 2024-09-30 13F NISOURCE COM 65473P105 421,036 63,563 17.78 14,589 41.66 0.0084
2024-08-12 2024-06-30 13F NISOURCE COM 65473P105 357,473 167,048 87.72 10,299 95.52 0.0066
2024-05-10 2024-03-31 13F NISOURCE COM 65473P105 190,425 1,581 0.84 5,267 5.07 0.0035
2024-02-09 2023-12-31 13F NISOURCE COM 65473P105 188,844 -15,214 -7.46 5,014 -0.46 0.0035
2023-12-06 2023-09-30 13F/A-1 NISOURCE COM 65473P105 204,058 -43,872 -17.70 5,036 -25.72 0.0038
2023-11-09 2023-09-30 13F NISOURCE COM 65473P105 204,058 -43,872 5,036 0.0015
2023-08-10 2023-06-30 13F NISOURCE COM 65473P105 247,930 -41,632 -14.38 6,781 -16.25 0.0044
2023-05-11 2023-03-31 13F NISOURCE COM 65473P105 289,562 -92,035 -24.12 8,096 -22.62 0.0057
2023-02-09 2022-12-31 13F NISOURCE COM 65473P105 381,597 -59,885 -13.56 10,463 -5.93 0.0083
2022-11-10 2022-09-30 13F NISOURCE COM 65473P105 441,482 -48,102 -9.83 11,122 -22.97 0.0080
2022-08-10 2022-06-30 13F NISOURCE COM 65473P105 489,584 43,605 9.78 14,438 1.81 0.0107
2022-05-12 2022-03-31 13F NISOURCE COM 65473P105 445,979 -229,917 -34.02 14,182 -24.01 0.0086
2022-02-10 2021-12-31 13F NISOURCE COM 65473P105 675,896 -2,562 -0.38 18,662 13.52 0.0100
2021-11-10 2021-09-30 13F NISOURCE COM 65473P105 678,458 318,425 88.44 16,439 86.36 0.0097
2021-08-10 2021-06-30 13F NISOURCE COM 65473P105 360,033 13,170 3.80 8,821 5.48 0.0053
2021-05-13 2021-03-31 13F NISOURCE COM 65473P105 346,863 12,080 3.61 8,363 8.89 0.0054
2021-02-11 2020-12-31 13F NISOURCE COM 65473P105 334,783 12,019 3.72 7,680 8.15 0.0045
2020-11-12 2020-09-30 13F NISOURCE COM 65473P105 322,764 104,985 48.21 7,101 43.40 0.0046
2020-08-12 2020-06-30 13F NISOURCE COM 65473P105 217,779 -6,587 -2.94 4,952 -11.60 0.0039
2020-05-12 2020-03-31 13F NISOURCE COM 65473P105 224,366 -109,805 -32.86 5,602 -39.79 0.0051
2020-02-12 2019-12-31 13F NISOURCE COM 65473P105 334,171 177,060 112.70 9,304 97.92 0.0067
2019-11-08 2019-09-30 13F NISOURCE COM 65473P105 157,111 -35,172 -18.29 4,701 -15.11 0.0037
2019-08-12 2019-06-30 13F NISOURCE COM 65473P105 192,283 64,033 49.93 5,538 50.65 0.0045
2019-05-13 2019-03-31 13F NISOURCE COM 65473P105 128,250 56,209 78.02 3,676 101.20 0.0035
2019-02-12 2018-12-31 13F NISOURCE COM 65473P105 72,041 23,391 48.08 1,827 50.74 0.0019
2018-11-13 2018-09-30 13F NISOURCE COM 65473P105 48,650 -8,792 -15.31 1,212 -19.79 0.0011
2018-08-10 2018-06-30 13F NISOURCE COM 65473P105 57,442 -18,713 -24.57 1,511 -17.02 0.0014
2018-05-11 2018-03-31 13F NISOURCE COM 65473P105 76,155 -107,127 -58.45 1,821 -61.30 0.0015
2018-02-12 2017-12-31 13F NISOURCE COM 65473P105 183,282 -2,983 -1.60 4,705 -1.30 0.0038
2017-11-13 2017-09-30 13F NISOURCE COM 65473P105 186,265 36,280 24.19 4,767 25.35 0.0039
2017-08-11 2017-06-30 13F NISOURCE COM 65473P105 149,985 -350,511 -70.03 3,803 -68.06 0.0034
2017-05-12 2017-03-31 13F NISOURCE COM 65473P105 500,496 343,638 219.08 11,908 242.87 0.0106
2017-02-10 2016-12-31 13F NISOURCE COM 65473P105 156,858 -76,657 -32.83 3,473 -38.31 0.0031
2016-11-10 2016-09-30 13F NISOURCE COM 65473P105 233,515 -220,460 -48.56 5,630 -53.24 0.0053
2016-08-12 2016-06-30 13F NISOURCE COM 65473P105 453,975 -166,337 -26.82 12,040 -17.62 0.0123
2016-05-13 2016-03-31 13F NISOURCE COM 65473P105 620,312 -1,193,312 -65.80 14,615 -58.69 0.0164
2016-02-12 2015-12-31 13F NISOURCE COM 65473P105 1,813,624 -2,042,984 -52.97 35,382 -50.54 0.0353
2015-11-13 2015-09-30 13F NISOURCE COM 65473P105 3,856,608 3,820,540 10,592.60 71,540 11,783.72 0.0670
2015-08-13 2015-06-30 13F NISOURCE EX DISTRIB WI 65473P113 36,068 -132,958 -78.66 602 -91.94 0.0005
2015-08-13 2015-06-30 13F NISOURCE COM 65473P105 97,951 -71,075 4,465 0.0040
2015-05-14 2015-03-31 13F NISOURCE COM 65473P105 169,026 241 0.14 7,465 4.26 0.0072
2015-02-17 2014-12-31 13F NISOURCE COM 65473P105 168,785 70,247 71.29 7,160 77.36 0.0064
2014-11-14 2014-09-30 13F NISOURCE COM 65473P105 98,538 -10,891 -9.95 4,037 -6.23 0.0035
2014-08-14 2014-06-30 13F NISOURCE COM 65473P105 109,429 -30,478 -21.78 4,305 -13.42 0.0041
2014-05-15 2014-03-31 13F NISOURCE COM 65473P105 139,907 10,256 7.91 4,972 16.63 0.0051
2014-02-14 2013-12-31 13F NISOURCE COM 65473P105 129,651 -110,520 -46.02 4,263 -42.54 0.0039
2013-11-14 2013-09-30 13F NISOURCE COM 65473P105 240,171 -198,620 -45.27 7,419 -40.96 0.0069
2013-08-14 2013-06-30 13F NISOURCE COM 65473P105 438,791 438,791 12,566 0.0124
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2019-08-12 2019-06-30 13F NISOURCE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-13 2019-03-31 13F NISOURCE COM Call 500 -37.50 14 -30.00 n/a n/a n/a
2019-02-12 2018-12-31 13F NISOURCE COM Call 800 -38.46 20 -37.50 n/a n/a n/a
2018-11-13 2018-09-30 13F NISOURCE COM Call 1,300 -77.59 32 -78.95 n/a n/a n/a
2018-08-10 2018-06-30 13F NISOURCE COM Call 5,800 28.89 152 40.74 n/a n/a n/a
2018-05-11 2018-03-31 13F NISOURCE COM Call 4,500 -96.78 108 -96.99 n/a n/a n/a
2018-02-12 2017-12-31 13F NISOURCE COM Call 139,800 61.62 3,588 62.06 n/a n/a n/a
2017-11-13 2017-09-30 13F NISOURCE COM Call 86,500 -16.67 2,214 -15.88 n/a n/a n/a
2017-08-11 2017-06-30 13F NISOURCE COM Call 103,800 4,618.18 2,632 4,961.54 n/a n/a n/a
2017-05-12 2017-03-31 13F NISOURCE COM Call 2,200 83.33 52 92.59 n/a n/a n/a
2017-02-10 2016-12-31 13F NISOURCE COM Call 1,200 20.00 27 12.50 n/a n/a n/a
2016-11-10 2016-09-30 13F NISOURCE COM Call 1,000 -16.67 24 -25.00 n/a n/a n/a
2016-08-12 2016-06-30 13F NISOURCE COM Call 1,200 300.00 32 357.14 n/a n/a n/a
2016-05-13 2016-03-31 13F NISOURCE COM Call 300 -57.14 7 -50.00 n/a n/a n/a
2016-02-12 2015-12-31 13F NISOURCE COM Call 700 -74.07 14 -72.00 n/a n/a n/a
2015-11-13 2015-09-30 13F NISOURCE COM Call 2,700 -95.28 50 -98.08 n/a n/a n/a
2015-08-13 2015-06-30 13F NISOURCE COM Call 57,200 -82.21 2,608 -81.64 n/a n/a n/a
2015-05-14 2015-03-31 13F NISOURCE COM Call 321,600 -20.30 14,202 -17.03 n/a n/a n/a
2015-02-17 2014-12-31 13F NISOURCE COM Call 403,500 39.14 17,116 44.03 n/a n/a n/a
2014-11-14 2014-09-30 13F NISOURCE COM Call 290,000 17.41 11,884 22.30 n/a n/a n/a
2014-08-14 2014-06-30 13F NISOURCE COM Call 247,000 0.00 9,717 10.72 n/a n/a n/a
2014-05-15 2014-03-31 13F NISOURCE COM Call 247,000 45.29 8,776 56.99 n/a n/a n/a
2014-02-14 2013-12-31 13F NISOURCE COM Call 170,000 -79.26 5,590 -77.92 n/a n/a n/a
2013-11-14 2013-09-30 13F NISOURCE COM Call 819,600 -10.87 25,317 -3.87 n/a n/a n/a
2013-08-14 2013-06-30 13F NISOURCE COM Call 919,600 26,337 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2019-02-12 2018-12-31 13F NISOURCE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-13 2018-09-30 13F NISOURCE COM Put 500 0.00 12 -7.69 n/a n/a n/a
2018-08-10 2018-06-30 13F NISOURCE COM Put 500 13 n/a n/a n/a
2018-05-11 2018-03-31 13F NISOURCE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-12 2017-12-31 13F NISOURCE COM Put 400 100.00 10 100.00 n/a n/a n/a
2017-11-13 2017-09-30 13F NISOURCE COM Put 200 5 n/a n/a n/a
2017-02-10 2016-12-31 13F NISOURCE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-11-10 2016-09-30 13F NISOURCE COM Put 1,100 27 n/a n/a n/a
2015-11-13 2015-09-30 13F NISOURCE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-08-13 2015-06-30 13F NISOURCE COM Put 100 5 n/a n/a n/a
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.