Security Snapshot

NISOURCE INC. - COMMON STOCK (NI) Institutional Ownership

CUSIP: 65473P105

13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026

13F reference period

Q3 2026

Institutions Reporting

571

Shares (Excl. Options)

230.97MFull value: 230,973,079 · shares · 30 Sep 2026

Price

$39.00

The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.

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Security type / class
Equity / COMMON STOCK
Symbol
NI on NYSE
All holders as of 30 Sep 2026
Q3 2026
Total 13F shares
230,973,079
Latest holder snapshot 5 signals
Total 13F value
$9,039,722,153
Portfolio coverage rank
0.01%
Share change
+3,320,321
Value change
+$99,440,511
Number of holders
571
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
482,154,903
SEC-reported price per share
$41.23
Insider filing price
$41.23
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • NI - NISOURCE INC. - COMMON STOCK is tracked under CUSIP 65473P105.
  • 571 institutions reported positions in Q3 2026.
  • 4 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 917 to 571 between Q2 2026 and Q3 2026.
  • SEC-reported value moved from
    $21.96BFull value: $21,955,235,056 · USD · 30 Jun 2026
    to
    $9.04BFull value: $9,039,722,153 · USD · 30 Sep 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 571 institutions filings for Q3 2026.

Open SEC evidence

Security key

65473P105

13F reference period

Q3 2026

13F holders

571

13D/G owners

4

CIK / CUSIP context first

Open Q3 2026 holders NI full holder history NISOURCE INC. SEC filings NISOURCE INC. company facts NISOURCE INC. insider transactions

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
4
Security
NI
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
VANGUARD CAPITAL MANAGEMENT LLC 7.6% $1,689,832,028 36,215,860 Vanguard Capital Management 31 Mar 2026
T. Rowe Price Investment Management, Inc. 6.2% -39% $1,421,440,870 -$971,828,374 29,893,604 -41% T. Rowe Price Investment Management, Inc. 30 Jun 2026
VANGUARD PORTFOLIO MANAGEMENT LLC 5.6% $1,261,630,875 27,038,810 Vanguard Portfolio Management 31 Mar 2026
STATE STREET CORP 5% +2% $942,878,858 +$34,865,467 23,762,068 +3.8% STATE STREET CORPORATION 31 Mar 2025
As of 30 Sep 2026, 571 institutional investors reported holding
230.97MFull value: 230,973,079 · shares · 30 Sep 2026
shares of NISOURCE INC. - COMMON STOCK (NI). This represents 48% of the company’s total
482.15MFull value: 482,154,903 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
36%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
VANGUARD CAPITAL MANAGEMENT LLC 6.5% 31,490,161 +0.44% 0.03% $1,228,116,279
STATE STREET CORP 5.9% 28,217,394 +2.2% 0.03% $1,100,478,366
VANGUARD PORTFOLIO MANAGEMENT LLC 5.6% 26,767,285 -1.1% 0.05% $1,043,924,115
GEODE CAPITAL MANAGEMENT, LLC 2.7% 13,244,630 +2.5% 0.03% $514,537,624
Invesco Ltd. 1.8% 8,713,496 +12% 0.03% $339,826,335
DEUTSCHE BANK AG\ 1.7% 8,425,522 -30% 0.09% $328,595,358
MORGAN STANLEY 1.2% 5,581,308 -0.04% 0.01% $217,671,147
Newport Trust Company, LLC 1.1% 5,292,942 -2.3% 0.56% $206,424,738
FRANKLIN TEMPLETON INC 1.1% 5,284,048 -11% 0.05% $239,314,534
Qube Research & Technologies Ltd 1.1% 5,111,026 +105% 0.2% $199,330,014
REAVES W H & CO INC 0.97% 4,666,458 +14% 3.3% $181,991,862
Pictet Asset Management Holding SA 0.93% 4,507,633 -9.9% 0.17% $175,797,687
DUFF & PHELPS INVESTMENT MANAGEMENT CO 0.64% 3,079,887 -0.56% 1.2% $120,115,593
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.62% 2,976,843 +60% 0.04% $116,096,877
ANTIPODES PARTNERS Ltd 0.62% 2,972,968 +37% 2.1% $115,945,752
VANGUARD FIDUCIARY TRUST CO 0.56% 2,707,362 +0.54% 0.02% $105,587,118
DIMENSIONAL FUND ADVISORS LP 0.55% 2,660,866 +2% 0.02% $103,781,173
ONTARIO TEACHERS PENSION PLAN BOARD 0.44% 2,104,373 +20% 0.73% $82,070,547
Amundi 0.38% 1,821,475 +1.8% 0.02% $71,037,525
MIZUHO MARKETS AMERICAS LLC 0.33% 1,599,400 -20% 1% $62,376,600
TD ASSET MANAGEMENT INC 0.33% 1,570,897 +8.7% 0.05% $61,767,670
Bahl & Gaynor LLC 0.32% 1,541,934 +3.1% 0.29% $60,135,426
CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC 0.32% 1,537,101 0.92% $59,946,939
FIRST TRUST ADVISORS LP 0.31% 1,477,224 +16% 0.03% $57,611,740
AVIVA PLC 0.28% 1,359,144 -12% 0.08% $53,006,616

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
51
Headline period
Q3 2026
Rows shown
1-25 of 51
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 230,973,079 $9,039,722,153 +$99,440,511 $39.00 571
2026 Q2 461,735,991 $21,955,235,056 +$301,780,023 $47.55 917
2026 Q1 454,966,415 $21,219,627,523 -$303,570,096 $46.66 885
2025 Q4 462,127,166 $19,303,944,955 +$526,880,537 $41.76 833
2025 Q3 445,041,864 $19,267,909,595 -$330,290,861 $43.30 780
2025 Q2 453,755,836 $18,300,023,846 +$794,925,372 $40.34 769
2025 Q1 436,550,236 $17,498,639,030 -$456,223,743 $40.09 789
2024 Q4 448,827,238 $16,495,974,743 +$96,595,929 $36.76 732
2024 Q3 444,311,996 $15,391,442,909 +$65,132,284 $34.65 681
2024 Q2 437,783,138 $12,614,468,592 +$398,849,790 $28.81 632
2024 Q1 424,892,296 $11,753,100,968 +$433,077,164 $27.66 627
2023 Q4 409,274,874 $10,867,342,299 +$444,524,255 $26.55 604
2023 Q3 392,393,601 $9,685,748,668 -$28,317,831 $24.68 576
2023 Q2 390,585,909 $10,683,907,366 +$72,820,216 $27.35 557
2023 Q1 387,915,509 $10,844,196,544 +$165,679,965 $27.96 583
2022 Q4 383,078,285 $10,505,138,613 +$94,506,776 $27.42 570
2022 Q3 379,616,029 $9,570,408,157 -$222,507,448 $25.19 529
2022 Q2 387,244,348 $11,418,214,995 +$266,987,381 $29.49 519
2022 Q1 379,314,020 $12,053,461,847 +$90,310,203 $31.80 518
2021 Q4 376,695,988 $10,398,229,647 -$43,474 $27.61 503
2021 Q3 375,497,451 $9,095,816,521 +$170,124,039 $24.23 476
2021 Q2 368,276,934 $9,021,296,159 +$84,292,387 $24.50 495
2021 Q1 364,383,422 $8,777,443,007 +$174,201,294 $24.11 472
2020 Q4 357,585,284 $8,197,352,477 -$53,320,876 $22.94 444
2020 Q3 360,596,900 $7,931,601,787 +$219,270,659 $22.00 445
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