Vault-13

ALLIANT ENERGY CORP LNT 3.875 03.15.26

NOTE 3.875% 3/1 · US DOMESTIC · CUSIP 018802AC2

60 institutional holders +1 vs Q3 2025
35,338,45535.3m shares reported held*
$599.2mreported value*
8 new 12 added 19 reduced 7 sold out net sold ≈ $3.1m (+4.1m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($2.1m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $17.02.

Trends to Q4 2025

Institutional holders

Managers reporting a position, each quarter

0255075Q1 24: 50Q2 24: 56Q3 24: 59Q4 24: 65Q1 25: 64Q2 25: 63Q3 25: 59Q4 25: 6060Q1 24Q3 24Q1 25Q3 25Q4 25
Numbers
QuarterHolders
Q1 202450
Q2 202456
Q3 202459
Q4 202465
Q1 202564
Q2 202563
Q3 202559
Q4 202560

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q2 24: 23 bought or addedQ2 24: 20 cut or sold outQ2 24Q3 24: 21 bought or addedQ3 24: 15 cut or sold outQ4 24: 28 bought or addedQ4 24: 21 cut or sold outQ4 24Q1 25: 28 bought or addedQ1 25: 25 cut or sold outQ2 25: 23 bought or addedQ2 25: 31 cut or sold outQ2 25Q3 25: 21 bought or addedQ3 25: 22 cut or sold outQ4 25: 20 bought or addedQ4 25: 26 cut or sold outQ4 25
Numbers
QuarterBought or addedCut or sold out
Q2 20242320
Q3 20242115
Q4 20242821
Q1 20252825
Q2 20252331
Q3 20252122
Q4 20252026

Biggest buyers

Point72 Asset Management, L.P. Added +32,500,000+32.5m
Brevan Howard Capital Management LP New +20,000,000+20.0m
MOORE CAPITAL MANAGEMENT, LP New +17,500,000+17.5m
Aequim Alternative Investments LP Added +12,325,000+12.3m
CSS LLC/IL Added +5,154,000+5.2m
Walleye Capital LLC Added +5,000,000+5.0m
MIZUHO SECURITIES USA LLC Added +4,160,000+4.2m
GOLDMAN SACHS GROUP INC New +4,000,000+4.0m
CITIGROUP INC Added +2,330,000+2.3m
BlackRock, Inc. Added +1,400,000+1.4m

Biggest sellers

BNP PARIBAS FINANCIAL MARKETS Reduced -24,976,000-25.0m
Magnetar Financial LLC Sold out -21,000,000-21.0m
PIER 88 INVESTMENT PARTNERS LLC Reduced -14,006,000-14.0m
WELLS FARGO & COMPANY/MN Reduced -13,782,000-13.8m
SOROS FUND MANAGEMENT LLC Reduced -12,500,000-12.5m
MORGAN STANLEY Sold out -5,813,000-5.8m
ADVENT CAPITAL MANAGEMENT /DE/ Reduced -3,061,000-3.1m
VICTORY CAPITAL MANAGEMENT INC Reduced -2,409,000-2.4m
JPMORGAN CHASE & CO Reduced -2,222,000-2.2m
BANK OF MONTREAL /CAN/ Sold out -2,012,000-2.0m

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Point72 Asset Management, L.P. 0.13% of their portfolio STAMFORD, CT 77,500,00077.5m $80.6m $80.6m 0.13% Added +32.5m +32,500,000
2 Aequim Alternative Investments LP 1.49% of their portfolio MILL VALLEY, CA 72,325,00072.3m $75.3m $75.3m 1.49% Added +12.3m +12,325,000
3 D. E. Shaw & Co., Inc. 0.04% of their portfolio New York, NY 53,390,00053.4m $55.6m $55.6m 0.04% Reduced -1.5m -1,500,000
4 SOROS FUND MANAGEMENT LLC 0.49% of their portfolio NEW YORK, NY 35,000,00035.0m $36.4m $36.4m 0.49% Reduced -12.5m -12,500,000
5 Universal- Beteiligungs- und Servicegesellschaft mbH 0.05% of their portfolio FRANKFURT AM MAIN, 2M 31,585,00031.6m $33.3m $33.3m 0.05% Unchanged
6 VICTORY CAPITAL MANAGEMENT INC 0.02% of their portfolio San Antonio, TX 29,949,00029.9m $31.2m $31.2m 0.02% Reduced -2.4m -2,409,000
7 MIZUHO SECURITIES USA LLC 0.49% of their portfolio NEW YORK, NY 27,885,00027.9m $29.4m $29.4m 0.49% Added +4.2m +4,160,000
8 Calamos Advisors LLC 0.11% of their portfolio NAPERVILLE, IL 26,107,00026.1m $27.2m $27.2m 0.11% Added +77.0k +77,000
9 LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 25,139,00025.1m $261.8k $261.8k 0.00% Unchanged
10 Brevan Howard Capital Management LP 0.40% of their portfolio ST. HELIER, Y9 20,000,00020.0m $20.9m $20.9m 0.40% New
11 MOORE CAPITAL MANAGEMENT, LP 0.37% of their portfolio NEW YORK, NY 17,500,00017.5m $18.2m $18.2m 0.37% New
12 MARSHALL WACE, LLP 0.02% of their portfolio LONDON, X0 15,000,00015.0m $15.6m $15.6m 0.02% Unchanged
13 Walleye Capital LLC 0.08% of their portfolio NEW YORK, NY 13,500,00013.5m $14.1m $14.1m 0.08% Added +5.0m +5,000,000
14 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 12,800,00012.8m $13.4m $13.4m 0.00% Added +700.0k +700,000
15 Wellesley Asset Management 1.36% of their portfolio PORTSMOUTH, NH 12,455,00012.5m $13.0m $13.0m 1.36% Reduced -1.2m -1,227,000
16 CAPSTONE INVESTMENT ADVISORS, LLC 0.10% of their portfolio NEW YORK, NY 12,000,00012.0m $12.5m $12.5m 0.10% Unchanged
17 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 10,926,00010.9m $11.4m $11.4m 0.00% Reduced -1.3m -1,257,000
18 ADVENT CAPITAL MANAGEMENT /DE/ 0.20% of their portfolio NEW YORK, NY 8,319,0008.3m $8.8m $8.8m 0.20% Reduced -3.1m -3,061,000
19 CITIGROUP INC 0.01% of their portfolio NEW YORK, NY 8,042,0008.0m $8.4m $8.4m 0.01% Added +2.3m +2,330,000
20 CSS LLC/IL 0.45% of their portfolio CHICAGO, IL 7,585,0007.6m $7.9m $7.9m 0.45% Added +5.2m +5,154,000
21 PIER 88 INVESTMENT PARTNERS LLC 1.68% of their portfolio SAN FRANCISCO, CA 7,230,0007.2m $7.5m $7.5m 1.68% Reduced -14.0m -14,006,000
22 BlackRock, Inc. 0.00% of their portfolio New York, NY 7,225,0007.2m $7.5m $7.5m 0.00% Added +1.4m +1,400,000
23 DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.01% of their portfolio FRANKFURT AM MAIN, 2M 7,000,0007.0m $7.3m $7.3m 0.01% Reduced -500.0k -500,000
24 RATIONAL ADVISORS, INC. 0.74% of their portfolio San Juan, PR 6,930,0006.9m $7.2m $7.2m 0.74% Unchanged
25 SSI INVESTMENT MANAGEMENT LLC 0.42% of their portfolio Los Angeles, CA 6,016,0006.0m $6.3m $6.3m 0.42% Unchanged
26 CONNING INC. 0.20% of their portfolio HARTFORD, CT 5,650,0005.7m $5.8m $5.8m 0.20% Unchanged
27 RWC Asset Management LLP 0.29% of their portfolio LONDON, X0 5,607,0005.6m $5.8m $5.8m 0.29% Added +975.0k +975,000
28 ZAZOVE ASSOCIATES LLC 0.45% of their portfolio INCLINE VILLAGE, NV 5,000,0005.0m $5.2m $5.2m 0.45% Unchanged
29 Thrivent Financial for Lutherans 0.01% of their portfolio Minneapolis, MN 4,925,0004.9m $5.2m $5.2m 0.01% Reduced -115.0k -115,000
30 FMR LLC 0.00% of their portfolio BOSTON, MA 4,443,0004.4m $4.6m $4.6m 0.00% Unchanged
31 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 4,000,0004.0m $4.2m $4.2m 0.00% New
32 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 2,712,0002.7m $2.8m $2.8m 0.00% Reduced -25.0m -24,976,000
33 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 2,706,0002.7m $2.8m $2.8m 0.00% Reduced -2.2m -2,222,000
34 Man Group plc 0.00% of their portfolio LONDON, X0 2,250,0002.2m $2.3m $2.3m 0.00% Reduced -400.0k -400,000
35 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 2,035,0002.0m $2.1m $2.1m 0.00% Unchanged
36 SHENKMAN CAPITAL MANAGEMENT INC 0.22% of their portfolio NEW YORK, NY 2,025,0002.0m $2.1m $2.1m 0.22% Reduced -645.0k -645,000
37 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 1,415,0001.4m $1.5m $1.5m 0.00% Unchanged
38 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 957,000957.0k $994.3k $994.3k 0.00% Reduced -177.0k -177,000
39 Cutler Capital Management, LLC 0.29% of their portfolio WORCESTER, MA 935,000935.0k $971.5k $971.5k 0.29% Reduced -30.0k -30,000
40 AEGON USA Investment Management, LLC 0.55% of their portfolio CEDAR RAPIDS, IA 746,000746.0k $775.1k $775.1k 0.55% Unchanged
41 TORONTO DOMINION BANK 0.00% of their portfolio TORONTO, ONTARIO, A6 562,000562.0k $584.5k $584.5k 0.00% Unchanged
42 Jefferies Financial Group Inc. 0.00% of their portfolio NEW YORK, NY 400,000400.0k $415.9k $415.9k 0.00% Added +128.0k +128,000
43 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 214,000214.0k $222.9k $222.9k 0.00% Reduced -86.0k -86,000
44 Central Pacific Bank - Trust Division 0.02% of their portfolio HONOLULU, HI 175,000175.0k $181.8k $181.8k 0.02% Unchanged
45 &PARTNERS 0.00% of their portfolio NASHVILLE, TN 144,000144.0k $149.6k $149.6k 0.00% Reduced -6.0k -6,000
46 Cetera Investment Advisers 0.00% of their portfolio SCHAUMBURG, IL 93,00093.0k $96.6k $96.6k 0.00% Unchanged
47 Capital Investment Advisory Services, LLC 0.00% of their portfolio RALEIGH, NC 51,00051.0k $53.0k $53.0k 0.00% Unchanged
48 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 30,00030.0k $31.0k $31.0k 0.00% Reduced -14.0k -14,000
49 CHOREO, LLC 0.00% of their portfolio ROCKFORD, IL 24,00024.0k $25.3k $25.3k 0.00% Unchanged
50 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 23,00023.0k $23.9k $23.9k 0.00% Added +2.0k +2,000
51 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 22,00022.0k $22.9k $22.9k 0.00% Unchanged
52 MML INVESTORS SERVICES, LLC 0.00% of their portfolio SPRINGFIELD, MA 21,00021.0k $21.8k $21.8k 0.00% New
53 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 19,00019.0k $19.8k $19.8k 0.00% Reduced -13.8m -13,782,000
54 Traub Capital Management LLC 0.01% of their portfolio NEEDHAM, MA 14,00014.0k $14.7k $14.7k 0.01% Unchanged
55 UBS Group AG 0.00% of their portfolio ZURICH, V8 12,00012.0k $12.5k $12.5k 0.00% New
56 Goldstein Advisors, LLC 0.00% of their portfolio Madison, WI 12,00012.0k $12.4k $12.4k 0.00% New
57 NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 0.00% of their portfolio MILWAUKEE, WI 7,0007.0k $7.3k $7.3k 0.00% Unchanged
58 NOMURA HOLDINGS INC 0.00% of their portfolio TOKYO, M0 4,0174.0k $261.1k $261.1k 0.00% New
59 BARTLETT & CO. WEALTH MANAGEMENT LLC 0.00% of their portfolio CINCINNATI, OH 3,0003.0k $3.1k $3.1k 0.00% Unchanged
60 LAFFER TENGLER INVESTMENTS, INC. 0.39% of their portfolio Scottsdale, AZ 2,4382.4k $2.6m $2.6m 0.39% New