Vault-13

ALLIANT ENERGY CORP LNT 3.875 03.15.26

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

59 institutional holders -4 vs Q2 2025
31,245,00031.2m shares reported held*
$621.0mreported value*
5 new 16 added 14 reduced 8 sold out net bought ≈ $367.9k (-8.5m 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 ($2.2m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $19.94.

Trends to Q3 2025

Institutional holders

Managers reporting a position, each quarter

0255075Q1 24: 50Q2 24: 56Q3 24: 59Q4 24: 65Q1 25: 64Q2 25: 63Q3 25: 5959Q1 24Q3 24Q1 25Q3 25
Numbers
QuarterHolders
Q1 202450
Q2 202456
Q3 202459
Q4 202465
Q1 202564
Q2 202563
Q3 202559

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 outQ3 24Q4 24: 28 bought or addedQ4 24: 21 cut or sold outQ4 24Q1 25: 28 bought or addedQ1 25: 25 cut or sold outQ1 25Q2 25: 23 bought or addedQ2 25: 31 cut or sold outQ2 25Q3 25: 21 bought or addedQ3 25: 22 cut or sold outQ3 25
Numbers
QuarterBought or addedCut or sold out
Q2 20242320
Q3 20242115
Q4 20242821
Q1 20252825
Q2 20252331
Q3 20252122

Biggest buyers

D. E. Shaw & Co., Inc. Added +43,200,000+43.2m
Magnetar Financial LLC Added +11,000,000+11.0m
Universal- Beteiligungs- und Servicegesellschaft mbH Added +10,000,000+10.0m
WELLS FARGO & COMPANY/MN Added +9,127,000+9.1m
Point72 Asset Management, L.P. Added +5,000,000+5.0m
JPMORGAN CHASE & CO New +4,928,000+4.9m
RWC Asset Management LLP New +4,632,000+4.6m
MORGAN STANLEY Added +2,500,000+2.5m
CSS LLC/IL Added +2,372,000+2.4m
CITIGROUP INC Added +1,858,000+1.9m

Biggest sellers

SOROS FUND MANAGEMENT LLC Reduced -38,500,000-38.5m
LAZARD ASSET MANAGEMENT LLC Reduced -14,130,000-14.1m
BNP PARIBAS FINANCIAL MARKETS Reduced -6,389,000-6.4m
INCOME RESEARCH & MANAGEMENT Sold out -5,509,000-5.5m
BARCLAYS PLC Reduced -5,218,000-5.2m
MARSHALL WACE, LLP Reduced -5,000,000-5.0m
ARISTEIA CAPITAL, L.L.C. Sold out -4,000,000-4.0m
CAMDEN ASSET MANAGEMENT L P /CA Sold out -3,750,000-3.8m
TORONTO DOMINION BANK Reduced -3,700,000-3.7m
Parallax Volatility Advisers, L.P. Sold out -3,521,000-3.5m

Holders, Q3 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Aequim Alternative Investments LP 1.44% of their portfolio MILL VALLEY, CA 60,000,00060.0m $64.7m $64.7m 1.44% Unchanged
2 D. E. Shaw & Co., Inc. 0.05% of their portfolio New York, NY 54,890,00054.9m $59.1m $59.1m 0.05% Added +43.2m +43,200,000
3 SOROS FUND MANAGEMENT LLC 0.81% of their portfolio NEW YORK, NY 47,500,00047.5m $51.2m $51.2m 0.81% Reduced -38.5m -38,500,000
4 Point72 Asset Management, L.P. 0.11% of their portfolio STAMFORD, CT 45,000,00045.0m $48.5m $48.5m 0.11% Added +5.0m +5,000,000
5 VICTORY CAPITAL MANAGEMENT INC 0.02% of their portfolio San Antonio, TX 32,358,00032.4m $34.8m $34.8m 0.02% Reduced -539.0k -539,000
6 Universal- Beteiligungs- und Servicegesellschaft mbH 0.06% of their portfolio FRANKFURT AM MAIN, 2M 31,585,00031.6m $34.1m $34.1m 0.06% Added +10.0m +10,000,000
7 BNP PARIBAS FINANCIAL MARKETS 0.02% of their portfolio PARIS, I0 27,688,00027.7m $29.8m $29.8m 0.02% Reduced -6.4m -6,389,000
8 Calamos Advisors LLC 0.11% of their portfolio NAPERVILLE, IL 26,030,00026.0m $28.0m $28.0m 0.11% Unchanged
9 LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 25,139,00025.1m $271.0k $271.0k 0.00% Reduced -14.1m -14,130,000
10 MIZUHO SECURITIES USA LLC 0.51% of their portfolio NEW YORK, NY 23,725,00023.7m $25.1m $25.1m 0.51% Added +473.0k +473,000
11 PIER 88 INVESTMENT PARTNERS LLC 4.28% of their portfolio SAN FRANCISCO, CA 21,236,00021.2m $22.8m $22.8m 4.28% Added +300.0k +300,000
12 Magnetar Financial LLC 0.14% of their portfolio EVANSTON, IL 21,000,00021.0m $22.6m $22.6m 0.14% Added +11.0m +11,000,000
13 MARSHALL WACE, LLP 0.02% of their portfolio LONDON, X0 15,000,00015.0m $16.2m $16.2m 0.02% Reduced -5.0m -5,000,000
14 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 13,801,00013.8m $14.8m $14.8m 0.00% Added +9.1m +9,127,000
15 Wellesley Asset Management 1.47% of their portfolio PORTSMOUTH, NH 13,682,00013.7m $14.7m $14.7m 1.47% Reduced -813.0k -813,000
16 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 12,183,00012.2m $13.1m $13.1m 0.00% Reduced -351.0k -351,000
17 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 12,100,00012.1m $13.1m $13.1m 0.00% Added +500.0k +500,000
18 CAPSTONE INVESTMENT ADVISORS, LLC 0.11% of their portfolio NEW YORK, NY 12,000,00012.0m $12.9m $12.9m 0.11% Unchanged
19 ADVENT CAPITAL MANAGEMENT /DE/ 0.28% of their portfolio NEW YORK, NY 11,380,00011.4m $12.3m $12.3m 0.28% Reduced -300.0k -300,000
20 Walleye Capital LLC 0.07% of their portfolio NEW YORK, NY 8,500,0008.5m $9.2m $9.2m 0.07% Unchanged
21 DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.01% of their portfolio FRANKFURT AM MAIN, 2M 7,500,0007.5m $8.1m $8.1m 0.01% Unchanged
22 RATIONAL ADVISORS, INC. 0.74% of their portfolio San Juan, PR 6,930,0006.9m $7.5m $7.5m 0.74% Unchanged
23 SSI INVESTMENT MANAGEMENT LLC 0.44% of their portfolio Los Angeles, CA 6,016,0006.0m $6.5m $6.5m 0.44% Unchanged
24 BlackRock, Inc. 0.00% of their portfolio New York, NY 5,825,0005.8m $6.3m $6.3m 0.00% Added +300.0k +300,000
25 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 5,813,0005.8m $6.3m $6.3m 0.00% Added +2.5m +2,500,000
26 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 5,712,0005.7m $6.1m $6.1m 0.00% Added +1.9m +1,858,000
27 CONNING INC. 0.20% of their portfolio HARTFORD, CT 5,650,0005.7m $6.1m $6.1m 0.20% Unchanged
28 Thrivent Financial for Lutherans 0.01% of their portfolio Minneapolis, MN 5,040,0005.0m $5.4m $5.4m 0.01% Unchanged
29 ZAZOVE ASSOCIATES LLC 0.49% of their portfolio INCLINE VILLAGE, NV 5,000,0005.0m $5.4m $5.4m 0.49% Unchanged
30 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 4,928,0004.9m $5.2m $5.2m 0.00% New
31 RWC Asset Management LLP 0.24% of their portfolio LONDON, X0 4,632,0004.6m $5.0m $5.0m 0.24% New
32 FMR LLC 0.00% of their portfolio BOSTON, MA 4,443,0004.4m $4.8m $4.8m 0.00% Reduced -787.0k -787,000
33 SHENKMAN CAPITAL MANAGEMENT INC 0.28% of their portfolio NEW YORK, NY 2,670,0002.7m $2.9m $2.9m 0.28% Unchanged
34 Man Group plc 0.01% of their portfolio LONDON, X0 2,650,0002.6m $2.9m $2.9m 0.01% Unchanged
35 CSS LLC/IL 0.16% of their portfolio CHICAGO, IL 2,431,0002.4m $2.6m $2.6m 0.16% Added +2.4m +2,372,000
36 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 2,035,0002.0m $2.2m $2.2m 0.00% Unchanged
37 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 2,012,0002.0m $2.2m $2.2m 0.00% Added +12.0k +12,000
38 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 1,471,0001.5m $1.6m $1.6m 0.00% Reduced -5.2m -5,218,000
39 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 1,415,0001.4m $1.5m $1.5m 0.00% Unchanged
40 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 1,134,0001.1m $1.2m $1.2m 0.00% Reduced -80.0k -80,000
41 Cutler Capital Management, LLC 0.33% of their portfolio WORCESTER, MA 965,000965.0k $1.0m $1.0m 0.33% Unchanged
42 AEGON USA Investment Management, LLC 0.55% of their portfolio CEDAR RAPIDS, IA 746,000746.0k $802.3k $802.3k 0.55% Unchanged
43 TORONTO DOMINION BANK 0.00% of their portfolio TORONTO, ONTARIO, A6 562,000562.0k $603.6k $603.6k 0.00% Reduced -3.7m -3,700,000
44 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 300,000300.0k $322.3k $322.3k 0.00% Unchanged
45 Jefferies Financial Group Inc. 0.00% of their portfolio NEW YORK, NY 272,000272.0k $294.5k $294.5k 0.00% Added +196.0k +196,000
46 Central Pacific Bank - Trust Division 0.02% of their portfolio HONOLULU, HI 175,000175.0k $188.2k $188.2k 0.02% Unchanged
47 &PARTNERS 0.00% of their portfolio NASHVILLE, TN 150,000150.0k $161.3k $161.3k 0.00% Added +7.0k +7,000
48 Cetera Investment Advisers 0.00% of their portfolio SCHAUMBURG, IL 93,00093.0k $100.0k $100.0k 0.00% Reduced -20.0k -20,000
49 Capital Investment Advisory Services, LLC 0.00% of their portfolio RALEIGH, NC 51,00051.0k $54.9k $54.9k 0.00% Unchanged
50 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 44,00044.0k $47.6k $47.6k 0.00% Added +27.0k +27,000
51 LAFFER TENGLER INVESTMENTS, INC. 0.42% of their portfolio Scottsdale, AZ 24,48024.5k $2.6m $2.6m 0.42% New
52 CHOREO, LLC 0.00% of their portfolio ROCKFORD, IL 24,00024.0k $25.9k $25.9k 0.00% Unchanged
53 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 22,00022.0k $23.7k $23.7k 0.00% Reduced -7.0k -7,000
54 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 21,00021.0k $22.6k $22.6k 0.00% Unchanged
55 FORESIGHT CAPITAL MANAGEMENT ADVISORS, INC. 0.01% of their portfolio SALINE, MI 16,00016.0k $17.3k $17.3k 0.01% New
56 Traub Capital Management LLC 0.01% of their portfolio NEEDHAM, MA 14,00014.0k $15.1k $15.1k 0.01% New
57 NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 0.00% of their portfolio MILWAUKEE, WI 7,0007.0k $7.5k $7.5k 0.00% Unchanged
58 BARTLETT & CO. WEALTH MANAGEMENT LLC 0.00% of their portfolio CINCINNATI, OH 3,0003.0k $3.2k $3.2k 0.00% Unchanged
59 COMERICA BANK 0.00% of their portfolio DALLAS, TX 2,0002.0k $2.2k $2.2k 0.00% Unchanged