78 filings
S-3ASR
Northern States Power Co
18 Apr 24
Automatic shelf registration
4:24pm
424B2
Northern States Power Co
23 Feb 24
Prospectus for primary offering
12:47pm
FWP
Northern States Power Co
22 Feb 24
Free writing prospectus
4:08pm
424B5
Northern States Power Co
22 Feb 24
Prospectus supplement for primary offering
8:44am
424B2
Northern States Power Co
2 May 23
Prospectus for primary offering
2:02pm
FWP
yhcoqywoaoaap4hve1k
1 May 23
Free writing prospectus
4:15pm
424B5
67o0i4jrv71x
1 May 23
Prospectus supplement for primary offering
8:42am
424B2
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3 May 22
Prospectus for primary offering
12:43pm
FWP
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2 May 22
Free writing prospectus
4:12pm
424B5
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2 May 22
Prospectus supplement for primary offering
8:57am
S-3ASR
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22 Apr 21
Automatic shelf registration
5:27pm
424B2
8apqa
24 Mar 21
Prospectus for primary offering
2:38pm
FWP
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23 Mar 21
Free writing prospectus
5:15pm
424B5
674v8 sz0p7zsrhzw
23 Mar 21
Prospectus supplement for primary offering
8:45am
424B2
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9 Jun 20
Prospectus for primary offering
2:47pm
FWP
i7ujjl53mlztsl6
8 Jun 20
Free writing prospectus
5:19pm
424B5
lng2wtlsfqmb
8 Jun 20
Prospectus supplement for primary offering
8:56am
424B2
2aefnunsr jxr4e0
4 Sep 19
Prospectus for primary offering
1:06pm
FWP
fnugpa
3 Sep 19
Free writing prospectus
4:28pm
424B5
bk3g5hi 2vwr0p
3 Sep 19
Prospectus supplement for primary offering
8:37am