NPORT-P
false
0000732697
XXXXXXXX
S000019983
C000056041
C000074788
ULTRA SERIES FUND
811-04815
0000732697
254900JPNAJ16VJV5X45
550 SCIENCE DRIVE
MADISON
53711
608-274-0300
Mid Cap Fund
S000019983
2549003E389BDUF7PS08
2026-12-31
2026-06-30
N
104117301.40
2111075.84
102006225.56
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
N
Amphenol Corp
549300D3L3G0R4U4VT04
Amphenol Corp.
032095101
32031.00000000
NS
USD
5647705.92000000
5.536628660647
Long
EC
CORP
US
N
1
N
N
N
Asbury Automotive Group Inc
549300JH4DTA7U42GL91
Asbury Automotive Group, Inc.
043436104
8624.00000000
NS
USD
1734113.92000000
1.700007926457
Long
EC
CORP
US
N
1
N
N
N
Bentley Systems Inc
549300WVEHPGE0Z56F71
Bentley Systems, Inc.
08265T208
40387.00000000
NS
USD
1207167.43000000
1.183425250148
Long
EC
CORP
US
N
1
N
N
N
W R Berkley Corp
SQOAGCLKBDWNVYV1OV80
W.R. Berkley Corp.
084423102
41458.00000000
NS
USD
2924032.74000000
2.866523806706
Long
EC
CORP
US
N
1
N
N
N
Bio-Techne Corp
54930073RLKQ51TILZ35
Bio-Techne Corp.
09073M104
29053.00000000
NS
USD
2052594.45000000
2.012224684063
Long
EC
CORP
US
N
1
N
N
N
Brookfield Asset Management Ltd
549300CZ84WPNJZKY093
Brookfield Asset Management Ltd.
113004105
43531.00000000
NS
USD
1952365.35000000
1.913966857691
Long
EC
CORP
CA
N
1
N
N
N
Brown & Brown Inc
549300PC8KTJ71XKFY89
Brown & Brown, Inc.
115236101
59774.00000000
NS
USD
3834502.10000000
3.759086348846
Long
EC
CORP
US
N
1
N
N
N
CDW Corp/DE
9845001B052ABF0B6755
CDW Corp.
12514G108
23051.00000000
NS
USD
3241892.64000000
3.178132140663
Long
EC
CORP
US
N
1
N
N
N
Carlisle Cos Inc
XR64VGX1ZPX6G7ZN7Z11
Carlisle Cos., Inc.
142339100
11387.00000000
NS
USD
4130634.25000000
4.049394267186
Long
EC
CORP
US
N
1
N
N
N
Copart Inc
549300KVYX3JWMYEHU61
Copart, Inc.
217204106
88431.00000000
NS
USD
2492869.89000000
2.443840928643
Long
EC
CORP
US
N
1
N
N
N
Cullen/Frost Bankers Inc
529900V2E9G9AY665O34
Cullen/Frost Bankers, Inc.
229899109
11324.00000000
NS
USD
1749784.48000000
1.715370282935
Long
EC
CORP
US
N
1
N
N
N
Expeditors International of Washington Inc
984500B055A804AB6E40
Expeditors International of Washington, Inc.
302130109
12227.00000000
NS
USD
1992756.46000000
1.953563568360
Long
EC
CORP
US
N
1
N
N
N
Floor & Decor Holdings Inc
549300M5FR3N688XGQ36
Floor & Decor Holdings, Inc.
339750101
38185.00000000
NS
USD
2266661.60000000
2.222081630367
Long
EC
CORP
US
N
1
N
N
N
Gartner Inc
PP55B5R38BFB8O8HH686
Gartner, Inc.
366651107
12571.00000000
NS
USD
1629453.02000000
1.597405463298
Long
EC
CORP
US
N
1
N
N
N
Glacier Bancorp Inc
549300SMJAUKZB5D7V74
Glacier Bancorp, Inc.
37637Q105
32183.00000000
NS
USD
1659999.14000000
1.627350812057
Long
EC
CORP
US
N
1
N
N
N
Graco Inc
4T5VJ4S81BRT6Q7GGT78
Graco, Inc.
384109104
17670.00000000
NS
USD
1336028.70000000
1.309752118231
Long
EC
CORP
US
N
1
N
N
N
Kinsale Capital Group Inc
529900QTUQHNZ6HOA508
Kinsale Capital Group, Inc.
49714P108
3732.00000000
NS
USD
1230850.92000000
1.206642940901
Long
EC
CORP
US
N
1
N
N
N
Labcorp Holdings Inc
N/A
Labcorp Holdings, Inc.
504922105
12592.00000000
NS
USD
3525760.00000000
3.456416488938
Long
EC
CORP
US
N
1
N
N
N
Liberty Media Corp-Liberty Formula One
N/A
Liberty Media Corp.-Liberty Formula One
531229755
38860.00000000
NS
USD
3697140.40000000
3.624426234480
Long
EC
CORP
US
N
1
N
N
N
Lithia Motors Inc
SE8N1EZEHPZQBCBVKD53
Lithia Motors, Inc.
536797103
6511.00000000
NS
USD
1891380.39000000
1.854181330224
Long
EC
CORP
US
N
1
N
N
N
MKS Inc
549300KEQATBHAGVF505
MKS, Inc.
55306N104
8592.00000000
NS
USD
3821721.60000000
3.746557211600
Long
EC
CORP
US
N
1
N
N
N
MSA Safety Inc
529900DVA3258XK11O39
MSA Safety, Inc.
553498106
18421.00000000
NS
USD
3215938.18000000
3.152688144615
Long
EC
CORP
US
N
1
N
N
N
Medpace Holdings Inc
549300H8TYEUVTW14A54
Medpace Holdings, Inc.
58506Q109
6655.00000000
NS
USD
3524421.45000000
3.455104265108
Long
EC
CORP
US
N
1
N
N
N
Moelis & Co
549300891QNU7VTQUR83
Moelis & Co.
60786M105
45139.00000000
NS
USD
2952993.38000000
2.894914858175
Long
EC
CORP
US
N
1
N
N
N
PACCAR Inc
KDTEY8BWE486IKZ3CC07
PACCAR, Inc.
693718108
29067.00000000
NS
USD
3491528.04000000
3.422857792092
Long
EC
CORP
US
N
1
N
N
N
Ross Stores Inc
549300ENZFLPGRDFZQ60
Ross Stores, Inc.
778296103
24326.00000000
NS
USD
5177789.10000000
5.075954013173
Long
EC
CORP
US
N
1
N
N
N
ServiceTitan Inc
N/A
ServiceTitan, Inc.
81764X103
23489.00000000
NS
USD
1660907.19000000
1.628241002822
Long
EC
CORP
US
N
1
N
N
N
A O Smith Corp
549300XG4US7UJNECY36
A.O. Smith Corp.
831865209
41940.00000000
NS
USD
2630476.80000000
2.578741430299
Long
EC
CORP
US
N
1
N
N
N
Teledyne Technologies Inc
549300VSMO9KYQWDND94
Teledyne Technologies, Inc.
879360105
5100.00000000
NS
USD
3401190.00000000
3.334296491540
Long
EC
CORP
US
N
1
N
N
N
Thor Industries Inc
254900XZO1228PDSG060
Thor Industries, Inc.
885160101
25295.00000000
NS
USD
1901172.20000000
1.863780558061
Long
EC
CORP
US
N
1
N
N
Tyler Technologies Inc
25490040SMU4Z8LBCW70
Tyler Technologies, Inc.
902252105
4174.00000000
NS
USD
1220728.04000000
1.196719154442
Long
EC
CORP
US
N
1
N
N
N
Verisk Analytics Inc
549300I1YSWNIRKBWP67
Verisk Analytics, Inc.
92345Y106
11296.00000000
NS
USD
2027970.88000000
1.988085402500
Long
EC
CORP
US
N
1
N
N
N
Waters Corp
5T547R1474YC9HOD8Q74
Waters Corp.
941848103
7073.00000000
NS
USD
2652657.92000000
2.600486299181
Long
EC
CORP
US
N
1
N
N
N
State Street Global Advisors
549300BZ5TGIFZUZDZ37
State Street Institutional US Government Money Market Fund
857492706
6663928.60000000
NS
USD
6663928.60000000
6.532864600582
Long
STIV
RF
US
N
1
N
N
N
State Street Global Advisors
5493008BJIBKQ5KTIF74
State Street Navigator Securities Lending Government Money Market Portfolio
857509301
1995514.50000000
NS
USD
1995514.50000000
1.956267364119
Long
STIV
RF
US
N
1
N
N
Arch Capital Group Ltd
549300AYR4P8AFKDCE43
Arch Capital Group Ltd.
000000000
77561.00000000
NS
USD
7528070.66000000
7.380010993125
Long
EC
CORP
BM
N
1
N
N
N
2026-07-15
ULTRA SERIES FUND
Greg Hoppe
Greg Hoppe
Chief Financial Officer