DOSSIER · 13F Holders · Q1 2026Cheap mega-capRe-rated
GWRE 1.25 11/01/29

Guidewire Software 1.250 01-Nov-2029

67 institutions still hold Guidewire Software 1.250 01-Nov-2029 as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 40171VAC4·67 13F holders·last filed Mar 31, 2026
Market cap
2.2%
vs prior quarter
13F value held
$535M
60.0% inst. owned
of float
Holders
67
-113 QoQ
filers reporting
Activity
+81 / −13
+868 added · −823 reduced
this quarter
Concentration
13.34%
WOLVERINE ASSET MANAGEMENT LLC #1
top holder share
AI Holders Summary · Q1 2026

67 institutions reported GWRE 1.25 11/01/29 in Q1 2026. WOLVERINE ASSET MANAGEMENT LLC leads at 13.3% of the visible book. -113 net institutions QoQ — distribution reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
WOLVERINE ASSET MANAGEMENT LLC
CIK 0001279891
$71M71.6M0.69%Q1 2026
02
Aequim Alternative Investments LP
CIK 0001728201
$55M55.0M1.06%Q1 2026
03
Calamos Advisors LLC
CIK 0001316507
$45M44.8M0.16%Q1 2026
04
ADVENT CAPITAL MANAGEMENT /DE/
CIK 0001097278
$39M38.4M1.06%Q1 2026
05
LINDEN ADVISORS LP
CIK 0001279396
$38M37.8M0.21%Q1 2026
06
Wellesley Asset Management
CIK 0001533551
$30M32.2M3.18%Q1 2026
07
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$28M28.0M0.43%Q1 2026
08
FRANKLIN RESOURCES INC
CIK 0000038777
$28M28.0M0.01%Q1 2026
09
ZAZOVE ASSOCIATES LLC
CIK 0001009012
$28M25.3M2.40%Q4 2025
10
ARISTEIA CAPITAL, L.L.C.
CIK 0001080171
$27M27.5M0.57%Q1 2026
11
MACKAY SHIELDS LLC
CIK 0000061227
$25M25.1M0.92%Q1 2026
12
Mirabaud Asset Management (France) SAS
CIK 0002033031
$21M21.5M10.89%Q1 2026
13
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$17M16.6M0.00%Q1 2026
14
STATE STREET CORP
CIK 0000093751
$14M14.5M0.00%Q1 2026
15
BNP Paribas Asset Management Holding S.A.
CIK 0001520354
$13M13.2M0.02%Q1 2026
16
SILVERBACK ASSET MANAGEMENT LLC
CIK 0001278960
$12M12.5M1.78%Q1 2026
17
BlackRock, Inc.
CIK 0002012383
$11M11.3M0.00%Q1 2026
18
SHENKMAN CAPITAL MANAGEMENT INC
CIK 0001275228
$11M10.8M1.32%Q1 2026
19
MANUFACTURERS LIFE INSURANCE COMPANY, THE
CIK 0000928047
$11M10.6M0.01%Q1 2026
20
Lombard Odier Asset Management (Europe) Ltd
CIK 0001535784
$10M10.5M0.57%Q1 2026
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