DOSSIER · 13F Holders · Q1 2026BellwetherCompounder
ON 0 05/01/27

ON SEMICONDUCTOR CORP

75 institutions still hold ON SEMICONDUCTOR CORP as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 682189AS4·75 13F holders·last filed Mar 31, 2026
Market cap
8.4%
vs prior quarter
13F value held
$797M
53.0% inst. owned
of float
Holders
75
+73 QoQ
filers reporting
Activity
+86 / −6
+817 added · −788 reduced
this quarter
Concentration
15.82%
STEELHEAD PARTNERS LLC #1
top holder share
AI Holders Summary · Q1 2026

75 institutions reported ON 0 05/01/27 in Q1 2026. STEELHEAD PARTNERS LLC leads at 15.8% of the visible book. +73 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
STEELHEAD PARTNERS LLC
CIK 0001133521
$126M97.7M9.06%Q1 2026
02
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$72M56.2M1.11%Q1 2026
03
Sculptor Capital LP
CIK 0001054587
$65M50.0M0.67%Q1 2026
04
FMR LLC
CIK 0000315066
$64M49.3M0.00%Q1 2026
05
Calamos Advisors LLC
CIK 0001316507
$55M42.8M0.20%Q1 2026
06
JPMORGAN CHASE & CO
CIK 0000019617
$53M42.9M0.00%Q1 2026
07
MACKAY SHIELDS LLC
CIK 0000061227
$51M39.2M1.85%Q1 2026
08
BANK OF MONTREAL /CAN/
CIK 0000927971
$40M31.2M0.01%Q1 2026
09
Alberta Investment Management Corp
CIK 0001463559· Sovereign
$32M25.0M0.19%Q1 2026
10
BlueCrest Capital Management Ltd
CIK 0001610880
$32M25.0M1.91%Q1 2026
11
SILVERBACK ASSET MANAGEMENT LLC
CIK 0001278960
$29M22.6M4.16%Q1 2026
12
Lombard Odier Asset Management (Europe) Ltd
CIK 0001535784
$26M20.5M1.44%Q1 2026
13
Jain Global LLC
CIK 0002024579
$23M17.5M0.09%Q1 2026
14
STATE STREET CORP
CIK 0000093751
$22M17.0M0.00%Q1 2026
15
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$20M15.4M0.01%Q1 2026
16
VICTORY CAPITAL MANAGEMENT INC
CIK 0001040188
$19M14.8M0.01%Q1 2026
17
MIZUHO SECURITIES USA LLC
CIK 0000812291
$19M14.8M0.44%Q1 2026
18
Boussard & Gavaudan Investment Management LLP
CIK 0001614986
$17M14K1.63%Q1 2026
19
BlackRock, Inc.
CIK 0002012383
$17M13.1M0.00%Q1 2026
20
ROYAL BANK OF CANADA
CIK 0001000275
$16M12.1M0.00%Q1 2026
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