Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.
ON
ON SEMICONDUCTORData as of 2026 Q1 (03-31) · 13F snapshot
Summary
ON SEMICONDUCTOR (ON) is held by 11 tracked hedge-fund managers, a combined reported value of ~$401.75M; the largest are Ken Griffin, Joel Greenblatt, Dan Loeb. This quarter: 1 added, 3 trimmed, 2 closed. 20 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Cooling
Gurus holding11
Congress trades20
Price$116.79vs quarter-end+88.61%
Sectors0
This quarter's moves
Top holderKen GriffinNew0
Added1
Trimmed / sold5
Value $59.78M— of portfolio965,4002026 Q1
Dan LoebNew large stake
Value $47.49M1.8% of portfolio4,535,6002011 Q2
Value $42.97M— of portfolio693,9002026 Q1
David EinhornTrim
Value $30.80M0.6% of portfolio3,142,8912015 Q4
Value $29.04M0.7% of portfolio536,2602025 Q4
Value $13.74M— of portfolio221,9002026 Q1
Value $13.31M— of portfolio214,9002026 Q1
Value $2.43M— of portfolio39,3002026 Q1
Value $1.51M— of portfolio24,4002026 Q1
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Ken GriffinCALL | $59.78M | — | — |
| Dan Loeb | $47.49M | 1.8% | New large stake |
| Ken GriffinPUT | $42.97M | — | — |
| David Einhorn | $30.80M | 0.6% | Trim |
| Stanley Druckenmiller | $29.04M | 0.7% | New |
| Izzy EnglanderPUT | $13.74M | — | — |
| Izzy EnglanderCALL | $13.31M | — | — |
| Steven CohenPUT | $2.43M | — | — |
| Steven CohenCALL | $1.51M | — | — |