Who holds ticker verified against the SEC company list on 2026-09-10 — a reviewed name-and-class mapping row, never an inferred symbol. how tickers are mapped ↗

ON SEMICONDUCTOR CORP · common stock (filed as COM) · Q1 2026 · 8 members disclosed ON ↗
13F filers reporting this class for the quarter ended 2026-03-31; 1–500 of 664 holders are listed, largest first
664
sum of the reported values across every holder; undisclosed values are left out, never counted as zero
$22.2B
holders whose share count rose or who opened the position (new + add), by shares
333
holders absent this quarter after holding last quarter — inferred from absence, not a sale record
87
FILING WINDOW OPEN
Q3 2026 filings are due by 2026-11-16 — figures for that quarter will change; missing filers are not zeros.

Holders — quarter ended 2026-03-31

by reported value · Δ shares vs 2025-12-31Holders rank by reported value. The change kind — new, add, trim or exit — is read from the share count against the prior quarter, never from the reported value.
13F holders of ON ranked by reported value, 1–25 of 664 holders
#FilerReported valueSharesΔ sharesChange
1FMR LLC$3.6B58,158,341−1,213,771TRIM
2BlackRock, Inc.$2.5B39,911,681−491,029TRIM
3VANGUARD CAPITAL MANAGEMENT LLC$1.6B25,633,199—NO PRIOR
4VANGUARD PORTFOLIO MANAGEMENT LLC$1.2B20,062,560—NO PRIOR
5STATE STREET CORP$1.1B18,307,578−542,474TRIM
6Janus Henderson Group Ltd.$848M13,700,884+1,345,894ADD
7GEODE CAPITAL MANAGEMENT, LLC$666M10,763,837−244,536TRIM
8Slate Path Capital LP$483M7,798,800−2,681,400TRIM
9AMERIPRISE FINANCIAL INC$400M6,453,590+319,395ADD
10Allspring Global Investments Holdings, LLC$379M6,099,934−263,871TRIM
11MORGAN STANLEY$378M6,107,253−597,306TRIM
12Invesco Ltd.$374M6,036,311−123,706TRIM
13BANK OF AMERICA CORP /DE/$324M5,226,522−1,547,803TRIM
14Amundi$300M4,850,561+1,494,404ADD
15CITIGROUP INC$289M4,660,942+40,804ADD
16Pictet Asset Management Holding SA$284M4,597,886+615,905ADD
17TWO SIGMA INVESTMENTS, LP$276M4,453,815+460,449ADD
18BAILLIE GIFFORD & CO$265M4,287,304−438,212TRIM
19BARCLAYS PLC$243M3,924,758−735,615TRIM
20UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$217M3,503,234+376,657ADD
21UBS Group AG$216M3,482,978+154,067ADD
22NORTHERN TRUST CORP$214M3,451,844−83,533TRIM
23DIMENSIONAL FUND ADVISORS LP$213M3,442,177+207,587ADD
24DEUTSCHE BANK AG\$186M3,004,795−340,659TRIM
25Rafferty Asset Management, LLC$175M2,826,300−808,166TRIM
Show the top 500 of 664 holders
Truncated by Public Filings. Top 500 of 664 holders shown; the rest are on EDGAR. Method ↗
Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt.

Congress ↔ notable managers · ON

Congress · last 90 days

Buyers
1 Gilbert Ray Cisneros, Jr. D–CA-31 $15K–$50K
Sellers
0 — —

filed 2026-07-31 → 2026-10-29 · statutory ranges

Use of congressional disclosure reports for commercial purposes, credit decisions or solicitation is restricted by 5 U.S.C. §13107(c).

Notable managers · quarter ended 2026-03-31

by shares · $ = value heldNEW + ADD vs TRIM + EXIT, by share count. $ = reported value now, not the change. · ON SEMICONDUCTOR CORP

Merged timeline of congressional filings and notable-manager moves on ON
DateWhoChangeSize
2026-10-12Gilbert Ray Cisneros, Jr. CongressBUY$15K–$50K
2026-05-15Sachem Head Capital 13FNEW+1,945,000 sh
2026-05-15Gotham Asset Management 13FADD+72,742 sh
2026-05-15Bridgewater Associates 13FTRIM−37,992 sh
2026-05-15Duquesne Family Office 13FEXIT−536,260 sh
2026-05-14Caxton Associates 13FNEW+8,000 sh

6 newest, by filing date · 13F rows are quarter-end snapshots, not trades

A 13F is a quarterly, long-only snapshot filed up to 45 days late — not current holdings. what a 13F covers ↗

13F reports cover LONG positions in Section 13(f) securities (US exchange-traded equities plus reportable options, warrants, certain convertibles) held by managers with at least $100M in such securities — so managers below that threshold are absent entirely. No short positions, no cash, no non-13(f) assets — not a full portfolio, and not a census of institutional ownership.

Positions are quarter-end snapshots filed up to 45 days late — not current holdings: a position may have changed or closed since the quarter ended.

Values are the manager's stated market value at quarter-end in era-dependent units (whole dollars for form versions effective 2023-01-03 onward, thousands before), normalized here to whole dollars; each record notes its original unit.

Affiliated managers may report the same position, so one position can appear under more than one filer.

Positions under confidential treatment may be omitted until a later amendment discloses them.

These are disclosures, not investment advice.