Stocks › DIOD
DIODES INC /DEL/
DIOD·Nasdaq·
United States·USD
United States·USD$107.74
+4.21 (+4.07%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
DIOD
DIODES INC /DEL/ · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
DIODS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
Loading price history…
Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of DIOD by members of U.S. Congress · 8 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Tommy TubervilleSenate · R · AL |
DIODDIODES INC /DEL/ · Stock |
Sale $1,001 - $15,000 |
Nov 16, 2023 | Oct 16, 2023 | Filing ↗ |
| Tommy TubervilleSenate · R · AL |
DIODDIODES INC /DEL/ · Stock |
Purchase $1,001 - $15,000 |
May 12, 2023 | Apr 3, 2023 | Filing ↗ |
| Tommy TubervilleSenate · R · AL |
DIODDIODES INC /DEL/ · Stock |
Purchase $1,001 - $15,000 |
May 11, 2023 | Apr 3, 2023 | Filing ↗ |
 Thomas R CarperSenate · D · DE |
DIODDIODES INC /DEL/ · Stock |
Sale $1,001 - $15,000 |
May 1, 2023 | Apr 17, 2023 | Filing ↗ |
 James B. RenacciHouse · R · OH |
DIODDIODES INC /DEL/ · Stock |
Sale $1,001 - $15,000 |
Nov 23, 2015 | Nov 6, 2015 | Filing ↗ |
 Thom TillisSenate · R · NC |
DIODDIODES INC /DEL/ · Stock |
Sale $1,001 - $15,000 |
Feb 26, 2015 | Feb 13, 2015 | Filing ↗ |
| James B. RenacciHouse · R · OH |
DIODDIODES INC /DEL/ · Stock |
Purchase $1,001 - $15,000 |
Aug 6, 2014 | Jul 25, 2014 | Filing ↗ |
| James B. RenacciHouse · R · OH |
DIODDIODES INC /DEL/ · Stock |
Purchase $1,001 - $15,000 |
Jan 27, 2014 | Jan 6, 2014 | Filing ↗ |
Whale Activity
Position changes in DIOD reported for 2026-06-30 by 9 tracked institutional filers
- Increased5
- New0
- Held0
- Decreased3
- Closed0
- No prior filing1
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 7.3M | $803.9M | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.7M | $409.6M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.0M | $218.3M | increased |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.7M | $184.2M | — |
| TWO SIGMA INVESTMENTS, LP | 83.2K | $9.1M | decreased |
| D. E. Shaw & Co., Inc. | 72.3K | $7.9M | decreased |
| MILLENNIUM MANAGEMENT LLC | 37.2K | $4.1M | increased |
| Bridgewater Associates, LP | 21.1K | $2.3M | increased |
| CITADEL ADVISORS LLC | 7,727 | $846K | decreased |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by DIOD insiders, by quarter · Form 4
Recent Insider Transactions
2,161 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| White Richard DallasCorporate Secretary | Sale | −2,000 | $107.01 | $214K | May 29, 2026 | Form 4 ↗ |
| White Richard DallasCorporate Secretary | Sale | −1,000 | $104.48 | $104K | May 29, 2026 | Form 4 ↗ |
| Tang FrancisChief Technology Officer | Sale | −15.3K | $112.04 | $1.7M | May 29, 2026 | Form 4 ↗ |
| Yu GaryPresident and CEO · Director | Sale | −3,632 | $110.08 | $400K | May 27, 2026 | Form 4 ↗ |
| Yang EmilySVP Worldwide Sales/Marketing | Sale | −3,000 | $110.08 | $330K | May 27, 2026 | Form 4 ↗ |
| Tang FrancisChief Technology Officer | Sale | −5,000 | $110.08 | $550K | May 27, 2026 | Form 4 ↗ |
| LU KEH SHEW | Tax withholding | −1,970 | $108.24 | $213K | May 26, 2026 | Form 4 ↗ |
| Tsong AndySVP Worldwide Products Group | Sale | −1,582 | $106.96 | $169K | May 26, 2026 | Form 4 ↗ |
| Yu GaryPresident and CEO · Director | Tax withholding | −592 | $108.24 | $64K | May 26, 2026 | Form 4 ↗ |
| Zhao JinPresident, Diodes Asia | Sale | −3,689 | $106.86 | $394K | May 26, 2026 | Form 4 ↗ |
| Yang EmilySVP Worldwide Sales/Marketing | Sale | −2,000 | $107.52 | $215K | May 26, 2026 | Form 4 ↗ |
| Tang FrancisChief Technology Officer | Sale | −4,137 | $108.00 | $447K | May 26, 2026 | Form 4 ↗ |
| Yang EmilySVP Worldwide Sales/Marketing | Sale | −2,000 | $96.81 | $194K | May 20, 2026 | Form 4 ↗ |
| Yu GaryPresident and CEO · Director | Gift | −300 | $0.00 | $0 | May 19, 2026 | Form 4 ↗ |
| Yang EmilySVP Worldwide Sales/Marketing | Sale | −2,000 | $101.47 | $203K | May 15, 2026 | Form 4 ↗ |
| Whitmire Brett RCFO | Sale | −16.6K | $103.34 | $1.7M | May 13, 2026 | Form 4 ↗ |
| Tsong AndySVP Worldwide Products Group | Sale | −2,652 | $110.00 | $292K | May 12, 2026 | Form 4 ↗ |
| Zhao JinPresident, Diodes Asia | Sale | −2,760 | $102.36 | $283K | May 12, 2026 | Form 4 ↗ |
| Tang FrancisChief Technology Officer | Sale | −3,643 | $108.00 | $393K | May 12, 2026 | Form 4 ↗ |
| Su Huey-Jen JennyDirector | Grant / award | +3,000 | $0.00 | $0 | May 11, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding DIOD · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF iShares Trust | 2.8M | $302.9M | 0.27% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.4M | $151.7M | 0.01% | Jun 30, 2026 |
| iShares Russell 2000 ETF iShares Trust | 1.2M | $129.3M | 0.16% | Jun 30, 2026 |
| VANGUARD INFORMATION TECHNOLOGY INDEX FUND VANGUARD WORLD FUND | 1.2M | $122.9M | 0.07% | May 31, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 1.0M | $109.6M | 0.06% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P(R) Semiconductor ETF SPDR SERIES TRUST | 729.7K | $79.9M | 2.30% | Jun 30, 2026 |
| Strategic Advisers Fidelity U.S. Total Stock Fund Fidelity Rutland Square Trust II | 735.0K | $77.4M | 0.03% | May 31, 2026 |
| VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 576.5K | $63.1M | 0.13% | Jun 30, 2026 |
| Invesco Semiconductors ETF Invesco Exchange-Traded Fund Trust | 702.7K | $57.8M | 2.43% | Jul 31, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 526.7K | $57.6M | 0.06% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list DIOD's shares (CUSIP 254543101), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- STATE STREET CORPORATIONSCHEDULE 13G · passive (13G) · 2.6M shares5.7%
Aug 7, 2026 · ↗ - Abigail P. JohnsonSCHEDULE 13G/A · passive (13G) · 4.4M shares9.5%
Aug 6, 2026 · ↗ - FMR LLCSCHEDULE 13G/A · passive (13G) · 4.4M shares9.5%
Aug 6, 2026 · ↗ - Dimensional Fund Advisors LPSCHEDULE 13G/A · passive (13G) · 2.2M shares4.8%
Jul 14, 2026 · ↗ - STATE STREET CORPORATIONSCHEDULE 13G · passive (13G) · 2.3M shares5.0%
May 12, 2026 · ↗ - Abigail P. JohnsonSCHEDULE 13G/A · passive (13G) · 5.7M shares12.4%
May 6, 2026 · ↗ - FMR LLCSCHEDULE 13G/A · passive (13G) · 5.7M shares12.4%
May 6, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming DIODES INC /DEL/ as client
No lobbying filings found naming DIODES INC /DEL/ as the client.
Government Contracts
Federal awards to DIODES INC /DEL/ · USAspending
No federal contract awards found for DIODES INC /DEL/.
U.S. Patents
Recent USPTO applications naming DIODES INC /DEL/
No USPTO patent applications found for DIODES INC /DEL/.
Annual Financials
From DIOD's 10-K filings · XBRL
No annual XBRL figures on record for DIOD. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
- 3-for-2Stock splitJul 31, 2007
- 3-for-2Stock splitDec 1, 2005
- 3-for-2Stock splitNov 26, 2003
- 3-for-2Stock splitJul 17, 2000
Split dates and ratios from the price history · Close Prices from Tiingo.com
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 8.01, 9.01Other eventsAug 27, 2026
EDGAR ↗ - 8-K · Items 1.01, 2.03, 3.02, 8.01, 9.01Material agreement · Direct financial obligation · Unregistered sale of equityAug 18, 2026
EDGAR ↗ - 8-K · Items 2.02, 7.01, 9.01Results of operations · Reg FD disclosureAug 12, 2026
EDGAR ↗ - 8-K · Items 2.02, 7.01, 9.01Results of operations · Reg FD disclosureAug 5, 2026
EDGAR ↗ - 8-K · Items 5.02, 7.01, 9.01Officer / director change · Reg FD disclosureJul 28, 2026
EDGAR ↗ - 8-K · Items 7.01, 9.01Reg FD disclosureJul 15, 2026
EDGAR ↗ - 8-K · Items 1.01, 7.01, 9.01Material agreement · Reg FD disclosureJul 14, 2026
EDGAR ↗ - 8-K · Items 2.02, 7.01, 9.01Results of operations · Reg FD disclosureMay 12, 2026
EDGAR ↗ - 8-K · Items 5.02, 5.07, 7.01, 9.01Officer / director change · Shareholder vote · Reg FD disclosureMay 12, 2026
EDGAR ↗ - 8-K · Items 2.02, 7.01, 8.01, 9.01Results of operations · Reg FD disclosure · Other eventsMay 7, 2026
EDGAR ↗
About DIODES INC /DEL/
From SEC EDGAR company records
Industry (SIC 3674)Semiconductors & Related Devices
SectorTechnology
HeadquartersPLANO, TX
IncorporatedDE
SEC CIK0000029002 ↗