$DIOD

$88.57 +$5.48 (6.6%) Close

$DIOD Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 46.1M shares outstanding

Who owns DIOD?

By type of holder

Institutions 99.6% Insiders 0.4% Everyone else 0.0%

Concentration Top 10 holders own 60.0%

BlackRock, Inc. 16.0% · FMR LLC 9.5%

Institutional ownership

99.6%

+1.0 pts vs last qtr

Institutional holders

399

+60 vs last qtr

Net shares bought

+467.2K

by institutions in Q2 2026

New / sold out

96 / 36

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

William Blair Investment Management, LLC +1.2M
Price T Rowe Associates Inc /MD/ +923.0K

Biggest sellers in Q2 2026

FMR LLC −1.3M
Morgan Stanley −618.8K

Who is planning to sell?

Notices of proposed sale, last 12 months

$16.4M

24 notices from 10 people

Shares covered

202.4K

0.44% of the company

Arranged in advance

46%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Texastac Investments L.P. Director $4.42M
Lu Granchildrens Trust U/a DTD 08/26/2012 Director 10b5-1 $3.14M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

−6.8%

−0.78% a year

Each share's claim on the business

+7.3%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$357M vs $248M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years78% 3–5 years2% 1–3 years9% Under 1 year11%

Quarterly turnover

14.7%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting DIOD on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	7.3M	15.95%	+147.2K (+2.0%)	≤2021	0.0%
Shares held by quarter Peak holding7.7M (Q4'24) Change over 8 quarters−158.3K Share of the company15.950% BlackRock, Inc.'s full portfolio →
F FMR LLC	4.4M	9.51%	−1.3M (−23.0%)	≤2021	0.0%
Shares held by quarter Peak holding6.3M (Q4'25) Change over 8 quarters−1.4M Share of the company9.510% FMR LLC's full portfolio →

BlackRock, Inc.

7.3M

% of company

15.95%

Change vs last qtr

+147.2K (+2.0%)

Held since

≤2021

FMR LLC

4.4M

% of company

9.51%

Change vs last qtr

−1.3M (−23.0%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Diodes Incorporated, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting DIOD on Form N-PORT; together they hold 60.2% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Small-Cap ETF iShares Trust	$303M	2.8M	6.01%	0.27%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$152M	1.4M	3.01%	0.01%	June 30, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$303M

% of company

6.01%

% of the fund

0.27%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$152M

% of company

3.01%

% of the fund

0.01%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Diodes Incorporated and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
LK Lu Keh Shew Insider	330.0K	0.72%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.720% Lu Keh Shew's insider activity →
TF Tang Francis Insider	789	0.00%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.000% Tang Francis's insider activity →

Lu Keh Shew

Insider

330.0K

% of company

0.72%

Change vs last qtr

—

Held since

—

Tang Francis

Insider

789

% of company

0.00%

Change vs last qtr

—

Held since

—

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