$HYLN

$3.29 +$0.31 (10.4%) Close

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

Ownership

13F as of Q2 2026 · 178.6M shares outstanding

Who owns HYLN?

By type of holder

Institutions 33.2% Insiders 22.9% Everyone else 43.9%

Concentration Top 10 holders own 40.0%

Healy Thomas J. 18.6% · BlackRock, Inc. 6.4%

Institutional ownership

33.2%

+5.3 pts vs last qtr

Institutional holders

166

+24 vs last qtr

Net shares bought

+9.4M

by institutions in Q2 2026

New / sold out

41 / 17

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

BlackRock, Inc. +2.6M
D. E. Shaw & Co., Inc. +2.4M

Biggest sellers in Q2 2026

HITE Hedge Asset Management LLC −1.4M
Invesco Ltd. −1.3M

Who is planning to sell?

Notices of proposed sale, last 12 months

$2.01M

20 notices from 6 people

Shares covered

874.1K

0.49% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Thomas Healy Officer $1.02M
Jose Oxholm Officer $280K

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, FY2019–FY2025

+102.5%

+12.48% a year

Each share's claim on the business

−50.6%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$14M vs $28.6M

over 7 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+ years61% 3–5 years17% 1–3 years7% Under 1 year15%

Quarterly turnover

20.0%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting HYLN on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	11.5M	6.41%	+2.6M (+28.9%)	≤2021	0.0%
Shares held by quarter Peak holding11.5M (Q2'26) Change over 8 quarters+1.7M Share of the company6.410% BlackRock, Inc.'s full portfolio →
VC Vanguard Capital Management LLC	5.6M	3.11%	−64.5K (−1.1%)	≤2021	0.0%
Shares held by quarter Peak holding5.6M (Q1'26) Change over 8 quarters+5.6M Share of the company3.110% Vanguard Capital Management LLC's full portfolio →

BlackRock, Inc.

11.5M

% of company

6.41%

Change vs last qtr

+2.6M (+28.9%)

Held since

≤2021

Vanguard Capital Management LLC

5.6M

% of company

3.11%

Change vs last qtr

−64.5K (−1.1%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Hyliion Holdings Corp, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting HYLN on Form N-PORT; together they hold 12.2% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$20.5M	3.9M	2.21%	0.00%	June 30, 2026
IR iShares Russell 2000 ETF iShares Trust	$17.5M	3.4M	1.88%	0.02%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$20.5M

% of company

2.21%

% of the fund

0.00%

As of

June 30, 2026

iShares Russell 2000 ETF

iShares Trust

Position value

$17.5M

% of company

1.88%

% of the fund

0.02%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Hyliion Holdings Corp 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
HT Healy Thomas J. Insider	33.2M	18.59%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company18.590% Healy Thomas J.'s insider activity →
MJ Mook Joshua T. Insider	1.2M	0.69%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.690% Mook Joshua T.'s insider activity →

Healy Thomas J.

Insider

33.2M

% of company

18.59%

Change vs last qtr

—

Held since

—

Mook Joshua T.

Insider

1.2M

% of company

0.69%

Change vs last qtr

—

Held since

—

12 more holders behind a free account

See every insider and 5%+ holder of Hyliion Holdings Corp.

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