Hyliion Holdings

HYLN · NYSE American

$3.17−$0.03 (−0.94%)TodayMarket closed ·
Prev close $3.20

Who owns HYLN

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 42.7% of HYLN’s shares.

  • Healy (Thomas J)17.7%
  • BlackRock Institutional Trust Company, N.A.5.5%
  • Grace (Victoria K.)5.4%
  • Vanguard Capital Management, LLC3.1%
  • Next 6 largest institutions11.1%
  • All other shareholders57.3%
Top institutional holders of HYLN
HolderShares% of shares
Healy (Thomas J)31.52M17.68%
BlackRock Institutional Trust Company, N.A.9.80M5.50%
Grace (Victoria K.)9.55M5.35%
Vanguard Capital Management, LLC5.55M3.11%
General Electric Co5.50M3.08%
D. E. Shaw & Co., L.P.3.90M2.19%
Geode Capital Management, L.L.C.3.30M1.85%
State Street Investment Management (US)2.86M1.60%
Invesco Capital Management LLC2.31M1.30%
Millennium Management LLC1.90M1.07%

Largest mutual fund holders

Top mutual fund holders of HYLN
HolderShares% of shares
Vanguard Total Stock Market Index Fund3.94M2.21%
iShares Russell 2000 ETF3.34M1.87%
Vanguard Extended Market Index Fund1.49M0.83%
Fidelity Small Cap Index Fund1.39M0.78%
iShares Russell 2000 Value ETF1.15M0.65%

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders bought $170.00K (1 trade) of HYLN on the open market, with no sales.

Latest HYLN insider transactions
InsiderTypeSharesValue
Standley GregOther17.55K—
Standley GregOther16.63K—
Standley GregOther17.55K—
Standley GregOther16.63K—
MOOK JOSHUA T.Other71.34K—
MOOK JOSHUA T.Other55.98K—
MOOK JOSHUA T.Other71.34K—
MOOK JOSHUA T.Other55.98K—
Panzer JonOther75.46K—
Panzer JonOther59.21K—

Short interest

Settled Sep 30, 2026

Shares short
15.28M
Days to cover
6.94
% of shares outstanding
8.57%
Average daily volume
2.20M
Change since last report
−4.4%

Information on this page is provided for informational purposes only and is not a recommendation to buy, sell or hold any security. Investing involves risk, including possible loss of principal. Market data is delayed at least 15 minutes and is provided without warranty. Analyst ratings, price targets and company data come from third-party sources. Past performance does not guarantee future results.