Astronics

ATRO • NASDAQ

Astronics is a aerospace & defense company in the industrials sector on NASDAQ, led by Peter J. Gundermann, with a market cap of $1.9B. As of Q3 2025, 82% of shares are held by 224 institutional investors, with BlackRock, Inc. as the largest holder at 6.4%.

Chairman of the Board and CEOPeter J. Gundermann

Market Cap$1.9B

Aerospace & Defense

Industrials

Employees2.6K

Websiteastronics.com

Country

United States of America

Overview

Overview of institutional ownership in ATRO as of Q3 2025 with a market cap of $1.6B

All Institutions

Institutions: 224
Value Held: $1.3B
Shares Held: 29.1M
Avg Position: $5.9M
Median Position: $765.1K

Hedge Funds

Hedge Funds: 40
Value Held: $345.7M
Shares Held: 7.6M
Avg Position: $8.6M
Median Position: $2.2M

Ownership Breakdown

Institutional (non-HF)

60.69%

$980.0M

Hedge Funds

21.41%

$345.7M

Retail & Other

17.91%

$289.2M

Based on market cap of $1.6B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in ATRO as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$103.4M 0.00% of portfolio	6.40% 2.3M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$88.3M 0.00% of portfolio	5.47% 1.9M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$66.2M 0.00% of portfolio	4.10% 1.5M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
C Capital International Investors Institution	-	$64.2M 0.01% of portfolio	3.97% 1.4M shares	Q3 2025 Held for 2 months	$615.90B
3 325 CAPITAL LLC Hedge Fund•Value	Michael Braner Managing Partner	$62.1M 18.86% of portfolio	3.84% 1.4M shares	Q4 2021 Held for 3y 11m	$329.1M
ACK Asset Management LLC Hedge Fund•Long/Short	John Henry Reilly Managing Partner	$56.1M 6.68% of portfolio	3.47% 1.2M shares	Q4 2022 Held for 2y 11m	$839.5M
NEXT CENTURY GROWTH INVESTORS LLC Long Only Manager	Thomas Leigh Press CEO	$55.4M 4.10% of portfolio	3.43% 1.2M shares	Q1 2021 Held for 4y 8m	$1.4B
Luxor Capital Group, LP Hedge Fund•Multi-Strategy	Christian Alexander Leone CEO	$52.7M 7.38% of portfolio	3.26% 1.2M shares	Q3 2025 Held for 2 months	$713.8M
D D. E. Shaw & Co., Inc. Institution	-	$40.2M 0.03% of portfolio	2.49% 882.1K shares	Q1 2017 Held for 8y 8m	$115.81B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$34.1M 0.00% of portfolio	2.11% 748.4K shares	≤ Q2 2013 Held for 12y 5m+	$1.57T

Net Capital Flow

Institutional buying and selling activity for ATRO in Q3 2025

Traded: +$62.0M
Buyers: 126
Sellers: 112
Total Bought: +$298.1M
Total Sold: −$236.1M
Avg Position: $5.0M

Biggest Buyers

Institution	Net Bought	Current Position
C Capital International Investors Institution	+$64.2M +1.4M shares	$64.2M 1.4M shares
Luxor Capital Group, LP Hedge Fund•Multi-Strategy	+$52.7M +1.2M shares	$52.7M 1.2M shares
D DENDUR CAPITAL LP Hedge Fund•Event Driven	+$16.5M +362.0K shares	$16.5M 362.0K shares
$DEUTSCHE BANK AG\ logo$ DEUTSCHE BANK AG\ Institution	+$15.1M +331.7K shares	$19.0M 417.5K shares
DRIEHAUS CAPITAL MANAGEMENT LLC Hedge Fund•Event Driven	+$11.9M +260.8K shares	$11.9M 260.8K shares
SG Capital Management LLC Hedge Fund•Event Driven	+$11.6M +254.7K shares	$11.6M 254.7K shares
LAZARD ASSET MANAGEMENT LLC Long Only Manager	+$10.6M +231.3K shares	$10.8M 236.1K shares
A AMERICAN CENTURY COMPANIES INC Institution	+$9.1M +199.1K shares	$24.6M 539.0K shares
SCHWAB CHARLES INVESTMENT MANAGEMENT INC Long Only Manager	+$9.0M +197.2K shares	$13.1M 287.5K shares
C CANADA PENSION PLAN INVESTMENT BOARD Institution	+$8.2M +178.8K shares	$12.3M 269.6K shares

Biggest Sellers

Institution	Net Sold	Current Position
ACK Asset Management LLC Hedge Fund•Long/Short	−$37.9M −830.0K shares	$56.1M 1.2M shares
JPMORGAN CHASE & CO Institution	−$15.7M −344.4K shares	$2.7M 59.0K shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$15.4M −337.7K shares	$15.8M 346.5K shares
UBS Group AG Institution	−$14.4M −315.6K shares	$3.0M 65.4K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	−$14.2M −311.1K shares	$6.9M 150.5K shares
C Cubist Systematic Strategies, LLC Institution	−$11.7M −255.8K shares	$2.8M 61.8K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	−$8.2M −180.3K shares	$7.5M 164.6K shares
MORGAN STANLEY RIA/Wealth	−$7.6M −166.1K shares	$22.7M 498.2K shares
Q Qube Research & Technologies Ltd Institution	−$6.5M −143.6K shares	$1.4M 29.6K shares
S Senator Investment Group LP Institution	−$5.4M −119.4K shares	$28.4M 621.7K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited ATRO in Q3 2025

New Positions: 26
New Value: $156.9M
Exited Positions: 41
Exited Value: $33.2M

New Positions

Institution	Position Value
C Capital International Investors Institution	$64.2M 1.4M shares
Luxor Capital Group, LP Hedge Fund•Multi-Strategy	$52.7M 1.2M shares
D DENDUR CAPITAL LP Hedge Fund•Event Driven	$16.5M 362.0K shares
SG Capital Management LLC Hedge Fund•Event Driven	$11.6M 254.7K shares
NORDEA INVESTMENT MANAGEMENT AB Institution	$4.1M 92.2K shares
LINDEN ADVISORS LP Hedge Fund•Multi-Strategy	$991.8K 21.7K shares
Ellsworth Advisors, LLC RIA/Wealth	$917.9K 18.7K shares
Diametric Capital, LP Hedge Fund•Long/Short	$826.5K 18.1K shares
S Shay Capital LLC Institution	$766.2K 16.8K shares
Empirical Asset Management, LLC RIA/Wealth	$667.0K 14.6K shares

Exited Positions

Institution	Previous Position
J JANE STREET GROUP, LLC Institution	$5.4M 162.6K shares
LEUCADIA NATIONAL CORP Institution	$3.2M 95.6K shares
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	$2.9M 87.3K shares
SEGALL BRYANT & HAMILL Long Only Manager	$2.2M 64.4K shares
H HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Institution	$1.7M 52.2K shares
O OPTIONS SOLUTIONS, LLC Hedge Fund•Sector	$1.7M 49.8K shares
ALGERT COLDIRON INVESTORS LLC Hedge Fund•Quant	$1.6M 47.9K shares
CANNELL CAPITAL LLC Hedge Fund•Long/Short	$1.6M 47.5K shares
GSA CAPITAL PARTNERS LLP Hedge Fund•Quant	$1.5M 44.3K shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$1.4M 42.4K shares

Options Activity

Institutions with the largest Call and Put options positions in ATRO as of Q3 2025

Call Positions: 4
Call Value: $39.7M
Put Positions: 2
Put Value: $255.4K

Call Positions

Institution	Position Value
UBS Group AG Institution	$37.4M 8.2K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$1.2M 273.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$1.1M 231.0 contracts
P PEAK6 LLC Institution	- - contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$223.5K 49.0 contracts
BANK OF AMERICA CORP /DE/ Institution	$31.9K 7.0 contracts

Most Committed Institutions

Institutions with ATRO as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
3 325 CAPITAL LLC Hedge Fund•Value	Michael Braner Managing Partner	18.86% $62.1M	3.84% 1.4M shares	Q4 2021 Held for 3y 11m	$329.1M
Luxor Capital Group, LP Hedge Fund•Multi-Strategy	Christian Alexander Leone CEO	7.38% $52.7M	3.26% 1.2M shares	Q3 2025 Held for 2 months	$713.8M
ACK Asset Management LLC Hedge Fund•Long/Short	John Henry Reilly Managing Partner	6.68% $56.1M	3.47% 1.2M shares	Q4 2022 Held for 2y 11m	$839.5M
M Minerva Advisors LLC Hedge Fund•Value	David Peter Cohen President	5.65% $8.9M	0.55% 195.0K shares	≤ Q2 2013 Held for 12y 5m+	$157.5M
NEXT CENTURY GROWTH INVESTORS LLC Long Only Manager	Thomas Leigh Press CEO	4.10% $55.4M	3.43% 1.2M shares	Q1 2021 Held for 4y 8m	$1.4B
Private Capital Management, LLC RIA/Wealth	Gregg Joseph Powers CEO	2.59% $25.6M	1.59% 561.3K shares	Q1 2025 Held for 8 months	$986.6M
D DENDUR CAPITAL LP Hedge Fund•Event Driven	Malcolm Andrew Levine CIO	1.84% $16.5M	1.02% 362.0K shares	Q3 2025 Held for 2 months	$897.0M
TradeLink Capital LLC Hedge Fund•Event Driven	Steven Wesley Wolf CEO	1.73% $208.8K	0.01% 4.6K shares	Q3 2025 Held for 2 months	$12.0M
SG Capital Management LLC Hedge Fund•Event Driven	Glen Schneider President	1.16% $11.6M	0.72% 254.7K shares	Q3 2025 Held for 2 months	$998.2M
S Senator Investment Group LP Institution	-	1.04% $28.4M	1.76% 621.7K shares	Q3 2023 Held for 2y 2m	$2.7B

Hedge Fund Spotlight

Discover hedge funds investing in ATRO

Minerva Advisors LLC

Hedge Fund • Value

Portfolio ManagerDavid Peter Cohen

Portfolio Value: $157.5M
Positions: 56
Last Reported: Q3 2025

Sector Allocation

Position in Astronics

Market Value: $8.9M
Shares Held: 195.0K
Portfolio Weight: 5.65%
Owned Since: 2013-Q2

Top Holding	Sector	Market Value	Weight
1 Great Lakes Dredge & Dock GLDD	Engineering & Construction Industrials	$16.7M	10.58%
2 Tredegar TG	Manufacturing - Metal Fabrication Industrials	$13.3M	8.45%
3 Eastern Company EML	Manufacturing - Tools & Accessories Industrials	$12.4M	7.90%