OBERWEIS ASSET MANAGEMENT INC/

Position in AIR — Aar Corp

CIK 937886 LISLE, IL

Position in AIR

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$26,831,382

+$4,254,549 QoQ

Shares Held

245,125

-10.1% QoQ

Ownership

0.616%

of shares outstanding

% of Portfolio

0.79%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2025

5 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Industrials · as of Mar 31, 2026

OBERWEIS ASSET MANAGEMENT INC/ holds $106,953,945 across 6 Aerospace & Defense names. AIR ranks #2 (25.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MRCY	Mercury Systems Inc	391,023	$28,509,486
2	AIR	Aar Corp This page	245,125	$26,831,382
3	DRS	Leonardo DRS, Inc.	449,500	$20,011,740
4	MOG-A	Moog Inc.	44,910	$13,142,462
5	DCO	Ducommun Inc /De/	99,900	$12,187,800
6	VSEC	Vse Corp	34,008	$6,271,075

5 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$26,831,382	245,125	-10.1%	Shares	Sole	2026-05-15
2025-12-31	$22,576,833	272,700	+15.3%	Shares	Sole	2026-02-17
2025-09-30	$21,206,955	236,500	0.0%	Shares	Sole	2025-11-17
2025-06-30	$16,268,835	236,500	+7.5%	Shares	Sole	2025-08-14
2025-03-31	$12,317,800	220,000	—	Shares	Sole	2025-05-15
No filing history on record for this holder in this stock.