Holdings of OBERWEIS ASSET MANAGEMENT INC/

Name: Holdings of OBERWEIS ASSET MANAGEMENT INC/
Creator: Titelia

162 declared positions · as of Mar 31, 2026

Original filing · Ten largest lines: 26.5 % of the equity sleeve

Sector breakdown

Technology 8.1 %
Materials 1.3 %
Financials 0.1 %
Unattributed 90.4 %

Titelia classification, company by company. The unattributed share stays visible.

Currency breakdown

USD 100.0 %

The quoted currency of each line, as declared.

Country breakdown

US 98.9 %
KY 1.1 %
CN 0.0 %
HK 0.0 %

Shares computed on the equity sleeve.

Rank	Country	Lines	Value	Share
1	US	159	2.9B $	98.87 %
2	KY	1	31.7M $	1.07 %
3	CN	1	1.2M $	0.04 %
4	HK	1	615.4K $	0.02 %

Positions

Rank	Company	Shares	Value
1	Applied Optoelectronics Inc	2,349,969	198.8M $
2	Lumentum Holdings Inc	266,222	187.1M $
3	DigitalOcean Holdings Inc	927,505	79.6M $
4	Dana Inc	1,611,500	54.2M $
5	BrightSpring Health Services Inc	1,158,970	49.4M $
6	MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC	215,886	47.9M $
7	Rambus Inc	526,316	45.3M $
8	Clean Harbors Inc	144,355	41.4M $
9	SiTime Corp	119,281	41.2M $
10	Ultra Clean Holdings Inc	640,476	39.8M $
11	Everus Construction Group Inc	326,533	38.6M $
12	Frontdoor Inc	717,960	38M $
13	Carpenter Technology Corp	94,433	37.2M $
14	SkyWest Inc	392,499	36M $
15	Lattice Semiconductor Corp	374,436	34.7M $
16	Globus Medical Inc	392,200	33.8M $
17	Arcutis Biotherapeutics Inc	1,365,941	32.2M $
18	Flowserve Corp	434,681	32M $
19	Silicon Motion Technology Corp	282,550	31.7M $
20	Life Time Group Holdings Inc	1,160,500	31.3M $
21	Rush Street Interactive Inc	1,434,560	31.2M $
22	FirstCash Holdings Inc	165,665	31.1M $
23	Fastly Inc	1,071,022	31.1M $
24	Tutor Perini Corp	393,900	30.4M $
25	Dutch Bros Inc	598,493	30.3M $
26	Solaris Energy Infrastructure Inc	531,889	30.1M $
27	Merit Medical Systems Inc	424,209	29.2M $
28	Federal Signal Corp	267,634	28.9M $
29	American Superconductor Corp	849,900	28.8M $
30	Mercury Systems Inc	391,023	28.5M $
31	Arcosa Inc	267,700	28.4M $
32	OSI Systems Inc	106,593	28.3M $
33	Core Natural Resources Inc	269,800	28.3M $
34	Waystar Holding Corp	1,167,474	28.1M $
35	Encompass Health Corp	289,485	28M $
36	Veracyte Inc	839,834	27.1M $
37	AAR Corp	245,125	26.8M $
38	ICU Medical Inc	203,710	26.3M $
39	Littelfuse Inc	71,800	24.4M $
40	Primoris Services Corp	166,100	23.8M $
41	Remitly Global Inc	1,454,300	22.8M $
42	Assurant Inc	102,300	22.3M $
43	Blue Bird Corp	389,238	22.1M $
44	Levi Strauss & Co	1,167,300	21.6M $
45	Alphatec Holdings Inc	1,908,293	20.8M $
46	nLight Inc	363,010	20.7M $
47	National Vision Holdings Inc	797,780	20.7M $
48	Ameris Bancorp	263,500	20.6M $
49	Leonardo DRS Inc	449,500	20M $
50	Urban Outfitters Inc	314,792	19.9M $
51	Indivior Pharmaceuticals Inc	653,413	19.9M $
52	Grand Canyon Education Inc	116,900	19.9M $
53	Vistance Networks Inc	1,092,012	19.9M $
54	Matador Resources Co	312,700	19.8M $
55	Viavi Solutions Inc	593,200	19.7M $
56	Chime Financial Inc	1,035,530	19.4M $
57	Pegasystems Inc	455,290	19.4M $
58	Catalyst Pharmaceuticals Inc	780,570	19.3M $
59	Q2 Holdings Inc	394,629	18.7M $
60	Powell Industries Inc	34,157	18.5M $
61	IRhythm Holdings Inc	156,004	18.4M $
62	Box Inc	771,520	18.2M $
63	Argan Inc	33,322	18.1M $
64	Hinge Health Inc	465,766	18M $
65	New York Times Co/The	211,650	17.7M $
66	American Eagle Outfitters Inc	1,044,900	17.4M $
67	Alignment Healthcare Inc	966,600	17M $
68	ANI Pharmaceuticals Inc	221,386	17M $
69	Envista Holdings Corp	665,400	16.9M $
70	GeneDx Holdings Corp	261,370	16.8M $
71	SPX Technologies Inc	83,441	16.7M $
72	Shake Shack Inc	187,570	16.6M $
73	Calix Inc	335,030	16.4M $
74	EZCORP Inc	639,400	16.2M $
75	LeMaitre Vascular Inc	148,601	16.2M $
76	Advanced Energy Industries Inc	49,183	15.9M $
77	Zurn Elkay Water Solutions Corp	352,183	15.8M $
78	Phibro Animal Health Corp	277,100	15.3M $
79	Diodes Inc	224,300	15.3M $
80	Pediatrix Medical Group Inc	701,087	15M $
81	Magnolia Oil & Gas Corp	454,466	14.3M $
82	Skyward Specialty Insurance Group Inc	327,100	14.3M $
83	Halozyme Therapeutics Inc	219,930	14.2M $
84	Liquidia Corp	372,100	14M $
85	Arlo Technologies Inc	982,300	14M $
86	HealthEquity Inc	166,641	13.9M $
87	ProPetro Holding Corp	965,500	13.9M $
88	Zeta Global Holdings Corp	871,060	13.9M $
89	Mirion Technologies Inc	744,267	13.8M $
90	Moog Inc	44,910	13.1M $
91	InterDigital Inc	42,645	12.9M $
92	Ducommun Inc	99,900	12.2M $
93	Impinj Inc	118,086	12.1M $
94	A10 Networks Inc	504,300	11.7M $
95	Dave Inc	66,702	11.6M $
96	Seacoast Banking Corp of Florida	378,866	11.5M $
97	Axogen Inc	342,394	11.3M $
98	Benchmark Electronics Inc	201,900	11.3M $
99	Adaptive Biotechnologies Corp	806,951	11.2M $
100	Nicolet Bankshares Inc	74,800	11.1M $