Oberweis Asset Management Inc/

Investment Portfolio & 13F Holdings Analysis

About

OBERWEIS ASSET MANAGEMENT INC/ is an institutional investment manager that filed its latest Form 13F for 2025Q1, reporting 192 holdings worth $2.0 billion. Form 13F filings provide transparency into the equity holdings of institutional investment managers with over $100 million in assets under management. This page displays the most recent portfolio holdings, allowing investors to track position changes, new investments, and portfolio composition.

Filing Details

13F-HR • 2025-03-31

SEC FilingSEC DataHachi Filing

Report Date: 2025-03-31
Filing Date: 2025-05-15
Total Holdings: 192
Total Value: 2006310493
Accession Number: 0001213900-25-043859
Form Type: 13F-HR
CIK: 0000937886
Manager Name: Oberweis Asset Management Inc/

Data Enrichment

98% identified

189 identified3 unidentified

Holdings

SEC FilingSEC DataHachi Filing

Manager:

192 positions • $2,006,310.493K total value

192 positions

Manager:

SEC FilingSEC DataHachi Filing

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ADMA BIOLOGICS, INC.

ADMA|000899104

3426260(+2.5%)

Value:

$68.0B(+18.6%)

Credo Technology Group Holding Ltd

CRDO|G25457105

1259915(+31.3%)

Value:

$50.6B(-21.5%)

SharkNinja, Inc.

SN|G8068L108

500160(+0.2%)

Value:

$41.7B(-14.2%)

Encompass Health Corp

EHC|29261A100

370720(+8.8%)

Value:

$37.5B(+19.3%)

Doximity, Inc.

DOCS|26622P107

584060(+1.9%)

Value:

$33.9B(+10.8%)

AMBARELLA INC

AMBA|G037AX101

568825(+211.2%)

Value:

$28.6B(+115.3%)

ITRON, INC.

ITRI|465741106

272510(+36.9%)

Value:

$28.5B(+32.0%)

SKYWEST INC

SKYW|830879102

319150(+0.0%)

Value:

$27.9B(-12.7%)

Waystar Holding Corp.

WAY|946784105

713040(+208.3%)

Value:

$26.6B(+213.8%)

Genpact LTD

G|G3922B107

523600(+0.0%)

Value:

$26.4B(+17.3%)

RAMBUS INC

RMBS|750917106

507350(+23.9%)

Value:

$26.3B(+21.4%)

Stride, Inc.

LRN|86333M108

207300(+0.0%)

Value:

$26.2B(+21.7%)

Dorman Products, Inc.

DORM|258278100

208520(+16.0%)

Value:

$25.1B(+8.0%)

FLOWSERVE CORP

FLS|34354P105

513184(+9.5%)

Value:

$25.1B(-7.0%)

Zeta Global Holdings Corp.

ZETA|98956A105

1843240(+0.2%)

Value:

$25.0B(-24.5%)

Sportradar Group AG

SRAD|H8088L103

1144700(+57.0%)

Value:

$24.7B(+95.8%)

Freshworks Inc.

FRSH|358054104

1728520(+109.1%)

Value:

$24.4B(+82.5%)

Life Time Group Holdings, Inc.

LTH|53190C102

797000

Value:

$24.1B

MACOM Technology Solutions Holdings, Inc.

MTSI|55405Y100

232520(+29.8%)

Value:

$23.3B(+0.3%)

Frontdoor, Inc.

FTDR|35905A109

599460(+28.2%)

Value:

$23.0B(-9.9%)

Instrument	Shares		Other Manager	Value
Adma Biologics, Inc.(ADMAcusip000899104)	3.4M	QoQ +2.50% (+83.7K) YoY +22.77% (+635.6K)	All Managers (Combined)	$68.0M	QoQ +18.58% (+$10.7M) YoY +269.06% (+$49.6M)
Credo Technology Group Holding Ltd(CRDOcusipG25457105)	1.3M	QoQ +31.29% (-300.3K) YoY +291.39% (+938.0K)	All Managers (Combined)	$50.6M	QoQ -21.54% (-$13.9M) YoY +641.79% (+$43.8M)
Sharkninja, Inc.(SNcusipG8068L108)	500.2K	QoQ +0.17% (-870) YoY +112.65% (+265.0K)	All Managers (Combined)	$41.7M	QoQ -14.17% (-$6.9M) YoY +184.75% (+$27.1M)
Encompass Health Corp(EHCcusip29261A100)	370.7K	QoQ +8.77% (+29.9K) YoY +81.60% (+166.6K)	All Managers (Combined)	$37.5M	QoQ +19.28% (+$6.1M) YoY +122.72% (+$20.7M)
Doximity, Inc.(DOCScusip26622P107)	584.1K	QoQ +1.91% (+11.0K) YoY NEW(+584.1K)	All Managers (Combined)	$33.9M	QoQ +10.76% (+$3.3M) YoY NEW(+$33.9M)
Ambarella Inc(AMBAcusipG037AX101)	568.8K	QoQ +211.17% (+386.0K) YoY NEW(+568.8K)	All Managers (Combined)	$28.6M	QoQ +115.30% (+$15.3M) YoY NEW(+$28.6M)
Itron, Inc.(ITRIcusip465741106)	272.5K	QoQ +36.86% (+73.4K) YoY +116.96% (+146.9K)	All Managers (Combined)	$28.5M	QoQ +32.04% (+$6.9M) YoY +145.67% (+$16.9M)
Skywest Inc(SKYWcusip830879102)	319.1K	QoQ 0.00% (-0) YoY +21.64% (+56.8K)	All Managers (Combined)	$27.9M	QoQ -12.74% (-$4.1M) YoY +53.85% (+$9.8M)
Waystar Holding Corp.(WAYcusip946784105)	713.0K	QoQ +208.27% (+481.7K) YoY NEW(+713.0K)	All Managers (Combined)	$26.6M	QoQ +213.81% (+$18.2M) YoY NEW(+$26.6M)
Genpact Ltd(GcusipG3922B107)	523.6K	QoQ 0.00% (+0) YoY NEW(+523.6K)	All Managers (Combined)	$26.4M	QoQ +17.29% (+$3.9M) YoY NEW(+$26.4M)
Rambus Inc(RMBScusip750917106)	507.4K	QoQ +23.92% (+98.0K) YoY NEW(+507.4K)	All Managers (Combined)	$26.3M	QoQ +21.38% (+$4.6M) YoY NEW(+$26.3M)
Stride, Inc.(LRNcusip86333M108)	207.3K	QoQ 0.00% (+0) YoY +214.09% (+141.3K)	All Managers (Combined)	$26.2M	QoQ +21.71% (+$4.7M) YoY +530.17% (+$22.1M)
Dorman Products, Inc.(DORMcusip258278100)	208.5K	QoQ +16.02% (+28.8K) YoY NEW(+208.5K)	All Managers (Combined)	$25.1M	QoQ +7.95% (+$1.9M) YoY NEW(+$25.1M)
Flowserve Corp(FLScusip34354P105)	513.2K	QoQ +9.51% (-44.6K) YoY +87.03% (+238.8K)	All Managers (Combined)	$25.1M	QoQ -7.00% (-$1.9M) YoY +99.97% (+$12.5M)
Zeta Global Holdings Corp.(ZETAcusip98956A105)	1.8M	QoQ +0.17% (-3.2K) YoY +55.94% (+661.3K)	All Managers (Combined)	$25.0M	QoQ -24.49% (-$8.1M) YoY +93.46% (+$12.1M)
Sportradar Group Ag(SRADcusipH8088L103)	1.1M	QoQ +57.04% (+415.8K) YoY NEW(+1.1M)	All Managers (Combined)	$24.7M	QoQ +95.80% (+$12.1M) YoY NEW(+$24.7M)
Freshworks Inc.(FRSHcusip358054104)	1.7M	QoQ +109.11% (+901.9K) YoY NEW(+1.7M)	All Managers (Combined)	$24.4M	QoQ +82.47% (+$11.0M) YoY NEW(+$24.4M)
Life Time Group Holdings, Inc.(LTHcusip53190C102)	797.0K	QoQ NEW(+797.0K) YoY NEW(+797.0K)	All Managers (Combined)	$24.1M	QoQ NEW(+$24.1M) YoY NEW(+$24.1M)
Macom Technology Solutions Holdings, Inc.(MTSIcusip55405Y100)	232.5K	QoQ +29.84% (+53.5K) YoY NEW(+232.5K)	All Managers (Combined)	$23.3M	QoQ +0.33% (+$77.4K) YoY NEW(+$23.3M)
Frontdoor, Inc.(FTDRcusip35905A109)	599.5K	QoQ +28.22% (-132.0K) YoY +127.67% (+336.2K)	All Managers (Combined)	$23.0M	QoQ -9.88% (-$2.5M) YoY +168.48% (+$14.5M)