Penbrook Management LLC Top Holdings and 13F Report (2026)

About Penbrook Management LLC

Investment Activity

Penbrook Management LLC has $132.06 million in total holdings as of March 31, 2026.
Penbrook Management LLC owns shares of 93 different stocks, but just 37 companies or ETFs make up 80% of its holdings.
Approximately 6.71% of the portfolio was purchased this quarter.
About 11.91% of the portfolio was sold this quarter.
This quarter, Penbrook Management LLC has purchased 97 new stocks and bought additional shares in 14 stocks.
Penbrook Management LLC sold shares of 28 stocks and completely divested from 12 stocks this quarter.

Largest Holdings

Novo Nordisk A/S: $11,620,350
Amazon.com: $10,780,055
Microsoft: $8,234,431
Alphabet: $6,662,765
Alphabet: $6,469,840

Largest New Holdings this Quarter

G72800108 - Prothena: $2,641,118 Holding
30226D106 - Extreme Networks: $1,259,557 Holding
20825C104 - ConocoPhillips: $267,300 Holding
03676B102 - Antero Midstream: $225,720 Holding
30231G102 - ExxonMobil: $217,164 Holding

Largest Purchases this Quarter

Prothena: 271,720 shares (about $2.64M)
Extreme Networks: 83,525 shares (about $1.26M)
CryoPort: 132,940 shares (about $1.10M)
CuriosityStream: 327,850 shares (about $970.44K)
Magnite: 81,075 shares (about $963.17K)

Largest Sales this Quarter

Planet Labs PBC: 189,375 shares (about $5.29M)
Aehr Test Systems: 35,385 shares (about $1.31M)
Popular: 6,350 shares (about $851.98K)
Photronics: 13,950 shares (about $563.72K)
Invesco QQQ: 945 shares (about $545.43K)

Sector Allocation Over Time

Selling

Neutral

Buying

Latest 13F Holdings and Changes Since Previous Quarterly Filing

Issuer Name	Holdings Value	Approximate Purchase/Sale	Change in Shares	Shares Held	% of Portfolio	Sector
NVO Novo Nordisk A/S	$11,620,350	$7,350 ▼	-0.1%	316,200	8.8%	Medical
AMZN Amazon.com	$10,780,055		0.0%	51,760	8.2%	Retail/Wholesale
MSFT Microsoft	$8,234,431	$186,936 ▼	-2.2%	22,245	6.2%	Computer and Technology
GOOGL Alphabet	$6,662,765		0.0%	23,170	5.0%	Computer and Technology
GOOG Alphabet	$6,469,840		0.0%	22,554	4.9%	Computer and Technology
MCO Moody's	$5,933,000		0.0%	13,600	4.5%	Finance
PLAB Photronics	$3,908,859	$563,719 ▼	-12.6%	96,730	3.0%	Computer and Technology
PL Planet Labs PBC	$2,959,066	$5,293,030 ▼	-64.1%	105,870	2.2%	Computer and Technology
AEHR Aehr Test Systems	$2,948,416	$1,312,076 ▼	-30.8%	79,515	2.2%	Computer and Technology
SA Seabridge Gold	$2,720,356		0.0%	95,990	2.1%	Basic Materials
VET Vermilion Energy	$2,717,719		0.0%	197,825	2.1%	Energy
PRTA Prothena	$2,641,118	$2,641,118 ▲	New Holding	271,720	2.0%	Medical
VMD Viemed Healthcare	$2,508,785	$7,828 ▲	0.3%	272,398	1.9%	Medical
ELECTROVAYA INC COM NEW	$2,298,667	$424,196 ▼	-15.6%	295,356	1.7%	Stock
THOMSON REUTERS CORP COM	$2,229,164	$15,657 ▼	-0.7%	24,774	1.7%	Stock
BX Blackstone	$2,087,068	$385,216 ▲	22.6%	18,150	1.6%	Finance
ALKT Alkami Technology	$2,000,823		0.0%	127,685	1.5%	Computer and Technology
CURI CuriosityStream	$1,998,444	$970,436 ▲	94.4%	675,150	1.5%	Consumer Discretionary
NNY Nuveen New York Municipal Valu	$1,784,620		0.0%	213,727	1.4%	Finance
TRGP Targa Resources	$1,728,031	$34,099 ▼	-1.9%	6,892	1.3%	Energy
BRK.B Berkshire Hathaway	$1,581,360	$23,960 ▼	-1.5%	3,300	1.2%	Finance
CYRX CryoPort	$1,538,217	$1,100,743 ▲	251.6%	185,775	1.2%	Transportation
VZ Verizon Communications	$1,500,929	$62,047 ▼	-4.0%	29,899	1.1%	Computer and Technology
ET Energy Transfer	$1,437,637		0.0%	74,489	1.1%	Energy
CSCO Cisco Systems	$1,423,776		0.0%	18,350	1.1%	Computer and Technology
SONY Sony	$1,417,950		0.0%	68,500	1.1%	Consumer Discretionary
WMB Williams Companies	$1,392,281		0.0%	19,130	1.1%	Energy
MESOBLAST LTD SPONS ADR	$1,339,213	$7,690 ▼	-0.6%	87,075	1.0%	ADR
MGNI Magnite	$1,332,817	$963,171 ▲	260.6%	112,190	1.0%	Computer and Technology
ADP Automatic Data Processing	$1,280,034		0.0%	6,300	1.0%	Computer and Technology
EXTR Extreme Networks	$1,259,557	$1,259,557 ▲	New Holding	83,525	1.0%	Computer and Technology
HESM Hess Midstream Partners	$1,168,237		0.0%	30,055	0.9%	Energy
ABNB Airbnb	$1,130,206		0.0%	8,950	0.9%	Consumer Discretionary
ACLS Axcelis Technologies	$1,125,802	$353,704 ▼	-23.9%	12,095	0.9%	Computer and Technology
ABBV AbbVie	$1,124,423	$13,049 ▼	-1.1%	5,170	0.9%	Medical
USAC USA Compression Partners	$1,112,950		0.0%	41,038	0.8%	Energy
SPY SPDR S&P 500 ETF Trust	$1,043,795	$74,789 ▼	-6.7%	1,605	0.8%	Finance
OKE ONEOK	$1,022,310		0.0%	11,310	0.8%	Energy
DV DoubleVerify	$977,645		0.0%	102,910	0.7%	Computer and Technology
NPK INTERNATIONAL INC COM SHS	$974,452		0.0%	67,250	0.7%	Stock
META Meta Platforms	$972,621		0.0%	1,700	0.7%	Computer and Technology
MRVL Marvell Technology	$963,756		0.0%	9,730	0.7%	Computer and Technology
NVDA NVIDIA	$910,891		0.0%	5,223	0.7%	Computer and Technology
DAIO Data I/O	$902,830		0.0%	356,850	0.7%	Computer and Technology
SHEL Shell	$874,200		0.0%	9,400	0.7%	Energy
NVS Novartis	$846,235	$10,693 ▼	-1.2%	5,540	0.6%	Medical
CVE Cenovus Energy	$792,716		0.0%	29,880	0.6%	Energy
ASUR Asure Software	$770,861	$3,440 ▲	0.4%	89,635	0.6%	Computer and Technology
SGOL abrdn Physical Gold Shares ETF	$765,456		0.0%	17,155	0.6%	ETF
BPOP Popular	$737,935	$851,980 ▼	-53.6%	5,500	0.6%	Finance
EMR Emerson Electric	$694,406		0.0%	5,300	0.5%	Industrials
WES Western Midstream Partners	$654,603		0.0%	15,900	0.5%	Energy
RRC Range Resources	$643,363		0.0%	14,240	0.5%	Energy
REGN Regeneron Pharmaceuticals	$606,522	$9,272 ▼	-1.5%	785	0.5%	Medical
QQQ Invesco QQQ	$533,891	$545,435 ▼	-50.5%	925	0.4%	Finance
LINC Lincoln Educational Services	$518,263	$174,354 ▼	-25.2%	12,740	0.4%	Consumer Discretionary
FBP First BanCorp.	$501,960	$457,104 ▼	-47.7%	23,500	0.4%	Finance
PIM Putnam Mast Int	$480,896		0.0%	147,063	0.4%	Finance
PAR PAR Technology	$476,880	$212,746 ▲	80.5%	35,775	0.4%	Business Services
POWI Power Integrations	$471,040		0.0%	9,200	0.4%	Computer and Technology
KLIC Kulicke and Soffa Industries	$466,612		0.0%	7,100	0.4%	Computer and Technology
BLFS BioLife Solutions	$441,797	$3,816 ▲	0.9%	23,155	0.3%	Medical
DMLP Dorchester Minerals	$439,697		0.0%	16,225	0.3%	Energy
EPD Enterprise Products Partners	$432,397		0.0%	11,427	0.3%	Energy
FNF Fidelity National Financial	$425,211	$517,275 ▼	-54.9%	9,168	0.3%	Finance
AAPL Apple	$388,044		0.0%	1,529	0.3%	Computer and Technology
BMY Bristol Myers Squibb	$379,062		0.0%	6,250	0.3%	Medical
OSS One Stop Systems	$353,821		0.0%	46,740	0.3%	Computer and Technology
PAYS Paysign	$329,131	$147,264 ▲	81.0%	55,785	0.2%	Business Services
RSP Invesco S&P 500 Equal Weight ETF	$320,506		0.0%	1,670	0.2%	ETF
IBM International Business Machines	$310,986	$83,382 ▼	-21.1%	1,283	0.2%	Computer and Technology
CVX Chevron	$284,901		0.0%	1,377	0.2%	Energy
COP ConocoPhillips	$267,300	$267,300 ▲	New Holding	2,025	0.2%	Energy
KOPN Kopin	$257,793	$900 ▼	-0.3%	114,575	0.2%	Computer and Technology
BLZE Backblaze	$248,917	$2,760 ▲	1.1%	72,150	0.2%	Computer and Technology
SPLG SPDR Portfolio S&P 500 ETF	$243,397	$1,531 ▼	-0.6%	3,180	0.2%	ETF
REAVES UTIL INCOME FD COM SH BEN INT	$240,590	$3,928 ▲	1.7%	6,125	0.2%	CEF
JEPI JPMorgan Equity Premium Income ETF	$239,473		0.0%	4,225	0.2%	ETF
AM Antero Midstream	$225,720	$225,720 ▲	New Holding	9,900	0.2%	Energy
TTI Tetra Technologies	$225,013	$149,654 ▼	-39.9%	26,410	0.2%	Energy
HTGC Hercules Capital	$222,450	$4,328 ▲	2.0%	15,060	0.2%	Finance
XOM ExxonMobil	$217,164	$217,164 ▲	New Holding	1,280	0.2%	Energy
NKE NIKE	$209,167	$3,961 ▲	1.9%	3,960	0.2%	Consumer Discretionary
MRK Merck & Co., Inc.	$204,493	$204,493 ▲	New Holding	1,700	0.2%	Medical
VKQ Inv Vk Mun Tr	$190,400		0.0%	20,000	0.1%	Finance
GBDC Golub Capital BDC	$185,848	$113,940 ▼	-38.0%	14,680	0.1%	Finance
NUV Nuveen Municipal Value Fund	$179,800		0.0%	20,000	0.1%	Finance
IOVA Iovance Biotherapeutics	$148,981	$29,835 ▲	25.0%	42,445	0.1%	Medical
DX Dynex Capital	$128,238	$128,238 ▲	New Holding	10,050	0.1%	Finance
AQST Aquestive Therapeutics	$106,094	$68,869 ▼	-39.4%	25,565	0.1%	Medical
ONDS Ondas	$90,445		0.0%	10,005	0.1%	Computer and Technology
PROF Profound Medical	$79,704	$79,704 ▲	New Holding	12,300	0.1%	Medical
XGN Exagen	$39,990	$300 ▼	-0.7%	13,330	0.0%	Medical
SYF Synchrony Financial	$0	$1,293,165 ▼	-100.0%	0	0.0%	Finance
COHU Cohu	$0	$891,241 ▼	-100.0%	0	0.0%	Computer and Technology
GPN Global Payments	$0	$395,901 ▼	-100.0%	0	0.0%	Business Services
BBSI Barrett Business Services	$0	$318,648 ▼	-100.0%	0	0.0%	Business Services
FAF First American Financial	$0	$264,192 ▼	-100.0%	0	0.0%	Finance
WBS Webster Financial	$0	$263,089 ▼	-100.0%	0	0.0%	Finance
AFL Aflac	$0	$215,027 ▼	-100.0%	0	0.0%	Finance

Showing largest 100 holdings. View all holdings.

More Institutional Buying and Selling Information

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Penbrook Management LLC Top Holdings and 13F Report (2026)

About Penbrook Management LLC

Investment Activity

Largest Holdings

Largest New Holdings this Quarter

Largest Purchases this Quarter

Largest Sales this Quarter

Sector Allocation Over Time

Latest 13F Holdings and Changes Since Previous Quarterly Filing

More Institutional Buying and Selling Information

Best-in-Class Portfolio Monitoring

Stock Ideas and Recommendations

Advanced Stock Screeners and Research Tools

About MarketBeat

MarketBeat Products

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Penbrook Management LLC Top Holdings and 13F Report (2026)

About Penbrook Management LLC

Investment Activity

Largest Holdings

Largest New Holdings this Quarter

Largest Purchases this Quarter

Largest Sales this Quarter

Sector Allocation Over Time

Map of 500 Largest Holdings ofPenbrook Management LLC

Latest 13F Holdings and Changes Since Previous Quarterly Filing

More Institutional Buying and Selling Information

MarketBeat All Access Features

Best-in-Class Portfolio Monitoring

Stock Ideas and Recommendations

Advanced Stock Screeners and Research Tools