Penbrook Management LLC 13F Portfolio

CIK 1381055 Filing since Q1 2014 Q3 2026 filed Oct 16, 2026
Holdings as of Sep 30, 2026, from the 13F filed Oct 16, 2026.

Portfolio Snapshot

88 positions · Q3 2026

Penbrook Management LLC reported 88 positions worth $161.17M for the quarter ended Sep 30, 2026, up 7.9% on the prior quarter. It opened 5 new positions, added to 11, trimmed 31 and exited 5. Its largest holding is Targa Resources Corp. at 11.1% of the portfolio.

Portfolio Value
$161.17M
+7.9% QoQ · +18.5% YoY
Positions
88
5 new · 5 sold out
Top 10 Concentration
53%
of portfolio value
Largest Position
TRGP 11.1%
Targa Resources Corp.
Net Buying
-$1.13M
$4.66M bought · $5.79M sold
Turnover
3%
of the portfolio traded
Top Sector
Technology
40.3% of value
Track Record
47
quarters on file since Q1 2014

Portfolio Value & Positions

Value Positions

Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.

Sector Allocation

10 sectors
40.25%
Technology
Technology40.25%
Energy20.05%
Healthcare13.77%
Consumer Discretionary8.3%
Financial Services8.05%
Industrials4.91%
Basic Materials2.08%
Real Estate1.16%
Communication Services1.01%
Other0.419%

Quarterly Buying & Selling

Bought Sold

Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.

Position Changes

How many positions were opened, added to, trimmed or closed each quarter.

Sector Allocation Over Time

Share of reported value in each sector at every quarter end.

TechnologyEnergyHealthcareConsumer DiscretionaryFinancial ServicesIndustrialsBasic MaterialsReal EstateCommunication ServicesOtherConsumer StaplesUtilities

Largest Buys

Q3 2026
Holding Change Change % Trade Value Weight
SKYH Sky Harbour Group Corp +177.7K +909.7% $1.68M 1.16%
ALLT Allot Ltd. +102.1K +37.1% $861.72K 1.98%
CVE Cenovus Energy Inc. +12.8K +42.9% $398.45K 0.823%
ELVA Electrovaya Inc. +53.4K +16.4% $349.66K 1.54%
LMT Lockheed Martin Corp +550 – $280.09K 0.174%
TTI Tetra Technologies Inc +43.5K +165.7% $255.34K 0.254%
XOM ExxonMobil Holdings Corp +1,280 – $208.32K 0.129%
NEM NEWMONT Corp +1,780 – $205.31K 0.127%
PAR Par Technology Corp +9,940 +18.5% $136.77K 0.544%
XGN Exagen Inc. +11.3K – $91.87K 0.057%

Largest Sells

Q3 2026
Holding Change Change % Trade Value Weight
DV DoubleVerify Holdings, Inc. -102.7K -100.0% $1.11M Exited
CURI CuriosityStream Inc. -376.3K -49.2% $1.09M 0.702%
OKE Oneok Inc -11.3K -100.0% $983.29K Exited
TRGP Targa Resources Corp. -275 -4.0% $743.35K 11.1%
IOVA Iovance Biotherapeutics, Inc. -20.8K -33.5% $307.51K 0.379%
PAYS Paysign, Inc. -17.9K -31.2% $241.16K 0.33%
AM Antero Midstream Corp -9,900 -100.0% $225.23K Exited
FAF First American Financial Corp -3,000 -100.0% $205.77K Exited
NVO Novo Nordisk A S -4,700 -1.5% $178.18K 7.33%
MGNI Magnite, Inc. -6,350 -5.7% $160.40K 1.66%

New Positions

Q3 2026
Holding Shares Trade Value Weight
LMT Lockheed Martin Corp +550 $280.09K 0.174%
XOM ExxonMobil Holdings Corp +1,280 $208.32K 0.129%
NEM NEWMONT Corp +1,780 $205.31K 0.127%
XGN Exagen Inc. +11.3K $91.87K 0.057%
BAER Bridger Aerospace Group Holdings, Inc. +81.9K $57.52K 0.036%

Closed Positions

Q3 2026
Holding Shares Sold Trade Value Prior Weight
DV DoubleVerify Holdings, Inc. -102.7K $1.11M 0.745%
OKE Oneok Inc -11.3K $983.29K 0.658%
AM Antero Midstream Corp -9,900 $225.23K 0.151%
FAF First American Financial Corp -3,000 $205.77K 0.138%
ONDS Ondas Inc. -10.0K $82.44K 0.055%
Holdings · Q3 2026

88 Positions

As ofSep 30, 2026
Value$161.17M
Top 1053%
Avg position$1.83M
# Activity
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Showing 1–15 of 88 positions 13F filings on SEC EDGAR

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About Penbrook Management LLC’s 13F Portfolio

What are Penbrook Management LLC’s largest holdings?

As of its Q3 2026 13F filing, Penbrook Management LLC’s five largest positions were Targa Resources Corp. (TRGP) at 11.1%, Amazon Com Inc (AMZN) at 8.0%, Novo Nordisk A S (NVO) at 7.3%, Microsoft Corp (MSFT) at 6.9%, Alphabet Inc. (GOOGL) at 4.9% of the reported portfolio.

How much is Penbrook Management LLC’s portfolio worth?

Penbrook Management LLC reported a 13F portfolio worth $161.17M across 88 positions for Q3 2026. That is up 7.9% from the previous quarter.

What did Penbrook Management LLC buy in Q3 2026?

Its largest purchases by value were Sky Harbour Group Corp ($1.68M), Allot Ltd. ($861.72K), Cenovus Energy Inc. ($398.45K). It opened 5 new positions.

What did Penbrook Management LLC sell in Q3 2026?

Its largest sales by value were DoubleVerify Holdings, Inc. ($1.11M), CuriosityStream Inc. ($1.09M), Oneok Inc ($983.29K). It exited 5 positions entirely.

Where does this data come from?

From the Form 13F-HR reports Penbrook Management LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.

Similar-Sized Institutions

by reported 13F value

13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.