Penbrook Management LLC

Q4 2025 13F-HR Holdings

Location
New York, NY
Holdings as of
12/31/2025
Date filed
1/6/2026
Form type
13F-HR
Num holdings
97
Total value ($000)
$144,979
Net value change ($000)
+1,754 (1.2%)
New positions
5
Sold out positions
12
Turnover %
2.6%
Sector allocation + QoQ delta (equities-only)
Prev filing: 10/22/2025 Next filing: 4/21/2026 SEC filing

Snapshot: Change Analysis

Compared to Q3 2025
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
PL 1,743 42.7%
GOOGL 1,619 28.7%
GOOGL 1,544 27.9%
DV 1,177 NEW
PLAB 986 38.6%
ELVA 949 52.3%
AMZN 586 5.2%
SA 508 21.8%
MCO 444 6.8%
BMY 337 NEW
Top Reduces (Value $000, Stocks/ETFs)
MSFT -1,587 -12.6%
NVO -1,193 -6.9%
AEHR -1,180 -33.7%
TRI -563 -14.6%
CURI -528 -28.6%
ACLS -373 -22.6%
FNF -332 -23.0%
BLDR -332 -100.0%
IREN -291 -100.0%
INVE -254 -100.0%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type