Granahan Investment Management, LLC

Q4 2025 13F-HR Holdings

Location
Waltham, MA
Holdings as of
12/31/2025
Date filed
2/17/2026
Form type
13F-HR
Num holdings
157
Total value ($000)
$2,335,332
Net value change ($000)
-107,156 (-4.4%)
New positions
27
Sold out positions
16
Turnover %
10.6%
Sector allocation + QoQ delta (equities-only)
Prev filing: 11/14/2025 Next filing: — 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)
ZETA 28,541 115.4%
FTAI 23,765 53.3%
ONTO 21,464 224.1%
WLTH 18,837 NEW
STRL 18,113 NEW
CRS 17,959 27.1%
MRX 17,353 48.9%
TTMI 17,069 NEW
MOD 17,016 64.0%
UMAC 14,708 NEW
Top Reduces (Value $000, Stocks/ETFs)
PRCH -55,883 -34.6%
FIX -52,256 -68.3%
SPSC -38,825 -94.0%
LEU -34,032 -65.1%
MGNI -33,786 -40.1%
ODD -32,650 -34.8%
DSGX -17,434 -85.7%
CSGP -16,613 -72.9%
ACHR -15,283 -54.3%
FOUR -15,233 -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