Granahan Investment Management, LLC

Q1 2026 13F-HR Holdings

Location
Waltham, MA
Holdings as of
3/31/2026
Date filed
5/15/2026
Form type
13F-HR
Num holdings
149
Total value ($000)
$2,067,342
Net value change ($000)
-267,990 (-11.5%)
New positions
17
Sold out positions
25
Turnover %
16.8%
Sector allocation + QoQ delta (equities-only)
Prev filing: 2/17/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q4 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)
FPS 60,621 NEW
MOD 38,239 87.7%
YSS 21,452 NEW
NXT 17,654 52.7%
FTAI 14,999 21.9%
TTMI 14,830 86.9%
QXO 13,890 90.0%
ARLO 11,908 251.5%
FIX 11,593 47.7%
CAVA 11,039 81.5%
Top Reduces (Value $000, Stocks/ETFs)
GENI -62,700 -72.4%
ODD -61,202 -100.0%
ZETA -36,959 -69.4%
PHR -32,325 -79.6%
CLBT -31,146 -56.5%
GLBE -29,979 -64.0%
TOST -26,250 -71.3%
MGNI -20,237 -40.0%
KVYO -19,653 -100.0%
COMP -19,368 -58.4%
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