Shannon River Fund Management LLC

Q2 2026 13F-HR Detailed Holdings

Location
New York, NY
Holdings as of
6/30/2026
Date filed
8/13/2026
Form type
13F-HR
Num holdings
37
Total value ($000)
$1,120,394
Net value change ($000)
+596,314 (113.8%)
New positions
22
Sold out positions
13
Turnover %
61.8%
Sector allocation + QoQ delta (equities-only)

Holdings broken out by other managers reported in the original SEC filing. View aggregated holdings

Prev filing: 5/14/2026 Next filing: — SEC filing
You are on the SEC detailed breakdown page. Rows are shown as reported in the filing (including other manager, discretion, and voting authority fields), and are not merged like the standard holdings view. Switch to aggregated holdings.

Snapshot: Change Analysis

Compared to Q1 2026
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)
AMD 61,432 NEW
KLIC 44,780 NEW
TWLO 41,545 NEW
FLEX 41,187 202.2%
CIEN 39,882 NEW
QUANTINUUM INC 38,365 NEW
UTI 38,070 NEW
CLS 35,991 238.9%
IDCC 35,867 219.5%
TTWO 34,504 NEW
Top Reduces (Value $000, Stocks/ETFs)
MRVL -55,822 -100.0%
AXON -20,148 -100.0%
TOST -19,406 -100.0%
LGN -19,063 -100.0%
ADTN -15,347 -100.0%
UUUU -9,263 -100.0%
AMBA -5,917 -100.0%
APP -5,763 -100.0%
LYV -5,340 -11.9%
ALAB -5,194 -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 Discretion Other Manager Sole Shared None