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Robert Grundstein

Sabby Management, Llc

Assets Managed
$45.073M
Holdings
28
Last Quarter
2026 - Q1
Filed Date
1mo 9d ago
Growth Rate
-35.15%(2Q avg: -27.37%)
Sustained Growth
0 quarters

Portfolio positions

This chart displays the top 10 holdings in Sabby Management, Llc's 2026 - Q1 portfolio, based on their 13F SEC filing, out of a total of 28 positions.

Assets under management

The assets under management (AUM) of Sabby Management, Llc over the past 10 years (40 quarters) show continuous growth in total asset value over the last 0 quarters. As of the latest 13F SEC filing for 2026 - Q1, they manage 45.073M in assets, with a quarterly growth rate of -35.15% and a 2-quarter average growth rate of -27.37%. The portfolio is managed by Robert Grundstein, and others.

Portfolio holdings

InvestmentPortfolio %Reported Value
ur-4⤦
State Str Spdr S&p 500 Etf T
Recent Activity
Increased 28.09%
64.5%
$29.07M↓ Put
447 shares@ $65034.0 avg price
ur-1⤦
Ishares Tr
Recent Activity
Decreased -53.84%
16.51%
$7.44M↓ Put
300 shares@ $24800.0 avg price
SPY
Spdr S&p 500 Etf Trust
Recent Activity
Increased 716.12%
3.95%
$1.778M
2,734 shares@ $650.35 avg price
ur-2⤦
Gevo Inc
Recent Activity
Decreased -16.28%
3.19%
$1.434M↓ Put
5,252 shares@ $273.0 avg price
ur-1⤦
Abivax Sa
Recent Activity
Decreased -51.87%
1.91%
$857,395↑ Call
77 shares@ $11135.0 avg price
PRTG
Portage Biotech Inc
Recent Activity
New Position
1.46%
$654,785
2.072M shares@ $0.32 avg price
BCTXL
Briacell Therapeutics Corp
Recent Activity
New Position
0.88%
$392,145
380,686 shares@ $1.04 avg price
SNES
Senestech Inc
Recent Activity
Increased 3.79%
0.8%
$358,394
218,533 shares@ $1.64 avg price
DSY
Big Tree Cloud Holdings Lt-a
Recent Activity
New Position
0.75%
$337,147
137,611 shares@ $2.46 avg price
ur-2⤦
Zevra Therapeutics Inc
Recent Activity
Increased 3.98%
0.71%
$316,880↓ Put
340 shares@ $932.0 avg price

1-10 of 28