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Equibles

BOOTHBAY FUND MANAGEMENT, LLC

Position in MBX — MBX Biosciences, Inc.

CIK 1549230 NEW YORK, NY
Back to MBX Full portfolio

Position in MBX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$3,883,485
-$2,326,777 QoQ
Shares Held
70,353
-66.2% QoQ
Ownership
0.146%
of shares outstanding
% of Portfolio
0.08%
of 13F equity value
Holder Rank
#57
of 172 holders
Holding Since
Sep 2025
3 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in MBX Over Time

Shares Held

Position Value (USD)

Derivatives in MBX

reported options exposure · as of Sep 30, 2025
CallValue
$1,274,000
CallShares
72,800
PutValue
$1,274,000
PutShares
72,800

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

BOOTHBAY FUND MANAGEMENT, LLC holds $666,641,771 across 159 Biotechnology names. MBX ranks #40 (0.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 RVMD
Revolution Medicines, Inc.
 465,787 $87,232,589
2 ABVX
Abivax S.A.
 563,367 $75,074,286
3 EXEL
Exelixis, Inc.
 804,095 $43,750,808
4 PCVX
Vaxcyte, Inc.
 534,163 $31,050,895
5 COGT
Cogent Biosciences, Inc.
 692,825 $26,812,327
6 CGEM
Cullinan Therapeutics, Inc.
 1,082,611 $19,714,346
7 TNGX
Tango Therapeutics, Inc.
 500,497 $15,645,536
8 AVTX
Avalo Therapeutics, Inc.
 702,051 $12,973,902

All Filings in MBX

Export CSV
5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $3,883,485 70,353
2026-03-31 $6,210,262 208,049
2025-09-30 $1,274,000 72,800
2025-09-30 $1,274,000 72,800
2025-09-30 $691,215 39,498