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Shay Capital LLC

Position in SPRO — Spero Therapeutics, Inc.

CIK 1723643 NEW YORK, NY

Position in SPRO

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$159,984
-$4,644 QoQ
Shares Held
72,391
+2.9% QoQ
Ownership
0.124%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#24
of 60 holders
Holding Since
Mar 2024
7 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in SPRO Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Shay Capital LLC holds $28,920,887 across 40 Biotechnology names. SPRO ranks #27 (0.6% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SPRO

Export CSV
7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $159,984 72,391
2026-03-31 $164,628 70,354
2025-12-31 $140,473 60,289
2025-09-30 $119,693 63,667
2024-09-30 $33,500 25,000
2024-06-30 $32,500 25,000
2024-03-31 $527,983 306,967