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Vanguard Global Advisers, LLC

Position in SPRO — Spero Therapeutics, Inc.

CIK 1811242 MALVERN, PA

Position in SPRO

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$56,235
-$3,308 QoQ
Shares Held
25,446
0.0% QoQ
Ownership
0.044%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#35
of 59 holders
Holding Since
Mar 2026
2 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

Vanguard Global Advisers, LLC holds $820,531,237 across 371 Biotechnology names. SPRO ranks #254 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SPRO

Export CSV
2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $56,235 25,446
2026-03-31 $59,543 25,446