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Anson Funds Management LP

Position in SPRO — Spero Therapeutics, Inc.

CIK 1491072 DALLAS, TX

Position in SPRO

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$987,377
-$469,017 QoQ
Shares Held
421,956
-32.5% QoQ
Ownership
0.725%
of shares outstanding
% of Portfolio
0.15%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2022
15 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

Anson Funds Management LP holds $75,470,163 across 8 Biotechnology names.

# Ticker Company Shares Value (USD) Open

All Filings in SPRO

Export CSV
15 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $987,377 421,956
2025-12-31 $1,456,394 625,062
2025-09-30 $3,014,709 1,603,569
2025-06-30 $4,684,860 1,615,469
2025-03-31 $2,735,231 3,798,932
2024-12-31 $3,955,082 3,839,886
2024-09-30 $5,025,603 3,750,450
2024-06-30 $4,875,585 3,750,450
2024-03-31 $6,450,774 3,750,450
2023-12-31 $6,317,617 4,297,699
2023-09-30 $5,033,082 4,159,572
2023-06-30 $4,995,049 3,444,862
2023-03-31 $4,850,049 3,344,862
2022-12-31 $5,223,921 3,019,608
2022-09-30 $2,947,744 1,473,872