Institutional holders Index & fund register Insiders (Form 4) Congress
% of shares outstanding held
—
Shares held (13F)
5,020,197
% of shares outstanding not shown: no SEC cover-page share count falls within 120 days of the 2026-Q1 quarter end, so any percentage would rest on a count that cannot speak for this quarter. Holder share counts are shown as filed.
Top holders largest 17 of 17 · Δ vs 2025-Q4 # Holder Shares Value % of shares out Δ QoQ 1 1 BOOTHBAY FUND MANAGEMENT, LLC 400,000 400,000 $404,000 — — 2 2 Polar Asset Management Partners Inc. 1,250,000 1.3M $26,125 — — 3 3 ARISTEIA CAPITAL, L.L.C. 754,111 754,111 $16,025 — — 4 4 Clear Street Group Inc. 651,899 651,899 $13,625 — — 5 5 Saba Capital Management, L.P. 500,000 500,000 $10,625 — — 6 6 MMCAP International Inc. SPC 500,000 500,000 $10,450 — — 7 7 D. E. Shaw & Co., Inc. 250,000 250,000 $5,150 — — 8 8 WHITEBOX ADVISORS LLC 164,500 164,500 $3,438 — — 9 9 RIVERNORTH CAPITAL MANAGEMENT, LLC 150,000 150,000 $3,135 — — 10 10 LMR Partners LLP 100,001 100,001 $2,090 — — 11 11 Aristides Capital LLC 100,000 100,000 $2,090 — — 12 12 Periscope Capital Inc. 75,000 75,000 $1,594 — — 13 13 TWO SIGMA SECURITIES, LLC 56,864 56,864 $1,171 — — 14 14 FLOW TRADERS U.S. LLC 26,512 26,512 $1,000 — — 15 15 MARINER INVESTMENT GROUP LLC 30,000 30,000 $618 — — 16 16 WOLVERINE ASSET MANAGEMENT LLC 11,110 11,110 $232 — — 17 17 TORONTO DOMINION BANK 200 200 $4 — —
Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
Holder trends· top 15 holders · shares held over 6 quarters green added · red trimmed6 12 24 Max
Holder 2024-Q4 2025-Q1 2025-Q2 2025-Q3 2025-Q4 2026-Q1 Latest value BOOTHBAY FUND MANAGEMENT, LLC 400K 400K 400K 400K 400K 400K $404,000 Polar Asset Management Partners Inc. 1.6M 1.6M 1.3M 1.3M 1.3M 1.3M $26,125 ARISTEIA CAPITAL, L.L.C. 447K 754K 754K 754K 754K 754K $16,025 Clear Street Group Inc. — — — 606K 652K 652K $13,625 Saba Capital Management, L.P. 500K 500K 500K 500K 500K 500K $10,625 MMCAP International Inc. SPC 500K 500K 500K 500K 500K 500K $10,450 D. E. Shaw & Co., Inc. 250K 250K 250K 250K 250K 250K $5,150 WHITEBOX ADVISORS LLC 165K 165K 165K 165K 165K 165K $3,438 RIVERNORTH CAPITAL MANAGEMENT, LLC 150K 150K 150K 150K 150K 150K $3,135 LMR Partners LLP — 100K 100K 100K 100K 100K $2,090 Aristides Capital LLC 100K 100K 100K 100K 100K 100K $2,090 Periscope Capital Inc. 138K 75K 75K 75K 75K 75K $1,594 TWO SIGMA SECURITIES, LLC — — — — 58K 57K $1,171 FLOW TRADERS U.S. LLC 19K 23K 23K 26K 26K 27K $1,000 MARINER INVESTMENT GROUP LLC 30K 30K 30K 30K 30K 30K $618
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Institutional footprint by quarter reporting 13F holders 32 17 2022-Q2 2026-Q1 2022-Q2 · 25 holders · % suppressed/unavailable 2022-Q3 · 25 holders · % suppressed/unavailable 2022-Q4 · 28 holders · % suppressed/unavailable 2023-Q1 · 31 holders · % suppressed/unavailable 2023-Q2 · 32 holders · % suppressed/unavailable 2023-Q3 · 30 holders · % suppressed/unavailable 2023-Q4 · 29 holders · % suppressed/unavailable 2024-Q1 · 27 holders · % suppressed/unavailable 2024-Q2 · 26 holders · % suppressed/unavailable 2024-Q3 · 28 holders · % suppressed/unavailable 2024-Q4 · 26 holders · % suppressed/unavailable 2025-Q1 · 22 holders · % suppressed/unavailable 2025-Q2 · 21 holders · % suppressed/unavailable 2025-Q3 · 19 holders · % suppressed/unavailable 2025-Q4 · 21 holders · % suppressed/unavailable 2026-Q1 · 17 holders · % suppressed/unavailable Holder count only — too few computable %-of-shares-outstanding quarters for a % pane. Line breaks are quarters with no 13F record, never interpolated.
Quarter Holders Shares held % shares out Value held 2026-Q1 17 5,020,197 — $501,372 2025-Q4 21 5,286,473 — $1M 2025-Q3 19
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
