Institutional holders Insiders (Form 4) Congress
% of shares outstanding held
—
Shares held (13F)
1,320,508
Top holders largest 19 of 19 · Δ vs 2025-Q4 # Holder Shares Value % of shares out Δ QoQ 1 1 Clear Street Group Inc. 296,852 296,852 $29,032 — — 2 2 Polar Asset Management Partners Inc. 280,100 280,100 $21,008 — — 3 3 TORONTO DOMINION BANK 170,117 170,117 $16,671 — — 4 4 SECURITY BENEFIT LIFE INSURANCE CO /KS/ 118,032 118,032 $7,094 — — 5 5 JANE STREET GROUP, LLC 66,411 66,411 $6,495 — — 6 6 D. E. Shaw & Co., Inc. 90,749 90,749 $4,846 — — 7 7 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 65,694 65,694 $3,948 — — 8 8 Limestone Investment Advisors LP 38,668 38,668 $3,782 — — 9 9 Vestcor Inc 29,740 29,740 $2,000 — — 10 10 TENOR CAPITAL MANAGEMENT Co., L.P. 20,000 20,000 $1,956 — — 11 11 LMR Partners LLP 20,000 20,000 $1,956 — — 12 12 GOLDMAN SACHS GROUP INC 32,268 32,268 $1,939 — — 13 13 Summit Trail Advisors, LLC 25,000 25,000 $1,502 — — 14 14 Calamos Advisors LLC 20,000 20,000 $1,501 — — 15 15 DUPONT CAPITAL MANAGEMENT CORP 16,000 16,000 $1,201 — — 16 16 OMERS ADMINISTRATION Corp 12,000 12,000 $900 — — 17 17 Silver Rock Financial LP 14,348 14,348 $862 — — 18 18 WOLVERINE ASSET MANAGEMENT LLC 3,529 3,529 $345 — TRIM -23% 19 19 MORGAN STANLEY 1,000 1,000 $60 — —
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 Clear Street Group Inc. — — — 667K 297K 297K $29,032 Polar Asset Management Partners Inc. 280K 280K 280K 280K 280K 280K $21,008 TORONTO DOMINION BANK — — 150K 149K 170K 170K $16,671 SECURITY BENEFIT LIFE INSURANCE CO /KS/ 118K 118K 118K 118K 118K 118K $7,094 JANE STREET GROUP, LLC 66K 66K 66K 66K 66K 66K $6,495 D. E. Shaw & Co., Inc. 91K 91K 91K 91K 91K 91K $4,846 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 66K 66K 66K 66K 66K 66K $3,948 Limestone Investment Advisors LP — — 39K 39K 39K 39K $3,782 Vestcor Inc 30K 30K 30K 30K 30K 30K $2,000 LMR Partners LLP 20K 20K 20K 20K 20K 20K $1,956 TENOR CAPITAL MANAGEMENT Co., L.P. 20K 20K 20K 20K 20K 20K $1,956 GOLDMAN SACHS GROUP INC 32K 32K 32K 32K 32K 32K $1,939 Summit Trail Advisors, LLC — — 25K 25K 25K 25K $1,502 Calamos Advisors LLC 20K 20K 20K 20K 20K 20K $1,501 DUPONT CAPITAL MANAGEMENT CORP 16K 16K 16K 16K 16K 16K $1,201
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 42 19 2021-Q2 2026-Q1 2021-Q2 · 30 holders · % suppressed/unavailable 2021-Q3 · 33 holders · % suppressed/unavailable 2021-Q4 · 37 holders · % suppressed/unavailable 2022-Q1 · 31 holders · % suppressed/unavailable 2022-Q2 · 39 holders · % suppressed/unavailable 2022-Q3 · 37 holders · % suppressed/unavailable 2022-Q4 · 41 holders · % suppressed/unavailable 2023-Q1 · 42 holders · % suppressed/unavailable 2023-Q2 · 40 holders · % suppressed/unavailable 2023-Q3 · 42 holders · % suppressed/unavailable 2023-Q4 · 37 holders · % suppressed/unavailable 2024-Q1 · 38 holders · % suppressed/unavailable 2024-Q2 · 37 holders · % suppressed/unavailable 2024-Q3 · 29 holders · % suppressed/unavailable 2024-Q4 · 26 holders · % suppressed/unavailable 2025-Q1 · 23 holders · % suppressed/unavailable 2025-Q2 · 26 holders · % suppressed/unavailable 2025-Q3 · 23 holders · % suppressed/unavailable 2025-Q4 · 20 holders · % suppressed/unavailable 2026-Q1 · 19 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 19 1,320,508 — $107,098 2025-Q4 20 1,333,234 — $100,598 2025-Q3 23 1,994,729 — $139,716 2025-Q2 26 2,174,411 — $300,968 2025-Q1 23 2,031,107 — $162,339 2024-Q4 26 2,340,003 — $373,520 2024-Q3 29 2,470,903 — $589,062 2024-Q2 37 3,198,892 — $270,487 2024-Q1 38 3,249,384 — $1M 2023-Q4 37 3,106,130 — $423,741 2023-Q3 42 3,226,670 — $187,131 2023-Q2 40 3,159,951 — $88,448 2023-Q1
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.
