Institutional holders Insiders (Form 4) Congress
% of shares outstanding held
17.0%
Top holders largest 16 of 16 · Δ vs 2025-Q4 # Holder Shares Value % of shares out Δ QoQ 1 1 ARMISTICE CAPITAL, LLC 159,390 159,390 $219,958 7.75% NEW † 2 2 SABBY MANAGEMENT, LLC 114,554 114,554 $158,085 5.57% NEW † 3 3 GEODE CAPITAL MANAGEMENT, LLC 31,743 31,743 $43,804 1.54% ADD 198% 4 4 SUSQUEHANNA INTERNATIONAL GROUP, LLP 12,614 12,614 $17,407 0.61% NEW 5 5 STATE STREET CORP 12,146 12,146 $16,761 0.59% — 6 6 VANGUARD CAPITAL MANAGEMENT LLC 9,644 9,644 $13,309 0.47% NEW 7 7 VANGUARD FIDUCIARY TRUST CO 4,394 4,394 $6,064 0.21% NEW 8 8 Tower Research Capital LLC (TRC) 3,940 3,940 $5,437 0.19% ADD 167% 9 9 UBS Group AG 807 807 $1,113 0.04% ADD 43% 10 10 SBI Securities Co., Ltd. 120 120 $166 0.01% — 11 11 GROUP ONE TRADING LLC 18 18 $25 0.00% — 12 12 ASSETMARK, INC 5 5 $7 0.00% — 13 13 MORGAN STANLEY 2 2 $3 0.00% — 14 14 SOUTHERN MICHIGAN BANK & TRUST 2 2 $3 0.00% NEW 15 15 HARBOUR INVESTMENTS, INC. 1 1 $1 0.00% — 16 16 CITIGROUP INC 1 1 $1 0.00% —
† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.
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 ARMISTICE CAPITAL, LLC — — — — — 159K $219,958 SABBY MANAGEMENT, LLC — — — — — 115K $158,085 GEODE CAPITAL MANAGEMENT, LLC 12K 13K 13K 13K 11K 32K $43,804 SUSQUEHANNA INTERNATIONAL GROUP, LLP — — — — — 13K $17,407 STATE STREET CORP 12K 12K 12K 12K 12K 12K $16,761 VANGUARD CAPITAL MANAGEMENT LLC — — — — — 10K $13,309 VANGUARD FIDUCIARY TRUST CO — — — — — 4K $6,064 Tower Research Capital LLC (TRC) — 437 2K 2K 1K 4K $5,437 UBS Group AG 14K 9K 3K 1K 565 807 $1,113 SBI Securities Co., Ltd. 120 120 120 122 120 120 $166 GROUP ONE TRADING LLC 18 18 18 18 18 18 $25 ASSETMARK, INC 5 5 5 5 5 5 $7 SOUTHERN MICHIGAN BANK & TRUST — — — — — 2 $3 MORGAN STANLEY 607 608 787 608 2 2 $3 CITIGROUP INC — — — 356 1 1 $1
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 % of shares outstanding held 93.3% 1.4% reporting 13F holders 32 10 2015-Q2 2026-Q1 2015-Q2 · 28 holders · % suppressed/unavailable 2015-Q3 · 32 holders · % suppressed/unavailable 2015-Q4 · 28 holders · % suppressed/unavailable 2016-Q1 · 25 holders · % suppressed/unavailable 2016-Q2 · 21 holders · % suppressed/unavailable 2016-Q3 · 16 holders · % suppressed/unavailable 2016-Q4 · 12 holders · % suppressed/unavailable 2017-Q1 · 15 holders · % suppressed/unavailable 2017-Q2 · 16 holders · % suppressed/unavailable 2017-Q3 · 13 holders · % suppressed/unavailable 2017-Q4 · 10 holders · 37.4% of shares out 2018-Q1 · 12 holders · 19.2% of shares out 2018-Q2 · 13 holders · 16.7% of shares out 2018-Q3 · 13 holders · 21.3% of shares out 2018-Q4 · 12 holders · 13.7% of shares out 2019-Q1 · 12 holders · 9.4% of shares out 2019-Q2 · 14 holders · 36.5% of shares out 2019-Q3 · 18 holders · 32.2% of shares out 2019-Q4 · 14 holders · 26.0% of shares out 2020-Q1 · 12 holders · 20.8% of shares out 2020-Q2 · 16 holders · 25.4% of shares out 2020-Q3 · 20 holders · 42.3% of shares out 2020-Q4 · 19 holders · 63.1% of shares out 2021-Q1 · 23 holders · 56.0% of shares out 2021-Q2 · 27 holders · % suppressed/unavailable 2021-Q3 · 21 holders · % suppressed/unavailable 2021-Q4 · 27 holders · % suppressed/unavailable 2022-Q1 · 25 holders · 93.3% of shares out 2022-Q2 · 22 holders · 83.0% of shares out 2022-Q3 · 24 holders · % suppressed/unavailable 2022-Q4 · 29 holders · % suppressed/unavailable 2023-Q1 · 15 holders · 7.9% of shares out 2023-Q2 · 13 holders · 6.7% of shares out 2023-Q3 · 12 holders · 2.3% of shares out 2023-Q4 · 15 holders · 6.8% of shares out 2024-Q1 · 14 holders · 4.0% of shares out 2024-Q2 · 11 holders · 1.4% of shares out 2024-Q3 · 13 holders · 2.6% of shares out 2024-Q4 · 13 holders · 3.8% of shares out 2025-Q1 · 14 holders · 3.7% of shares out 2025-Q2 · 14 holders · 2.9% of shares out 2025-Q3 · 16 holders · 3.2% of shares out 2025-Q4 · 13 holders · 1.9% of shares out 2026-Q1 · 16 holders · 17.0% of shares out Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).
Quarter Holders Shares held % shares out Value held 2026-Q1 16 349,381 17.0% $482,144 2025-Q4 13 39,114 1.9% $77,444 2025-Q3 16 65,469 3.2% $227,175 2025-Q2 14 59,229 2.9%
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.
