Institutional holders Insiders (Form 4) Congress
% of shares outstanding held
14.5%
Top holders largest 8 of 8 · Δ vs 2025-Q4 # Holder Shares Value % of shares out Δ QoQ 1 1 Potomac Capital Management, Inc. 408,400 408,400 $633,020 6.75% — 2 2 Summit Trail Advisors, LLC 331,436 331,436 $513,726 5.48% — 3 3 GEODE CAPITAL MANAGEMENT, LLC 57,869 57,869 $89,700 0.96% ADD 415% 4 4 CITADEL ADVISORS LLC 43,513 43,513 $67,445 0.72% NEW 5 5 TWO SIGMA INVESTMENTS, LP 17,105 17,105 $26,513 0.28% TRIM -36% 6 6 MORGAN STANLEY 10,000 10,000 $15,500 0.17% — 7 7 VANGUARD CAPITAL MANAGEMENT LLC 7,776 7,776 $12,053 0.13% NEW 8 8 UBS Group AG 478 478 $741 0.01% TRIM -70%
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 8 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 Potomac Capital Management, Inc. — — — — 408K 408K $633,020 Summit Trail Advisors, LLC 2.5M 196K 236K 331K 331K 331K $513,726 GEODE CAPITAL MANAGEMENT, LLC 76K — 11K 10K 11K 58K $89,700 CITADEL ADVISORS LLC — — — 50K — 44K $67,445 TWO SIGMA INVESTMENTS, LP — — — — 27K 17K $26,513 MORGAN STANLEY 7K 700 700 700 10K 10K $15,500 VANGUARD CAPITAL MANAGEMENT LLC — — — — — 8K $12,053 UBS Group AG — — 5K — 2K 478 $741
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 78.6% 5.6% reporting 13F holders 22 1 2014-Q2 2026-Q1 2014-Q2 · 1 holders · 19.5% of shares out 2014-Q3 · 1 holders · 19.5% of shares out 2014-Q4 · 1 holders · 26.1% of shares out 2015-Q1 · 1 holders · 19.5% of shares out 2015-Q2 · 1 holders · 19.5% of shares out 2015-Q3 · 14 holders · 53.5% of shares out 2015-Q4 · 15 holders · 63.0% of shares out 2016-Q1 · 14 holders · 48.8% of shares out 2016-Q2 · 17 holders · 48.4% of shares out 2016-Q3 · 15 holders · 49.0% of shares out 2016-Q4 · 15 holders · 57.4% of shares out 2017-Q1 · 13 holders · 68.6% of shares out 2017-Q2 · 14 holders · 64.5% of shares out 2017-Q3 · 14 holders · 66.4% of shares out 2017-Q4 · 14 holders · 68.4% of shares out 2018-Q1 · 13 holders · 76.5% of shares out 2018-Q2 · 12 holders · 71.5% of shares out 2018-Q3 · 15 holders · 67.1% of shares out 2018-Q4 · 16 holders · 49.2% of shares out 2019-Q1 · 18 holders · 60.7% of shares out 2019-Q2 · 17 holders · 42.7% of shares out 2019-Q3 · 22 holders · 16.7% of shares out 2019-Q4 · 16 holders · 12.7% of shares out 2020-Q1 · 16 holders · 11.5% of shares out 2020-Q2 · 16 holders · 12.5% of shares out 2020-Q3 · 13 holders · 11.5% of shares out 2020-Q4 · 14 holders · 13.5% of shares out 2021-Q1 · 16 holders · 14.6% of shares out 2021-Q2 · 19 holders · 19.8% of shares out 2021-Q3 · 18 holders · 37.4% of shares out 2021-Q4 · 14 holders · 43.8% of shares out 2022-Q1 · 17 holders · 49.9% of shares out 2022-Q2 · 14 holders · 50.3% of shares out 2022-Q3 · 13 holders · 54.9% of shares out 2022-Q4 · 20 holders · 57.5% of shares out 2023-Q1 · 15 holders · 56.7% of shares out 2023-Q2 · 13 holders · 57.0% of shares out 2023-Q3 · 18 holders · 58.1% of shares out 2023-Q4 · 19 holders · 60.9% of shares out 2024-Q1 · 17 holders · 74.3% of shares out 2024-Q2 · 17 holders · 74.2% of shares out 2024-Q3 · 18 holders · 73.0% of shares out 2024-Q4 · 19 holders · 78.6% of shares out 2025-Q1 · 10 holders · 5.6% of shares out 2025-Q2 · 12 holders · 6.3% of shares out 2025-Q3 · 10 holders · 7.4% of shares out 2025-Q4 · 10 holders · 13.9% of shares out 2026-Q1 · 8 holders · 14.5% 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 8 876,577 14.5% $1M 2025-Q4 10 839,662 13.9% $906,836 2025-Q3 10 445,905
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.
