| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | Stonepine Capital Management, LLC | 61,00061,000 | $145,790 | 7.52% | ADD 25% |
| 2 | Ikarian Capital, LLC | 45,83045,830 | $109,992 | 5.65% | — |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | 23,18923,189 | $55,653 | 2.86% | NEW |
| 4 | BOOTHBAY FUND MANAGEMENT, LLC | 13,52413,524 | $32,322 | 1.67% | — |
| 5 | Tower Research Capital LLC (TRC) | 1,3101,310 | $3,131 | 0.16% | NEW |
| 6 | UBS Group AG | 729729 | $1,742 | 0.09% | ADD 19% |
| 7 | Sound Income Strategies, LLC | 1616 | $36 | 0.00% | — |
| 8 | BARRETT & COMPANY, INC. | 88 | $19 | 0.00% | — |
| 9 | MAI Capital Management | 33 | $8 | 0.00% | — |
| 10 | DANSKE BANK A/S | 11 | $2 | 0.00% | — |
| 11 | CITIGROUP INC | 11 | $2 | 0.00% | NEW |
| 12 | Caitong International Asset Management Co., Ltd | 11 | $2 | 0.00% | NEW |
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 | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| Stonepine Capital Management, LLC | — | — | — | — | 49K | 61K | $145,790 |
| Ikarian Capital, LLC | — | — | — | — | 46K | 46K | $109,992 |
| GEODE CAPITAL MANAGEMENT, LLC | — | — | 18K | — | — | 23K | $55,653 |
| BOOTHBAY FUND MANAGEMENT, LLC | — | — | — | — | 14K | 14K | $32,322 |
| Tower Research Capital LLC (TRC) | — | 5K | 7K | — | — | 1K | $3,131 |
| UBS Group AG | — | 24K | 32K | 11K | 611 | 729 | $1,742 |
| Sound Income Strategies, LLC | — | — | — | — | 16 | 16 | $36 |
| BARRETT & COMPANY, INC. | — | 100 | 100 | 8 | 8 | 8 | $19 |
| MAI Capital Management | — | 40 | 40 | 3 | 3 | 3 | $8 |
| Caitong International Asset Management Co., Ltd | — | — | — | — | — | 1 | $2 |
| CITIGROUP INC | — | — | — | 2 | — | 1 | $2 |
| DANSKE BANK A/S | — | — | — | 1 | 1 | 1 | $2 |
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.
Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding divides each quarter's as-filed 13F shares by the SEC cover-page share count dated to that same quarter (split-adjusted), not by today's count — so splits and buybacks don't move the line.
| Quarter | Holders | Shares held |
|---|
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.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | +23,189 | $55,422 | OPEN |
| Stonepine Capital Management, LLC | +12,173 | $29,093 | ADD |
| Tower Research Capital LLC (TRC) | +1,310 | $3,131 | OPEN |
| UBS Group AG | +118 | $282 | ADD |
| Caitong International Asset Management Co., Ltd | +1 | $2 | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| DRW Securities, LLC | −15,429 | $36,875 | CLOSE |
| BANK OF AMERICA CORP /DE/ | −4 | $10 | CLOSE |
The 2025-Q4 register is as-filed in ITS OWN share basis; every count below was rebased into the 2026-Q1 basis (no split in between, factor 1). Dollar figures value the SHARE delta at one price — the 2026-03-31 close — rather than differencing two filings' own reported values, which would mix the quarter's price move into the trade figure.
13Fs disclose LONG US-listed positions only — shorts, most derivatives, bonds and non-US listings are invisible here, and a filer's quarter-over-quarter change is not necessarily a trade (index rebalances, in-kind transfers and entity successions all read as flow).
| % shares out |
|---|
| Value held |
|---|
| 2026-Q1 | 12 | 145,612 | 17.9% | $348,699 |
| 2025-Q4 | 10 | 124,253 | 20.0% | $652,358 |
| 2025-Q3 | 8 | 24,616 | 4.3% | $221,544 |
| 2025-Q2 | 11 | 512,758 | 9.4% | $421,801 |
| 2025-Q1 | 7 | 40,594 | 1.4% | $55,208 |
| 2024-Q1 | 19 | 972,757 | 9.1% | $351,090 |
| 2023-Q4 | 16 | 335,326 | 6.4% | $425,407 |
| 2023-Q3 | 12 | 116,697 | 2.8% | $131,663 |
| 2023-Q2 | 12 | 104,795 | 2.5% | $234,450 |
| 2023-Q1 | 13 | 190,243 | 8.5% | $190,671 |
| 2022-Q4 | 10 | 139,377 | 11.6% | $334,999 |
| 2022-Q3 | 21 | 1,303,776 | 3.3% | $232,000 |
| 2022-Q2 | 23 | 1,234,050 | 3.1% | $343,458 |
| 2022-Q1 | 20 | 1,733,640 | 4.3% | $589,000 |
| 2021-Q4 | 24 | 1,186,617 | 4.2% | $836,000 |
| 2021-Q3 | 20 | 967,815 | 3.5% | $1M |
| 2021-Q2 | 20 | 1,346,864 | 5.3% | $3M |
| 2021-Q1 | 19 | 1,274,090 | 5.0% | $3M |
| 2020-Q4 | 12 | 1,110,994 | 6.7% | $2M |
| 2020-Q3 | 9 | 103,994 | 0.6% | $183,000 |
| 2020-Q2 | 9 | 93,319 | 0.6% | $199,000 |
| 2020-Q1 | 13 | 104,290 | 0.6% | $217,000 |
| 2019-Q4 | 5 | 88,988 | 0.5% | $351,000 |
