% 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.
Crowding percentile withheld — no market cap for OFS in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | 109,948109,948 | $377,463 | — | TRIM -28% |
| 2 | Virtus Investment Advisers, LLC | 92,66592,665 | $328,961 | — | ADD 13% |
| 3 | MARSHALL WACE, LLP | 75,11175,111 | $266,645 | — | TRIM -5% |
| 4 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 61,18161,181 | $217,193 | — | TRIM -3% |
| 5 | Bulldog Investors, LLP | 57,63957,639 | $204,618 | — | — |
| 6 | Squarepoint Ops LLC | 50,32250,322 | $178,643 | — | ADD 19% |
| 7 | Vident Advisory, LLC | 49,23749,237 | $174,791 | — | NEW |
| 8 | TWO SIGMA INVESTMENTS, LP | 44,00644,006 | $156,221 | — | TRIM -39% |
| 9 | MORGAN STANLEY | 39,56339,563 | $140,451 | — | TRIM -75% |
| 10 | Arkadios Wealth Advisors | 35,78835,788 | $127,047 | — | TRIM -38% |
| 11 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 23,29923,299 | $82,711 | — | NEW |
| 12 | UBS Group AG | 21,76021,760 | $77,248 | — | ADD 550% |
| 13 | SOA Wealth Advisors, LLC. | 19,67219,672 | $69,834 | — | ADD 5% |
| 14 | XTX Topco Ltd | 16,64116,641 | $59,076 | — | NEW |
| 15 | Cambridge Investment Research Advisors, Inc. | 15,04015,040 | $53,000 | — | — |
| 16 | &PARTNERS | 13,50013,500 | $47,925 | — | — |
| 17 | Janney Montgomery Scott LLC | 13,25013,250 | $47,000 | — | TRIM -5% |
| 18 | Prota Financial, LLC | 12,95012,950 | $45,973 | — | — |
| 19 | Sanctuary Advisors, LLC | 12,10212,102 | $42,962 | — | — |
| 20 | RITHOLTZ WEALTH MANAGEMENT | 11,84211,842 | $42,037 | — | TRIM -31% |
| 21 | ROYAL BANK OF CANADA | 10,50010,500 | $37,000 | — | TRIM -9% |
| 22 | LGT Financial Advisors LLC | 3,0853,085 | $10,952 | — | NEW |
| 23 | SIMPLEX TRADING, LLC | 1,9511,951 | $6,926 | — | ADD 1294% |
| 24 | OSAIC HOLDINGS, INC. | 1,1061,106 | $3,926 | — | ADD 119% |
| 25 | NBC SECURITIES, INC. | 809809 | $2,873 | — | TRIM -71% |
| 26 | Triumph Capital Management | 500500 | $1,775 | — | — |
| 27 | CWM, LLC | 100100 | $355 | — | — |
| 28 | Allworth Financial LP | 77 | $25 | — | NEW |
| 29 | Caitong International Asset Management Co., Ltd | 33 | $11 | — | NEW |
| 30 | WELLS FARGO & COMPANY/MN | 22 | $7 | — | — |
| 31 | CITIGROUP INC | 11 | $4 | — | 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 |
|---|---|---|---|---|---|---|---|
| INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | 139K | 144K | 144K | 168K | 153K | 110K | $377,463 |
| Virtus Investment Advisers, LLC | — | 79K | 62K | 66K | 82K | 93K | $328,961 |
| MARSHALL WACE, LLP | — | — | — | — | 79K | 75K | $266,645 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | — | — | 86K | 69K | 63K | 61K | $217,193 |
| Bulldog Investors, LLP | 114K | 182K | 127K | 58K | 58K | 58K | $204,618 |
| Squarepoint Ops LLC | — | — | — | — | 42K | 50K | $178,643 |
| Vident Advisory, LLC | — | — | — | — | — | 49K | $174,791 |
| TWO SIGMA INVESTMENTS, LP | 116K | 121K | 114K | 121K | 72K | 44K | $156,221 |
| MORGAN STANLEY | 138K | 139K | 140K | 147K | 158K | 40K | $140,451 |
| Arkadios Wealth Advisors | 88K | 87K | 84K | 78K | 58K | 36K | $127,047 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | — | — | — | — | 23K | $82,711 |
| UBS Group AG | 11K | 11K | 1K | 3K | 3K | 22K | $77,248 |
| SOA Wealth Advisors, LLC. | 16K | 17K | 17K | 18K | 19K | 20K | $69,834 |
| XTX Topco Ltd | — | — | — | — | — | 17K | $59,076 |
| Cambridge Investment Research Advisors, Inc. | 18K | 18K | 18K | 18K | 15K | 15K | $53,000 |
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.
Holder count only — too few computable %-of-shares-outstanding quarters for a % pane. Line breaks are quarters with no 13F record, never interpolated.
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 | |
|---|---|---|---|
| Vident Advisory, LLC | +49,237 | $174,791 | OPEN |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | +23,299 | $82,711 | OPEN |
| UBS Group AG | +18,412 | $65,363 | ADD |
| XTX Topco Ltd | +16,641 | $59,076 | OPEN |
| Virtus Investment Advisers, LLC | +10,444 | $37,076 | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| MORGAN STANLEY | −117,953 | $418,733 | TRIM |
| TWO SIGMA ADVISERS, LP | −109,300 | $388,015 | CLOSE |
| Connor, Clark & Lunn Investment Management Ltd. | −70,184 | $249,153 | CLOSE |
| INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | −43,250 | $153,538 | TRIM |
| TWO SIGMA INVESTMENTS, LP | −28,224 | $100,195 | TRIM |
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).
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 31 | 793,580 | — | $3M |
| 2025-Q4 | 34 | 1,130,238 | — | $5M |
| 2025-Q3 | 31 | 1,245,053 | — | $10M |
| 2025-Q2 | 39 | 1,443,647 | — | $12M |
| 2025-Q1 | 30 | 1,479,229 | — | $14M |
| 2024-Q4 | 33 | 1,463,915 | — | $12M |
| 2024-Q3 | 32 | 2,391,821 | — | $150M |
| 2024-Q2 | 35 | 1,363,273 | — | $12M |
| 2024-Q1 | 35 | 1,824,439 | — | $18M |
| 2023-Q4 | 37 | 1,730,506 | — | $20M |
| 2023-Q3 | 35 | 1,546,114 | — | $17M |
| 2023-Q2 | 36 | 1,492,239 | — | $15M |
| 2023-Q1 | 35 | 1,523,037 | — | $16M |
| 2022-Q4 | 33 | 1,668,424 | — | $17M |
| 2022-Q3 | 37 | 1,773,678 | — | $15M |
| 2022-Q2 | 47 | 2,493,106 | — | $25M |
| 2022-Q1 | 34 | 1,599,577 | — | $21M |
| 2021-Q4 | 36 | 1,506,977 | — | $16M |
| 2021-Q3 | 31 | 1,608,630 | — | $17M |
| 2021-Q2 | 32 | 1,625,473 | — | $16M |
| 2021-Q1 | 33 | 1,513,550 | — | $13M |
| 2020-Q4 | 32 | 1,345,465 | — | $10M |
| 2020-Q3 | 28 | 1,552,266 | — | $7M |
| 2020-Q2 | 33 | 1,670,305 | — | $8M |
| 2020-Q1 | 34 | 2,110,101 | — | $9M |
| 2019-Q4 | 32 | 2,190,364 | — | $25M |
| 2019-Q3 | 35 | 2,399,846 | — | $28M |
| 2019-Q2 | 36 | 2,666,772 | — | $32M |
| 2019-Q1 | 40 | 2,746,568 | — | $32M |
| 2018-Q4 | 36 | 2,984,555 | — | $32M |
| 2018-Q3 | 35 | 3,206,399 | — | $38M |
| 2018-Q2 | 33 | 3,271,664 | — | $37M |
| 2018-Q1 | 32 | 3,627,513 | — | $41M |
| 2017-Q4 | 32 | 3,570,268 | — | $42M |
| 2017-Q3 | 31 | 3,745,229 | — | $49M |
| 2017-Q2 | 37 | 3,818,511 | — | $55M |
| 2017-Q1 | 37 | 3,491,557 | — | $50M |
| 2016-Q4 | 27 | 2,514,502 | — | $35M |
| 2016-Q3 | 32 | 2,217,965 | — | $29M |
| 2016-Q2 | 35 | 2,047,852 | — | $26M |
| 2016-Q1 | 26 | 1,522,611 | — | $20M |
| 2015-Q4 | 19 | 1,392,143 | — | $16M |
| 2015-Q3 | 18 | 1,445,757 | — | $15M |
| 2015-Q2 | 18 | 1,981,546 | — | $24M |
| 2015-Q1 | 21 | 2,128,034 | — | $26M |
| 2014-Q4 | 18 | 2,078,019 | — | $24M |
| 2014-Q3 | 20 | 1,815,103 | — | $22M |
| 2014-Q2 | 19 | 1,728,866 | — | $22M |
| 2014-Q1 | 21 | 1,743,850 | — | $22M |
| 2013-Q4 | 24 | 1,625,144 | — | $21M |
| 2013-Q3 | 20 | 1,575,348 | — | $20M |
| 2013-Q2 | 30 | 1,747,838 | — | $21M |
| 2013-Q1 | 1 | 11,600 | — | $162,000 |
