% of shares outstanding is not shown for RXI: this is a fund line, and we hold no cover-page share count for it at any quarter — a fund's shares outstanding move with creations and redemptions rather than with issuance and buybacks, and it is not the SEC cover-page count this percentage is defined against. The figure is withheld rather than computed against a count that does not exist. Holder share counts are shown as filed.
Crowding percentile withheld — no market cap for RXI in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
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 |
|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 297K | 270K | 267K | 252K | 207K | 199K | $37M |
| HighTower Advisors, LLC | 1K | 1K | 1K | 1K | 64K | 96K | $18M |
| MORGAN STANLEY | 63K | 67K | 66K | 71K | 87K | 87K | $16M |
| Banco Santander, S.A. | — | — | — | — | — | 61K | $11M |
| PGIM Custom Harvest LLC | 38K | 66K | 61K | 55K | 54K | 52K | $10M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 3K | 33K | 29K | 28K | 22K | 23K | $4M |
| Federation des caisses Desjardins du Quebec | — | 17K | 17K | 17K | 17K | 23K | $4M |
| JANE STREET GROUP, LLC | 16K | 16K | 9K | 16K | 10K | 17K | $3M |
| WELLS FARGO & COMPANY/MN | 17K | 17K | 16K | 17K | 16K | 16K | $3M |
| BANK OF AMERICA CORP /DE/ | 16K | 15K | 15K | 15K | 15K | 14K | $3M |
| CITADEL ADVISORS LLC | 7K | 12K | 5K | 3K | 17K | 12K | $2M |
| ROYAL BANK OF CANADA | 2K | 14K | 13K | 19K | 10K | 11K | $2M |
| Quantinno Capital Management LP | 6K | 9K | 9K | 10K | 10K | 9K | $2M |
| Slow Capital, Inc. | 15K | 13K | 12K | 10K | 9K | 8K | $2M |
| COMMONWEALTH EQUITY SERVICES, LLC | 10K | 9K | 9K | 8K | 8K | 8K | $2M |
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 | |
|---|---|---|---|
| Banco Santander, S.A. | +61,306 | $11M | OPEN |
| HighTower Advisors, LLC | +32,010 | $6M | ADD |
| JANE STREET GROUP, LLC | +7,115 | $1M | ADD |
| CX Institutional | +6,106 | $1M | ADD |
| Federation des caisses Desjardins du Quebec | +5,721 | $1M | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| Cambria Investment Management, L.P. | −44,605 | $8M | CLOSE |
| BlackRock, Inc. | −8,232 | $2M | TRIM |
| Cetera Investment Advisers | −7,117 | $1M | TRIM |
| Cresset Asset Management, LLC | −6,674 | $1M | CLOSE |
| CITADEL ADVISORS LLC | −4,920 | $917,334 | 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 | 74 | 747,794 | — | $139M |
| 2025-Q4 | 67 | 711,902 | — | $146M |
| 2025-Q3 | 70 | 711,542 | — | $147M |
| 2025-Q2 | 68 | 680,809 | — | $128M |
| 2025-Q1 | 71 | 765,575 | — | $136M |
| 2024-Q4 | 70 | 636,404 | — | $117M |
| 2024-Q3 | 71 | 732,047 | — | $130M |
| 2024-Q2 | 67 | 731,577 | — | $118M |
| 2024-Q1 | 67 | 1,032,965 | — | $173M |
| 2023-Q4 | 62 | 1,122,952 | — | $187M |
| 2023-Q3 | 65 | 913,582 | — | $134M |
| 2023-Q2 | 67 | 1,050,901 | — | $154M |
| 2023-Q1 | 61 | 906,469 | — | $132M |
| 2022-Q4 | 66 | 767,291 | — | $97M |
| 2022-Q3 | 68 | 1,053,299 | — | $130M |
| 2022-Q2 | 72 | 863,330 | — | $110M |
| 2022-Q1 | 70 | 925,027 | — | $145M |
| 2021-Q4 | 75 | 868,201 | — | $155M |
| 2021-Q3 | 72 | 920,870 | — | $152M |
| 2021-Q2 | 70 | 1,078,138 | — | $185M |
| 2021-Q1 | 59 | 1,059,676 | — | $173M |
| 2020-Q4 | 60 | 956,541 | — | $149M |
| 2020-Q3 | 54 | 807,783 | — | $109M |
| 2020-Q2 | 52 | 642,116 | — | $76M |
| 2020-Q1 | 54 | 869,927 | — | $82M |
| 2019-Q4 | 60 | 1,209,380 | — | $152M |
| 2019-Q3 | 60 | 801,305 | — | $96M |
| 2019-Q2 | 63 | 914,032 | — | $108M |
| 2019-Q1 | 65 | 781,794 | — | $89M |
| 2018-Q4 | 61 | 1,389,529 | — | $140M |
| 2018-Q3 | 66 | 1,408,780 | — | $169M |
| 2018-Q2 | 64 | 1,463,334 | — | $168M |
| 2018-Q1 | 63 | 1,327,435 | — | $148M |
| 2017-Q4 | 65 | 1,030,046 | — | $113M |
| 2017-Q3 | 59 | 1,436,552 | — | $146M |
| 2017-Q2 | 58 | 1,368,635 | — | $135M |
| 2017-Q1 | 55 | 1,139,061 | — | $110M |
| 2016-Q4 | 50 | 1,171,267 | — | $106M |
| 2016-Q3 | 53 | 1,104,050 | — | $99M |
| 2016-Q2 | 51 | 1,256,091 | — | $106M |
| 2016-Q1 | 49 | 1,182,001 | — | $105M |
| 2015-Q4 | 53 | 2,623,089 | — | $233M |
| 2015-Q3 | 51 | 1,263,440 | — | $108M |
| 2015-Q2 | 49 | 2,329,420 | — | $213M |
| 2015-Q1 | 58 | 1,280,983 | — | $112M |
| 2014-Q4 | 41 | 818,848 | — | $70M |
| 2014-Q3 | 37 | 726,208 | — | $59M |
| 2014-Q2 | 36 | 923,108 | — | $78M |
| 2014-Q1 | 39 | 1,224,183 | — | $101M |
| 2013-Q4 | 37 | 1,143,638 | — | $96M |
| 2013-Q3 | 29 | 979,821 | — | $76M |
| 2013-Q2 | 30 | 1,075,330 | — | $76M |
| 2013-Q1 | 1 | 464 | — | $33,000 |
