| 3K |
| $8K |
| -33.4% |
| 0.845% |
| 0.00% |
| 4 | RHUMBLINE ADVISERS | 749 | $2K | +912.2% | 0.235% | 0.00% |
| 5 | UBS Group AG | 403 | $1K | — | 0.127% | 0.00% |
| 6 | SBI Securities Co., Ltd. | 6 | $17 | +50.0% | 0.002% | 0.00% |
| 7 | Farther Finance Advisors, LLC | 1 | $3 | 0.0% | 0.000% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in ARBK — a direct measure of their conviction.
| 199.99% |
| +0.00 pp |
| $527M |
| +19060% |
| Q3 2024 | 24 | 20% | 199.99% | +0.00 pp | $3M | +0.8% |
| Q2 2024 | 30 | — | 199.99% | — | $3M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
2 institutions opened new positions in ARBK during Q1 2026, while 3 fully exited. 2 added to existing positions and 2 trimmed.
ARBK institutional ownership fell by 18.15 percentage points quarter-over-quarter, with a net change of -1 holders.
The top 10 institutions account for 100.0% of all reported 13F value in ARBK, and the top 25 account for 100.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.