- Quarter end
- 30 Jun 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 4 Aug 2026
- Managers listing it
- 10
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q1 2026 and Q2 2026; 0 listed it in both
- Shares listed
- 289,479
- combined, among listed positions
- Reported value
- $40m
- combined, at the quarter end
Among the 91 comparable managers: 7 buyers (opened or added shares) and 2 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +56,637.
Managers listing IOO in Q2 2026
10 of 10 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Jane Street Group LLC | 189,696 | $26m | under 0.1% | Added | +111,271 | 14 Aug 2026 (the filing on sec.gov) |
| Fidelity (FMR LLC) | 31,316 | $4.3m | under 0.1% | Added | +1,593 | 13 Aug 2026 (the filing on sec.gov) |
| AQR Capital Management LLC | 24,895 | $3.4m | under 0.1% | Added | +7,875 | 14 Aug 2026 (the filing on sec.gov) |
| GAMCO Investors Inc | 16,800 | $2.3m | under 0.1% | Held | 0 | 12 Aug 2026 (the filing on sec.gov) |
| Susquehanna International Group LLP | 9,779 | $1.3m | under 0.1% | Trimmed | -46,004 | 14 Aug 2026 (the filing on sec.gov) |
| Renaissance Technologies LLC | 7,900 | $1.1m | under 0.1% | Added | +2,000 | 13 Aug 2026 (the filing on sec.gov) |
| D. E. Shaw & Co. | 2,792 | $381k | under 0.1% | New | new | 14 Aug 2026 (the filing on sec.gov) |
| Polen Capital Management LLC | 2,616 | $357k | under 0.1% | New | new | 4 Aug 2026 (the filing on sec.gov) |
| Citadel Advisors LLC | 2,137 | $292k | under 0.1% | Trimmed | -27,054 | 2 Sep 2026 (the filing on sec.gov) |
| Neuberger Berman Group LLC | 1,548 | $211k | under 0.1% | New | new | 27 Oct 2026 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Jane Street Group LLCexisting position · 189,696 shares now+111,271
- AQR Capital Management LLCexisting position · 24,895 shares now+7,875
- D. E. Shaw & Co.new position · 2,792 shares now+2,792
- Polen Capital Management LLCnew position · 2,616 shares now+2,616
- Renaissance Technologies LLCexisting position · 7,900 shares now+2,000
Reductions
- Susquehanna International Group LLPexisting position · 9,779 shares now-46,004
- Citadel Advisors LLCexisting position · 2,137 shares now-27,054
New positions and exits
New (3)
Exited (0)
No exit shown by a manager’s own filing.
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2014 | 1 | $4.1m | n.a. | n.a. |
| Q3 2014 | 1 | $8.0m | n.a. | n.a. |
| Q1 2016 | 1 | $6.9m | n.a. | n.a. |
| Q3 2016 | 1 | $8.3m | n.a. | n.a. |
| Q4 2024 | 1 | $676k | 1 | 0 |
| Q1 2025 | 1 | $306k | 0 | 1 |
| Q4 2025 | 1 | $347k | 7 | 0 |
| Q2 2026 | 2 | $2.7m | 7 | 2 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own IOO, latest filings →Back to the 13F Explorer →