Who owns Otsuka Holdings Co., Ltd.?
Institutional ownership of OTSKY from SEC Form 13F filings across 7 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
7
13F holders
$99.9M
value, 2026 filers
0.3%
of shares outstanding (3.0M sh)
0
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of OTSKY's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Aristotle Capital Management, LLC | 2.9M | $97.9M | 0.2% | 0.3% | -4.6% |
| 2 | RHUMBLINE ADVISERS | 45,793 | $1.5M | 0.0% | 0% | +20.9% |
| 3 | GAMMA Investing LLC | 9,262 | $310,092 | 0.0% | 0% | +4.0% |
| 4 | Westside Investment Management, Inc. | 1,418 | $47,474 | 0.0% | 0% | 0.0% |
| 5 | First Command Advisory Services, Inc. | 943 | $31,572 | 0.0% | 0% | +398.9% |
| 6 | PNC Financial Services Group, Inc. | 131 | $4,386 | 0.0% | 0% | +28.4% |
| 7 | IMA Advisory Services, Inc. | 79 | $2,645 | 0.0% | 0% | +61.2% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.