OLN Institutional Ownership
OLIN CORP
Latest close $19.05 as of Aug 4, 2026
Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred
from changes in reported shares when available; it is not a list of individual trades or exact execution prices.
Form 13F rows are quarter-end holding context only and do not establish an exact entry date.
Free access includes current parsed ownership filings, reported share changes, and ownership-percentage changes.
Significance scoring, disclosure-speed analysis, confirmation/divergence signals, and signal alerts require Investor or Pro.
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Institutional Research
Each institution is compared with its own prior filing, then the latest institution-level directions are compared for breadth.
Latest filing
Apr 30, 2026
Investor and Pro research
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Compare each institution with its own prior filing, measure accumulation breadth, and view ownership and activity charts across holders.
2 tracked institutions
Latest filing Apr 30, 2026
Beneficial ownership filing history
Showing 3 of 4 parsed filing(s) · 1 older require more history access| Holder | Observed / filed | Reported change | Shares | Ownership | Observation | Filing | Latest |
|---|---|---|---|---|---|---|---|
| Dimensional Fund Advisors CIK0000354204 | Jun 30, 2026 observed Jul 14, 2026 filed · 14d Initial Schedule 13G | Initial Schedule 13G | 6.2M | 5.40% | $19.82 | $21.66 | $19.05 |
| Vanguard Capital Management CIK0002100119 | Mar 31, 2026 observed Apr 30, 2026 filed · 30d Initial Schedule 13G | Initial Schedule 13G | 5.9M | 12.00% | $29.73 | $28.48 | $19.05 |
| BlackRock Legacy CIK0001364742 | Aug 31, 2024 observed Sep 10, 2024 filed · 10d Schedule 13G amendment | Reported accumulation | 12.0M +347.1K | 10.20% +0.70 pts | $40.38 | $19.05 |