372 tracked 13F filers disclose a position in OLN as of the latest SEC 13F filings, a combined $2.9B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | $448.5M | 15.1M | ▼−1.3% Reduced · −194K sh | Q1 2026 | |
| 2 | BlackRock, Inc. | $341.5M | 11.5M | ▼−3.9% Reduced · −465K sh | Q1 2026 | |
| 3 | DIMENSIONAL FUND ADVISORS LP | $167.3M | 5.6M | ▲+22% Added · +1.0M sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $161.7M | 5.4M | →First observed position No prior filed position | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $149.8M | 5.0M | →First observed position No prior filed position | Q1 2026 | |
| 6 | STATE STREET CORP | $95.1M | 4.8M | ▼~0% Reduced · −230 sh | Q2 2026 | |
| 7 | FULLER & THALER ASSET MANAGEMENT, INC. | $85.3M | 4.3M | ▼−14% Reduced · −714K sh | Q2 2026 | |
| 8 | YACKTMAN ASSET MANAGEMENT LP | $83.4M | 4.2M | ▲+2.9% Added · +117K sh | Q2 2026 | |
| 9 | PZENA INVESTMENT MANAGEMENT LLC | $77.1M | 3.9M | ▼−12% Reduced · −541K sh | Q2 2026 | |
| 10 | GOLDMAN SACHS GROUP INC | $84.3M | 2.8M | ▲+534% Added · +2.4M sh | Q1 2026 | |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | $41.8M | 2.1M | ▼−0.2% Reduced · −4K sh | Q2 2026 | |
| 12 | SEMPER AUGUSTUS INVESTMENTS GROUP LLC | $60.3M | 2.0M | ▲+4.4% Added · +86K sh | Q1 2026 | |
| 13 | BANK OF AMERICA CORP /DE/ | $52.7M | 1.8M | ▼−1.1% Reduced · −19K sh | Q1 2026 | |
| 14 | MORGAN STANLEY | $49.1M | 1.7M | ▼−9.3% Reduced · −169K sh | Q1 2026 | |
| 15 | CITADEL ADVISORS LLC | $48.8M | 1.6M | ▲+98% Added · +813K sh | Q1 2026 | |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $46.3M | 1.6M | ▲+4.5% Added · +68K sh | Q1 2026 | |
| 17 | Bank of New York Mellon Corp | $36.7M | 1.2M | ▲+1.0% Added · +12K sh | Q1 2026 | |
| 18 | TWO SIGMA INVESTMENTS, LP | $35.5M | 1.2M | ▲New +1.2M sh | Q1 2026 | |
| 19 | AQR CAPITAL MANAGEMENT LLC | $34.7M | 1.2M | ▲+89% Added · +550K sh | Q1 2026 | |
| 20 | UBS Group AG | $33.4M | 1.1M | ▲+2.2% Added · +24K sh | Q1 2026 | |
| 21 | MILLENNIUM MANAGEMENT LLC | $31.7M | 1.1M | ▲30× Added · +1.0M sh | Q1 2026 | |
| 22 | NORTHERN TRUST CORP | $29.4M | 989K | ▲+2.8% Added · +27K sh | Q1 2026 | |
| 23 | Gotham Asset Management, LLC | $23.5M | 791K | ▲+138% Added · +459K sh | Q1 2026 | |
| 24 | VICTORY CAPITAL MANAGEMENT INC | $23.3M | 782K | ▼−3.6% Reduced · −30K sh | Q1 2026 | |
| 25 | RAYMOND JAMES FINANCIAL INC | $21.5M | 722K | ▲+322% Added · +551K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 12 funds opened a new position in OLN and 31 added to an existing one, while 14 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 207 funds | $200.9B |
| ALPHABET INC-CL AGOOGL | 203 funds | $116.0B |
| AMAZON.COM INCAMZN | 199 funds | $151.4B |
| META PLATFORMS INC-CLASS AMETA | 199 funds | $87.4B |
| APPLE INCAAPL | 198 funds | $229.1B |
| NVIDIA CORPNVDA | 197 funds | $304.6B |
| CHEVRON CORPCVX | 193 funds | $21.9B |
| ELI LILLY & COLLY | 192 funds | $60.0B |
| JPMORGAN CHASE & COJPM | 192 funds | $44.7B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 192 funds | $32.3B |
| BANK OF AMERICA CORPBAC | 188 funds | $22.9B |
| BROADCOM INCAVGO | 186 funds | $117.1B |
Ranked by how many of OLN's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Feb 25, 2026 | Carter Deon | VP & President CAPV | Sell (S) | 7K | $154K |
| Feb 24, 2026 | Castle Angela M | VP & Chief Legal Officer | Sell (S) | 2K | $58K |
| Feb 3, 2026 | Slater Todd A | VP & CFO | Sell (S) | 92K | $2.1M |
| Feb 3, 2026 | Sumner R Nichole | VP & Controller | Sell (S) | 5K | $107K |
| Nov 26, 2025 | VERMILLION TERESA M | VP & Treasurer | Sell (S) | 5K | $94K |
| Aug 13, 2025 | VERMILLION TERESA M | VP & Treasurer | Sell (S) | 6K | $127K |
| Aug 6, 2025 | Ehrhardt Marc | VP & Pres Corp Development | Buy (P) | 20K | $374K |
| Feb 4, 2025 | Lane Kenneth Todd | President & CEO, Director | Buy (P) | 7K | $203K |
| Nov 8, 2024 | Sumner R Nichole | VP & Controller | Sell (S) | 11K | $459K |
| Feb 27, 2024 | FLAUGHER BRETT A | VP & Pres, Winchester | Sell (S) | 10K | $522K |
| Feb 27, 2024 | Sutton Scott McDougald | President & CEO, Director | Sell (S) | 2K | $130K |
| Feb 27, 2024 | Sutton Scott McDougald | President & CEO, Director | Sell (S) | 10K | $527K |
| Class | 13F holders | Value held |
|---|---|---|
| OLNthis pagecs | 372 funds | $2.9B |
| 680665AN6Corporate Bond - Domestic | 1 funds | $219K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
No filings captured for this ticker in the live stream yet.
Connected entities for OLN
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/OLN/capital-change-brief"
Use Arkolith's capital_change_brief for OLN. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for OLN. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.