1055 tracked 13F filers disclose a position in CIEN as of the latest SEC 13F filings, a combined $49.7B 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 | FMR LLC | $8.2B | 21.2M | ▲+0.4% Added · +82K sh | Q1 2026 | |
| 2 | BlackRock, Inc. | $5.2B | 13.4M | ▼−20% Reduced · −3.3M sh | Q1 2026 | |
| 3 | JPMORGAN CHASE & CO | $3.7B | 10.2M | ▼−5.9% Reduced · −638K sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $3.6B | 9.2M | →First observed position No prior filed position | Q1 2026 | |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $2.9B | 7.4M | →First observed position No prior filed position | Q1 2026 | |
| 6 | STATE STREET CORP | $3.3B | 6.7M | ▲+5.9% Added · +372K sh | Q2 2026 | |
| 7 | PRICE T ROWE ASSOCIATES INC /MD/ | $2.0B | 5.2M | ▲+29% Added · +1.2M sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $1.6B | 3.4M | ▼−17% Reduced · −695K sh | Q2 2026 | |
| 9 | BANK OF AMERICA CORP /DE/ | $758.8M | 2.0M | ▼−9.7% Reduced · −210K sh | Q1 2026 | |
| 10 | Jericho Capital Asset Management L.P. | $643.0M | 1.7M | —Held | Q1 2026 | |
| 11 | MORGAN STANLEY | $606.2M | 1.6M | ▲+13% Added · +177K sh | Q1 2026 | |
| 12 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $539.0M | 1.4M | ▼−38% Reduced · −848K sh | Q1 2026 | |
| 13 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $493.9M | 1.3M | ▲+36% Added · +337K sh | Q1 2026 | |
| 14 | VOYA INVESTMENT MANAGEMENT LLC | $467.9M | 1.2M | ▲+27% Added · +258K sh | Q1 2026 | |
| 15 | NORTHERN TRUST CORP | $460.9M | 1.2M | ▼−2.4% Reduced · −30K sh | Q1 2026 | |
| 16 | DIMENSIONAL FUND ADVISORS LP | $444.7M | 1.1M | ▼−18% Reduced · −251K sh | Q1 2026 | |
| 17 | BNP Paribas Asset Management Holding S.A. | $396.6M | 1.0M | ▼−48% Reduced · −952K sh | Q1 2026 | |
| 18 | AQR CAPITAL MANAGEMENT LLC | $374.5M | 977K | ▼−31% Reduced · −435K sh | Q1 2026 | |
| 19 | Bank of New York Mellon Corp | $359.8M | 927K | ▼−17% Reduced · −191K sh | Q1 2026 | |
| 20 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | $330.7M | 852K | ▲+22% Added · +154K sh | Q1 2026 | |
| 21 | Nuveen, LLC | $327.7M | 844K | ▼−6.0% Reduced · −54K sh | Q1 2026 | |
| 22 | NORGES BANK | $189.9M | 812K | ▲10× Added · +734K sh | Q4 2025 | |
| 23 | LONE PINE CAPITAL LLC | $314.3M | 810K | ▲New +810K sh | Q1 2026 | |
| 24 | VANGUARD FIDUCIARY TRUST CO | $308.0M | 793K | →First observed position No prior filed position | Q1 2026 | |
| 25 | GOLDMAN SACHS GROUP INC | $300.2M | 773K | ▲+74% Added · +328K 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, 4 funds opened a new position in CIEN and 17 added to an existing one, while 29 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 |
|---|---|---|
| NVIDIA CORPNVDA | 657 funds | $497.6B |
| MICROSOFT CORPMSFT | 651 funds | $340.0B |
| AMAZON.COM INCAMZN | 646 funds | $258.2B |
| APPLE INCAAPL | 638 funds | $379.1B |
| ALPHABET INC-CL AGOOGL | 637 funds | $231.2B |
| BROADCOM INCAVGO | 634 funds | $193.1B |
| META PLATFORMS INC-CLASS AMETA | 626 funds | $141.1B |
| MICRON TECHNOLOGY INCMU | 622 funds | $66.5B |
| ELI LILLY & COLLY | 616 funds | $103.5B |
| ALPHABET INC-CL CGOOG | 615 funds | $154.3B |
| ADVANCED MICRO DEVICESAMD | 612 funds | $50.3B |
| JPMORGAN CHASE & COJPM | 604 funds | $87.4B |
Ranked by how many of CIEN's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 17, 2026 | SMITH GARY B | President, CEO, Director | Sell (S) | 3K | $1.3M |
| Aug 17, 2026 | Gage Brodie | SVP Global Products & Supply | Sell (S) | 1K | $527K |
| Aug 14, 2026 | Rothenstein David M | SVP and Chief Strategy Officer | Sell (S) | 3K | $1.1M |
| Aug 14, 2026 | Graff Marc D. | SVP & Chief Financial Officer | Sell (S) | 5K | $2.2M |
| Aug 3, 2026 | SMITH GARY B | President, CEO, Director | Sell (S) | 3K | $1.1M |
| Jul 15, 2026 | Gage Brodie | SVP Global Products & Supply | Sell (S) | 1K | $539K |
| Jul 15, 2026 | DiPerna Dino | SVP Global R&D | Sell (S) | 391 | $176K |
| Jul 15, 2026 | DiPerna Dino | SVP Global R&D | Sell (S) | 391 | $176K |
| Jul 15, 2026 | Rothenstein David M | SVP and Chief Strategy Officer | Sell (S) | 3K | $1.1M |
| Jul 15, 2026 | SMITH GARY B | President, CEO, Director | Sell (S) | 3K | $1.2M |
| Jul 1, 2026 | Phipps Jason | SVP Global Sales and Marketing | Sell (S) | 3K | $1.2M |
| Jul 1, 2026 | Graff Marc D. | SVP & Chief Financial Officer | Sell (S) | 126 | $59K |
| Class | 13F holders | Value held |
|---|---|---|
| CIENthis pagecs | 1055 funds | $49.8B |
| 171779AM3CONVERTIBLE BOND | 1 funds | $26.2M |
| 171779959PUT | 1 funds | $138K |
| 171779909CALL | 1 funds | $105K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for CIEN
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/CIEN/capital-change-brief"
Use Arkolith's capital_change_brief for CIEN. 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 CIEN. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.