CIENA CORP hedge fund holdings
CIENNYSE$391.34+12.20 (+3.22%)as of Oct 2, 2026
Every quarter, large institutional investment managers with over $100M in U.S.-listed assets under management disclose their U.S. equity holdings through 13F filings. Read together, those filings show which businesses professional capital is moving into and out of.
Price vs funds buying and selling
CIEN · close · 13FReported Aug 14, 2026Price vs funds buying and selling data
Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+156.3%). 0 fund reports plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Funds buying · new + increased
Funds selling · reduced + closed
Net buyers vs sellers
Buying = new + increased; selling = reduced + closed. Counts exclude position changes under 5% of the fund's holding last quarter.Price and fund activity data
| Quarter | Funds buying | Funds selling | Bought | Sold | Filers | Reported |
|---|---|---|---|---|---|---|
| Q2 2025 | 213 | 171 | $1.4B | $1.01B | 526 | Aug 14, 2025 |
| Q3 2025 | 263 | 211 | $3.52B | $2.53B | 652 | Nov 14, 2025 |
| Q4 2025 | 355 | 275 | $3.12B | $5.07B | 809 | Feb 14, 2026 |
| Q1 2026 | 504 | 374 | $5.63B | $7.92B | 1,034 | May 15, 2026 |
| Q2 2026 | 552 | 367 | $6.02B | $7.41B | 1,154 | Aug 14, 2026 |
Quarterly action breakdown
Q2 2026
1,154 filersNew position
216$1.02B+2.08M sh
Increased
336$5B+10.2M sh
Reduced
268-$5.92B-12.1M sh
Out / sold
99-$1.49B-3.04M sh
Last 4 quarters · free
Reported Aug 14, 2026
| Fund | Action | Change in dollar | Value | % of portfolio | Reported |
|---|---|---|---|---|---|
| Jericho Capital Asset Management L.P. | Reduce 66.10% | -$537M | $275M | 2.28% | Aug 14, 2026 |
| Lone Pine Capital LLC | Sell 100% | -$314M | $0 | 0.00% | Aug 14, 2026 |
| Polar Capital Holdings Plc | Sell 100% | -$310M | $0 | 0.00% | Aug 14, 2026 |
| Pictet Asset Management Holding SA | Added 593.08% | +$174M | $203M | 0.19% | Jul 30, 2026 |
| Anatole Investment Management Ltd | Reduce 99.11% | -$152M | $1.36M | 0.23% | Aug 14, 2026 |
| William Blair Investment Management, LLC | Reduce 66.43% | -$130M | $65.6M | 0.20% | Aug 12, 2026 |
| 1832 Asset Management L.P. | Reduce 64.93% | -$91.5M | $49.4M | 0.02% | Aug 13, 2026 |
| Royal London Asset Management Ltd | Added 136.34% | +$90.2M | $156M | 0.29% | Aug 13, 2026 |
| Whale Rock Capital Management LLC | Sell 100% | -$89.8M | $0 | 0.00% | Aug 14, 2026 |
| Munro Partners | Reduce 82.35% | -$86.8M | $18.6M | 0.41% | Aug 10, 2026 |
| BIT Capital GmbH | New Buy | +$82.8M | $82.8M | 2.45% | Aug 12, 2026 |
| T. Rowe Price Investment Management, Inc. | Reduce 35.03% | -$71.9M | $133M | 0.09% | Aug 14, 2026 |
| Caisse de depot et placement du Quebec | Added 210.62% | +$66.6M | $98.3M | 0.14% | Aug 14, 2026 |
| Zurich Insurance Group Ltd | Sell 100% | -$64.1M | $0 | 0.00% | Aug 14, 2026 |
| Foundations Investment Advisors, LLC | Reduce 50.83% | -$64M | $61.9M | 0.64% | Aug 14, 2026 |
| Primecap Management Co | Reduce 29.68% | -$63.8M | $151M | 0.09% | Aug 14, 2026 |
| Jupiter Asset Management Ltd | Added 755.76% | +$61.5M | $69.6M | 0.35% | Aug 10, 2026 |
| Caxton Associates LLP | New Buy | +$57.8M | $57.8M | 1.08% | Aug 14, 2026 |
| Ci Investments Inc. | Reduce 90.16% | -$56.9M | $6.21M | 0.02% | Aug 13, 2026 |
| PFA Pension, Forsikringsaktieselskab | New Buy | +$46.8M | $46.8M | 0.12% | Aug 12, 2026 |
| Nearwater Capital Markets, Ltd | New Buy | +$45.6M | $45.6M | 0.79% | Aug 14, 2026 |
| Scge Management, L.P. | New Buy | +$43.7M | $43.7M | 0.74% | Aug 14, 2026 |
| APG Asset Management N.V. | Added 1244.64% | +$42.5M | $45.9M | 0.11% | Aug 12, 2026 |
| Silvant Capital Management LLC | New Buy | +$42.2M | $42.2M | 1.23% | Aug 11, 2026 |
| E20 Capital Ltd | Sell 100% | -$41.7M | $0 | 0.00% | Aug 13, 2026 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Added 8.20% | +$41.1M | $542M | 0.54% | Aug 13, 2026 |
| Wellington Management Group LLP | Reduce 56.48% | -$40M | $30.8M | 0.01% | Aug 14, 2026 |
| Shannon River Fund Management LLC | New Buy | +$39.9M | $39.9M | 3.56% | Aug 13, 2026 |
| Schroder Investment Management Group | Reduce 21.12% | -$39.9M | $149M | 0.11% | Aug 13, 2026 |
| Ardmore Road Asset Management LP | Sell 100% | -$35.3M | $0 | 0.00% | Aug 14, 2026 |
| NorthCoast Asset Management LLC | Added 7702.94% | +$34.7M | $35.1M | 0.78% | Aug 12, 2026 |
| CloudAlpha Capital Management Limited/Hong Kong | Sell 100% | -$34.2M | $0 | 0.00% | Aug 10, 2026 |
| Stephens Investment Management Group LLC | Reduce 39.36% | -$32.1M | $49.4M | 0.53% | Jul 29, 2026 |
| Liontrust Investment Partners LLP | Sell 100% | -$31.9M | $0 | 0.00% | Aug 18, 2026 |
| Steadfast Capital Management LP | Sell 100% | -$31.7M | $0 | 0.00% | Aug 14, 2026 |
| Public Sector Pension Investment Board | Added 239.66% | +$29.6M | $41.9M | 0.11% | Aug 13, 2026 |
| Natixis | Reduce 67.23% | -$28.9M | $14.1M | 0.06% | Aug 13, 2026 |
| Massachusetts Financial Services Co | Added 10.01% | +$28.6M | $314M | 0.10% | Aug 3, 2026 |
| SIH Partners, LLLP | Added 2315.34% | +$28.5M | $29.7M | 0.19% | Aug 14, 2026 |
| Freestone Grove Partners LP | Reduce 42.88% | -$28M | $37.3M | 0.24% | Aug 14, 2026 |
| Hel Ved Capital Management Ltd | Reduce 86.83% | -$27.1M | $4.11M | 0.30% | Aug 14, 2026 |
| Loomis Sayles & Co L P | Reduce 57.38% | -$25.7M | $19.1M | 0.02% | Aug 14, 2026 |
| Credit Agricole S A | Added 139.21% | +$25.4M | $43.6M | 0.09% | Aug 14, 2026 |
| Allen Investment Management, LLC | New Buy | +$25.3M | $25.3M | 0.30% | Aug 5, 2026 |
| Robeco Institutional Asset Management B.V. | Added 19.16% | +$25.2M | $157M | 0.19% | Jul 21, 2026 |
| Virtus Wealth Solutions LLC | Sell 100% | -$24.6M | $0 | 0.00% | Jul 24, 2026 |
| Vinva Investment Management Ltd | Added 308.44% | +$23.2M | $30.8M | 0.20% | Aug 14, 2026 |
| Diamond Hill Capital Management, LLC (Investment Advisor) | Sell 100% | -$22.7M | $0 | 0.00% | Aug 6, 2026 |
| North Growth Management Ltd. | Reduce 28.03% | -$21.6M | $55.5M | 7.11% | Jul 22, 2026 |
| CANADA LIFE ASSURANCE Co | Added 52.06% | +$21M | $61.5M | 0.10% | Aug 13, 2026 |
| Bridgewater Associates, LP | Reduce 29.76% | -$21M | $49.6M | 0.20% | Aug 14, 2026 |
| MUFG Securities EMEA plc | Added 739.25% | +$21M | $23.8M | 0.25% | Aug 12, 2026 |
| Mn Services Vermogensbeheer B.V. | New Buy | +$20.2M | $20.2M | 0.15% | Jul 31, 2026 |
| Lansforsakringar Fondforvaltning AB (publ) | Added 1154.17% | +$19.9M | $21.6M | 0.10% | Aug 13, 2026 |
| First Trust Advisors LP | Reduce 9.25% | -$19.8M | $195M | 0.11% | Aug 11, 2026 |
| Riposte Capital LLC | New Buy | +$19.6M | $19.6M | 4.36% | Aug 14, 2026 |
| Summit Financial, LLC | Added 443.17% | +$19.6M | $24M | 0.26% | Aug 12, 2026 |
| Titan Global Capital Management USA LLC | Reduce 32.03% | -$18.6M | $39.4M | 5.00% | Aug 13, 2026 |
| FengHe Fund Management Pte. Ltd. | Reduce 42.11% | -$18.4M | $25.3M | 2.40% | Aug 7, 2026 |
| Jain Global LLC | New Buy | +$18.3M | $18.3M | 0.07% | Aug 14, 2026 |
| Canada Pension Plan Investment Board | Added 39.18% | +$17.7M | $62.9M | 0.03% | Aug 14, 2026 |
| Sumitomo Mitsui Trust Group, Inc. | Added 11.07% | +$17.5M | $175M | 0.10% | Jul 30, 2026 |
| Paralel Advisors LLC | Sell 100% | -$17.2M | $0 | 0.00% | Aug 11, 2026 |
| USS Investment Management Ltd | New Buy | +$16.9M | $16.9M | 0.06% | Aug 11, 2026 |
| Capital Fund Management S.A. | Added 194.74% | +$16.7M | $25.3M | 0.11% | Aug 13, 2026 |
| Migdal Insurance & Financial Holdings Ltd. | Reduce 99.35% | -$16.6M | $109K | 0.00% | Aug 10, 2026 |
| VANGUARD ASSET MANAGEMENT, Ltd | Added 12.84% | +$15.4M | $135M | 0.09% | Aug 13, 2026 |
| Ensign Peak Advisors, Inc | Reduce 23.20% | -$15.3M | $50.7M | 0.08% | Aug 14, 2026 |
| Temasek Holdings (Private) Ltd | Reduce 70.15% | -$15.3M | $6.51M | 0.02% | Aug 7, 2026 |
| Handelsbanken Fonder AB | Added 69.93% | +$15.1M | $36.8M | 0.10% | Jul 10, 2026 |
| Capital World Investors | Added 1.79% | +$15.1M | $861M | 0.10% | Aug 12, 2026 |
| Bienville Capital Management, LLC | Reduce 39.77% | -$13.7M | $20.7M | 2.77% | Aug 13, 2026 |
| Aviva PLC | Added 28.60% | +$13.5M | $60.8M | 0.09% | Aug 13, 2026 |
| Science & Technology Partners, L.P. | Reduce 96.33% | -$13M | $496K | 0.08% | Aug 14, 2026 |
| National Pension Service | Reduce 8.81% | -$12.9M | $134M | 0.09% | Aug 13, 2026 |
| Mitsubishi UFJ Asset Management Co., Ltd. | Added 8.15% | +$12.7M | $168M | 0.09% | Aug 7, 2026 |
| Eventide Asset Management, LLC | Added 636.95% | +$12.5M | $14.5M | 0.19% | Aug 14, 2026 |
| Varma Mutual Pension Insurance Co | New Buy | +$12.4M | $12.4M | 0.07% | Aug 12, 2026 |
| Voloridge Investment Management, LLC | New Buy | +$11.9M | $11.9M | 0.05% | Aug 14, 2026 |
| Groupe la Francaise | New Buy | +$11.9M | $11.9M | 0.14% | Aug 25, 2026 |
| Nomura Asset Management Co Ltd | Added 44.17% | +$11.7M | $38.3M | 0.08% | Aug 13, 2026 |
| Lord, Abbett & Co. LLC | Added 35.95% | +$11.5M | $43.4M | 0.12% | Aug 14, 2026 |
| Vaughan Nelson Investment Management, L.P. | Added 41.65% | +$11.4M | $38.7M | 0.34% | Jul 16, 2026 |
| ION Fund Management Ltd | Sell 100% | -$10.7M | $0 | 0.00% | Aug 14, 2026 |
| Tortoise Capital Advisors, L.L.C. | Added 84.32% | +$10.5M | $23M | 0.23% | Aug 14, 2026 |
| KBC Group NV | Added 37.16% | +$10.4M | $38.5M | 0.08% | Aug 5, 2026 |
| Analog Century Management LP | Reduce 8.57% | -$10.4M | $111M | 4.06% | Aug 14, 2026 |
| Holocene Advisors, LP | Sell 100% | -$9.92M | $0 | 0.00% | Aug 14, 2026 |
| Pinebridge Investments LLC | Added 2914.26% | +$9.62M | $9.95M | 0.08% | Aug 14, 2026 |
| Broad Peak Investment Advisers Pte Ltd | Sell 100% | -$9.43M | $0 | 0.00% | Jul 30, 2026 |
| E Fund Management Co., Ltd. | Reduce 40.03% | -$9.42M | $14.1M | 0.32% | Aug 11, 2026 |
| Flputnam Investment Management Co | Added 53.34% | +$9.36M | $26.9M | 0.32% | Aug 6, 2026 |
| Williams Jones Wealth Management, LLC. | Reduce 8.82% | -$9.29M | $96M | 1.08% | Aug 5, 2026 |
| Nomura Asset Management International Inc. | Added 28.92% | +$9.28M | $41.4M | 0.06% | Aug 14, 2026 |
| UNICOM Systems, Inc. | Added 109.32% | +$9.03M | $17.3M | 1.13% | Jul 8, 2026 |
| Chapin Davis, Inc. | Sell 100% | -$8.91M | $0 | 0.00% | Jul 7, 2026 |
| Livforsakringsbolaget Skandia, Omsesidigt | Added 2344.13% | +$8.86M | $9.23M | 0.30% | Aug 18, 2026 |
| Kintra Wealth, LLC | Reduce 44.92% | -$8.84M | $10.8M | 0.57% | Aug 14, 2026 |
| Concurrent Investment Advisors, LLC | Added 158.19% | +$8.64M | $14.1M | 0.12% | Jul 27, 2026 |
| ING Groep NV | New Buy | +$8.53M | $8.53M | 0.04% | Aug 13, 2026 |