Latest Institutional Purchases of Ciena Corp (CIEN)
This list provides information on the latest institutional transactions involving Ciena Corp (CIEN) stock that were buys. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the purchase has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Nov 12, 2025
Q3 2025
|
Ci Investments Inc.
Toronto, A6 |
BUY
|
- |
302K+ 60999.6% |
$23.5M - $44M
|
302K
$58M
|
|
|
Nov 14, 2025
Q3 2025
|
Aqr Capital Management LLC
Greenwich, CT |
BUY
|
- |
282K+ 23.06% |
$21.9M - $41M
|
1.5M
$288M
|
|
|
Nov 14, 2025
Q3 2025
|
Nomura Holdings Inc
Tokyo, M0 |
BUY
|
- |
257KNew |
$20M - $37.5M
|
257K
$49.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Holocene Advisors, LP
New York, NY |
BUY
|
- |
253KNew |
$19.7M - $36.9M
|
253K
$48.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Amundi
Paris, I0 |
BUY
|
- |
253K+ 805.16% |
$19.7M - $36.9M
|
285K
$54.6M
|
|
|
Oct 24, 2025
Q3 2025
|
Feng He Fund Management Pte. Ltd.
Singapore, U0 |
BUY
|
- |
250KNew |
$19.5M - $36.5M
|
250K
$48M
|
|
|
Nov 14, 2025
Q3 2025
|
Israel Englander
Millennium Management LLC | New York, Ny
|
BUY
|
- |
232K+ 85.57% |
$18.1M - $33.8M
|
504K
$96.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
PUT |
222K+ 108.83% |
$17.2M - $32.3M
|
426K
$81.6M
|
|
|
Nov 13, 2025
Q3 2025
|
Acadian Asset Management LLC
Boston, MA |
BUY
|
- |
179K+ 331.52% |
$13.9M - $26.1M
|
233K
$44.8M
|
|
|
Nov 14, 2025
Q3 2025
|
Polar Capital Holdings PLC
London, X0 |
BUY
|
- |
179K+ 13.91% |
$13.9M - $26M
|
1.46M
$281M
|
|
|
Nov 14, 2025
Q3 2025
|
Blue Crest Capital Management LTD
St Helier, Y9 |
BUY
|
CALL |
170KNew |
$13.2M - $24.8M
|
170K
$32.6M
|
|
|
Nov 13, 2025
Q3 2025
|
Connor, Clark & Lunn Investment Management Ltd.
|
BUY
|
- |
166K+ 185.51% |
$12.9M - $24.1M
|
255K
$48.8M
|
|
|
Nov 13, 2025
Q3 2025
|
Ensign Peak Advisors, Inc
Salt Lake City, UT |
BUY
|
- |
163K+ 311.44% |
$12.7M - $23.7M
|
215K
$41.3M
|
|
|
Oct 29, 2025
Q3 2025
|
Massachusetts Financial Services CO
Boston, MA |
BUY
|
- |
162KNew |
$12.6M - $23.5M
|
162K
$31M
|
|
|
Nov 14, 2025
Q3 2025
|
Trexquant Investment LP
Stamford, CT |
BUY
|
- |
157KNew |
$12.2M - $22.9M
|
157K
$30.1M
|
|
|
Nov 14, 2025
Q3 2025
|
Schonfeld Strategic Advisors LLC
New York, NY |
BUY
|
- |
154KNew |
$12M - $22.5M
|
154K
$29.6M
|
|
|
Nov 10, 2025
Q3 2025
|
Td Asset Management Inc
|
BUY
|
- |
144KNew |
$11.2M - $21M
|
144K
$27.7M
|
|
|
Nov 06, 2025
Q3 2025
|
Cloud Alpha Capital Management Limited
Hong Kong, K3 |
BUY
|
- |
143KNew |
$11.1M - $20.9M
|
143K
$27.5M
|
|
|
Nov 14, 2025
Q3 2025
|
Atreides Management, LP
Boston, MA |
BUY
|
- |
138K+ 10.92% |
$10.7M - $20.1M
|
1.4M
$269M
|
|
|
Nov 14, 2025
Q3 2025
|
Brevan Howard Capital Management LP
St. Helier, Y9 |
BUY
|
- |
131K+ 1845.85% |
$10.2M - $19M
|
138K
$26.4M
|
|
|
Nov 13, 2025
Q3 2025
|
Capital World Investors
Los Angeles, CA |
BUY
|
- |
131K+ 7.65% |
$10.1M - $19M
|
1.84M
$352M
|
|
|
Nov 14, 2025
Q3 2025
|
Paul Tudor Jones
Tudor Investment Corp Et Al | Stamford, Ct
|
BUY
|
PUT |
127K+ 1293.88% |
$9.86M - $18.5M
|
137K
$26.2M
|
|
|
Nov 06, 2025
Q3 2025
|
Gf Fund Management Co. Ltd.
Guangzhou, F4 |
BUY
|
- |
115KNew |
$8.91M - $16.7M
|
115K
$22M
|
|
|
Nov 13, 2025
Q3 2025
|
Ray Dalio
Bridgewater Associates, LP | Westport, Ct
|
BUY
|
- |
114K+ 237.2% |
$8.84M - $16.6M
|
162K
$31M
|
|
|
Nov 12, 2025
Q3 2025
|
American Century Companies Inc
Kansas City, MO |
BUY
|
- |
107K+ 22.35% |
$8.32M - $15.6M
|
586K
$112M
|
|
|
Nov 13, 2025
Q3 2025
|
Deutsche Bank Ag\
Frankfurt Am Main, 2M |
BUY
|
- |
106K+ 35.3% |
$8.24M - $15.4M
|
406K
$77.8M
|
|
|
Nov 13, 2025
Q3 2025
|
Sei Investments CO
Oaks, PA |
BUY
|
- |
99.2K+ 47.04% |
$7.71M - $14.4M
|
310K
$59.4M
|
|
|
Nov 14, 2025
Q3 2025
|
Delta Global Management LP
New York, NY |
BUY
|
- |
93.7K+ 320.13% |
$7.28M - $13.6M
|
123K
$23.6M
|
|
|
Nov 13, 2025
Q3 2025
|
Portolan Capital Management, LLC
Boston, MA |
BUY
|
- |
88.8KNew |
$6.9M - $12.9M
|
88.8K
$17M
|
|
|
Nov 13, 2025
Q3 2025
|
Ubs Group Ag
|
BUY
|
- |
81.9K+ 17.35% |
$6.37M - $11.9M
|
554K
$106M
|
|
|
Nov 14, 2025
Q3 2025
|
Bank Of America Corp
Charlotte, NC |
BUY
|
PUT |
80KNew |
$6.22M - $11.7M
|
80K
$15.3M
|
|
|
Nov 13, 2025
Q3 2025
|
Atika Capital Management LLC
New York, NY |
BUY
|
- |
80KNew |
$6.22M - $11.7M
|
80K
$15.3M
|
|
|
Nov 12, 2025
Q3 2025
|
Talos Asset Management LP
New York, NY |
BUY
|
- |
69.2KNew |
$5.38M - $10.1M
|
69.2K
$13.3M
|
|
|
Nov 13, 2025
Q3 2025
|
Canada Pension Plan Investment Board
Toronto Ontario, A6 |
BUY
|
- |
63.8K+ 1329.17% |
$4.96M - $9.29M
|
68.6K
$13.2M
|
|
|
Nov 14, 2025
Q3 2025
|
Diameter Capital Partners LP
New York, NY |
BUY
|
- |
62KNew |
$4.82M - $9.03M
|
62K
$11.9M
|
|
|
Nov 14, 2025
Q3 2025
|
Man Group PLC
London, X0 |
BUY
|
- |
54KNew |
$4.2M - $7.87M
|
54K
$10.4M
|
|
|
Nov 14, 2025
Q3 2025
|
Natixis
Paris, I0 |
BUY
|
- |
53.6KNew |
$4.17M - $7.81M
|
53.6K
$10.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Aquatic Capital Management LLC
Chicago, IL |
BUY
|
- |
47.8KNew |
$3.72M - $6.97M
|
47.8K
$9.17M
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
- |
47.1K+ 1636.03% |
$3.66M - $6.87M
|
50K
$9.59M
|
|
|
Nov 14, 2025
Q3 2025
|
Qube Research & Technologies LTD
London, X0 |
BUY
|
- |
45.7KNew |
$3.55M - $6.65M
|
45.7K
$8.76M
|
|
|
Nov 14, 2025
Q3 2025
|
Algert Global LLC
San Francisco, CA |
BUY
|
- |
42.6KNew |
$3.31M - $6.21M
|
42.6K
$8.17M
|
|
|
Oct 20, 2025
Q3 2025
|
Calamos Advisors LLC
|
BUY
|
- |
42.1K+ 191.77% |
$3.27M - $6.13M
|
64.1K
$12.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Credit Agricole S A
|
BUY
|
- |
41.6KNew |
$3.23M - $6.06M
|
41.6K
$7.97M
|
|
|
Nov 12, 2025
Q3 2025
|
Lpl Financial LLC
Fort Mill, SC |
BUY
|
- |
41.3K+ 64.52% |
$3.21M - $6.02M
|
105K
$20.2M
|
|
|
Nov 14, 2025
Q3 2025
|
Srs Capital Advisors, Inc.
Denver, CO |
BUY
|
- |
39.8K+ 5820.2% |
$3.09M - $5.79M
|
40.4K
$7.75M
|
|
|
Nov 14, 2025
Q3 2025
|
Ieq Capital, LLC
|
BUY
|
- |
39KNew |
$3.04M - $5.69M
|
39K
$7.48M
|
|
|
Nov 10, 2025
Q3 2025
|
Amitell Capital Pte LTD
Singapore, U0 |
BUY
|
- |
38.9KNew |
$3.02M - $5.67M
|
38.9K
$7.46M
|
|
|
Nov 12, 2025
Q3 2025
|
Geode Capital Management, LLC
Boston, MA |
BUY
|
- |
38.7K+ 1.55% |
$3.01M - $5.64M
|
2.54M
$487M
|
|
|
Nov 14, 2025
Q3 2025
|
Bank Of Nova Scotia
|
BUY
|
- |
35.9KNew |
$2.79M - $5.23M
|
35.9K
$6.89M
|
|
|
Nov 14, 2025
Q3 2025
|
Zurich Insurance Group LTD
Zurich, V8 |
BUY
|
- |
35.9KNew |
$2.79M - $5.23M
|
35.9K
$6.88M
|
|