California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s Ciena CIEN Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio CIEN Stock Details CIEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$81.4M Sell
209,689
-5,095
-2% -$1.56M 0.09% 201
2025
Q4 		$50.2M Buy
214,784
+81,348
+61% +$15.8M 0.05% 295
2025
Q3 		$19.4M Buy
133,436
+54
+0% +$5.5K 0.02% 516
2025
Q2 		$10.8M Sell
133,382
-195
-0.1% -$14K 0.01% 600
2025
Q1 		$8.07M Sell
133,577
-1,528
-1% -$121K 0.01% 659
2024
Q4 		$11.5M Sell
135,105
-1,890
-1% -$136K 0.01% 602
2024
Q3 		$8.44M Sell
136,995
-5,081
-4% -$268K 0.01% 683
2024
Q2 		$6.85M Sell
142,076
-4,023
-3% -$191K 0.01% 744
2024
Q1 		$7.22M Sell
146,099
-11,078
-7% -$584K 0.01% 752
2023
Q4 		$7.07M Sell
157,177
-8,907
-5% -$393K 0.01% 757
2023
Q3 		$7.85M Sell
166,084
-15,730
-9% -$693K 0.01% 692
2023
Q2 		$7.73M Sell
181,814
-4,229
-2% -$193K 0.01% 746
2023
Q1 		$9.77M Sell
186,043
-4,062
-2% -$203K 0.01% 651
2022
Q4 		$9.69M Sell
190,105
-670
-0.4% -$30.3K 0.02% 655
2022
Q3 		$7.71M Sell
190,775
-5,399
-3% -$259K 0.01% 700
2022
Q2 		$8.96M Sell
196,174
-2,836
-1% -$147K 0.01% 677
2022
Q1 		$12.1M Sell
199,010
-16,550
-8% -$1.08M 0.02% 648
2021
Q4 		$16.6M Sell
215,560
-43,987
-17% -$2.71M 0.02% 598
2021
Q3 		$13.3M Sell
259,547
-2,909
-1% -$162K 0.02% 693
2021
Q2 		$14.9M Sell
262,456
-3,122
-1% -$172K 0.02% 673
2021
Q1 		$14.5M Sell
265,578
-637
-0.2% -$34.3K 0.02% 659
2020
Q4 		$14.1M Buy
266,215
+3,855
+1% +$171K 0.02% 635
2020
Q3 		$10.4M Buy
262,360
+5,252
+2% +$276K 0.02% 677
2020
Q2 		$13.9M Buy
257,108
+2,222
+0.9% +$110K 0.02% 539
2020
Q1 		$10.1M Buy
254,886
+15,070
+6% +$618K 0.02% 555
2019
Q4 		$10.2M Sell
239,816
-7,131
-3% -$272K 0.02% 674
2019
Q3 		$9.69M Buy
246,947
+667
+0.3% +$28K 0.02% 668
2019
Q2 		$10.1M Buy
246,280
+26,774
+12% +$1.03M 0.02% 671
2019
Q1 		$8.2M Sell
219,506
-4,881
-2% -$190K 0.02% 726
2018
Q4 		$7.61M Buy
224,387
+5,060
+2% +$160K 0.02% 706
2018
Q3 		$6.85M Sell
219,327
-78
-0% -$2.19K 0.01% 841
2018
Q2 		$5.82M Buy
219,405
+849
+0.4% +$21.6K 0.01% 921
2018
Q1 		$5.66M Sell
218,556
-3,942
-2% -$92.8K 0.01% 899
2017
Q4 		$4.66M Sell
222,498
-3,539
-2% -$75K 0.01% 1064
2017
Q3 		$4.97M Sell
226,037
-24,055
-10% -$576K 0.01% 983
2017
Q2 		$6.26M Sell
250,092
-20,467
-8% -$490K 0.01% 899
2017
Q1 		$6.39M Sell
270,559
-12,700
-4% -$311K 0.01% 931
2016
Q4 		$6.91M Sell
283,259
-7,800
-3% -$170K 0.01% 880
2016
Q3 		$6.34M Buy
291,059
+2,600
+0.9% +$54.2K 0.01% 910
2016
Q2 		$5.41M Buy
288,459
+26,264
+10% +$476K 0.01% 980
2016
Q1 		$4.99M Buy
262,195
+33,474
+15% +$618K 0.01% 1018
2015
Q4 		$4.73M Buy
228,721
+3,610
+2% +$82.9K 0.01% 988
2015
Q3 		$4.66M Buy
225,111
+10,156
+5% +$236K 0.01% 990
2015
Q2 		$5.09M Buy
214,955
+22,832
+12% +$521K 0.01% 1019
2015
Q1 		$3.71M Sell
192,123
-3,600
-2% -$71.7K 0.01% 1193
2014
Q4 		$3.8M Buy
195,723
+1,829
+0.9% +$30.5K 0.01% 1172
2014
Q3 		$3.24M Buy
193,894
+2,101
+1% +$41.2K 0.01% 1240
2014
Q2 		$4.15M Buy
191,793
+7,300
+4% +$150K 0.01% 1113
2014
Q1 		$4.2M Buy
184,493
+700
+0.4% +$16.5K 0.01% 1053
2013
Q4 		$4.4M Buy
183,793
+1,200
+0.7% +$28.6K 0.01% 1020
2013
Q3 		$4.56M Buy
182,593
+5,674
+3% +$128K 0.01% 948
2013
Q2 		$3.44M Buy
+176,919
New +$2.95M 0.01% 1040

Other funds holding CIEN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

California State Teachers Retirement System (CalSTRS)'s CIEN Position: Q1 2026 in Review

California State Teachers Retirement System (CalSTRS) reduced its Ciena (CIEN) stake by 2.4% in Q1 2026, selling an estimated $1.56M and leaving 209,689 shares worth $81.4M. The position accounts for 0.09% of the portfolio, ranked #201.

California State Teachers Retirement System (CalSTRS) first reported a position in CIEN in Q2 2013 and has held it in 52 quarters since. 1,080 funds tracked by Wall St. Rank hold CIEN as of Q1 2026.

  • California State Teachers Retirement System (CalSTRS) held 209,689 shares of Ciena worth $81.4M as of Q1 2026.
  • California State Teachers Retirement System (CalSTRS) sold 5,095 Ciena shares in Q1 2026, an estimated $1.56M.
  • Ciena made up 0.09% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q1 2026, its #201 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Ciena in Q2 2013 and has held it in 52 quarters since.
  • 1,080 funds tracked by Wall St. Rank held Ciena as of Q1 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q1 2026, filed 18 May 2026.