30% off. Use code SUMMERSALE30 at checkout for 30% off for 12 months on Plus, Pro and Premium subscriptions. Subscribe now

Nikos Theodosopoulos

Track

Insider profile

Currently holds positions in ADVA Optical Networking SE, Arista Networks Inc and Harmonic Inc

Performance

Overall performance
3.9
Performance over holding periods
3.9
30 days 90 days 120 days
Average return 3% 8.2% 15.1%
Success rate 83% 68% 82%
Transactions
7 86% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance

Positions

Position Company Period
Independent Chairman of the Supervisory Board ADVA Optical Networking SE Jan. 9, 2015 -
Independent Director Arista Networks Inc March 1, 2014 -
Independent Director Harmonic Inc March 11, 2015 -
Independent Member of the Supervisory Board ADVA Optical Networking SE Dec. 29, 2014 - Jan. 9, 2015
Nikos Theodosopoulos's trades of Hercules Capital Inc's stock


Subscribe to get access to the transaction volume chart and in-chart transaction details
• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-03-30 2026-03-26
B Purchase
85,704 +10.1%
398.46
US$2,638,104 		85,704 +10.1% 398.46 US$2,638,104
2026-02-27 2026-02-27
B Purchase
3,564 -39.5%
47.47
US$3,731,505 		3,564 -39.5% 47.47 US$3,731,505
2026-02-19 2026-02-17
B Purchase
75,249 -20.4%
418.82
US$4,430,852 		75,249 -20.4% 418.82 US$4,430,852
2025-12-01 2025-11-26
US ADTRAN Inc (ADTN)
B Purchase
12,859 +32.7%
7.81
US$100,429 		12,859 +32.7% 7.81 US$100,429
2025-05-09 2025-05-08
B Purchase
5,999 +100.6%
17.49
US$104,923 		5,999 +100.6% 17.49 US$104,923
2024-08-08 2024-08-06
B Purchase
1,608 +40.1%
18.03
US$28,997 		1,608 +40.1% 18.03 US$28,997
2021-11-05 2021-11-03
US Harmonic Inc (HLIT)
S Sale
30,000 -15.5%
10.60
US$318,003 		30,000 -15.5% 10.60 US$318,003
2020-11-17 2020-11-16
PlS Planned sale
3,375 -42.8%
275.30
US$929,153 		3,375 -42.8% 275.30 US$929,153
2020-11-05 2020-11-03
PlS Planned sale
1,403 -23.7%
251.95
US$353,491 		1,403 -23.7% 251.95 US$353,491
2020-11-05 2020-11-03
PlS Planned sale
1,597 -21.3%
250.47
US$400,008 		1,597 -21.3% 250.47 US$400,008
2020-09-03 2020-09-02
PlS Planned sale
3,000 -39.9%
225.31
US$675,922 		3,000 -39.9% 225.31 US$675,922
2020-09-03 2020-09-01
PlS Planned sale
541 -10.7%
224.03
US$121,202 		541 -10.7% 224.03 US$121,202
2020-09-03 2020-09-01
PlS Planned sale
5,152 -50.5%
223.13
US$1,149,582 		5,152 -50.5% 223.13 US$1,149,582
2020-09-03 2020-09-01
PlS Planned sale
1,082 -9.6%
222.43
US$240,673 		1,082 -9.6% 222.43 US$240,673
2020-09-03 2020-09-01
PlS Planned sale
2,600 -18.7%
221.30
US$575,379 		2,600 -18.7% 221.30 US$575,379
2020-08-24 2020-08-21
PlS Planned sale
550 -10.9%
221.92
US$122,054 		550 -10.9% 221.92 US$122,054
2020-08-24 2020-08-21
PlS Planned sale
700 -12.1%
220.03
US$154,024 		700 -12.1% 220.03 US$154,024
2020-05-22 2020-05-21
PlS Planned sale
268 -5.9%
225.80
US$60,514 		268 -5.9% 225.80 US$60,514
2020-05-22 2020-05-21
PlS Planned sale
556 -11.0%
224.83
US$125,005 		556 -11.0% 224.83 US$125,005
2020-05-22 2020-05-21
PlS Planned sale
536 -9.6%
223.51
US$119,799 		536 -9.6% 223.51 US$119,799
2020-02-24 2020-02-21
PlS Planned sale
1,360 -25.7%
221.94
US$301,835 		1,360 -25.7% 221.94 US$301,835
2019-05-22 2019-05-21
PlS Planned sale
10 -0.3%
250.88
US$2,509 		10 -0.3% 250.88 US$2,509
2019-05-22 2019-05-21
PlS Planned sale
100 -3.3%
247.15
US$24,715 		100 -3.3% 247.15 US$24,715
2019-02-22 2019-02-21
PlS Planned sale
110 -4.0%
269.99
US$29,699 		110 -4.0% 269.99 US$29,699