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Insider Trading Intelligence
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NT

Nikos Theodosopoulos

ADTN
DIRECTOR · ADTRAN HOLDINGS, INC. · CIK 0001605860
FILING MIX · LIFETIME55%/45%
BUYS
54
SELLS
45
TOTAL VALUE
$7.42M
COMPANIES
4
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
311,283
AVG SELL PX
$71.01
TRADE KIND
SHOWING 99 / 99
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
20 backtested trades · 8 horizons · 12 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Nikos Theodosopoulos, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d20+80.00%-2.12%-0.48%-1.65%-2.19%—
14d20+55.00%-1.50%+0.67%-2.17%-3.46%—
30d20+75.00%-3.30%-1.11%-2.19%-3.58%—
60d20+65.00%+3.61%+1.68%+1.64%+0.24%—
90d20+45.00%+12.75%+6.57%+6.30%+14.30%—
180d20(3 pending)+23.53%+26.18%+14.51%+7.94%+2.43%—
1y20(4 pending)+6.25%+60.13%+29.82%+30.31%+30.41%—
2y20(5 pending)+0.00%+97.52%+20.34%+77.18%+90.97%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ADTN · 65,963 shares · as of Dec 31, 2025
016,49132,98249,47265,963202320242025SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 54 buys / 45 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
HTGC
HERCULES CAPITAL, INC.
PURCHASE
7,317$14.35$105.0K29,362Mar 26, 2026Mar 30, 2026 ↗View →
HTGC
HERCULES CAPITAL, INC.
PURCHASE
2,600$14.21$36.9K21,523Feb 27, 2026Feb 27, 2026 ↗View →
HTGC
HERCULES CAPITAL, INC.
PURCHASE
6,165$15.93$98.2K18,923Feb 17, 2026Feb 19, 2026 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
13,809——65,963Dec 31, 2025Jan 5, 2026 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASE
12,859$7.81$100.4K52,154Nov 26, 2025Dec 1, 2025 ↗View →
HTGC
HERCULES CAPITAL, INC.
PURCHASE
5,999$17.49$104.9K11,960May 8, 2025May 9, 2025 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
14,406——39,295Dec 31, 2024Jan 3, 2025 ↗View →
HTGC
HERCULES CAPITAL, INC.
PURCHASE
1,608$18.03$29.0K5,613Aug 6, 2024Aug 8, 2024 ↗View →
HTGC
HERCULES CAPITAL, INC.
PURCHASEGRANT
Stock grant
3,030$19.80$60.0K4,005Jun 20, 2024Jun 24, 2024 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
SALE
168.424——0Dec 31, 2023Jan 3, 2024 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
16,349——24,889Dec 31, 2023Jan 3, 2024 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASE
168.424——8,540.424Dec 31, 2023Jan 3, 2024 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
SALE
0.424$7.34$38,540Dec 31, 2023Jan 3, 2024 ↗View →
HTGC
HERCULES CAPITAL, INC.
PURCHASEGRANT
Stock grant
28$15.87$444951Nov 22, 2023Nov 27, 2023 ↗View →
HTGC
HERCULES CAPITAL, INC.
PURCHASEGRANT
Stock grant
923$16.24$15.0K923Sep 21, 2023Sep 25, 2023 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
69.021$8.37$578168.424Sep 5, 2023Sep 7, 2023 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
SALE
0.973——8,372Aug 9, 2023Sep 7, 2023 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASE
45.973——8,372.973Aug 9, 2023Sep 7, 2023 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
SALE
45.973——99.403Aug 9, 2023Sep 7, 2023 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
81.994$9.14$749145.376Jun 6, 2023Jun 8, 2023 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
510——0May 22, 2023May 24, 2023 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
510——26,002May 22, 2023May 24, 2023 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
46.956$15.96$74963.382Mar 21, 2023Mar 23, 2023 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
511——25,492Feb 21, 2023Feb 23, 2023 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
511——510Feb 21, 2023Feb 23, 2023 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,629——8,327Jan 24, 2023Jan 25, 2023 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
4,790——6,698Dec 31, 2022Jan 4, 2023 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
8.861$19.38$17216.426Dec 6, 2022Sep 8, 2022 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
510——24,981Nov 21, 2022Nov 23, 2022 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
510——1,021Nov 21, 2022Nov 23, 2022 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
7.565$22.70$1721,915.565Sep 1, 2022Sep 6, 2022 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
511——1,531Aug 22, 2022Aug 24, 2022 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
511——24,471Aug 22, 2022Aug 24, 2022 ↗View →
HLIT
HARMONIC INC.
SALE
7,054——0Aug 12, 2022Aug 16, 2022 ↗View →
HLIT
HARMONIC INC.
PURCHASE
7,054——189,956Aug 12, 2022Aug 16, 2022 ↗View →
ADTN
ADTRAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,908——1,908Aug 9, 2022Aug 11, 2022 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASEGRANT
Stock grant
2,042——2,042May 31, 2022Jun 2, 2022 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
692——0May 20, 2022May 24, 2022 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
692——23,960May 20, 2022May 24, 2022 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
696——692Feb 22, 2022Feb 24, 2022 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
696——23,268Feb 22, 2022Feb 24, 2022 ↗View →
HLIT
HARMONIC INC.
PURCHASEGRANT
Stock grant
14,395——14,395Feb 17, 2022Feb 22, 2022 ↗View →
HLIT
HARMONIC INC.
PURCHASE
19,157——182,902Feb 15, 2022Feb 17, 2022 ↗View →
HLIT
HARMONIC INC.
SALE
19,157——0Feb 15, 2022Feb 17, 2022 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
692——22,572Nov 22, 2021Nov 24, 2021 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
692——1,388Nov 22, 2021Nov 24, 2021 ↗View →
HLIT
HARMONIC INC.
SALE
30,000$10.60$318.0K163,745Nov 3, 2021Nov 5, 2021 ↗View →
HLIT
HARMONIC INC.
PURCHASE
30,000$7.58$227.4K193,745Nov 3, 2021Nov 5, 2021 ↗View →
HLIT
HARMONIC INC.
SALE
30,000$7.58$227.4K0Nov 3, 2021Nov 5, 2021 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
174——520Aug 20, 2021Aug 24, 2021 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
174——5,470Aug 20, 2021Aug 24, 2021 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASEGRANT
Stock grant
694——694Jun 1, 2021Jun 3, 2021 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
261——5,296May 20, 2021May 24, 2021 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
261——0May 20, 2021May 24, 2021 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
262——261Feb 22, 2021Feb 24, 2021 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
262——5,035Feb 22, 2021Feb 24, 2021 ↗View →
HLIT
HARMONIC INC.
PURCHASEGRANT
Stock grant
19,157——19,157Feb 17, 2021Feb 19, 2021 ↗View →
HLIT
HARMONIC INC.
PURCHASE
23,184——163,745Feb 15, 2021Feb 17, 2021 ↗View →
HLIT
HARMONIC INC.
SALE
23,184——0Feb 15, 2021Feb 17, 2021 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
261——4,773Nov 20, 2020Nov 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
261——523Nov 20, 2020Nov 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
3,375$34.12$115.2K7,887Nov 16, 2020Nov 17, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
3,375——0Nov 16, 2020Nov 17, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
3,375$275.30$929.2K4,512Nov 16, 2020Nov 17, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
1,597$250.47$400.0K5,915Nov 3, 2020Nov 5, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
1,403$251.95$353.5K4,512Nov 3, 2020Nov 5, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
3,000$34.12$102.4K7,512Nov 3, 2020Nov 5, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
3,000——3,375Nov 3, 2020Nov 5, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
3,000$225.31$675.9K4,512Sep 2, 2020Sep 3, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
3,000——6,375Sep 2, 2020Sep 3, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
3,000$34.12$102.4K7,512Sep 2, 2020Sep 3, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
1,082$222.43$240.7K10,205Sep 1, 2020Sep 3, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
9,375——9,375Sep 1, 2020Sep 3, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
2,600$221.30$575.4K11,287Sep 1, 2020Sep 3, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
5,152$223.13$1.15M5,053Sep 1, 2020Sep 3, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
9,375$34.12$319.9K13,887Sep 1, 2020Sep 3, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
541$224.03$121.2K4,512Sep 1, 2020Sep 3, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
700$220.03$154.0K5,062Aug 21, 2020Aug 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
1,250——18,750Aug 21, 2020Aug 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
1,250$34.12$42.6K5,762Aug 21, 2020Aug 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
550$221.92$122.1K4,512Aug 21, 2020Aug 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
262——4,512Aug 20, 2020Aug 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
262——784Aug 20, 2020Aug 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASEGRANT
Stock grant
1,046——1,046May 27, 2020May 29, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
536$223.51$119.8K5,074May 21, 2020May 22, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
268$225.80$60.5K4,250May 21, 2020May 22, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
1,250——20,000May 21, 2020May 22, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
1,250$34.12$42.6K5,610May 21, 2020May 22, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
556$224.83$125.0K4,518May 21, 2020May 22, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
437——4,360May 20, 2020May 22, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
437——0May 20, 2020May 22, 2020 ↗View →
HLIT
HARMONIC INC.
PURCHASEGRANT
Stock grant
23,184——23,184Mar 18, 2020Mar 20, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
1,250$34.12$42.6K5,283Feb 21, 2020Feb 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
1,360$221.94$301.8K3,923Feb 21, 2020Feb 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
1,250——21,250Feb 21, 2020Feb 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
SALE
436——437Feb 20, 2020Feb 24, 2020 ↗View →
ANET
ARISTA NETWORKS, INC.
PURCHASE
436——4,033Feb 20, 2020Feb 24, 2020 ↗View →
HLIT
HARMONIC INC.
PURCHASE
21,238——140,561Feb 15, 2020Feb 19, 2020 ↗View →
HLIT
HARMONIC INC.
SALE
21,238——0Feb 15, 2020Feb 19, 2020 ↗View →
Other insiders · ADTN
Loading peer insiders…
About this filer
CIK 0001605860
ROLE
Director
PRIMARY
ADTN
COMPANIES
4
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001605860DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

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