NASDAQ:NITE

Nightstar Therapeutics Stock Insider Trading

*Your capital is at risk

$39.28

-1.29 (-3.17%)

At Close: Jun 03, 2026

Nightstar Therapeutics Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at 0. In total, the insiders bought 1.29M and sold 29.22M NITE shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	0
● Buy	1.29M shares
● Sell	29.22M shares
36% Buy Activity Negligible or No Correlation
No Significant Signals No statistically significant buy or sell signals detected in recent insider data.

Historical Insider Trades

Date	Type	Person	Role	Amount
Jun 07, 2019 Sell	Ordinary Shares D-Return	Mott David M	Director	6 662 532 Value: $0.17B
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Mott David M	Director	36 400 Value: $446.6K
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Mott David M	Director	21 000 Value: $285.0K
Jun 07, 2019 Sell	Ordinary Shares D-Return	New Enterprise Associates 15, L.p. 10 Percent Owner	10% Owner	6 662 532 Value: $0.17B
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Yoon Seokho Bryan General Counsel And Secretary	Officer	160 000 Value: $3.64M
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Yoon Seokho Bryan General Counsel And Secretary	Officer	15 000 Value: $213.6K
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Yoon Seokho Bryan General Counsel And Secretary	Officer	85 100 Value: $1.25M
Jun 07, 2019 Sell	Ordinary Shares D-Return	Sundaram Senthil Vel Chief Financial Officer	C-Suite Officer	126 886 Value: $3.24M
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Sundaram Senthil Vel Chief Financial Officer	C-Suite Officer	60 000 Value: $854.4K
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Sundaram Senthil Vel Chief Financial Officer	C-Suite Officer	108 700 Value: $1.60M
Jun 07, 2019 Sell	Ordinary Shares D-Return	Robinson Gregory Scott Chief Scientific Officer	Officer	103 182 Value: $2.63M
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Robinson Gregory Scott Chief Scientific Officer	Officer	75 000 Value: $1.07M
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Robinson Gregory Scott Chief Scientific Officer	Officer	91 400 Value: $1.35M
Jun 07, 2019 Sell	Ordinary Shares D-Return	Ong Tuyen Chief Development Officer	Officer	80 479 Value: $2.05M
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Ong Tuyen Chief Development Officer	Officer	37 500 Value: $534.0K
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Ong Tuyen Chief Development Officer	Officer	97 400 Value: $1.44M
Jun 07, 2019 Sell	Ordinary Shares D-Return	Mcarthur James G Director	Director	37 237 Value: $949.5K
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Mcarthur James G Director	Director	18 200 Value: $223.3K
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Mcarthur James G Director	Director	21 000 Value: $285.0K
Jun 07, 2019 Sell	Ordinary Shares D-Return	Lubner David Charles Director	Director	29 124 Value: $742.7K
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Lubner David Charles Director	Director	18 200 Value: $223.3K
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Lubner David Charles Director	Director	21 000 Value: $285.0K
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Lubner David Charles Director	Director	21 000 Value: $285.0K
Jun 07, 2019 Sell	Stock Option (Right to Buy) D-Return	Lubner David Charles Director	Director	18 200 Value: $223.3K
Jun 07, 2019 Sell	Ordinary Shares D-Return	Lubner David Charles Director	Director	29 124 Value: $742.7K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks