OTCBB:MHTX

Manhattan Scientifics Stock Insider Trading

> Medical - Devices

Buy MHTX

*Your capital is at risk

$0.000001

+0 (+0%)

At Close: Jul 31, 2026

Manhattan Scientifics 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 114.29M and sold 1.31M MHTX 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	114.29M shares
● Sell	1.31M shares
97% 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
Jan 02, 2012 Sell	Common Stock, $.001 par value S-Sale	Theoharis Chris Director	Director	435 395 Value: $23.9K
Jan 02, 2012 Sell	Common Stock, $.001 par value S-Sale	Theoharis Chris Director	Director	435 395 Value: $23.9K
Jan 02, 2012 Sell	Common Stock, $.001 par value S-Sale	Theoharis Chris Director	Director	435 395 Value: $23.9K
Nov 03, 2011 Buy	Common Stock, $.001 par value P-Purchase	Theoharis Chris Director	Director	10 000 Value: $650
Nov 03, 2011 Buy	Common Stock, $.001 par value P-Purchase	Theoharis Chris Director	Director	10 000 Value: $650
Nov 03, 2011 Buy	Common Stock, $.001 par value P-Purchase	Theoharis Chris Director	Director	10 000 Value: $650
Nov 03, 2011 Buy	Common Stock, $.001 par value P-Purchase	Theoharis Chris Director	Director	10 000 Value: $650
Oct 31, 2011 Buy	Common Stock, $.001 par value P-Purchase	Theoharis Chris Director	Director	10 000 Value: $685
Oct 31, 2011 Buy	Common Stock, $.001 par value P-Purchase	Theoharis Chris Director	Director	10 000 Value: $685
Oct 31, 2011 Buy	Common Stock, $.001 par value P-Purchase	Theoharis Chris Director	Director	10 000 Value: $685
Oct 27, 2011 Buy	Common Stock, $.001 par value P-Purchase	Theoharis Chris Director	Director	10 000 Value: $670
Oct 27, 2011 Buy	Common Stock, $.001 par value P-Purchase	Theoharis Chris Director	Director	10 000 Value: $670
Oct 27, 2011 Buy	Common Stock, $.001 par value P-Purchase	Theoharis Chris Director	Director	10 000 Value: $670
Aug 06, 2011 Buy	Common Stock, $.001 par value A-Award	Schatz Larry H Director	Director	2 000 000 Value: $40.0K
Aug 06, 2011 Buy	Common Stock, $.001 par value A-Award	Schatz Larry H Director	Director	2 000 000 Value: $40.0K
Aug 05, 2011 Buy	Stock Options A-Award	Tsoupanarias Emmanuel CEO And Chairman Of The Board	CEO / President	5 000 000 Value: $350.0K
Aug 05, 2011 Buy	Stock Options A-Award	Tsoupanarias Emmanuel CEO And Chairman Of The Board	CEO / President	5 000 000 Value: $350.0K
Jan 04, 2008 Buy	Stock Options	Maslow Marvin 10 Percent Owner	10% Owner	15 000 000 Value: $150.0K
Jan 04, 2008 Buy	Stock Options	Maslow Marvin 10 Percent Owner	10% Owner	15 000 000 Value: $150.0K
Oct 11, 2007 Buy	Common Stock	Theoharis Chris Director	Director	0 Value: $0
Oct 11, 2007 Buy	Warrant	Theoharis Chris Director	Director	800 000 Value: $10.4K
Oct 11, 2007 Buy	Warrant	Theoharis Chris Director	Director	800 000 Value: $10.4K
Oct 11, 2007 Buy	Common Stock	Theoharis Chris Director	Director	0 Value: $0
Oct 11, 2007 Buy	Warrant	Maslow Marvin 10 Percent Owner	10% Owner	800 000 Value: $104.0K
Oct 11, 2007 Buy	Warrant	Maslow Marvin 10 Percent Owner	10% Owner	800 000 Value: $104.0K

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

ABOUT MANHATTAN SCIENTIFICS, INC.

Manhattan Scientifics, Inc., a technology incubator, engages in the development and commercialization of life-enhancing technologies in the United States. It develops technologies in the areas of nano-technologies and nano-medicine. The company was formerly known as Grand Enterprises, Inc. Manhattan Scientifics, Inc. was founded in 1992 and is based in New York, New York....

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