PRENDERGAST JOHN K A

Director at AVAX TECHNOLOGIES INC · on record since Mar 31, 2006
Director at MEDICINOVA INC · on record since Jan 9, 2006
Director at AVIGEN INC \DE · on record since Jun 1, 2006
Director at PALATIN TECHNOLOGIES INC · on record since Sep 21, 2006
Director at Scorpius Holdings, Inc. · on record since Apr 25, 2016
Director at NightHawk Radiology Holdings Inc · on record since Dec 9, 2022

Insider trading activity of PRENDERGAST JOHN K A

Transactions on record: 117; since Dec 5, 2003

Open-market buys: 4; $86.3K

Open-market sells: 15; $310.4K

Companies traded: 6; last filing Aug 5, 2026

Figures computed from official regulatory filings — .

Companies where PRENDERGAST JOHN K A has traded

PALATIN TECHNOLOGIES INC50 tx · $8.3K · Aug 5, 2026
NightHawk Radiology Holdings Inc1 tx · Dec 9, 2022
Scorpius Holdings, Inc.10 tx · $205.5K · Jan 3, 2022
MEDICINOVA INC12 tx · Jul 20, 2011
AVIGEN INC \DE31 tx · $105K · Dec 22, 2009
AVAX TECHNOLOGIES INC13 tx · $4.9B · Nov 19, 2008

Track record of PRENDERGAST JOHN K A

Statistical track record

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Open-market buys: 10

Last buy: Oct 24, 2008

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of PRENDERGAST JOHN K A

Co-insiders of PRENDERGAST JOHN K A

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
PALATIN TECHNOLOGIES INCListing on record	Aug 5, 2026	OtherD (derivative)	2,900	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Dec 11, 2025	AwardD (derivative)	1,600	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Dec 11, 2025	Award	1,300	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Dec 11, 2025	Award	1,300	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Dec 11, 2025	AwardD (derivative)	1,600	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jul 16, 2024	Award	16,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jul 16, 2024	OtherD (derivative)	23,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 22, 2023	AwardD (derivative)	22,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 22, 2023	Award	13,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NightHawk Radiology Holdings IncListing unverified	Dec 9, 2022	AwardD (derivative)	203,921	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 24, 2022	Award	99,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 24, 2022	AwardD (derivative)	173,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	Jan 3, 2022	AwardD (derivative)	129,820	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	Jan 3, 2022	OtherD (derivative)	-129,820	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	Dec 15, 2021	AwardD (derivative)	129,820	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 24, 2021	Award	105,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 24, 2021	AwardD (derivative)	173,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	May 18, 2021	Sell	-35,000	5.87 USD	$205.5K	Unusual size	SEC
Scorpius Holdings, Inc.Listing on record	Jan 6, 2021	Award	138,272	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 18, 2020	AwardD (derivative)	172,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 18, 2020	Award	99,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	Jan 2, 2020	Award	400,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 26, 2019	AwardD (derivative)	70,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 26, 2019	Award	84,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	Jan 3, 2019	Award	300,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
PALATIN TECHNOLOGIES INCListing on record	Aug 5, 2026	OtherD (derivative)	2,900	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Dec 11, 2025	AwardD (derivative)	1,600	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Dec 11, 2025	Award	1,300	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Dec 11, 2025	Award	1,300	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Dec 11, 2025	AwardD (derivative)	1,600	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jul 16, 2024	Award	16,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jul 16, 2024	OtherD (derivative)	23,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 22, 2023	AwardD (derivative)	22,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 22, 2023	Award	13,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NightHawk Radiology Holdings IncListing unverified	Dec 9, 2022	AwardD (derivative)	203,921	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 24, 2022	Award	99,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 24, 2022	AwardD (derivative)	173,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	Jan 3, 2022	AwardD (derivative)	129,820	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	Jan 3, 2022	OtherD (derivative)	-129,820	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	Dec 15, 2021	AwardD (derivative)	129,820	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 24, 2021	Award	105,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 24, 2021	AwardD (derivative)	173,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	May 18, 2021	Sell	-35,000	5.87 USD	$205.5K	Unusual size	SEC
Scorpius Holdings, Inc.Listing on record	Jan 6, 2021	Award	138,272	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 18, 2020	AwardD (derivative)	172,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 18, 2020	Award	99,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	Jan 2, 2020	Award	400,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 26, 2019	AwardD (derivative)	70,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PALATIN TECHNOLOGIES INCListing on record	Jun 26, 2019	Award	84,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Scorpius Holdings, Inc.Listing on record	Jan 3, 2019	Award	300,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC