Lettmann Jason

CHIEF EXECUTIVE OFFICER at ALX ONCOLOGY HOLDINGS INC · on record since Sep 12, 2023
Director at Ra Pharmaceuticals, Inc. · on record since Oct 31, 2016
10% owner at Ra Pharmaceuticals, Inc. · on record since Jun 22, 2017
Director at ALX ONCOLOGY HOLDINGS INC · on record since Jul 21, 2020
10% owner at ALX ONCOLOGY HOLDINGS INC · on record since Jul 21, 2020

Insider trading activity of Lettmann Jason

Transactions on record: 92; since Oct 31, 2016

Open-market buys: 8; $12.9M

Open-market sells: 33; $13.6M

Companies traded: 2; last filing Aug 18, 2026

Figures computed from official regulatory filings — .

Companies where Lettmann Jason has traded

ALX ONCOLOGY HOLDINGS INC71 tx · $21.4M · Aug 18, 2026
Ra Pharmaceuticals, Inc.21 tx · $5.1M · Jun 22, 2017

Track record of Lettmann Jason

Statistical track record

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Open-market buys: 8

Last buy: Sep 17, 2025

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Transaction history of Lettmann Jason

Co-insiders of Lettmann Jason

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
ALX ONCOLOGY HOLDINGS INCListing on record	Aug 18, 2026	Sell	-2,230	1.93 USD	$4.3K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Mar 23, 2026	Sell	-12,311	2.17 USD	$26.7K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Feb 19, 2026	Other	-2,201	2.27 USD	$5K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Jan 28, 2026	AwardD (derivative)	912,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Oct 16, 2025	AwardD (derivative)	597,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Sep 18, 2025	Buy	71,163	1.08 USD	$76.9K	conv 26	SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Sep 18, 2025	Buy	21,070	1.07 USD	$22.5K	conv 27First in 12mo	SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Aug 19, 2025	Sell	-2,382	0.64 USD	$1.5K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Apr 15, 2025	AwardD (derivative)	125,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Mar 18, 2025	Award	42,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Feb 21, 2025	Sell	-2,159	1.15 USD	$2.5K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Jan 23, 2025	AwardD (derivative)	478,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 4, 2024	AwardD (derivative)	200,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Aug 16, 2024	Other	-2,191	2.58 USD	$5.7K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Mar 18, 2024	Buy	4,400	11.31 USD	$49.8K	conv 33First in 12mo	SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Feb 16, 2024	Award	60,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Feb 16, 2024	AwardD (derivative)	190,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Sep 12, 2023	AwardD (derivative)	1,200,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Jun 22, 2023	AwardD (derivative)	20,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Jun 16, 2022	AwardD (derivative)	12,004	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 15, 2021	Sell	-440	30.23 USD	$13.3K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 15, 2021	Sell	-1,627	25.29 USD	$41.1K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 15, 2021	Sell	-60	30.23 USD	$1.8K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 15, 2021	Sell	-181	29.60 USD	$5.4K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 15, 2021	Sell	-1,296	27.49 USD	$35.6K		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
ALX ONCOLOGY HOLDINGS INCListing on record	Aug 18, 2026	Sell	-2,230	1.93 USD	$4.3K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Mar 23, 2026	Sell	-12,311	2.17 USD	$26.7K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Feb 19, 2026	Other	-2,201	2.27 USD	$5K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Jan 28, 2026	AwardD (derivative)	912,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Oct 16, 2025	AwardD (derivative)	597,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Sep 18, 2025	Buy	71,163	1.08 USD	$76.9K	conv 26	SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Sep 18, 2025	Buy	21,070	1.07 USD	$22.5K	conv 27First in 12mo	SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Aug 19, 2025	Sell	-2,382	0.64 USD	$1.5K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Apr 15, 2025	AwardD (derivative)	125,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Mar 18, 2025	Award	42,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Feb 21, 2025	Sell	-2,159	1.15 USD	$2.5K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Jan 23, 2025	AwardD (derivative)	478,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 4, 2024	AwardD (derivative)	200,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Aug 16, 2024	Other	-2,191	2.58 USD	$5.7K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Mar 18, 2024	Buy	4,400	11.31 USD	$49.8K	conv 33First in 12mo	SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Feb 16, 2024	Award	60,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Feb 16, 2024	AwardD (derivative)	190,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Sep 12, 2023	AwardD (derivative)	1,200,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Jun 22, 2023	AwardD (derivative)	20,200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Jun 16, 2022	AwardD (derivative)	12,004	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 15, 2021	Sell	-440	30.23 USD	$13.3K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 15, 2021	Sell	-1,627	25.29 USD	$41.1K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 15, 2021	Sell	-60	30.23 USD	$1.8K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 15, 2021	Sell	-181	29.60 USD	$5.4K		SEC
ALX ONCOLOGY HOLDINGS INCListing on record	Dec 15, 2021	Sell	-1,296	27.49 USD	$35.6K		SEC