Jeffrey Stein Net Worth - Insider Trades and Bio as of Jul 13, 2026

IDYAIDEAYA Biosciences, Inc.SEC CIK: 0001478831

Estimated Net Worth

$15.3 Million

Last Updated: May 19, 2026 11:38 PM EST

Transaction Summary

Total Transactions67

Buy-Sell Ratio8.00

Buy Transactions16

Sell Transactions2

Transaction Volume

Total Volume$3.95M

Net Volume$4.02M

Buy Volume$3.99M

Sell Volume-$37.40K

Trade Analysis

AVG Trade Size-$341.51K

Largest Trade$1.65M

Most Active MonthMar

Most Active Year2019

Trading Sentiment

OverallBullish

Recent TradeBuying

Last 90 Days0 Trades

ConvictionNone

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Jeffrey Stein has an estimated net worth of $15.3 Million. This is based on reported shares across multiple companies, which include Trius Therapeutics Inc, IDEAYA Biosciences, Inc., Cidara Therapeutics, Inc., and Paratek Pharmaceuticals, Inc..

2021 was Jeffrey Stein's most active year for acquiring shares with 10 total transactions. Jeffrey Stein's most active month to acquire stocks was the month of February. 2026 was Jeffrey Stein's most active year for disposing of shares, totalling 14 transactions. Jeffrey Stein's most active month to dispose stocks was the month of August. 2026 saw Jeffrey Stein paying a total of $1,647,890.00 for 50,000 shares, this is the most they've acquired in one year. In 2026 Jeffrey Stein cashed out on 1,093,895 shares for a total of $16,754,260.00, their largest year based on trade value.

Holdings & Transactions

IDYAideaya biosciences, inc.

Updated: Mar 02, 2026VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	11.68	50.00K	$32.96	$1.65M	Mar 02, 2026	61.01K	Purchase	—	Mar 02	View
From 4	—	20.00K	—	—	Jun 26, 2025	20.00K	Grant	—	Jun 24	View
From 4	—	16.20K	—	—	May 31, 2024	16.20K	Grant	—	May 31	View
From 4	—	16.20K	—	—	Jun 09, 2023	16.20K	Grant	—	Jun 07	View
From 4	—	11.00K	—	—	Jun 10, 2022	11.00K	Grant	—	Jun 09	View
From 4	—	11.00K	—	—	Jun 16, 2021	11.00K	Grant	—	Jun 10	View
From 4	—	11.00K	—	—	Jun 18, 2020	11.00K	Grant	—	Jun 16	View
From 4	—	1.25K	—	—	Dec 19, 2019	1.25K	Grant	—	Sep 24	View
From 3	—	—	—	—	May 22, 2019	11.01K	—	—	—	View

CDTXcidara therapeutics, inc.

President & CEO Director

Updated: Jan 07, 2026VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-1.00	1.09M	$221.50	-$16.75M	Jan 07, 2026	—	Disposition	—	Jan 07	View
From 4	-0.02	1.86K	$79.55	$339.04K	Jan 07, 2026	75.64K	Disposition	—	May 23 - 31	View
From 4	-0.05	5.42K	—	—	Dec 29, 2025	98.39K	Grant	—	Dec 10 - 22	View
From 4	-0.04	2.29K	$219.60	-$501.79K	Dec 12, 2025	82.88K	Tax	—	Dec 10	View
From 4	—	275.00K	—	—	Apr 02, 2025	275.00K	Grant	—	Mar 31	View
From 4	—	560.89K	—	—	Oct 02, 2024	560.89K	Grant	—	Sep 30	View
From 4	0.48	8.00K	$13.21	$105.68K	Jun 11, 2024	84.56K	Purchase	—	Jun 07	View
From 4	—	1.04M	—	—	Mar 20, 2024	2.57M	Grant	—	Mar 15	View
From 4	-0.05	56.69K	$0.69	-$39.12K	Mar 12, 2024	1.53M	Tax	—	Mar 11	View
From 4	0.18	50.00K	$0.96	$47.89K	Aug 08, 2023	1.58M	Purchase	—	Aug 08	View
From 4	0.88	815.25K	—	—	Mar 29, 2023	2.07M	Grant	—	Mar 27	View
From 4	0.22	50.00K	$1.04	$51.86K	Mar 27, 2023	1.25M	Purchase	—	Mar 27	View
From 4	1.56	762.76K	$0.83	-$117.02K	Apr 04, 2022	1.53M	Grant	—	Mar 31	View
From 4	—	—	—	—	Jan 07, 2022	783.49K	Options	—	Dec 29	View
From 4	0.12	50.00K	$1.59	$79.53K	Nov 15, 2021	739.49K	Purchase	—	Nov 12	View
From 4	0.14	50.00K	$1.74	$86.76K	Aug 19, 2021	689.49K	Purchase	—	Aug 18 - 19	View
From 4	0.03	10.00K	—	—	Apr 05, 2021	635.49K	Grant	—	Mar 31	View
From 4	—	525.00K	—	—	Mar 19, 2021	1.15M	Grant	—	Mar 17	View
From 4	0.17	50.00K	$2.00	$100.02K	Nov 12, 2020	621.49K	Purchase	—	Nov 10	View
From 4	—	330.00K	—	—	Mar 23, 2020	330.00K	Grant	—	Mar 19	View
From 4	—	—	$2.51	$100.00K	Jan 30, 2020	567.49K	Options	—	Jan 29	View
From 4	0.30	52.50K	$1.91	$100.10K	Sep 26, 2019	523.65K	Purchase	—	Sep 24	View
From 4	—	—	—	—	Sep 16, 2019	521.15K	Options	—	Sep 12	View
From 4	—	265.00K	—	—	Mar 22, 2019	265.00K	Grant	—	Mar 21	View
From 4	-0.05	10.67K	—	—	Mar 13, 2019	457.15K	Grant	—	Feb 26	View
From 4	—	60.00K	—	—	Feb 01, 2019	60.00K	Options	—	Jan 31	View
From 4	-0.02	4.62K	—	—	Dec 04, 2018	467.82K	Grant	—	Nov 29	View
From 4	8.33	462.77K	$2.42	$1.03M	May 24, 2018	722.44K	Purchase	—	May 23	View
From 4	—	235.00K	—	—	Apr 02, 2018	235.00K	Grant	—	Mar 29	View
From 4	0.17	7.35K	$6.79	$49.91K	Sep 12, 2017	255.97K	Purchase	—	Sep 12	View
From 4	0.51	15.00K	$5.95	$89.21K	Jun 07, 2017	248.62K	Purchase	—	Jun 05	View
From 4	16.29	232.90K	$7.75	$99.98K	Apr 04, 2017	451.31K	Purchase	—	Mar 31	View
From 4	0.02	4.31K	$11.51	$49.61K	May 23, 2016	215.80K	Purchase	—	May 20	View
From 4	—	159.00K	—	—	Mar 18, 2016	159.00K	Grant	—	Mar 16	View
From 4	—	6.70K	$15.09	$101.12K	Nov 27, 2015	206.09K	Purchase	—	Nov 24 - 25	View
From 4	—	420.00	$16.00	$6.72K	Apr 21, 2015	199.81K	Purchase	—	Apr 20	View
From 3	—	—	—	—	Apr 14, 2015	199.39K	—	—	—	View

paratek pharmaceuticals, inc.

Updated: Sep 21, 2023

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-1.00	130.63K	—	—	Sep 21, 2023	—	Disposition	—	Sep 21	View
From 4	-0.09	7.00K	$1.90	-$13.30K	Feb 23, 2023	68.63K	Sale	Scheduled	Feb 21	View
From 4	0.36	20.00K	—	—	Feb 09, 2023	75.63K	Grant	—	Feb 08	View
From 4	0.56	20.00K	—	—	Feb 18, 2022	55.63K	Grant	—	Feb 16	View
From 4	0.60	16.00K	—	—	Feb 22, 2021	42.63K	Grant	—	Feb 18	View
From 4	0.91	16.00K	—	—	Feb 21, 2020	33.63K	Grant	—	Feb 19	View
From 4	1.23	12.50K	—	—	Feb 28, 2019	22.63K	Grant	—	Feb 26	View
From 4	-0.25	3.38K	$7.14	-$24.10K	Feb 20, 2019	10.13K	Sale	Scheduled	Feb 15	View
From 4	2.08	12.50K	—	—	Feb 16, 2018	18.50K	Grant	—	Feb 14	View
From 4	—	12.00K	—	—	Feb 06, 2017	12.00K	Grant	—	Feb 02	View
From 4	—	12.00K	—	—	Feb 08, 2016	12.00K	Grant	—	Feb 04	View
From 4	—	20.00K	—	—	Feb 06, 2015	20.00K	Grant	—	Feb 04	View
From 3	—	—	—	—	Nov 03, 2014	—	—	—	—	View

trius therapeutics inc