Louis G Lange Net Worth - Insider Trades and Bio as of Jul 1, 2026

NAMSNewAmsterdam Pharma Co N.V.SEC CIK: 0001238401

Estimated Net Worth

$32 Million

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

Transaction Summary

Total Transactions94

Buy-Sell Ratio0.13

Buy Transactions2

Sell Transactions16

Transaction Volume

Total Volume-$12.77M

Net Volume$12.96M

Buy Volume$95.00K

Sell Volume-$12.86M

Trade Analysis

AVG Trade Size-$371.11K

Largest Trade$432.03K

Most Active MonthDec

Most Active Year2009

Trading Sentiment

OverallBullish

Recent TradeSelling

Last 90 Days0 Trades

ConvictionNone

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Louis G Lange has an estimated net worth of $32 Million. This is based on reported shares across multiple companies, which include GILEAD SCIENCES INC, Epiphany Technology Acquisition Corp., CymaBay Therapeutics, Inc., Esperion Therapeutics, Inc., BioPlus Acquisition Corp., Audentes Therapeutics, Inc., MAXYGEN INC, CV THERAPEUTICS INC, and NewAmsterdam Pharma Co N.V..

2007 was Louis G Lange's most active year for acquiring shares with 20 total transactions. Louis G Lange's most active month to acquire stocks was the month of November. 2018 was Louis G Lange's most active year for disposing of shares, totalling 32 transactions. Louis G Lange's most active month to dispose stocks was the month of November. 2009 saw Louis G Lange paying a total of $8,705,941.78 for 1,052,448 shares, this is the most they've acquired in one year. In 2020 Louis G Lange cashed out on 368,575 shares for a total of $18,922,500.00, their largest year based on trade value.

Holdings & Transactions

NAMSnewamsterdam pharma co n.v.

Updated: Mar 12, 2026VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-0.81	44.62K	$30.42	-$1.36M	Mar 12, 2026	10.36K	Sale	—	Mar 11	View
From 4	-0.34	28.19K	$20.45	-$315.83K	Mar 10, 2026	54.98K	Sale	—	Mar 06 - 09	View
From 4	2.69	18.70K	—	—	Jan 09, 2026	25.66K	Grant	—	Jan 07	View
From 4	—	—	—	—	Jun 03, 2025	28.19K	Options	—	Jun 01	View
From 4	—	—	—	—	May 02, 2025	28.19K	Options	—	May 01	View
From 4	—	—	—	—	Apr 21, 2025	28.19K	Options	—	Apr 14	View
From 4	0.48	3.31K	—	—	Mar 28, 2025	10.27K	Options	—	Mar 26	View
From 4	—	39.46K	—	—	Jan 08, 2025	64.34K	Grant	—	Jan 06 - 07	View
From 4	0.25	5.00K	$19.00	$95.00K	Feb 21, 2024	24.88K	Purchase	—	Feb 13	View
From 3/A	—	—	—	—	Jan 25, 2024	19.88K	—	—	—	View
From 4	—	10.00K	—	—	Jan 03, 2024	10.00K	Grant	—	Jan 01	View
From 3	—	—	—	—	Dec 29, 2023	9.88K	—	—	—	View

epiphany technology acquisition corp.

Updated: Oct 04, 2022

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 3	—	—	—	—	Oct 04, 2022	—	—	—	—	View

bioplus acquisition corp.

Updated: Dec 02, 2021

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 3	—	—	—	—	Dec 02, 2021	—	—	—	—	View

audentes therapeutics, inc.

Updated: Jan 15, 2020

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-1.00	368.57K	$60.00	-$18.92M	Jan 15, 2020	—	Disposition	—	Jan 15	View
From 4	-0.04	11.00K	$59.60	-$655.59K	Dec 27, 2019	315.38K	Sale	Scheduled	Dec 23	View
From 4	-0.04	11.00K	$32.17	-$353.80K	Sep 25, 2019	326.38K	Sale	Scheduled	Sep 23	View
From 4	-0.07	21.00K	$37.99	-$793.61K	Jun 26, 2019	337.38K	Sale	Scheduled	Jun 24	View
From 4	-0.06	21.56K	$35.98	-$776.07K	Mar 27, 2019	358.38K	Sale	Scheduled	Mar 25	View
From 4	—	16.20K	—	—	Feb 08, 2019	16.20K	Grant	—	Feb 06	View
From 4	-0.08	32.00K	$18.65	-$595.80K	Dec 27, 2018	379.93K	Sale	Scheduled	Dec 24	View
From 4	-0.06	24.00K	$22.49	-$539.76K	Nov 16, 2018	411.93K	Sale	—	Nov 15	View
From 4	-0.07	33.00K	$37.32	-$1.23M	Sep 26, 2018	435.93K	Sale	Scheduled	Sep 24	View
From 4	-0.07	33.00K	$40.75	-$1.34M	Jun 27, 2018	468.93K	Sale	Scheduled	Jun 25	View
From 4	—	10.00K	—	—	Jun 08, 2018	10.00K	Grant	—	Jun 08	View
From 4	-0.09	48.00K	$28.90	-$1.39M	Mar 28, 2018	501.93K	Sale	Scheduled	Mar 26	View
From 4	-0.04	18.00K	$30.88	-$555.79K	Dec 26, 2017	549.93K	Sale	Scheduled	Dec 22	View
From 4	—	9.00K	—	—	Oct 10, 2017	9.00K	Grant	—	Oct 08	View
From 4	-0.02	11.00K	$28.31	-$311.90K	Sep 29, 2017	567.93K	Sale	—	Sep 29	View
From 4	-0.04	18.00K	$28.34	-$509.73K	Sep 26, 2017	578.93K	Sale	Scheduled	Sep 25	View
From 4	-0.03	15.00K	$19.78	-$296.68K	Jun 28, 2017	596.93K	Sale	Scheduled	Jun 26	View
From 4	—	18.00K	—	—	Aug 25, 2016	18.00K	Grant	—	Aug 24	View
From 4	—	—	—	—	Jul 25, 2016	611.93K	Options	—	Jul 25	View
From 3	—	—	—	—	Jul 19, 2016	587.30K	—	—	—	View

CBAYcymabay therapeutics, inc.

Updated: Jun 30, 2015VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	—	9.00K	—	—	Jun 30, 2015	9.00K	Grant	—	Jun 24	View
From 4	—	9.00K	—	—	Jan 08, 2015	9.00K	Grant	—	Jan 07	View
From 4	—	12.97K	—	—	Jan 15, 2014	12.97K	Grant	—	Dec 23	View
From 4	—	21.26K	—	—	Jan 08, 2014	21.26K	Grant	—	Jan 06	View
From 4	—	—	—	—	Dec 27, 2013	3.72K	Acq/Dis	—	Dec 23	View
From 4	—	25.65K	—	—	Nov 01, 2013	25.65K	Grant	—	Oct 31	View
From 3	—	—	—	—	Oct 11, 2013	1.45K	—	—	—	View

ESPResperion therapeutics, inc.

Updated: Jul 01, 2013VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-0.12	29.68K	$14.00	—	Jul 01, 2013	222.85K	Buy-Options	—	Jul 01	View
From 3	—	—	—	—	Jun 25, 2013	—	—	—	—	View

maxygen inc

Updated: Jun 07, 2012

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	0.20	10.00K	—	—	Jun 07, 2012	60.00K	Grant	—	Jun 06	View
From 4	0.25	10.00K	—	—	Jun 01, 2011	50.00K	Grant	—	May 27	View
From 4	0.33	10.00K	—	—	May 27, 2010	40.00K	Grant	—	May 27	View
From 4	—	114.39K	—	—	Sep 24, 2009	94.39K	Grant	—	Sep 22	View
From 4	—	17.50K	—	—	Jun 02, 2008	17.50K	Grant	—	May 30	View
From 4	—	5.00K	—	—	Jun 01, 2007	5.00K	Grant	—	May 30	View
From 4	—	50.00K	—	—	Dec 12, 2005	50.00K	Grant	—	Dec 09	View
From 3	—	—	—	—	Dec 12, 2005	—	—	—	—	View

GILDgilead sciences inc

Updated: Jun 05, 2009VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	—	—	—	—	Jun 05, 2009	—	—	—	—	View
From 4	—	100.00K	—	—	May 08, 2009	100.00K	Grant	—	May 06	View
From 4	—	134.83K	—	—	Apr 27, 2009	134.83K	Grant	—	Apr 17	View
From 3	—	—	—	—	Apr 27, 2009	—	—	—	—	View

cv therapeutics inc

Chairman & CEO Director

Updated: Apr 17, 2009

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-1.00	354.17K	$9.55	-$3.38M	Apr 17, 2009	490.43K	Options	—	Apr 16	View
From 4	-1.00	15.00K	$6.67	-$100.05K	Apr 16, 2009	—	Options	—	Apr 14	View
From 4	-0.04	20.28K	$19.94	-$404.34K	Apr 09, 2009	489.98K	Tax	—	Apr 09	View
From 4	-0.35	479.18K	$15.95	-$1.84M	Apr 03, 2009	880.17K	Sale	—	Apr 02	View
From 4	-0.01	5.03K	$19.88	$125.64K	Mar 26, 2009	461.80K	Options	—	Mar 25	View
From 4	-0.02	22.27K	$15.58	$432.03K	Feb 26, 2009	878.91K	Options	—	Feb 25	View
From 4	-0.00	572.00	$9.33	$4.80K	Jan 20, 2009	311.99K	Options	—	Jan 10 - 15	View
From 4	-0.01	5.03K	$8.91	$56.31K	Dec 23, 2008	740.32K	Options	—	Dec 22	View
From 4	-0.02	5.49K	$8.48	$55.20K	Dec 15, 2008	327.52K	Options	—	Dec 11	View
From 4	-0.01	5.49K	$9.51	$61.91K	Dec 10, 2008	606.65K	Options	—	Dec 09	View
From 4	-0.01	10.05K	$10.42	-$98.20K	Dec 05, 2008	790.02K	Options	—	Jun 23 - 22	View
From 4	-0.01	4.98K	$7.31	-$36.43K	Mar 26, 2008	400.40K	Options	—	Mar 24	View
From 4	-0.01	6.70K	$6.95	$83.73K	Feb 27, 2008	500.49K	Options	—	Feb 26	View
From 4	-0.00	358.00	$8.93	-$3.20K	Jan 11, 2008	300.12K	Options	—	Jan 10	View
From 4	-0.01	5.03K	$9.25	-$46.48K	Dec 26, 2007	390.26K	Options	—	Dec 24	View
From 4	-0.02	5.49K	$9.40	$61.19K	Dec 13, 2007	283.80K	Grant	—	Dec 11	View
From 4	-0.02	5.49K	$9.50	$61.85K	Dec 07, 2007	265.29K	Grant	—	Dec 05	View
From 4	-0.06	13.72K	$10.12	$164.70K	Nov 13, 2007	234.78K	Grant	—	Nov 09	View
From 4	-0.01	4.26K	$8.90	-$39.94K	Sep 26, 2007	572.36K	Options	—	Aug 17 - 24	View
From 4	—	1.00M	—	—	Aug 24, 2007	1.00M	Grant	—	Aug 22	View
From 4	-0.01	3.94K	$10.83	-$56.58K	Jun 26, 2007	569.53K	Options	—	May 17 - 22	View
From 4	-0.01	3.89K	$8.80	-$34.23K	Mar 23, 2007	371.29K	Options	—	Mar 22	View
From 4	—	—	$9.25	$185.00K	Mar 09, 2007	248.15K	Options	—	Mar 08	View
From 4	0.00	292.00	—	—	Feb 26, 2007	186.56K	Options	—	Feb 22	View
From 4	-0.03	10.52K	$13.81	-$145.28K	Jan 05, 2007	290.32K	Options	—	Jan 03	View
From 4	-0.03	9.23K	$13.67	-$126.13K	Dec 27, 2006	313.63K	Options	—	Dec 22	View
From 4	—	84.00K	—	—	Dec 13, 2006	84.00K	Grant	—	Dec 11	View
From 4	-0.02	4.43K	$12.84	-$56.89K	Dec 07, 2006	189.62K	Options	—	Dec 05	View
From 4	—	—	$9.25	—	Aug 25, 2006	220.55K	Options	—	Aug 23	View
From 4	-0.00	120.00	$24.76	-$2.97K	Jan 05, 2006	250.10K	Options	—	Jan 03	View
From 4	—	201.69K	—	—	Dec 23, 2005	201.69K	Grant	—	Dec 22	View
From 4	—	84.00K	—	—	Dec 07, 2005	202.69K	Grant	—	Dec 05	View
From 4	—	235.00K	—	—	Jan 05, 2005	235.00K	Grant	—	Jan 03	View
From 4	—	—	$9.25	—	May 24, 2004	215.93K	Options	—	May 20	View
From 4	1.45	681.66	$14.67	$10.00K	Apr 08, 2004	114.74K	Grant	—	Jan 13	View
From 4	-0.02	1.90K	—	—	Jan 06, 2004	113.76K	Grant	—	Dec 17	View
From 4	—	175.00K	—	—	Dec 12, 2003	175.00K	Grant	—	Dec 11	View
From 4	—	—	$7.50	$37.50K	Oct 31, 2003	115.66K	Options	—	Oct 31	View
From 4	—	—	—	—	Jun 09, 2003	—	—	—	—	View

Benzinga

Benzinga

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Holdings & Transactions