Insider · CIK 0001244203

BUZBY DAVID S

Reports to the SEC for 6 companies · HOUSTON, TX

sec.gov

Transactions

Companies

Filings

CIK

0001244203

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-08-07	STEMSTEM, INC. · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−7,486 sh	—	—	0
2026-08-07	STEMSTEM, INC.M Exercise/Conversion	Director	MExercise/Conversion	+7,486 sh	—	—	7,486
2026-06-03	STEMSTEM, INC. · Restricted Stock UnitA Award	Director	AAward	+12.2K sh	—	—	12,168
2026-02-24	SVIIFSpring Valley Acquisition Corp. IID Disposition to Issuer	Director	DDisposition to Issuer	−40K sh	—	—	0
2025-07-03	STEMSTEM, INC.G Gift	Director	GGift	+5,511 sh	—	—	37,571
2025-07-03	STEMSTEM, INC.G Gift	Director	GGift	−5,511 sh	—	—	478
2025-06-04	STEMSTEM, INC. · Restricted Stock UnitA Award	Director	AAward	+150K sh	—	—	149,723
2025-05-29	STEMSTEM, INC.M Exercise/Conversion	Director	MExercise/Conversion	+110K sh	—	—	230,025
2025-05-29	STEMSTEM, INC. · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−110K sh	—	—	0
2025-01-14	STEMSTEM, INC. · Stock Option (Right to Buy)A Award	Director	AAward	+66.7K sh	—	—	66,667
2024-08-28	STEMSTEM, INC. · Stock Option (Right to Buy)A Award	Director	AAward	+400K sh	—	—	400,000
2024-06-07	STEMSTEM, INC. · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−23.5K sh	—	—	110,236
2024-06-07	STEMSTEM, INC.M Exercise/Conversion	Director	MExercise/Conversion	+23.5K sh	—	—	119,789
2024-05-29	STEMSTEM, INC. · Restricted Stock UnitA Award	Director	AAward	+110K sh	—	—	133,725
2024-03-18	STEMSTEM, INC.P Purchase	Director	PPurchase	+33.8K sh	$1.81	+$61.2K	768,448
2024-03-18	STEMSTEM, INC.P Purchase	Director	PPurchase	+33.8K sh	$1.81	+$61.2K	96,300
2024-03-15	STEMSTEM, INC.P Purchase	Director	PPurchase	+62.5K sh	$1.84	+$115K	62,500
2024-03-15	STEMSTEM, INC.P Purchase	Director	PPurchase	+62.5K sh	$1.84	+$115K	734,648
2024-01-25	SVIIFSpring Valley Acquisition Corp. II · Class B ordinary sharesC Conversion	Director	CConversion	−40K sh	—	—	0
2024-01-25	SVIIFSpring Valley Acquisition Corp. IIC Conversion	Director	CConversion	+40K sh	—	—	40,000
2023-09-15	STEMSTEM, INC.P Purchase	Director	PPurchase	+62K sh	$4.82	+$299K	620,711
2023-06-20	STEMSTEM, INC.G Gift	Director	GGift	+20.5K sh	—	—	641,209
2023-06-20	STEMSTEM, INC.G Gift	Director	GGift	−20.5K sh	—	—	0
2023-06-15	STEMSTEM, INC.M Exercise/Conversion	Director	MExercise/Conversion	+20.5K sh	—	—	20,498
2023-06-15	STEMSTEM, INC. · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−20.5K sh	—	—	23,489
2023-06-07	STEMSTEM, INC. · Restricted Stock UnitA Award	Director	AAward	+23.5K sh	—	—	43,987
2022-09-09	STEMSTEM, INC.S Sale	Director	SSale	−50K sh	$16.21	−$810K	558,711
2022-08-17	STEMSTEM, INC.S Sale	Director	SSale	−67K sh	$15.51	−$1.04M	608,711
2022-07-28	STEMSTEM, INC. · Restricted Stock UnitA Award	Director	AAward	+20.5K sh	—	—	20,498
2022-04-28	STEMSTEM, INC. · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−5,524 sh	—	—	0
2022-04-28	STEMSTEM, INC.M Exercise/Conversion	Director	MExercise/Conversion	+5,524 sh	—	—	672,148
2022-03-08	STEMSTEM, INC.S Sale	Director	SSale	−86.1K sh	$9.01	−$776K	3,563
2021-07-07	STEMSTEM, INC. · Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−27.6K sh	—	—	189,734
2021-07-07	STEMSTEM, INC. · Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−33K sh	—	—	217,330
2021-07-07	STEMSTEM, INC.F Tax Payment	Director	FTax Payment	−11K sh	$34.11	−$377K	666,624
2021-07-07	STEMSTEM, INC.M Exercise/Conversion	Director	MExercise/Conversion	+166K sh	$2.27	+$377K	677,673
2021-07-07	STEMSTEM, INC.F Tax Payment	Director	FTax Payment	−1,012 sh	$34.11	−$34.5K	511,655
2021-07-07	STEMSTEM, INC.M Exercise/Conversion	Director	MExercise/Conversion	+27.6K sh	$1.25	+$34.5K	512,667
2021-07-07	STEMSTEM, INC.F Tax Payment	Director	FTax Payment	−1,209 sh	$34.11	−$41.2K	485,071
2021-07-07	STEMSTEM, INC. · Stock Option (Right to Buy)M Exercise/Conversion	Director	MExercise/Conversion	−166K sh	—	—	23,716
2021-07-07	STEMSTEM, INC.M Exercise/Conversion	Director	MExercise/Conversion	+33K sh	$1.25	+$41.2K	486,280
2021-07-02	STEMSTEM, INC. · Restricted Stock UnitA Award	Director	AAward	+5,524 sh	—	—	5,524
2014-12-10	CONVERSANT, INC.D Disposition to Issuer	Director	DDisposition to Issuer	−1,000 sh	—	—	0
2014-12-10	CONVERSANT, INC.D Disposition to Issuer	Director	DDisposition to Issuer	−1,753 sh	—	—	0
2014-12-10	CONVERSANT, INC.D Disposition to Issuer	Director	DDisposition to Issuer	−5,750 sh	—	—	0
2014-12-10	CONVERSANT, INC.D Disposition to Issuer	Director	DDisposition to Issuer	−68.8K sh	—	—	0
2014-12-10	CONVERSANT, INC.D Disposition to Issuer	Director	DDisposition to Issuer	−6,414 sh	—	—	0
2014-12-10	CONVERSANT, INC.D Disposition to Issuer	Director	DDisposition to Issuer	−2,000 sh	—	—	0
2014-12-10	CONVERSANT, INC.D Disposition to Issuer	Director	DDisposition to Issuer	−45 sh	—	—	0
2014-12-10	CONVERSANT, INC.D Disposition to Issuer	Director	DDisposition to Issuer	−38.1K sh	—	—	0

Recent filings

Accepted (ET)
Aug 114
BUZBY DAVID S0001244203-26-000004
SEC(opens sec.gov)
Jun 44
BUZBY DAVID S0001244203-26-000002
SEC(opens sec.gov)
Feb 264
BUZBY DAVID S0001104659-26-020566
SEC(opens sec.gov)
Jul 84
BUZBY DAVID S0000950170-25-094535
SEC(opens sec.gov)
Jun 64
BUZBY DAVID S0000950170-25-083361
SEC(opens sec.gov)
Jun 24
BUZBY DAVID S0000950170-25-080372
SEC(opens sec.gov)
Jan 164
BUZBY DAVID S0000950170-25-006286
SEC(opens sec.gov)
Aug 304
BUZBY DAVID S0001758766-24-000161
SEC(opens sec.gov)
Jun 104/A
BUZBY DAVID S0001758766-24-000130
SEC(opens sec.gov)
Jun 104
BUZBY DAVID S0001758766-24-000135
SEC(opens sec.gov)
May 304
BUZBY DAVID S0001758766-24-000125
SEC(opens sec.gov)
Mar 204
BUZBY DAVID S0001758766-24-000058
SEC(opens sec.gov)
Mar 184
BUZBY DAVID S0001758766-24-000057
SEC(opens sec.gov)

Companies

Address

1400 POST OAK BLVD SUITE 560

HOUSTON, TX, 77056