Insider · CIK 0001296998

Guy Macdonald

Period1M 3M 6M 1Y 2Y All datashares as filed — not split-adjusted

Open-market buys & salesbuys $96k · 1sales $6.9M · 10net −$6.8M

Reported trades — common stock

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Jun 26, 2026 AForm 4 →	Jun 30, 4:08 pm EDT	SCYNEXIS INCSCYX	2,875	—	—	12,625	—
May 14, 2018 AForm 4 →	Jan 18, 2019, 6:03 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	5,390	—	—	134,396	—	plan? late
May 12, 2017 AForm 4 →	Jan 19, 2018, 7:44 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	4,667	—	—	129,006	—	plan? late
Feb 9, 2017 MForm 4 →	Feb 13, 4:44 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	30,378	$2.90	$88,096	124,339	—	plan?
Nov 14, 2016 AForm 4 →	Feb 1, 2017, 6:13 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	3,204	—	—	93,961	—	plan? late
Jun 24, 2016 PForm 4 →	Jun 28, 7:52 am EDT	SCYNEXIS INCSCYX	40,000	$2.39	$95,600	40,000	—	plan?
May 16, 2016 MForm 4 →	May 18, 5:37 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	25,323	$0.87	$22,031	90,757	—	plan?
Jan 6, 2016 MForm 4 →	Jan 8, 6:36 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	12,000	$0.87	$10,440	64,000	—	plan?
Sep 1, 2015 SForm 4 →	Sep 3, 5:17 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	$41.57	$415,700	52,000	−16.1%	plan?
Sep 1, 2015 MForm 4 →	Sep 3, 5:17 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	$7.94	$79,400	62,000	—	plan?
Aug 24, 2015 MForm 4 →	Aug 25, 4:25 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	12,000	$0.87	$10,440	52,000	—	plan?
Aug 6, 2015 SForm 4 →	Aug 7, 6:46 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	30,000	$43.65	$1,309,500	40,000	−42.9%	plan?
Aug 3, 2015 SForm 4 →	Aug 3, 8:32 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	$47.45	$474,500	70,000	−12.5%	plan?
Aug 3, 2015 MForm 4 →	Aug 3, 8:32 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	$7.94	$79,400	80,000	—	plan?
Jul 20, 2015 SForm 4 →	Jul 22, 5:54 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	15,000	$50.72	$760,800	70,000	−17.6%	plan?
Jul 1, 2015 SForm 4 →	Jul 2, 7:49 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	$47.92	$479,200	85,000	−10.5%	plan?
Jul 1, 2015 MForm 4 →	Jul 2, 7:49 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	$7.94	$79,400	95,000	—	plan?
Jun 1, 2015 SForm 4 →	Jun 3, 6:35 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	16,087	$41.89	$673,832	85,000	−15.9%	plan?
Jun 1, 2015 MForm 4 →	Jun 3, 6:35 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	30,000	$3.23	$96,800	90,000	—	plan?
May 11, 2015 SForm 4 →	May 13, 7:16 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	20,000	$41.51	$830,200	70,537	−22.1%	plan?
May 11, 2015 MForm 4 →	May 13, 7:16 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	20,000	$7.94	$158,800	90,537	—	plan?
Mar 26, 2015 MForm 4 →	Mar 27, 4:10 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	20,000	$0.87	$17,400	70,537	—	plan?
Mar 2, 2015 SForm 4 →	Mar 4, 4:32 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	$39.65	$396,546	50,537	−16.5%	plan?
Mar 2, 2015 MForm 4 →	Mar 4, 4:32 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	$7.94	$79,400	60,537	—	plan?
Feb 2, 2015 SForm 4 →	Feb 4, 4:34 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	$35.29	$352,916	50,000	−16.7%	plan?
Feb 2, 2015 MForm 4 →	Feb 4, 4:34 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	$7.94	$79,400	60,000	—	plan?
Jan 20, 2015 SForm 4 →	Jan 22, 5:53 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	34,135	$36.59	$1,248,972	50,000	−40.6%	plan?
Jan 20, 2015 MForm 4 →	Jan 22, 5:53 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	34,135	$3.87	$132,144	84,135	—	plan?

Reported trades — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Jun 26, 2026 AForm 4 →	Jun 30, 4:08 pm EDT	SCYNEXIS INCSCYX	2,875	—	—	2,875	—
Jan 17, 2019 AForm 4 →	Jan 18, 6:03 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	400,000	—	—	300,000	—
Jan 2, 2019 AForm 4 →	Jan 4, 8:09 am EST	SCYNEXIS INCSCYX	22,500	—	—	22,500	—
Oct 1, 2018 AForm 4 →	Oct 3, 2:53 pm EDT	SCYNEXIS INCSCYX	21,595	$0.79	$17,060	21,595	—
Jul 2, 2018 AForm 4 →	Jul 3, 1:37 pm EDT	SCYNEXIS INCSCYX	15,589	$1.10	$17,148	15,589	—
Apr 2, 2018 AForm 4 →	Apr 4, 7:13 pm EDT	SCYNEXIS INCSCYX	19,959	$0.86	$17,165	19,959	—
Apr 2, 2018 AForm 4 →	Apr 4, 4:06 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	50,000	—	—	50,000	—
Jan 19, 2018 AForm 4 →	Jan 19, 7:44 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	400,000	—	—	300,000	—
Jan 2, 2018 AForm 4 →	Jan 4, 12:25 pm EST	SCYNEXIS INCSCYX	11,555	$1.48	$17,101	11,555	—
Jan 2, 2018 AForm 4 →	Jan 4, 12:23 pm EST	SCYNEXIS INCSCYX	19,989	—	—	19,989	—
Oct 2, 2017 AForm 4 →	Oct 4, 4:29 pm EDT	SCYNEXIS INCSCYX	10,709	—	—	10,709	—
Jul 3, 2017 AForm 4 →	Jul 5, 3:55 pm EDT	SCYNEXIS INCSCYX	14,396	—	—	14,396	—
Apr 3, 2017 AForm 4 →	Apr 4, 2:39 pm EDT	SCYNEXIS INCSCYX	9,941	—	—	9,941	—
Feb 9, 2017 MForm 4 →	Feb 13, 4:44 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	30,378	—	—	0	—
Jan 31, 2017 AForm 4 →	Feb 1, 6:13 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	375,000	—	—	300,000	—
Jan 3, 2017 AForm 4 →	Jan 5, 6:15 pm EST	SCYNEXIS INCSCYX	7,749	—	—	7,749	—
Jan 3, 2017 AForm 4 →	Jan 5, 6:15 pm EST	SCYNEXIS INCSCYX	14,499	—	—	14,499	—
Oct 3, 2016 AForm 4 →	Oct 4, 4:01 pm EDT	SCYNEXIS INCSCYX	6,255	—	—	6,255	—
Jul 1, 2016 AForm 4 →	Jul 11, 1:49 pm EDT	SCYNEXIS INCSCYX	12,996	—	—	12,996	—	late
Jun 24, 2016 PForm 4 →	Jun 28, 7:52 am EDT	SCYNEXIS INCSCYX	18,000	$0.02	$360	18,000	—
Jun 2, 2016 AForm 4 →	Jun 6, 1:21 pm EDT	SCYNEXIS INCSCYX	8,800	$3.98	$35,024	8,800	—
May 16, 2016 MForm 4 →	May 18, 5:37 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	25,323	—	—	20,000	—
Apr 1, 2016 AForm 4 →	Apr 5, 4:54 pm EDT	SCYNEXIS INCSCYX	7,027	—	—	7,027	—
Jan 6, 2016 AMForm 4 →	Jan 8, 6:36 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	312,000	—	—	45,323	—
Jan 4, 2016 AForm 4 →	Jan 6, 4:58 pm EST	SCYNEXIS INCSCYX	4,666	—	—	4,666	—
Oct 1, 2015 AForm 4 →	Oct 5, 6:22 pm EDT	SCYNEXIS INCSCYX	4,286	—	—	4,286	—
Sep 1, 2015 MForm 4 →	Sep 3, 5:17 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	—	—	180,000	—
Aug 24, 2015 MForm 4 →	Aug 25, 4:25 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	12,000	—	—	57,323	—
Aug 3, 2015 MForm 4 →	Aug 3, 8:32 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	—	—	190,000	—
Jul 1, 2015 AForm 4 →	Jul 6, 6:58 pm EDT	SCYNEXIS INCSCYX	2,974	—	—	2,974	—
Jul 1, 2015 MForm 4 →	Jul 2, 7:49 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	—	—	200,000	—
Jun 4, 2015 AForm 4 →	Jun 5, 5:17 pm EDT	SCYNEXIS INCSCYX	8,800	—	—	8,800	—
Jun 1, 2015 MForm 4 →	Jun 3, 6:35 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	30,000	—	—	69,323	—
May 11, 2015 MForm 4 →	May 13, 7:16 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	20,000	—	—	220,000	—
Apr 1, 2015 AForm 4 →	Apr 3, 8:42 pm EDT	SCYNEXIS INCSCYX	1,976	—	—	1,976	—
Mar 26, 2015 MForm 4 →	Mar 27, 4:10 pm EDT	TETRAPHASE PHARMACEUTICALS INCTTPH	20,000	—	—	89,323	—
Mar 2, 2015 MForm 4 →	Mar 4, 4:32 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	—	—	240,000	—
Feb 2, 2015 MForm 4 →	Feb 4, 4:34 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	10,000	—	—	250,000	—
Jan 20, 2015 MForm 4 →	Jan 22, 5:53 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	34,135	—	—	25,834	—
Jan 7, 2015 AForm 4 →	Jan 9, 4:47 pm EST	TETRAPHASE PHARMACEUTICALS INCTTPH	200,000	—	—	200,000	—
Jan 2, 2015 AForm 4 →	Jan 6, 12:17 pm EST	SCYNEXIS INCSCYX	1,738	—	—	1,738	—