Insider · CIK 0001193201

Stephen T Isaacs

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

Open-market buys & salesbuys $0 · 0sales $9.7M · 27net −$9.7M

Reported trades — common stock

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Dec 12, 2018 SForm 4 →	Dec 14, 4:17 pm EST	ADURO BIOTECH, INC.ADRO	5,829	$2.93	$17,091	327,024	−1.75%	plan?
Sep 13, 2018 SForm 4 →	Sep 14, 7:24 pm EDT	ADURO BIOTECH, INC.ADRO	24,143	$6.50	$156,913	332,853	−6.76%	plan?
Sep 12, 2018 AForm 4 →	Sep 14, 7:24 pm EDT	ADURO BIOTECH, INC.ADRO	151,250	—	—	356,996	—	plan?
Sep 5, 2018 SForm 4 →	Sep 6, 7:42 pm EDT	ADURO BIOTECH, INC.ADRO	62,572	$7.91	$495,158	205,746	−23.3%	plan?
Sep 5, 2018 MForm 4 →	Sep 6, 7:42 pm EDT	ADURO BIOTECH, INC.ADRO	62,572	$1.00	$62,572	252,733	—	plan?
Jun 1, 2018 SForm 4 →	Jun 5, 8:58 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$8.68	$347,004	205,746	−16.3%	plan?
Jun 1, 2018 MForm 4 →	Jun 5, 8:58 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$1.00	$40,000	245,746	—	plan?
May 9, 2018 SForm 4 →	May 11, 5:00 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$8.01	$320,348	205,746	−16.3%	plan?
May 9, 2018 MForm 4 →	May 11, 5:00 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$0.9744	$38,976	245,746	—	plan?
Apr 2, 2018 SForm 4 →	Apr 4, 6:26 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$8.91	$356,400	205,746	−16.3%	plan?
Apr 2, 2018 MForm 4 →	Apr 4, 6:26 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$0.82	$32,800	245,746	—	plan?
Mar 8, 2018 SForm 4 →	Mar 9, 7:40 pm EST	ADURO BIOTECH, INC.ADRO	72,051	$8.48	$611,058	205,746	−25.9%	plan?
Mar 8, 2018 MForm 4 →	Mar 9, 7:40 pm EST	ADURO BIOTECH, INC.ADRO	72,051	$0.4816	$34,700	252,163	—	plan?
Jan 5, 2018 SForm 4 →	Jan 9, 5:48 pm EST	ADURO BIOTECH, INC.ADRO	7,949	$7.95	$63,195	205,746	−3.72%	plan?
Jan 5, 2018 MForm 4 →	Jan 9, 5:48 pm EST	ADURO BIOTECH, INC.ADRO	7,949	$0.45	$3,577	213,695	—	plan?
Dec 15, 2017 GForm 4 →	Dec 15, 8:04 pm EST	ADURO BIOTECH, INC.ADRO	74,100	—	—	205,746	—	plan?
Dec 11, 2017 AForm 4 →	Dec 13, 8:21 pm EST	ADURO BIOTECH, INC.ADRO	44,200	—	—	218,121	—	plan?
Dec 1, 2017 SForm 4 →	Dec 4, 7:53 pm EST	ADURO BIOTECH, INC.ADRO	40,000	$9.38	$375,028	173,921	−18.7%	plan?
Dec 1, 2017 MForm 4 →	Dec 4, 7:53 pm EST	ADURO BIOTECH, INC.ADRO	40,000	$0.45	$18,000	213,921	—	plan?
Nov 10, 2017 SForm 4 →	Nov 14, 6:20 pm EST	ADURO BIOTECH, INC.ADRO	19,800	$7.97	$157,723	173,921	−10.2%	plan?
Nov 10, 2017 MForm 4 →	Nov 14, 6:20 pm EST	ADURO BIOTECH, INC.ADRO	19,800	$0.45	$8,910	177,321	—	plan?
Nov 6, 2017 SForm 4 →	Nov 8, 7:56 pm EST	ADURO BIOTECH, INC.ADRO	20,200	$7.98	$161,157	173,921	−10.4%	plan?
Nov 6, 2017 MForm 4 →	Nov 8, 7:56 pm EST	ADURO BIOTECH, INC.ADRO	20,200	$0.45	$9,090	177,721	—	plan?
Oct 2, 2017 SForm 4 →	Oct 4, 8:23 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$10.78	$431,032	173,921	−18.7%	plan?
Oct 2, 2017 MForm 4 →	Oct 4, 8:23 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$0.45	$18,000	213,921	—	plan?
Sep 13, 2017 SForm 4 →	Sep 14, 9:25 pm EDT	ADURO BIOTECH, INC.ADRO	12,204	$10.99	$134,071	173,921	−6.56%	plan?
Sep 12, 2017 AForm 4 →	Sep 14, 9:25 pm EDT	ADURO BIOTECH, INC.ADRO	82,100	—	—	186,125	—	plan?
Sep 1, 2017 SForm 4 →	Sep 6, 4:28 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$11.71	$468,596	104,025	−27.8%	plan?
Sep 1, 2017 MForm 4 →	Sep 6, 4:28 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$0.45	$18,000	144,025	—	plan?
Aug 7, 2017 SForm 4 →	Aug 9, 7:46 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$12.19	$487,564	104,025	−27.8%	plan?
Aug 7, 2017 MForm 4 →	Aug 9, 7:46 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$0.45	$18,000	144,025	—	plan?
Jul 3, 2017 SForm 4 →	Jul 6, 7:12 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$11.06	$442,397	104,025	−27.8%	plan?
Jul 3, 2017 MForm 4 →	Jul 6, 7:12 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$0.4991	$19,965	144,025	—	plan?
Jun 19, 2017 SForm 4 →	Jun 21, 6:56 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$10.50	$420,164	104,025	−27.8%	plan?
Jun 19, 2017 MForm 4 →	Jun 21, 6:56 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	$0.52	$20,800	144,025	—	plan?
May 15, 2017 SForm 4 →	May 17, 5:55 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	$10.01	$272,950	104,025	−20.8%	plan?
May 15, 2017 MForm 4 →	May 17, 5:55 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	$0.52	$14,182	120,698	—	plan?
Apr 3, 2017 SForm 4 →	Apr 4, 8:17 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	$10.28	$280,429	102,200	−21.1%	plan?
Apr 3, 2017 MForm 4 →	Apr 4, 8:17 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	$0.52	$14,182	129,473	—	plan?
Mar 13, 2017 SForm 4 →	Mar 14, 8:02 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	$11.35	$309,434	102,200	−21.1%	plan?
Mar 13, 2017 MForm 4 →	Mar 14, 8:02 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	$0.52	$14,182	129,473	—	plan?
Jan 3, 2017 SForm 4 →	Jan 5, 5:14 pm EST	ADURO BIOTECH, INC.ADRO	27,273	$11.12	$303,289	102,200	−21.1%	plan?
Jan 3, 2017 MForm 4 →	Jan 5, 5:14 pm EST	ADURO BIOTECH, INC.ADRO	27,273	$0.52	$14,182	129,473	—	plan?
Dec 15, 2016 GForm 4 →	Dec 16, 7:09 pm EST	ADURO BIOTECH, INC.ADRO	51,000	—	—	70,657	—	plan?
Dec 1, 2016 SForm 4 →	Dec 5, 7:23 pm EST	ADURO BIOTECH, INC.ADRO	27,273	$10.82	$295,169	102,200	−21.1%	plan?
Dec 1, 2016 MForm 4 →	Dec 5, 7:23 pm EST	ADURO BIOTECH, INC.ADRO	27,273	$0.52	$14,182	129,473	—	plan?
Nov 14, 2016 SForm 4 →	Nov 16, 5:06 pm EST	ADURO BIOTECH, INC.ADRO	27,273	$15.26	$416,050	102,200	−21.1%	plan?
Nov 14, 2016 MForm 4 →	Nov 16, 5:06 pm EST	ADURO BIOTECH, INC.ADRO	27,273	$0.52	$14,182	129,473	—	plan?
Oct 3, 2016 SForm 4 →	Oct 5, 5:22 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	$12.67	$345,522	102,200	−21.1%	plan?
Oct 3, 2016 MForm 4 →	Oct 5, 5:22 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	$0.52	$14,182	129,473	—	plan?
Sep 12, 2016 AForm 4 →	Sep 14, 4:16 pm EDT	ADURO BIOTECH, INC.ADRO	92,200	—	—	102,200	—	plan?
Jan 4, 2016 SForm 4 →	Jan 6, 6:16 pm EST	ADURO BIOTECH, INC.ADRO	25,000	$26.31	$657,799	10,000	−71.4%	plan?
Jan 4, 2016 MForm 4 →	Jan 6, 6:16 pm EST	ADURO BIOTECH, INC.ADRO	25,000	$0.52	$13,000	22,500	—	plan?
Dec 31, 2015 MForm 4 →	Jan 4, 2016, 7:04 pm EST	ADURO BIOTECH, INC.ADRO	10,000	$0.45	$4,500	10,000	—	plan?
Dec 15, 2015 GForm 5 →	Feb 3, 2016, 5:59 pm EST	ADURO BIOTECH, INC.ADRO	34,500	—	—	121,657	—	plan?
Dec 1, 2015 SForm 4 →	Dec 2, 6:26 pm EST	ADURO BIOTECH, INC.ADRO	25,000	$29.11	$727,664	0	−100%	plan?
Dec 1, 2015 MForm 4 →	Dec 2, 6:26 pm EST	ADURO BIOTECH, INC.ADRO	25,000	$0.52	$13,000	25,000	—	plan?
Nov 16, 2015 SForm 4 →	Nov 18, 8:27 pm EST	ADURO BIOTECH, INC.ADRO	25,000	$27.54	$688,490	0	−100%	plan?
Nov 16, 2015 MForm 4 →	Nov 18, 8:27 pm EST	ADURO BIOTECH, INC.ADRO	25,000	$0.52	$13,000	25,000	—	plan?
Jul 24, 2015 XForm 4 →	Jul 27, 6:51 pm EDT	ADURO BIOTECH, INC.ADRO	11,916	$0.0511	$609	154,687	—	plan?
Apr 20, 2015 CForm 4 →	Apr 22, 5:38 pm EDT	ADURO BIOTECH, INC.ADRO	142,697	—	—	142,771	—	plan?

Reported trades — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake
Feb 19, 2019 AForm 4 →	Feb 21, 4:39 pm EST	ADURO BIOTECH, INC.ADRO	900,000	—	—	900,000	—
Sep 5, 2018 MForm 4 →	Sep 6, 7:42 pm EDT	ADURO BIOTECH, INC.ADRO	62,572	—	—	763,907	—
Jun 1, 2018 MForm 4 →	Jun 5, 8:58 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	—	—	826,479	—
May 9, 2018 MForm 4 →	May 11, 5:00 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	—	—	866,479	—
Apr 2, 2018 MForm 4 →	Apr 4, 6:26 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	—	—	5,688	—
Mar 8, 2018 MForm 4 →	Mar 9, 7:40 pm EST	ADURO BIOTECH, INC.ADRO	72,051	—	—	45,688	—
Feb 8, 2018 AForm 4 →	Feb 12, 8:23 pm EST	ADURO BIOTECH, INC.ADRO	376,250	—	—	376,250	—
Jan 5, 2018 MForm 4 →	Jan 9, 5:48 pm EST	ADURO BIOTECH, INC.ADRO	7,949	—	—	41,310	—
Dec 1, 2017 MForm 4 →	Dec 4, 7:53 pm EST	ADURO BIOTECH, INC.ADRO	40,000	—	—	49,259	—
Nov 10, 2017 MForm 4 →	Nov 14, 6:20 pm EST	ADURO BIOTECH, INC.ADRO	19,800	—	—	89,259	—
Nov 6, 2017 MForm 4 →	Nov 8, 7:56 pm EST	ADURO BIOTECH, INC.ADRO	20,200	—	—	109,059	—
Oct 2, 2017 MForm 4 →	Oct 4, 8:23 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	—	—	129,259	—
Sep 1, 2017 MForm 4 →	Sep 6, 4:28 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	—	—	169,259	—
Aug 7, 2017 MForm 4 →	Aug 9, 7:46 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	—	—	209,259	—
Jul 3, 2017 MForm 4 →	Jul 6, 7:12 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	—	—	249,259	—
Jun 19, 2017 MForm 4 →	Jun 21, 6:56 pm EDT	ADURO BIOTECH, INC.ADRO	40,000	—	—	430,804	—
Jun 12, 2017 AForm 4 →	Jun 14, 9:11 pm EDT	ADURO BIOTECH, INC.ADRO	88,400	—	—	88,400	—
May 15, 2017 MForm 4 →	May 17, 5:55 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	—	—	142,438	—
Apr 3, 2017 MForm 4 →	Apr 4, 8:17 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	—	—	169,711	—
Mar 13, 2017 MForm 4 →	Mar 14, 8:02 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	—	—	196,984	—
Jan 3, 2017 MForm 4 →	Jan 5, 5:14 pm EST	ADURO BIOTECH, INC.ADRO	27,273	—	—	138,825	—
Dec 12, 2016 AForm 4 →	Dec 14, 9:06 pm EST	ADURO BIOTECH, INC.ADRO	69,100	—	—	69,100	—
Dec 1, 2016 MForm 4 →	Dec 5, 7:23 pm EST	ADURO BIOTECH, INC.ADRO	27,273	—	—	148,402	—
Nov 14, 2016 MForm 4 →	Nov 16, 5:06 pm EST	ADURO BIOTECH, INC.ADRO	27,273	—	—	175,675	—
Oct 3, 2016 MForm 4 →	Oct 5, 5:22 pm EDT	ADURO BIOTECH, INC.ADRO	27,273	—	—	202,948	—
Jun 10, 2016 AForm 4 →	Jun 10, 8:25 pm EDT	ADURO BIOTECH, INC.ADRO	70,700	—	—	70,700	—
Jan 4, 2016 MForm 4 →	Jan 6, 6:16 pm EST	ADURO BIOTECH, INC.ADRO	25,000	—	—	230,221	—
Dec 31, 2015 MForm 4 →	Jan 4, 2016, 7:04 pm EST	ADURO BIOTECH, INC.ADRO	10,000	—	—	26,532	—
Dec 10, 2015 AForm 4 →	Dec 14, 6:50 pm EST	ADURO BIOTECH, INC.ADRO	37,250	—	—	37,250	—
Dec 1, 2015 MForm 4 →	Dec 2, 6:26 pm EST	ADURO BIOTECH, INC.ADRO	25,000	—	—	255,221	—
Nov 16, 2015 MForm 4 →	Nov 18, 8:27 pm EST	ADURO BIOTECH, INC.ADRO	25,000	—	—	280,221	—
Jul 24, 2015 XForm 4 →	Jul 27, 6:51 pm EDT	ADURO BIOTECH, INC.ADRO	11,916	—	—	0	—
Apr 20, 2015 ACDForm 4 →	Apr 22, 5:38 pm EDT	ADURO BIOTECH, INC.ADRO	143,572	—	—	366	—