TANG KEVIN

Executive buyer

10% Owner · Boundless Bio, Inc.

Every open-market stock purchase TANG KEVIN has reported to the SEC on Form 4 that met our signal bar, parsed straight from the filings. This page tracks where how the prices paid compare to where the stock trades now.

Total bought

$65.6M

Open-market buys

Companies

Last buy

Nov 5, 2026

Where the buys stand today

AUPH
Aurinia Pharmaceuticals Inc.
20 purchases totalling $62.2M at an average of $10.71 per share. See all insider buying in AUPH →
Avg price paid
$10.71
Latest price
—
Market cap
Unknown
BOLD
Boundless Bio, Inc.
27 purchases totalling $1.9M at an average of $2.44 per share. See all insider buying in BOLD →
Avg price paid
$2.44
Latest price
—
Market cap
Unknown
FULC
Fulcrum Therapeutics, Inc.
6 purchases totalling $1.5M at an average of $3.56 per share. See all insider buying in FULC →
Avg price paid
$3.56
Latest price
—
Market cap
Unknown

All reported buys

Date	Ticker	Shares	Price	Value	Filing
Nov 5, 2026	BOLD	8,390	$2.40	$20.1K	SEC ↗
Nov 4, 2026	BOLD	517	$2.40	$1.2K	SEC ↗
Nov 3, 2026	BOLD	2,255	$2.40	$5.4K	SEC ↗
Oct 27, 2026	BOLD	10,707	$2.40	$25.7K	SEC ↗
Oct 26, 2026	BOLD	9,606	$2.38	$22.9K	SEC ↗
Oct 23, 2026	BOLD	6,234	$2.38	$14.8K	SEC ↗
Oct 22, 2026	BOLD	5,800	$2.40	$13.9K	SEC ↗
Oct 20, 2026	BOLD	220	$2.37	$521.4	SEC ↗
Oct 19, 2026	BOLD	18,279	$2.33	$42.6K	SEC ↗
Oct 19, 2026	BOLD	12,790	$2.34	$29.9K	SEC ↗
Oct 16, 2026	BOLD	118,185	$2.34	$276.6K	SEC ↗
Jul 21, 2026	BOLD	2,975	$2.44	$7.3K	SEC ↗
Jul 20, 2026	BOLD	1,623	$2.44	$4.0K	SEC ↗
Jul 17, 2026	BOLD	265	$2.44	$646.6	SEC ↗
Jul 17, 2026	FULC	50,945	$3.52	$179.3K	SEC ↗
Jul 16, 2026	FULC	116,671	$3.56	$415.3K	SEC ↗
Jul 16, 2026	BOLD	18,491	$2.44	$45.1K	SEC ↗
Jul 15, 2026	BOLD	1,600	$2.44	$3.9K	SEC ↗
Jul 15, 2026	FULC	107,377	$3.56	$382.3K	SEC ↗
Jul 14, 2026	BOLD	43,878	$2.43	$106.6K	SEC ↗
Jul 14, 2026	FULC	75,952	$3.58	$271.9K	SEC ↗
Jul 14, 2026	FULC	53,651	$3.56	$191.0K	SEC ↗
Jul 13, 2026	FULC	12,966	$3.54	$45.9K	SEC ↗
Jul 13, 2026	BOLD	48,211	$2.42	$116.7K	SEC ↗
Jul 10, 2026	BOLD	43,367	$2.43	$105.4K	SEC ↗
Jul 9, 2026	BOLD	7	$2.48	$17.4	SEC ↗
Jul 8, 2026	BOLD	14,338	$2.46	$35.3K	SEC ↗
Jul 7, 2026	BOLD	15,810	$2.48	$39.2K	SEC ↗
Jul 6, 2026	BOLD	27,062	$2.49	$67.4K	SEC ↗
Jul 1, 2026	BOLD	71,612	$2.49	$178.3K	SEC ↗
Jun 29, 2026	BOLD	63,985	$2.47	$158.0K	SEC ↗
Jun 26, 2026	BOLD	75,047	$2.55	$191.4K	SEC ↗
Jun 25, 2026	BOLD	145,880	$2.48	$361.8K	SEC ↗
Jun 2, 2026	AUPH	206,005	$15.28	$3.1M	SEC ↗
Jun 1, 2026	AUPH	343,521	$15.28	$5.2M	SEC ↗
May 29, 2026	AUPH	262,682	$15.31	$4.0M	SEC ↗
Mar 3, 2026	AUPH	184,208	$14.22	$2.6M	SEC ↗
Mar 2, 2026	AUPH	115,792	$14.21	$1.6M	SEC ↗
Mar 2, 2026	AUPH	83,561	$14.33	$1.2M	SEC ↗
Feb 27, 2026	AUPH	300,000	$13.90	$4.2M	SEC ↗
Feb 27, 2026	AUPH	214,839	$14.12	$3.0M	SEC ↗
Aug 5, 2025	AUPH	200,000	$11.68	$2.3M	SEC ↗
Aug 4, 2025	AUPH	100,000	$11.34	$1.1M	SEC ↗
Aug 1, 2025	AUPH	1,000,000	$10.12	$10.1M	SEC ↗
Mar 4, 2025	AUPH	148,038	$8.00	$1.2M	SEC ↗
Mar 4, 2025	AUPH	500,000	$7.92	$4.0M	SEC ↗
Mar 4, 2025	AUPH	100,000	$8.09	$809.0K	SEC ↗
Mar 3, 2025	AUPH	100,720	$7.97	$802.7K	SEC ↗
Mar 3, 2025	AUPH	351,962	$8.02	$2.8M	SEC ↗
Feb 28, 2025	AUPH	399,280	$7.85	$3.1M	SEC ↗
Dec 9, 2024	AUPH	500,000	$9.09	$4.5M	SEC ↗
Dec 6, 2024	AUPH	400,000	$9.01	$3.6M	SEC ↗
Dec 5, 2024	AUPH	300,000	$8.91	$2.7M	SEC ↗

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About this data

Figures are parsed from TANG KEVIN's Form 4 filings on SEC EDGAR (CIK 1178579) and cover open-market purchases (transaction code P) — grants, option exercises, and sales are excluded, which is why totals here can differ from raw filing counts. Every row links to its source document.

This page is informational and reflects public filing data. It is not investment advice.