Filed with the SEC as TANG KEVIN; the order above is the one the filer's own signature uses.
In the 12 months to Nov 8, 2026, on the open market: bought $3.5M of BOLD, FULC; sold $54K of BOLD. Filed a median of 1 business day after the trade.
Open-market purchases and sales this filer reported on SEC Form 4, by the day traded. Insiders have two business days to file. A sale marked 10b5-1 was made under a plan adopted in advance. How to read these
Insider purchases above the line: $3.5MInsider sales below: $54K
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.
BOLDBought: Boundless Bio, Inc. Nov 5, 20268,390 sharesfiled Nov 5, 20263,033,618 shares held indirectly after, as filedfiling$20K
BOLDBought: Boundless Bio, Inc. Nov 4, 2026517 sharesfiled Nov 5, 20263,025,228 shares held indirectly after, as filedfiling$1K
BOLDBought: Boundless Bio, Inc. Nov 3, 20262,255 sharesfiled Nov 5, 20263,024,711 shares held indirectly after, as filedfiling$5K
BOLDBought: Boundless Bio, Inc. Oct 27, 202610,707 sharesfiled Oct 29, 20263,022,456 shares held indirectly after, as filedfiling$26K
BOLDBought: Boundless Bio, Inc. Oct 26, 20269,606 sharesfiled Oct 26, 20263,011,749 shares held indirectly after, as filedfiling$23K
BOLDBought: Boundless Bio, Inc. Oct 23, 20266,234 sharesfiled Oct 26, 20263,002,143 shares held indirectly after, as filedfiling$15K
BOLDBought: Boundless Bio, Inc. Oct 22, 20265,800 sharesfiled Oct 26, 20262,995,909 shares held indirectly after, as filedfiling$14K
BOLDBought: Boundless Bio, Inc. Oct 20, 2026220 sharesfiled Oct 20, 20262,990,109 shares held indirectly after, as filedfiling$521
BOLDBought: Boundless Bio, Inc. Oct 19, 202631,069 sharesfiled Oct 20, 20262 transactionsfiling$73K
BOLDBought: Boundless Bio, Inc. Oct 16, 2026118,185 sharesfiled Oct 20, 20262,958,820 shares held indirectly after, as filedfiling$277K
BOLDSold: Boundless Bio, Inc. Aug 26, 202618,300 sharesfiled Aug 28, 20262,840,635 shares held indirectly after, as filedfiling$54K
BOLDBought: Boundless Bio, Inc. Jul 21, 20262,975 sharesfiled Jul 21, 20262,858,935 shares held indirectly after, as filedfiling$7K
BOLDBought: Boundless Bio, Inc. Jul 20, 20261,623 sharesfiled Jul 21, 20262,855,960 shares held indirectly after, as filedfiling$4K
FULCBought: Fulcrum Therapeutics, Inc. Jul 17, 202650,945 sharesfiled Jul 20, 20267,080,945 shares held indirectly after, as filedfiling$179K
BOLDBought: Boundless Bio, Inc. Jul 17, 2026265 sharesfiled Jul 21, 20262,854,337 shares held indirectly after, as filedfiling$647
FULCBought: Fulcrum Therapeutics, Inc. Jul 16, 2026116,671 sharesfiled Jul 20, 20267,030,000 shares held indirectly after, as filedfiling$415K
BOLDBought: Boundless Bio, Inc. Jul 16, 202618,491 sharesfiled Jul 16, 20262,854,072 shares held indirectly after, as filedfiling$45K
FULCBought: Fulcrum Therapeutics, Inc. Jul 15, 2026107,377 sharesfiled Jul 15, 20266,913,329 shares held indirectly after, as filedfiling$382K
BOLDBought: Boundless Bio, Inc. Jul 15, 20261,600 sharesfiled Jul 16, 20262,835,581 shares held indirectly after, as filedfiling$4K
BOLDBought: Boundless Bio, Inc. Jul 14, 202643,878 sharesfiled Jul 16, 20262,833,981 shares held indirectly after, as filedfiling$107K
BOLDBought: Boundless Bio, Inc. Jul 13, 202648,211 sharesfiled Jul 13, 20262,790,103 shares held indirectly after, as filedfiling$117K
FULCBought: Fulcrum Therapeutics, Inc. Jul 13, 202612,966 sharesfiled Jul 15, 20266,676,349 shares held indirectly after, as filedfiling$46K
BOLDBought: Boundless Bio, Inc. Jul 10, 202643,367 sharesfiled Jul 13, 20262,741,892 shares held indirectly after, as filedfiling$105K
BOLDBought: Boundless Bio, Inc. Jul 9, 20267 sharesfiled Jul 13, 20262,698,525 shares held indirectly after, as filedfiling$17
BOLDBought: Boundless Bio, Inc. Jul 8, 202614,338 sharesfiled Jul 8, 20262,698,518 shares held indirectly after, as filedfiling$35K
BOLDBought: Boundless Bio, Inc. Jul 7, 202615,810 sharesfiled Jul 8, 20262,684,180 shares held indirectly after, as filedfiling$39K
BOLDBought: Boundless Bio, Inc. Jul 6, 202627,062 sharesfiled Jul 8, 20262,668,370 shares held indirectly after, as filedfiling$67K
BOLDBought: Boundless Bio, Inc. Jul 2, 20269,821 sharesfiled Jul 2, 20262,641,308 shares held indirectly after, as filedfiling$24K
BOLDBought: Boundless Bio, Inc. Jul 1, 202671,612 sharesfiled Jul 2, 20262,631,487 shares held indirectly after, as filedfiling$178K
BOLDBought: Boundless Bio, Inc. Jun 30, 202626,030 sharesfiled Jul 2, 20262 transactionsfiling$66K
BOLDBought: Boundless Bio, Inc. Jun 29, 202664,762 sharesfiled Jun 29, 20262 transactionsfiling$160K
BOLDBought: Boundless Bio, Inc. Jun 26, 202675,181 sharesfiled Jun 29, 20262 transactionsfiling$192K
BOLDBought: Boundless Bio, Inc. Jun 25, 2026146,390 sharesfiled Jun 29, 20262 transactionsfiling$363K
Source: SEC Form 4 filings. Value is shares × the price reported on the filing; a filing whose price failed Lytir's check against the market price is left out, and a trade that related owners reported on separate forms is counted once. Filings can be late, amended or wrong at the source; see methodology.
