Boundless Bio, Inc. (BOLD) Insider Trading Activity

NASDAQ$2.42+0.04 (1.68%)
Market Cap
$54.14M
Sector
Healthcare
Industry
Biotechnology
Rank in Sector
101 of 849
Rank in Industry
62 of 491

Largest Insider Buys in Sector

$350M
$217M
$172M
$109M
$107M
$104M

BOLD Insider Trading Activity

BOLD Median Price and Trade Amounts History Chart

Statistics of Insider Transactions

Amount of Insider Buys and Sells

Buys
$1,942,003
25
89
Sells
$134,031
3
11

Related Transactions

TANG KEVIN10 percent owner
25
$1.94M
1
$54,351
$1.89M
ARCH Venture Fund IX, L.P.10 percent owner
0
$0
1
$39,840
$-39,840
CRANDELL KEITH10 percent owner
0
$0
1
$39,840
$-39,840

About Boundless Bio, Inc.

Boundless Bio, Inc., a clinical-stage oncology company, focuses on developing innovative cancer therapies aimed at addressing the significant unmet needs of patients with oncogene amplified tumors. Their core strategy involves targeting extrachromosomal DNA (ecDNA). The company's lead product candidate, BBI-355, an orally administered inhibitor of checkpoint kinase 1 (CHK1), is currently in Phase 1/2 clinical trials for patients suffering from oncogene amplified cancers. Additionally, Boundless Bio is advancing BBI-825, another oral inhibitor, …

Insider Activity of Boundless Bio, Inc.

Over the last 12 months, insiders at Boundless Bio, Inc. have bought $1.94M and sold $134,031 worth of Boundless Bio, Inc. stock.

On average, over the past 5 years, insiders at Boundless Bio, Inc. have bought $1.94M and sold $134,031 worth of stock each year.

Highest buying activity among insiders over the last 12 months: TANG KEVIN (10 percent owner) — $1.94M.

The last purchase of 10,707 shares for transaction amount of $25,697 was made by TANG KEVIN (10 percent owner) on 2026‑10‑27.

List of Insider Buy and Sell Transactions, Boundless Bio, Inc.

2026-10-27PurchaseTANG KEVIN10 percent owner
10,707
0.0469%
$2.40
$25,697
+2.49%
2026-10-26PurchaseTANG KEVIN10 percent owner
9,606
0.0423%
$2.38
$22,862
+1.87%
2026-10-23PurchaseTANG KEVIN10 percent owner
6,234
0.028%
$2.38
$14,837
+3.39%
2026-10-22PurchaseTANG KEVIN10 percent owner
5,800
0.0254%
$2.40
$13,920
-0.61%
2026-10-20PurchaseTANG KEVIN10 percent owner
220
0.0009%
$2.37
$521
+0.41%
2026-10-19PurchaseTANG KEVIN10 percent owner
31,069
0.138%
$2.33
$72,519
+5.63%
2026-10-16PurchaseTANG KEVIN10 percent owner
118,185
0.5195%
$2.34
$276,553
+4.06%
2026-08-26SaleTANG KEVIN10 percent owner
18,300
0.083%
$2.97
$54,351
-10.96%
2026-07-21PurchaseTANG KEVIN10 percent owner
2,975
0.0132%
$2.44
$7,259
+6.85%
2026-07-20PurchaseTANG KEVIN10 percent owner
1,623
0.0072%
$2.44
$3,960
+8.20%
2026-07-17PurchaseTANG KEVIN10 percent owner
265
0.0012%
$2.44
$647
+6.05%
2026-07-16PurchaseTANG KEVIN10 percent owner
18,491
0.0813%
$2.44
$45,118
+5.22%
2026-07-15PurchaseTANG KEVIN10 percent owner
1,600
0.007%
$2.44
$3,904
+5.87%
2026-07-14PurchaseTANG KEVIN10 percent owner
43,878
0.1929%
$2.43
$106,624
+6.10%
2026-07-13PurchaseTANG KEVIN10 percent owner
48,211
0.2154%
$2.42
$116,671
+6.76%
2026-07-10PurchaseTANG KEVIN10 percent owner
43,367
0.1946%
$2.43
$105,382
+7.88%
2026-07-09PurchaseTANG KEVIN10 percent owner
7
<0.0001%
$2.48
$17
+3.59%
2026-07-08PurchaseTANG KEVIN10 percent owner
14,338
0.0628%
$2.46
$35,271
+6.12%
2026-07-07PurchaseTANG KEVIN10 percent owner
15,810
0.0698%
$2.48
$39,209
+3.80%
2026-07-06PurchaseTANG KEVIN10 percent owner
27,062
0.1199%
$2.49
$67,384
+3.60%
Total: 56
*Gray background shows transactions not older than one year

BOLD Institutional Investors: Active Positions

Increased Positions16+41.03%1M+12.9%
Decreased Positions14-35.9%2M-21.63%
New Positions6New239,990New
Sold Out Positions5Sold Out2MSold Out
Total Postitions41+5.13%9M-8.73%

BOLD Ownership Change vs Market

Institutional Investor Ownership

Top Shareholders
Top Buyers
Top Sellers
New Shareholders
Sold-Out Shareholders
Active Shareholders

Financial Ratios

Summary
Comparison with Competitors

Price to Earnings

Price/Earnings to Growth

Price to Sales

Price to Book

Price/Free Cash Flow

Analyst Recommendations

Analyst Price Targets

No data is available at this moment.
Company
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