BOLD Institutional Ownership & Shareholders
BOUNDLESS BIO INC (BOLD) is currently held by 40 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $38.61M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Arch Venture Management, Llc is currently the largest disclosed institutional shareholder of BOLD tracked by InsiderSet, reporting ownership valued at approximately $6.74M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $6.57M, representing an estimated loss of -2.40% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 86% of the total disclosed BOLD value among the investors covered in this analysis. Major shareholders include Arch Venture Management, Llc, Fmr Llc, Tang Capital Management Llc, and several other long-term asset managers with concentrated positions in BOUNDLESS BIO INC (BOLD).
This page ranks the largest institutional BOLD shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
40
Total Reported Value
$38.61M
Largest Holder
Arch Venture Management, Llc
Largest Position
$6.74M
Insider Transactions (90d)
9
Latest Filing Quarter
Q2 2026
New Institutional Positions
53
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Arch Venture Management, Llc | 0.61% | 2,694,095 | $6,735,238 | $6,573,592 | -$161,646 | -2.40% | |
| Fmr Llc | 0.00% | 2,581,055 | $6,452,638 | $6,297,774 | -$154,864 | -2.40% | |
| Tang Capital Management Llc | 0.29% | 2,559,875 | $6,399,688 | $6,246,095 | -$153,593 | -2.40% | |
| Adar1 Capital Management, Llc | 0.23% | 1,968,216 | $4,920,540 | $4,802,447 | -$118,093 | -2.40% | |
| Cormorant Asset Management, Lp | 0.13% | 1,000,000 | $2,500,000 | $2,440,000 | -$60,000 | -2.40% | |
| Vanguard Capital Management Llc | 0.00% | 614,923 | $1,537,308 | $1,500,412 | -$36,896 | -2.40% | |
| Wellington Management Group Llp | 0.00% | 556,233 | $1,390,583 | $1,357,209 | -$33,374 | -2.40% | |
| Millennium Management Llc | 0.00% | 478,639 | $1,196,598 | $1,167,879 | -$28,719 | -2.40% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 471,570 | $1,178,925 | $1,150,631 | -$28,294 | -2.40% |
| Alyeska Investment Group, L.P. | 0.00% | 300,000 | $750,000 | $732,000 | -$18,000 | -2.40% | |
| Affinity Asset Advisors, Llc | 0.03% | 250,000 | $625,000 | $610,000 | -$15,000 | -2.40% | |
| China Universal Asset Management Co., Ltd. | 0.03% | 233,300 | $597,248 | $569,252 | -$27,996 | -4.69% | |
| Rbf Capital, Llc | 0.02% | 200,000 | $500,000 | $488,000 | -$12,000 | -2.40% | |
| Stonepine Capital Management, Llc | 0.29% | 154,595 | $386,488 | $377,212 | -$9,276 | -2.40% | |
| Acadian Asset Management Llc | 0.00% | 146,757 | $365,000 | $358,087 | -$6,913 | -1.89% | |
| Citadel Advisors Llc | 0.00% | 145,049 | $362,623 | $353,920 | -$8,703 | -2.40% | |
| Bridgeway Capital Management, Llc | 0.01% | 128,000 | $320,000 | $312,320 | -$7,680 | -2.40% | |
| Geode Capital Management, Llc | 0.00% | 116,736 | $291,839 | $284,836 | -$7,003 | -2.40% | |
| Hrt Financial Lp | 0.00% | 116,288 | $290,000 | $283,743 | -$6,257 | -2.16% | |
| Blackrock, Inc. | 0.00% | 88,495 | $221,239 | $215,928 | -$5,311 | -2.40% | |
| Prelude Capital Management, Llc | 0.02% | 83,998 | $209,995 | $204,955 | -$5,040 | -2.40% | |
| Ensign Peak Advisors, Inc | 0.00% | 187,500 | $206,250 | $457,500 | +$251,250 | +121.82% | |
| Rangeley Capital, Llc | 0.17% | 74,000 | $185,000 | $180,560 | -$4,440 | -2.40% | |
| Gsa Capital Partners Llp | 0.01% | 72,353 | $181,000 | $176,541 | -$4,459 | -2.46% | |
| Vanguard Fiduciary Trust Co | 0.00% | 65,136 | $162,840 | $158,932 | -$3,908 | -2.40% | |
| Jane Street Group, Llc | 0.00% | 64,323 | $160,807 | $156,948 | -$3,859 | -2.40% | |
| Superstring Capital Management Lp | 0.09% | 55,356 | $138,390 | $135,069 | -$3,321 | -2.40% | |
| Northern Trust Corp | 0.00% | 34,824 | $87,060 | $84,971 | -$2,089 | -2.40% | |
| Xtx Topco Ltd | 0.00% | 33,361 | $83,403 | $81,401 | -$2,002 | -2.40% | |
| Qube Research & Technologies Ltd | 0.00% | 20,207 | $50,518 | $49,305 | -$1,213 | -2.40% | |
| State Street Corp | 0.00% | 15,962 | $39,905 | $38,947 | -$958 | -2.40% | |
| Morgan Stanley | 0.00% | 13,000 | $32,500 | $31,720 | -$780 | -2.40% | |
| Pure Financial Advisors, Llc | 0.00% | 10,100 | $25,250 | $24,644 | -$606 | -2.40% | |
| Caitong International Asset Management Co., Ltd | 0.00% | 8,170 | $20,507 | $19,935 | -$572 | -2.79% | |
| Tower Research Capital Llc (Trc) | 0.00% | 348 | $870 | $849 | -$21 | -2.40% | |
| Bnp Paribas Financial Markets | 0.00% | 176 | $440 | $429 | -$11 | -2.40% | |
| Jpmorgan Chase & Co | 0.00% | 179 | $439 | $437 | -$2 | -0.51% | |
| Cwm, Llc | 0.00% | 8 | $9 | $20 | +$11 | +116.89% | |
| Sbi Securities Co., Ltd. | 0.00% | 2 | $5 | $5 | -$0 | -2.40% | |
| Ubs Group Ag | 0.00% | 2 | $5 | $5 | -$0 | -2.40% |
Frequently asked questions about BOLD
Who are the largest institutional holders of BOLD?
The largest institutional holders of BOLD reported in the latest SEC Form 13F filings include Arch Venture Management, Llc, Fmr Llc, Tang Capital Management Llc, Adar1 Capital Management, Llc, and Cormorant Asset Management, Lp. InsiderSet ranks institutional holders by their latest reported BOLD position.
What is BOLD institutional ownership?
This page tracks BOLD positions reported by institutional investment managers through SEC Form 13F. BOUNDLESS BIO INC (BOLD) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own BOLD?
InsiderSet currently tracks 40 institutional managers reporting BOLD holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of BOLD shareholders.
How much BOLD stock do institutions own?
Institutional investment managers disclosed approximately $38.61M in BOLD holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was BOLD institutional ownership last updated?
The latest BOLD institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional BOLD holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its BOLD position after the reporting date.
Are institutions buying or selling BOLD?
Institutional buying and selling can be analyzed by comparing BOLD positions across consecutive 13F reporting periods. InsiderSet's BOLD Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View BOLD ownership changes.
How has BOLD institutional ownership changed over time?
InsiderSet tracks BOLD institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.