BOUNDLESS BIO INC (BOLD) Institutional Shareholders
BOUNDLESS BIO INC (BOLD) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $38.25M in BOLD holdings during the latest filing period.
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 $7.71M, representing an estimated gain of +14.40% 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
42
Total Reported Value
$38.25M
Largest Holder
Arch Venture Management, Llc
Largest Position
$6.74M
Insider Transactions (90d)
25
Latest Filing Quarter
Q2 2026
New Institutional Positions
54
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 | $7,705,112 | +$969,874 | +14.40% | |
| Fmr Llc | 0.00% | 2,581,055 | $6,452,638 | $7,381,817 | +$929,179 | +14.40% | |
| Tang Capital Management Llc | 0.29% | 2,559,875 | $6,399,688 | $7,321,243 | +$921,555 | +14.40% | |
| Adar1 Capital Management, Llc | 0.23% | 1,968,216 | $4,920,540 | $5,629,098 | +$708,558 | +14.40% | |
| Cormorant Asset Management, Lp | 0.13% | 1,000,000 | $2,500,000 | $2,860,000 | +$360,000 | +14.40% | |
| Vanguard Capital Management Llc | 0.00% | 614,923 | $1,537,308 | $1,758,680 | +$221,372 | +14.40% | |
| Wellington Management Group Llp | 0.00% | 556,233 | $1,390,583 | $1,590,826 | +$200,243 | +14.40% | |
| Millennium Management Llc | 0.00% | 478,639 | $1,196,598 | $1,368,908 | +$172,310 | +14.40% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 471,570 | $1,178,925 | $1,348,690 | +$169,765 | +14.40% |
| Alyeska Investment Group, L.P. | 0.00% | 300,000 | $750,000 | $858,000 | +$108,000 | +14.40% | |
| Affinity Asset Advisors, Llc | 0.03% | 250,000 | $625,000 | $715,000 | +$90,000 | +14.40% | |
| Rbf Capital, Llc | 0.02% | 200,000 | $500,000 | $572,000 | +$72,000 | +14.40% | |
| Ensign Peak Advisors, Inc | 0.00% | 159,835 | $399,588 | $457,128 | +$57,540 | +14.40% | |
| Stonepine Capital Management, Llc | 0.23% | 154,595 | $386,488 | $442,142 | +$55,654 | +14.40% | |
| Acadian Asset Management Llc | 0.00% | 146,757 | $365,000 | $419,725 | +$54,725 | +14.99% | |
| Citadel Advisors Llc | 0.00% | 145,049 | $362,623 | $414,840 | +$52,217 | +14.40% | |
| Bridgeway Capital Management, Llc | 0.01% | 128,000 | $320,000 | $366,080 | +$46,080 | +14.40% | |
| Geode Capital Management, Llc | 0.00% | 116,736 | $291,839 | $333,865 | +$42,026 | +14.40% | |
| Hrt Financial Lp | 0.00% | 116,288 | $290,000 | $332,584 | +$42,584 | +14.68% | |
| Blackrock, Inc. | 0.00% | 88,495 | $221,239 | $253,096 | +$31,857 | +14.40% | |
| Prelude Capital Management, Llc | 0.02% | 83,998 | $209,995 | $240,234 | +$30,239 | +14.40% | |
| Rangeley Capital, Llc | 0.17% | 74,000 | $185,000 | $211,640 | +$26,640 | +14.40% | |
| Gsa Capital Partners Llp | 0.01% | 72,353 | $181,000 | $206,930 | +$25,930 | +14.33% | |
| Vanguard Fiduciary Trust Co | 0.00% | 65,136 | $162,840 | $186,289 | +$23,449 | +14.40% | |
| Jane Street Group, Llc | 0.00% | 64,323 | $160,807 | $183,964 | +$23,157 | +14.40% | |
| Superstring Capital Management Lp | 0.09% | 55,356 | $138,390 | $158,318 | +$19,928 | +14.40% | |
| Northern Trust Corp | 0.00% | 34,824 | $87,060 | $99,597 | +$12,537 | +14.40% | |
| Xtx Topco Ltd | 0.00% | 33,361 | $83,403 | $95,412 | +$12,009 | +14.40% | |
| Qube Research & Technologies Ltd | 0.00% | 20,207 | $50,518 | $57,792 | +$7,274 | +14.40% | |
| China Universal Asset Management Co., Ltd. | 0.00% | 16,900 | $42,250 | $48,334 | +$6,084 | +14.40% | |
| State Street Corp | 0.00% | 15,962 | $39,905 | $45,651 | +$5,746 | +14.40% | |
| Morgan Stanley | 0.00% | 13,000 | $32,500 | $37,180 | +$4,680 | +14.40% | |
| Caitong International Asset Management Co., Ltd | 0.00% | 10,443 | $26,108 | $29,867 | +$3,759 | +14.40% | |
| Pure Financial Advisors, Llc | 0.00% | 10,100 | $25,250 | $28,886 | +$3,636 | +14.40% | |
| Tower Research Capital Llc (Trc) | 0.00% | 348 | $870 | $995 | +$125 | +14.40% | |
| Bnp Paribas Financial Markets | 0.00% | 176 | $440 | $503 | +$63 | +14.40% | |
| Jpmorgan Chase & Co | 0.00% | 179 | $439 | $512 | +$73 | +16.62% | |
| Mercer Global Advisors Inc | 0.00% | 50 | $125 | $143 | +$18 | +14.40% | |
| Cwm, Llc | 0.00% | 8 | $9 | $23 | +$14 | +154.22% | |
| Financial Management Professionals, Inc. | 0.00% | 2 | $5 | $6 | +$1 | +14.40% | |
| Sbi Securities Co., Ltd. | 0.00% | 2 | $5 | $6 | +$1 | +14.40% | |
| Ubs Group Ag | 0.00% | 2 | $5 | $6 | +$1 | +14.40% |
Frequently asked questions about BOLD
Who owns the most BOLD stock?
The largest holders of BOLD are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for BOUNDLESS BIO INC (BOLD).
Is BOLD widely held by superinvestors?
Many widely followed stocks like BOLD appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly BOLD is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.