MAZE · Maze Therapeutics, Inc. · Shareholders & Ownership
Every disclosed holder of MAZE in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns MAZE
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 58,577,342 | 105.45% |
| Insiders (Forms 3, 4, 5) | 6,159,391 | 11.09% |
| 13D/G-only blocks | 12,113,534 | 21.81% |
| Remaining | 21,301,099 | -38.35% |
| Registered funds (N-PORT, not summed) | 10,113,469 | 18.21% |
Shares outstanding: 55,549,168, the issuer's latest cover-page count restated onto today's split basis.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of MAZE
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Frazier Life Sciences Management, L.P.
13F
CIK 1892134 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,032,915 | ||
| 2 |
Third Rock Ventures IV, L.P.
13G
CIK 1688327 · Unknown · Dec 31, 2025
Rule 13d-1(d), exempt investor, not summed
|
4,473,958 | ||
| 2.1 |
|
5,424,758 | ||
| 3 |
TRV GP IV, LLC
13F
CIK 1688325 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,473,958 | ||
| 4 |
|
4,342,266 | ||
| 5 |
|
4,120,053 | ||
| 6 |
ARCH Venture Management, LLC
13F
CIK 1274403 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,120,053 | ||
| 7 |
Deep Track Capital, LP
13F
CIK 1856083 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,732,569 | ||
| 8 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,502,841 | ||
| 8.1 |
BlackRock, Inc.
13G
CIK 2012383 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
2,978,114 | ||
| 8.2 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
920,284 | ||
| 8.3 |
iShares Russell 2000 Growth ETF
Fund
S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
276,075 | ||
| 8.4 |
iShares Biotechnology ETF
Fund
S000004350 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
242,763 | ||
| 8.5 |
BlackRock Health Sciences Opportunities Portfolio
Fund
S000001877 · Registered fund · May 29, 2026
BlackRock Funds, not summed
|
184,453 | ||
| 9 |
Jupiter Topco LLC
13F
CIK 2146052 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,408,045 | ||
| 10 |
T. Rowe Price Investment Management, Inc.
13F
CIK 1897612 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,603,682 | ||
| 11 |
Logos Global Management LP
13F
CIK 1792126 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,935,000 | ||
| 12 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,778,222 | ||
| 13 |
a16z Capital Management, L.L.C.
13F
CIK 1540358 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,702,225 | ||
| 14 |
Matrix Capital Management Company, LP
13G
CIK 1410830 · Registered investment adviser · Sep 30, 2025
Rule 13d-1(d), exempt investor
|
1,653,684 | ||
| 15 |
Venrock Adviser, LLC
13F
CIK 1615982 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,602,034 | ||
| 16 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,411,990 | ||
| 17 |
|
1,388,583 | ||
| 18 |
Alphabet Inc.
13F
CIK 1652044 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,388,583 | ||
| 19 |
BRAIDWELL LP
13F
CIK 1920938 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,140,040 | ||
| 20 |
FARALLON CAPITAL MANAGEMENT LLC
13F
CIK 909661 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,107,814 | ||
| 21 |
FMR LLC
13F
CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,056,959 | ||
| 21.1 |
Select Biotechnology Portfolio
Fund
S000007486 · Registered fund · May 31, 2026
Fidelity Select Portfolios, not summed
|
739,660 | ||
| 21.2 |
Fidelity Small Cap Index Fund
Fund
S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
|
385,642 | ||
| 21.3 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
109,663 | ||
| 21.4 |
Fidelity Growth Company Fund
Fund
S000007119 · Registered fund · May 31, 2026
Fidelity Mt. Vernon Street Trust, not summed
|
95,238 | ||
| 21.5 |
Fidelity Total Market Index Fund
Fund
S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
38,987 | ||
| 22 |
General Catalyst Group Management, LLC
13F
CIK 1637946 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,035,910 | ||
| 23 |
|
997,533 | ||
| 23.1 |
State Street(R) SPDR(R) S&P(R) Pharmaceuticals ETF
Fund
S000012321 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
265,830 | ||
| 23.2 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
10,000 | ||
| 23.3 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
891 | ||
| 24 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
964,011 | ||
| 25 |
Driehaus Capital Management LLC
13F
CIK 938206 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
954,886 | ||
| 25.1 |
Driehaus Micro Cap Growth Fund
Fund
S000042829 · Registered fund · Jun 30, 2026
Driehaus Mutual Funds, not summed
|
62,997 | ||
| 26 |
TRV GP V, LLC
13F
CIK 1990717 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
950,800 | ||
| 27 |
MARSHALL WACE, LLP
13F
CIK 1318757 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
914,572 | ||
| 28 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
858,054 | ||
| 29 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
852,676 | ||
| 30 |
Casdin Capital, LLC
13F
CIK 1534261 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
843,857 | ||
| 31 |
ArrowMark Colorado Holdings LLC
13F
CIK 1483859 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
767,383 | ||
| 32 |
Woodline Partners LP
13F
CIK 1784547 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
736,216 | ||
| 33 |
|
608,948 | ||
| 34 |
BESSEMER GROUP INC
13F
CIK 1054074 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
481,790 | ||
| 35 |
JPMorgan Small Cap Growth Fund
Fund
S000003859 · Registered fund · Jun 30, 2026
JPMorgan Trust II, not summed
|
421,350 | ||
| 36 |
SPHERA FUNDS MANAGEMENT LTD.
13F
CIK 1496201 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
417,564 | ||
| 37 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
393,107 | ||
| 38 |
Aberdeen Group plc
13F
CIK 1716774 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
383,773 | ||
| 39 |
Ikarian Capital, LLC
13F
CIK 1778253 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
378,999 | ||
| 40 |
HHLR ADVISORS, LTD.
13F
CIK 1762304 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
366,028 | ||
| 41 |
ADAR1 Capital Management, LLC
13F
CIK 1940272 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
339,276 | ||
| 42 |
Squadron Capital Management LLC
13F
CIK 2050709 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
335,000 | ||
| 43 |
|
328,700 | ||
| 44 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
325,513 | ||
| 45 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
321,227 | ||
| 46 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
294,742 | ||
| 46.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
17,713 | ||
| 46.2 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
8,024 | ||
| 47 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
293,144 | ||
| 47.1 |
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund
S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
5,055 | ||
| 47.2 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
3,080 | ||
| 48 |
Candriam S.C.A.
13F
CIK 1537014 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
273,932 | ||
| 49 |
Hudson Bay Capital Management LP
13F
CIK 1393825 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
270,000 | ||
| 50 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
260,566 | ||
| 50.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
100,724 | ||
| 50.2 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
85,504 | ||
| 50.3 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
21,905 | ||
| 50.4 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
11,544 |
27 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
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