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MAZE · Maze Therapeutics, Inc. · Shareholders & Ownership

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$32.45 +2.75 (+9.26%) At close · Oct 20
Market Cap
$1.80B
Shares
55.55M
Volume · Oct 20 1.57M Avg daily vol (3M) 623.78K

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 positions

No 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
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
Third Rock Ventures IV, L.P.
Insider CIK 1688327 · Nov 4, 2025
10% Owner, issuer-wide
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
James N. Topper
13G CIK 1863769 · Unknown · Dec 31, 2025
Rule 13d-1(c), passive investor
4,342,266
5
ARCH Venture Fund X, L.P.
13G CIK 1757011 · Unknown · Mar 31, 2025
Rule 13d-1(d), exempt investor
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
Alphabet Holdings LLC
13G CIK 1845041 · Unknown · Dec 31, 2025
Rule 13d-1(d), exempt investor
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
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
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
James Tananbaum
13G CIK 1704131 · Unknown · Sep 30, 2025
Rule 13d-1(c), passive investor
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
Lim Jonathan E
Insider CIK 1283290 · Feb 3, 2025
Director, issuer-wide
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.

Showing 1–50 of 259 holders

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Key facts CIK 1842295 CUSIP 578784100 13F (30d) 9 filings 9 filers Visit website Investor relations