Vault-13

MAZE THERAPEUTICS INC MAZE

COM · Common Stock · CUSIP 578784100

76 institutional holders +7 vs Q1 2025
38,835,28938.8m shares reported held*
88.6% of all shares outstanding*
$476.7mreported value*
13 new 25 added 14 reduced 6 sold out net sold ≈ $14.6m (-1.2m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($27.5k this quarter). Holder counts are more reliable. Shares outstanding: 43.9m as of 2025-08-06, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $12.28.

Trends to Q2 2025

Institutional holders

Managers reporting a position, each quarter

050100Q1 25: 69Q2 25: 7676Q1 25Q2 25
Numbers
QuarterHolders
Q1 202569
Q2 202576

Biggest buyers

Deep Track Capital, LP Added +679,784+679.8k
Frazier Life Sciences Management, L.P. Added +438,274+438.3k
JANUS HENDERSON GROUP PLC Added +154,890+154.9k
STATE STREET CORP Added +79,972+80.0k
Driehaus Capital Management LLC Added +61,285+61.3k
STRS OHIO Added +45,300+45.3k
BlackRock, Inc. Added +32,116+32.1k
CW Advisors, LLC New +30,235+30.2k
AQR CAPITAL MANAGEMENT LLC New +27,467+27.5k
ALPS ADVISORS INC New +23,577+23.6k

Biggest sellers

ALLIANCEBERNSTEIN L.P. Reduced -984,650-984.6k
FMR LLC Reduced -413,849-413.8k
Logos Global Management LP Reduced -325,000-325.0k
Octagon Capital Advisors LP Reduced -290,333-290.3k
Affinity Asset Advisors, LLC Sold out -250,000-250.0k
VANGUARD GROUP INC Reduced -246,941-246.9k
Casdin Capital, LLC Reduced -187,500-187.5k
Ikarian Capital, LLC Reduced -60,000-60.0k
UBS Group AG Reduced -36,662-36.7k
BOOTHBAY FUND MANAGEMENT, LLC Reduced -21,438-21.4k

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
ARCH Venture Fund X, L.P. 13G · exempt (held before listing) new · filed 2025-05-15 9.4% new 4.1m≈ $122.9m 2025-05-15
Third Rock Ventures IV, L.P. 13G · exempt (held before listing) -4.6 pts · filed 2026-02-13 9.3% -4.6 pts 4.5m≈ $133.5m 2026-02-13
Deep Track Capital, LP 13G · passive investor +2.1 pts · filed 2025-08-14 9.0% +2.1 pts 3.9m≈ $117.8m 2025-08-14
Frazier Life Sciences Public Fund, L.P. 13G · passive investor +1.3 pts · filed 2026-02-13 9.0% +1.3 pts 4.3m≈ $129.6m 2026-02-13
JANUS HENDERSON GROUP PLC 13G · institution -1.5 pts · filed 2026-05-15 5.8% -1.5 pts 2.9m≈ $85.3m 2026-05-15
BlackRock, Inc. 13G · institution new · filed 2026-07-29 5.4% new 3.0m≈ $88.9m 2026-07-29

Fell to 5% or below in the last year: Paradigm Biocapital Advisors LP (0.0%, 2026-08-14), GV 2019, L.P. (2.9%, 2026-02-06)

Insider purchases and sales in Q2 2025

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported in Q2 2025.

Holders, Q2 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 TRV GP IV, LLC 45.63% of their portfolio Boston, MA 6,073,9586.1m $74.5m $74.5m 45.63% Unchanged
2 Frazier Life Sciences Management, L.P. 2.24% of their portfolio PALO ALTO, CA 4,567,2754.6m $56.0m $56.0m 2.24% Added +438.3k +438,274
3 ARCH Venture Management, LLC 16.91% of their portfolio CHICAGO, IL 4,120,0534.1m $50.6m $50.6m 16.91% Unchanged
4 Deep Track Capital, LP 1.56% of their portfolio GREENWICH, CT 3,948,9103.9m $48.5m $48.5m 1.56% Added +679.8k +679,784
5 Matrix Capital Management Company, LP 13.69% of their portfolio Portsmouth, NH 2,486,1842.5m $30.5m $30.5m 13.69% Unchanged
6 Alphabet Inc. 1.39% of their portfolio Mountain View, CA 2,412,4712.4m $29.6m $29.6m 1.39% Unchanged
7 Foresite Capital Management IV, LLC 20.93% of their portfolio WEST HOLLYWOOD, CA 2,111,9192.1m $25.9m $25.9m 20.93% Unchanged
8 a16z Capital Management, L.L.C. 6.67% of their portfolio MENLO PARK, CA 1,702,2251.7m $20.9m $20.9m 6.67% Unchanged
9 JANUS HENDERSON GROUP PLC 0.01% of their portfolio LONDON, X0 1,401,2601.4m $17.3m $17.3m 0.01% Added +154.9k +154,890
10 General Catalyst Group Management, LLC 0.30% of their portfolio CAMBRIDGE, MA 1,035,9101.0m $12.7m $12.7m 0.30% Unchanged
11 TRV GP V, LLC 7.04% of their portfolio Boston, MA 950,800950.8k $11.7m $11.7m 7.04% Unchanged
12 Woodline Partners LP 0.06% of their portfolio San Francisco, CA 940,700940.7k $11.5m $11.5m 0.06% Added +11.6k +11,598
13 Casdin Capital, LLC 0.85% of their portfolio New York, NY 758,857758.9k $9.3m $9.3m 0.85% Reduced -187.5k -187,500
14 HARVARD MANAGEMENT CO INC 0.54% of their portfolio BOSTON, MA 637,528637.5k $7.8m $7.8m 0.54% Unchanged
15 BlackRock, Inc. 0.00% of their portfolio New York, NY 614,704614.7k $7.5m $7.5m 0.00% Added +32.1k +32,116
16 Logos Global Management LP 1.00% of their portfolio San Francisco, CA 611,914611.9k $7.5m $7.5m 1.00% Reduced -325.0k -325,000
17 FMR LLC 0.00% of their portfolio BOSTON, MA 554,534554.5k $6.8m $6.8m 0.00% Reduced -413.8k -413,849
18 BESSEMER GROUP INC 0.01% of their portfolio WOODBRIDGE, NJ 481,790481.8k $5.9m $5.9m 0.01% Unchanged
19 HHLR ADVISORS, LTD. 0.18% of their portfolio GRAND CAYMAN, E9 457,535457.5k $5.6m $5.6m 0.18% Unchanged
20 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 419,613419.6k $5.1m $5.1m 0.00% Reduced -246.9k -246,941
21 SPHERA FUNDS MANAGEMENT LTD. 1.14% of their portfolio TEL AVIV, L3 356,453356.5k $4.4m $4.4m 1.14% Added +899 +899
22 Foresite Capital Management V, LLC 5.25% of their portfolio WEST HOLLYWOOD, CA 345,191345.2k $4.2m $4.2m 5.25% Unchanged
23 Ikarian Capital, LLC 1.07% of their portfolio DALLAS, TX 262,740262.7k $3.2m $3.2m 1.07% Reduced -60.0k -60,000
24 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 231,237231.2k $2.8m $2.8m 0.00% Added +18.8k +18,773
25 Driehaus Capital Management LLC 0.02% of their portfolio Chicago, IL 193,400193.4k $2.4m $2.4m 0.02% Added +61.3k +61,285
26 Octagon Capital Advisors LP 0.48% of their portfolio NEW YORK, NY 177,667177.7k $2.2m $2.2m 0.48% Reduced -290.3k -290,333
27 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 144,685144.7k $1.8m $1.8m 0.00% Added +80.0k +79,972
28 Alyeska Investment Group, L.P. 0.01% of their portfolio CHICAGO, IL 125,000125.0k $1.5m $1.5m 0.01% Unchanged
29 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 85,54685.5k $1.0m $1.0m 0.00% Added +14.7k +14,708
30 BOOTHBAY FUND MANAGEMENT, LLC 0.03% of their portfolio NEW YORK, NY 75,53075.5k $926.8k $926.8k 0.03% Reduced -21.4k -21,438
31 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 75,17175.2k $922.3k $922.3k 0.00% Added +2.9k +2,866
32 UBS Group AG 0.00% of their portfolio ZURICH, V8 51,40251.4k $630.7k $630.7k 0.00% Reduced -36.7k -36,662
33 STRS OHIO 0.00% of their portfolio COLUMBUS, OH 46,90046.9k $575.5k $575.5k 0.00% Added +45.3k +45,300
34 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 31,79631.8k $390.1k $390.1k 0.00% Reduced -984.6k -984,650
35 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 31,78131.8k $390.0k $390.0k 0.00% Added +7.9k +7,888
36 CW Advisors, LLC 0.00% of their portfolio BOSTON, MA 30,23530.2k $371.0k $371.0k 0.00% New
37 Ghisallo Capital Management LLC 0.01% of their portfolio BOSTON, MA 30,00030.0k $368.1k $368.1k 0.01% Unchanged
38 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 27,46727.5k $337.0k $337.0k 0.00% New
39 ALPS ADVISORS INC 0.00% of their portfolio Denver, CO 23,57723.6k $289.3k $289.3k 0.00% New
40 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 21,54621.5k $264.4k $264.4k 0.00% Added +4.3k +4,313
41 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 19,59719.6k $240.5k $240.5k 0.00% Unchanged
42 Ensign Peak Advisors, Inc 0.00% of their portfolio SALT LAKE CITY, UT 18,53918.5k $227.5k $227.5k 0.00% New
43 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 18,43018.4k $226.1k $226.1k 0.00% Reduced -2.1k -2,122
44 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 14,64114.6k $179.6k $179.6k 0.00% Reduced -3 -3
45 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 12,99013.0k $159.4k $159.4k 0.00% Added +6.8k +6,774
46 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 11,37511.4k $139.6k $139.6k 0.00% Unchanged
47 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 10,56710.6k $129.7k $129.7k 0.00% Reduced -41 -41
48 Engineers Gate Manager LP 0.00% of their portfolio NEW YORK, NY 10,21210.2k $125.3k $125.3k 0.00% New
49 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 8,8858.9k $109.0k $109.0k 0.00% Unchanged
50 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 7,7147.7k $94.6k $94.6k 0.00% Added +479 +479
51 Virtus Investment Advisers, LLC 0.03% of their portfolio HARTFORD, CT 6,9406.9k $85.2k $85.2k 0.03% New
52 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 5,7825.8k $70.9k $70.9k 0.00% Added +1.5k +1,455
53 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 5,6155.6k $68.9k $68.9k 0.00% Added +922 +922
54 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 4,9014.9k $60.1k $60.1k 0.00% Reduced -234 -234
55 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 4,6084.6k $56.5k $56.5k 0.00% Added +3.8k +3,774
56 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 4,3664.4k $53.6k $53.6k 0.00% Reduced -5.8k -5,775
57 Legal & General Group Plc 0.00% of their portfolio London, X0 4,2424.2k $52.0k $52.0k 0.00% Added +3.4k +3,371
58 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 2,3002.3k $28.2k $28.2k 0.00% Unchanged
59 CWM, LLC 0.00% of their portfolio OMAHA, NE 2,2662.3k $28.0k $28.0k 0.00% New
60 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 2,2412.2k $27.5k $27.5k 0.00% Unchanged
61 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 2,1722.2k $26.0k $26.0k 0.00% Added +2.0k +2,039
62 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 894894 $11.0k $11.0k 0.00% Unchanged
63 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 759759 $9.3k $9.3k 0.00% Added +359 +359
64 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 554554 $6.8k $6.8k 0.00% Unchanged
65 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 505505 $6.2k $6.2k 0.00% Added +479 +479
66 AMALGAMATED BANK 0.00% of their portfolio NEW YORK, NY 305305 $4.0k $4.0k 0.00% Unchanged
67 Sterling Capital Management LLC 0.00% of their portfolio CHARLOTTE, NC 224224 $2.7k $2.7k 0.00% Added +150 +150
68 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 182182 $2.2k $2.2k 0.00% New
69 EverSource Wealth Advisors, LLC 0.00% of their portfolio BIRMINGHAM, AL 114114 $1.4k $1.4k 0.00% New
70 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 5454 $595 $595 0.00% New
71 GAMMA Investing LLC 0.00% of their portfolio FOSTER CITY, CA 5151 $626 $626 0.00% New
72 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 2626 $319 $319 0.00% Added +8 +8
73 Essential Partners LLC 0.00% of their portfolio RANCHO SANTA FE, CA 77 $86 $86 0.00% First filing
74 True Wealth Design, LLC 0.00% of their portfolio AKRON, OH 55 $62 $62 0.00% New
75 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 33 $37 $37 0.00% New
76 CONCOURSE FINANCIAL GROUP SECURITIES, INC. — of their portfolio BIRMINGHAM, AL 00 $0 $0 — Unchanged