Vault-13

LEXEO THERAPEUTICS INC LXEO

COM · Common Stock · CUSIP 52886X107

91 institutional holders +2 vs Q1 2025
42,239,16642.2m shares reported held*
78.2% of all shares outstanding*
$169.9mreported value*
16 new 36 added 17 reduced 15 sold out net bought ≈ $57.2m (+14.2m 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 ($29.4k this quarter). Holder counts are more reliable. Shares outstanding: 54.0m as of 2025-08-12, 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 ≈ $4.02. Options: 3 managers hold calls ($7.6k notional), 2 hold puts ($8.0k).

Trends to Q2 2025

Institutional holders

Managers reporting a position, each quarter

050100Q4 23: 32Q1 24: 55Q2 24: 61Q3 24: 70Q4 24: 91Q1 25: 89Q2 25: 9191Q4 23Q2 24Q4 24Q2 25
Numbers
QuarterHolders
Q4 202332
Q1 202455
Q2 202461
Q3 202470
Q4 202491
Q1 202589
Q2 202591

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q1 24: 45 bought or addedQ1 24: 10 cut or sold outQ1 24Q2 24: 40 bought or addedQ2 24: 22 cut or sold outQ2 24Q3 24: 49 bought or addedQ3 24: 15 cut or sold outQ3 24Q4 24: 54 bought or addedQ4 24: 20 cut or sold outQ4 24Q1 25: 40 bought or addedQ1 25: 41 cut or sold outQ1 25Q2 25: 52 bought or addedQ2 25: 32 cut or sold outQ2 25
Numbers
QuarterBought or addedCut or sold out
Q1 20244510
Q2 20244022
Q3 20244915
Q4 20245420
Q1 20254041
Q2 20255232

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$50k$100k$150kQ3 24 calls: $0Q3 24 puts: $0Q3 24P/C —Q4 24 calls: $0Q4 24 puts: $0Q4 24P/C —Q1 25 calls: $111.3kQ1 25 puts: $87.1kQ1 25P/C 0.78Q2 25 calls: $7.6kQ2 25 puts: $8.0kQ2 25P/C 1.05
Numbers
QuarterCallsPutsP/C
Q3 2024$0$0—
Q4 2024$0$0—
Q1 2025$111.3k$87.1k0.78
Q2 2025$7.6k$8.0k1.05

Biggest buyers

Balyasny Asset Management L.P. New +4,009,137+4.0m
Frazier Life Sciences Management, L.P. Added +3,469,210+3.5m
Affinity Asset Advisors, LLC Added +2,108,474+2.1m
Vestal Point Capital, LP Added +2,091,912+2.1m
MILLENNIUM MANAGEMENT LLC Added +1,764,803+1.8m
Woodline Partners LP Added +1,735,148+1.7m
VANGUARD GROUP INC Added +903,581+903.6k
CITADEL ADVISORS LLC Added +884,604+884.6k
Ally Bridge Group (NY) LLC New +867,302+867.3k
UBS Group AG Added +239,822+239.8k

Biggest sellers

NOVO HOLDINGS A/S Sold out -1,122,581-1.1m
JANUS HENDERSON GROUP PLC Reduced -873,537-873.5k
Avidity Partners Management LP Sold out -645,000-645.0k
RA CAPITAL MANAGEMENT, L.P. Sold out -546,554-546.6k
Point72 Asset Management, L.P. Reduced -450,263-450.3k
Laurion Capital Management LP Sold out -260,228-260.2k
ADAGE CAPITAL PARTNERS GP, L.L.C. Sold out -237,953-238.0k
TWO SIGMA ADVISERS, LP Sold out -96,100-96.1k
MARSHALL WACE, LLP Sold out -81,009-81.0k
Shay Capital LLC Sold out -43,296-43.3k

Biggest calls

SIMPLEX TRADING, LLC Reduced $4.0k1.1k shares
GROUP ONE TRADING LLC New $3.6k900 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

SIMPLEX TRADING, LLC Added $8.0k2.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

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
BALYASNY ASSET MANAGEMENT L.P. 13G · institution +0.3 pts · filed 2026-08-14 10.0% +0.3 pts 7.8m≈ $36.5m 2026-08-14
JANUS HENDERSON GROUP PLC 13G · institution -1.3 pts · filed 2025-12-08 10.0% -1.3 pts 7.3m≈ $33.9m 2025-12-08
Affinity Asset Advisors, LLC 13G · institution +1.3 pts · filed 2026-08-13 8.4% +1.3 pts 6.7m≈ $31.1m 2026-08-13
SUVRETTA CAPITAL MANAGEMENT, LLC 13G · passive investor new · filed 2026-04-13 7.7% new 5.7m≈ $26.4m 2026-04-13
Vestal Point Capital, LP 13G · institution +1.5 pts · filed 2025-11-14 7.5% +1.5 pts 4.1m≈ $19.2m 2025-11-14
CITADEL ADVISORS LLC 13G · passive investor -2.2 pts · filed 2026-02-17 7.4% -2.2 pts 5.5m≈ $25.6m 2026-02-17
RA CAPITAL MANAGEMENT, L.P. 13G · passive investor new · filed 2025-10-27 6.9% new 5.0m≈ $23.3m 2025-10-27
BlackRock, Inc. 13G · institution +2.7 pts · filed 2026-01-21 6.7% +2.7 pts 4.9m≈ $22.7m 2026-01-21
MIZUHO FINANCIAL GROUP INC 13G · institution +0.8 pts · filed 2025-05-13 6.6% +0.8 pts 2.2m≈ $10.3m 2025-05-13
JPMORGAN CHASE & CO 13G · institution new · filed 2026-10-13 5.5% new 4.6m≈ $21.3m 2026-10-13
STATE STREET CORP 13G · institution new · filed 2026-08-07 5.5% new 4.4m≈ $20.3m 2026-08-07
Paradigm Biocapital Advisors LP 13G · passive investor -3.0 pts · filed 2026-08-14 5.3% -3.0 pts 4.2m≈ $19.4m 2026-08-14
Frazier Life Sciences Public Fund, L.P. 13G · passive investor -0.6 pts · filed 2026-02-13 5.1% -0.6 pts 3.7m≈ $17.2m 2026-02-13

Fell to 5% or below in the last year: ORBIMED ADVISORS LLC (4.1%, 2026-08-14), VANGUARD GROUP INC (0.0%, 2026-03-27)

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.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
404Q3 23: 0 buyingQ3 23: 0 sellingQ4 23: 0 buyingQ4 23: 0 sellingQ4 23Q1 24: 0 buyingQ1 24: 0 sellingQ2 24: 0 buyingQ2 24: 1 sellingQ2 24Q3 24: 0 buyingQ3 24: 1 sellingQ4 24: 1 buyingQ4 24: 1 sellingQ4 24Q1 25: 0 buyingQ1 25: 4 sellingQ2 25: 0 buyingQ2 25: 4 sellingQ2 25
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20230—0——
Q4 20230—0——
Q1 20240—0——
Q2 20240—1$154.4k$154.4k
Q3 20240—1$1.0m$1.0m
Q4 20241$104.8k1$80.5k$80.5k
Q1 20250—4$45.3k—
Q2 20250—4$7.1k—
DateInsiderTradeSharesPrice ValueTheir holding
2025-05-16 Townsend Richard Nolan Chief Executive Officer, director Sold 1,074 $2.77 $3.0k1.1k shares -0%
2025-05-16 Adler Eric Chief Medical Officer Sold 585 $2.77 $1.6k585 shares -1%
2025-05-16 Robertson Jenny Chief Legal Officer Sold 521 $2.77 $1.4k521 shares -1%
2025-05-16 See Tai Sandi Chief Development Officer Sold 367 $2.77 $1.0k367 shares -1%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q2 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Frazier Life Sciences Management, L.P. 0.71% of their portfolio PALO ALTO, CA 4,424,7254.4m $17.8m $17.8m 0.71% Added +3.5m +3,469,210
2 Balyasny Asset Management L.P. 0.04% of their portfolio Chicago, IL 4,009,1374.0m $16.1m $16.1m 0.04% New
3 JANUS HENDERSON GROUP PLC 0.01% of their portfolio LONDON, X0 3,684,3833.7m $14.8m $14.8m 0.01% Reduced -873.5k -873,537
4 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 3,607,9673.6m $14.5m $14.5m 0.01% Added +884.6k +884,604
5 Affinity Asset Advisors, LLC 2.13% of their portfolio NEW YORK, NY 3,589,3553.6m $14.4m $14.4m 2.13% Added +2.1m +2,108,474
6 Vestal Point Capital, LP 0.68% of their portfolio NEW YORK, NY 3,228,1613.2m $13.0m $13.0m 0.68% Added +2.1m +2,091,912
7 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 2,836,2922.8m $11.4m $11.4m 0.01% Added +1.8m +1,764,803
8 Woodline Partners LP 0.05% of their portfolio San Francisco, CA 2,572,1622.6m $10.3m $10.3m 0.05% Added +1.7m +1,735,148
9 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 2,002,8662.0m $8.1m $8.1m 0.00% Added +903.6k +903,581
10 BlackRock, Inc. 0.00% of their portfolio New York, NY 1,827,9641.8m $7.3m $7.3m 0.00% Reduced -14.3k -14,268
11 Omega Fund Management, LLC 3.08% of their portfolio Boston, MA 1,184,6361.2m $4.8m $4.8m 3.08% Unchanged
12 Blackstone Inc. 0.02% of their portfolio NEW YORK, NY 1,124,9221.1m $4.5m $4.5m 0.02% Reduced -33.7k -33,695
13 D1 Capital Partners L.P. 0.05% of their portfolio New York, NY 978,652978.7k $3.9m $3.9m 0.05% Unchanged
14 Ally Bridge Group (NY) LLC 3.05% of their portfolio NEW YORK, NY 867,302867.3k $3.5m $3.5m 3.05% New
15 Point72 Asset Management, L.P. 0.01% of their portfolio STAMFORD, CT 647,880647.9k $2.6m $2.6m 0.01% Reduced -450.3k -450,263
16 Siren, L.L.C. 0.13% of their portfolio New York, NY 603,435603.4k $2.4m $2.4m 0.13% Unchanged
17 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 578,081578.1k $2.3m $2.3m 0.00% Reduced -8.4k -8,435
18 Ikarian Capital, LLC 0.73% of their portfolio DALLAS, TX 550,029550.0k $2.2m $2.2m 0.73% Unchanged
19 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 513,026513.0k $2.1m $2.1m 0.00% Added +43.3k +43,298
20 Verition Fund Management LLC 0.01% of their portfolio GREENWICH, CT 414,863414.9k $1.7m $1.7m 0.01% Unchanged
21 DAFNA Capital Management LLC 0.42% of their portfolio LOS ANGELES, CA 378,083378.1k $1.5m $1.5m 0.42% Unchanged
22 UBS Group AG 0.00% of their portfolio ZURICH, V8 271,904271.9k $1.1m $1.1m 0.00% Added +239.8k +239,822
23 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 200,786200.8k $807.2k $807.2k 0.00% Reduced -5.3k -5,307
24 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 188,635188.6k $758.3k $758.3k 0.00% Added +138.3k +138,298
25 Privium Fund Management B.V. 0.16% of their portfolio AMSTERDAM, P7 178,356178.4k $752.7k $752.7k 0.16% Added +18.2k +18,158
26 BOOTHBAY FUND MANAGEMENT, LLC 0.02% of their portfolio NEW YORK, NY 163,172163.2k $656.0k $656.0k 0.02% Unchanged
27 ADAR1 Capital Management, LLC 0.09% of their portfolio AUSTIN, TX 145,109145.1k $583.3k $583.3k 0.09% Reduced -25.3k -25,339
28 PERCEPTIVE ADVISORS LLC 0.02% of their portfolio NEW YORK, NY 139,835139.8k $562.1k $562.1k 0.02% Unchanged
29 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 116,142116.1k $466.9k $466.9k 0.00% Added +69.5k +69,475
30 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 106,200106.2k $426.9k $426.9k 0.00% Added +85.9k +85,900
31 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 84,78184.8k $340.8k $340.8k 0.00% Added +465 +465
32 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 69,24269.2k $278.4k $278.4k 0.00% Added +32.6k +32,618
33 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 65,15265.2k $261.9k $261.9k 0.00% Added +14.5k +14,508
34 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 64,22064.2k $258.2k $258.2k 0.00% Added +8.0k +8,046
35 Palumbo Wealth Management LLC 0.07% of their portfolio GREAT NECK, NY 56,30356.3k $226.3k $226.3k 0.07% New
36 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio HOUSTON, TX 53,40053.4k $214.7k $214.7k 0.01% Added +15.0k +15,000
37 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 48,43448.4k $194.7k $194.7k 0.00% Added +8.2k +8,223
38 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 48,01148.0k $193.0k $193.0k 0.00% Reduced -2.1k -2,136
39 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 47,02347.0k $189.0k $189.0k 0.00% New
40 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 36,36836.4k $146.2k $146.2k 0.00% Reduced -42.7k -42,740
41 PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio BOSTON, MA 34,74134.7k $139.7k $139.7k 0.00% Unchanged
42 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 33,10233.1k $133.1k $133.1k 0.00% Reduced -2.9k -2,948
43 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 31,99032.0k $128.6k $128.6k 0.00% Added +1.8k +1,798
44 Quadrature Capital Ltd 0.00% of their portfolio LONDON, X0 29,77929.8k $120.3k $120.3k 0.00% New
45 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 29,37029.4k $118.1k $118.1k 0.00% Added +13.4k +13,400
46 Pale Fire Capital SE 0.01% of their portfolio Prague, 2N 27,65027.6k $111.2k $111.2k 0.01% Added +8.8k +8,750
47 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 26,65326.7k $107.1k $107.1k 0.00% Added +4.9k +4,883
48 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 23,92223.9k $96.2k $96.2k 0.00% Added +12.6k +12,552
49 Susquehanna Portfolio Strategies, LLC 0.00% of their portfolio Bala Cynwyd, PA 22,25922.3k $89.5k $89.5k 0.00% New
50 Soltis Investment Advisors LLC 0.01% of their portfolio ST. GEORGE, UT 20,00020.0k $80.4k $80.4k 0.01% Unchanged
51 CAXTON CORP 0.71% of their portfolio Princeton, NJ 17,33217.3k $69.7k $69.7k 0.71% Reduced -519 -519
52 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 15,32515.3k $61.6k $61.6k 0.00% Added +3.9k +3,916
53 Vanguard Personalized Indexing Management, LLC 0.00% of their portfolio OAKLAND, CA 15,00015.0k $60.3k $60.3k 0.00% New
54 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 14,74814.7k $59.3k $59.3k 0.00% Reduced -8.6k -8,579
55 GSA CAPITAL PARTNERS LLP 0.00% of their portfolio LONDON, X0 14,52814.5k $58.0k $58.0k 0.00% New
56 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 13,75013.8k $55.3k $55.3k 0.00% Reduced -30 -30
57 INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio WEST PALM BEACH, FL 13,68213.7k $55.0k $55.0k 0.00% Added +2.3k +2,342
58 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 13,47713.5k $54.2k $54.2k 0.00% Reduced -624 -624
59 AXQ CAPITAL, LP 0.02% of their portfolio JERSEY CITY, NJ 12,47512.5k $50.1k $50.1k 0.02% New
60 Cerity Partners LLC 0.00% of their portfolio NEW YORK, NY 12,44712.4k $50.0k $50.0k 0.00% New
61 IEQ CAPITAL, LLC 0.00% of their portfolio Foster City, CA 11,85111.9k $47.6k $47.6k 0.00% New
62 FMR LLC 0.00% of their portfolio BOSTON, MA 11,75311.8k $47.2k $47.2k 0.00% Added +1.9k +1,889
63 Ethic Inc. 0.00% of their portfolio NEW YORK, NY 10,72610.7k $44.2k $44.2k 0.00% New
64 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 10,42510.4k $42.0k $42.0k 0.00% Unchanged
65 CWM, LLC 0.00% of their portfolio OMAHA, NE 10,35110.4k $42.0k $42.0k 0.00% Added +6.2k +6,216
66 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 10,19010.2k $41.0k $41.0k 0.00% New
67 China Universal Asset Management Co., Ltd. 0.00% of their portfolio SHANGHAI, F4 6,6676.7k $26.8k $26.8k 0.00% Added +35 +35
68 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 6,2766.3k $24.0k $24.0k 0.00% Added +4.4k +4,443
69 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 6,0406.0k $24.3k $24.3k 0.00% Unchanged
70 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 5,0945.1k $20.5k $20.5k 0.00% Reduced -771 -771
71 FNY Investment Advisers, LLC 0.01% of their portfolio NEW YORK, NY 5,0005.0k $20.0k $20.0k 0.01% Unchanged
72 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 4,1874.2k $16.8k $16.8k 0.00% Unchanged
73 Brooklyn Investment Group 0.00% of their portfolio NEW YORK, NY 3,8523.9k $15.5k $15.5k 0.00% New
74 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 2,7652.8k $11.1k $11.1k 0.00% Added +2.4k +2,426
75 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 2,3872.4k $9.6k $9.6k 0.00% Unchanged
76 Legal & General Group Plc 0.00% of their portfolio London, X0 2,0322.0k $8.2k $8.2k 0.00% Reduced -495 -495
77 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 1,7351.7k $7.0k $7.0k 0.00% Unchanged
78 Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio SEOUL, M5 1,2821.3k $5.2k $5.2k 0.00% Added +303 +303
79 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 1,1971.2k $4.8k $4.8k 0.00% Added +1.0k +1,000
80 GF FUND MANAGEMENT CO. LTD. 0.00% of their portfolio GUANGZHOU, F4 820820 $3.3k $3.3k 0.00% Unchanged
81 EverSource Wealth Advisors, LLC 0.00% of their portfolio BIRMINGHAM, AL 657657 $2.6k $2.6k 0.00% Added +281 +281
82 Sterling Capital Management LLC 0.00% of their portfolio CHARLOTTE, NC 645645 $2.6k $2.6k 0.00% Added +618 +618
83 AMALGAMATED BANK 0.00% of their portfolio NEW YORK, NY 623623 $3.0k $3.0k 0.00% Unchanged
84 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 219219 $880 $880 0.00% New
85 Essential Partners LLC 0.00% of their portfolio RANCHO SANTA FE, CA 174174 $699 $699 0.00% First filing
86 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 107107 $430 $430 0.00% Added +101 +101
87 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 105105 $364 $364 0.00% New
88 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 100100 $402 $402 0.00% Unchanged
89 True Wealth Design, LLC 0.00% of their portfolio AKRON, OH 33 $13 $13 0.00% Reduced -16 -16
90 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 11 $4 $4 0.00% Unchanged
91 CONCOURSE FINANCIAL GROUP SECURITIES, INC. — of their portfolio BIRMINGHAM, AL 00 $0 $0 — Unchanged