Vault-13

LEXEO THERAPEUTICS INC LXEO

COM · Common Stock · CUSIP 52886X107

89 institutional holders -2 vs Q4 2024
28,007,00028.0m shares reported held*
84.4% of all shares outstanding*
$100.0mreported value*
16 new 24 added 23 reduced 18 sold out net sold ≈ $5.3m (-1.5m 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 ($4.0k this quarter). Holder counts are more reliable. Shares outstanding: 33.2m as of 2025-03-21, 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 ≈ $3.57. Options: 3 managers hold calls ($111.3k notional), 4 hold puts ($87.1k).

Trends to Q1 2025

Institutional holders

Managers reporting a position, each quarter

050100Q4 23: 32Q1 24: 55Q2 24: 61Q3 24: 70Q4 24: 91Q1 25: 8989Q4 23Q1 24Q2 24Q3 24Q4 24Q1 25
Numbers
QuarterHolders
Q4 202332
Q1 202455
Q2 202461
Q3 202470
Q4 202491
Q1 202589

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 25
Numbers
QuarterBought or addedCut or sold out
Q1 20244510
Q2 20244022
Q3 20244915
Q4 20245420
Q1 20254041

Calls vs puts

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

CallsPuts
$0$50k$100k$150kQ2 24 calls: $0Q2 24 puts: $0Q2 24P/C —Q3 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 0.78
Numbers
QuarterCallsPutsP/C
Q2 2024$0$0—
Q3 2024$0$0—
Q4 2024$0$0—
Q1 2025$111.3k$87.1k0.78

Biggest buyers

Affinity Asset Advisors, LLC New +1,480,881+1.5m
MILLENNIUM MANAGEMENT LLC Added +929,538+929.5k
Avidity Partners Management LP New +645,000+645.0k
Point72 Asset Management, L.P. Added +347,908+347.9k
JANUS HENDERSON GROUP PLC Added +218,666+218.7k
TWO SIGMA ADVISERS, LP New +96,100+96.1k
MARSHALL WACE, LLP Added +63,215+63.2k
Ikarian Capital, LLC Added +50,728+50.7k
Shay Capital LLC New +43,296+43.3k
AQR CAPITAL MANAGEMENT LLC Added +39,627+39.6k

Biggest sellers

ADAGE CAPITAL PARTNERS GP, L.L.C. Reduced -1,971,662-2.0m
EVENTIDE ASSET MANAGEMENT, LLC Sold out -1,234,834-1.2m
D1 Capital Partners L.P. Reduced -1,225,248-1.2m
Altium Capital Management LLC Sold out -405,000-405.0k
Verition Fund Management LLC Reduced -295,037-295.0k
Opaleye Management Inc. Sold out -130,000-130.0k
WELLINGTON MANAGEMENT GROUP LLP Sold out -76,981-77.0k
Vestal Point Capital, LP Reduced -63,751-63.8k
Walleye Capital LLC Sold out -61,930-61.9k
SUPERSTRING CAPITAL MANAGEMENT LP Sold out -52,616-52.6k

Biggest calls

SIMPLEX TRADING, LLC New $111.0k32.1k shares
CITADEL ADVISORS LLC New $347100 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

CITADEL ADVISORS LLC New $44.4k12.8k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP New $42.7k12.3k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares
SIMPLEX TRADING, LLC New $0100 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), Longitude Capital Partners IV, LLC (3.8%, 2025-11-14)

Insider purchases and sales in Q1 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
404Q2 23: 0 buyingQ2 23: 0 sellingQ3 23: 0 buyingQ3 23: 0 sellingQ3 23Q4 23: 0 buyingQ4 23: 0 sellingQ1 24: 0 buyingQ1 24: 0 sellingQ1 24Q2 24: 0 buyingQ2 24: 1 sellingQ3 24: 0 buyingQ3 24: 1 sellingQ3 24Q4 24: 1 buyingQ4 24: 1 sellingQ1 25: 0 buyingQ1 25: 4 sellingQ1 25
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q2 20230—0——
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—
DateInsiderTradeSharesPrice ValueTheir holding
2025-02-19 Townsend Richard Nolan Chief Executive Officer, director Sold 4,326 $4.41 $19.1k4.3k shares -2%
2025-02-19 Adler Eric Chief Medical Officer Sold 2,359 $4.41 $10.4k2.4k shares -3%
2025-02-19 Robertson Jenny Chief Legal Officer Sold 2,101 $4.41 $9.3k2.1k shares -4%
2025-02-19 See Tai Sandi Chief Development Officer Sold 1,486 $4.41 $6.6k1.5k shares -3%

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, Q1 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 JANUS HENDERSON GROUP PLC 0.01% of their portfolio LONDON, X0 4,557,9204.6m $18.6m $18.6m 0.01% Added +218.7k +218,666
2 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 2,723,3632.7m $9.5m $9.5m 0.01% Unchanged
3 BlackRock, Inc. 0.00% of their portfolio New York, NY 1,842,2321.8m $6.4m $6.4m 0.00% Added +20.3k +20,266
4 Affinity Asset Advisors, LLC 0.80% of their portfolio NEW YORK, NY 1,480,8811.5m $5.1m $5.1m 0.80% New
5 Omega Fund Management, LLC 2.43% of their portfolio Boston, MA 1,184,6361.2m $4.1m $4.1m 2.43% Unchanged
6 Blackstone Inc. 0.02% of their portfolio NEW YORK, NY 1,158,6171.2m $4.0m $4.0m 0.02% Unchanged
7 Vestal Point Capital, LP 0.28% of their portfolio NEW YORK, NY 1,136,2491.1m $3.9m $3.9m 0.28% Reduced -63.8k -63,751
8 NOVO HOLDINGS A/S 0.30% of their portfolio HELLERUP, G7 1,122,5811.1m $3.9m $3.9m 0.30% Unchanged
9 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 1,099,2851.1m $3.8m $3.8m 0.00% Reduced -19.6k -19,594
10 Point72 Asset Management, L.P. 0.01% of their portfolio STAMFORD, CT 1,098,1431.1m $3.8m $3.8m 0.01% Added +347.9k +347,908
11 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 1,071,4891.1m $3.7m $3.7m 0.00% Added +929.5k +929,538
12 D1 Capital Partners L.P. 0.05% of their portfolio New York, NY 978,652978.7k $3.4m $3.4m 0.05% Reduced -1.2m -1,225,248
13 Frazier Life Sciences Management, L.P. 0.15% of their portfolio PALO ALTO, CA 955,515955.5k $3.3m $3.3m 0.15% Unchanged
14 Woodline Partners LP 0.02% of their portfolio San Francisco, CA 837,014837.0k $2.9m $2.9m 0.02% Reduced -21.7k -21,677
15 Avidity Partners Management LP 0.46% of their portfolio DALLAS, TX 645,000645.0k $2.2m $2.2m 0.46% New
16 Siren, L.L.C. 0.12% of their portfolio New York, NY 603,435603.4k $2.1m $2.1m 0.12% Unchanged
17 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 586,516586.5k $2.0m $2.0m 0.00% Added +19.1k +19,133
18 Ikarian Capital, LLC 0.62% of their portfolio DALLAS, TX 550,029550.0k $1.9m $1.9m 0.62% Added +50.7k +50,728
19 RA CAPITAL MANAGEMENT, L.P. 0.03% of their portfolio BOSTON, MA 546,554546.6k $1.9m $1.9m 0.03% Unchanged
20 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 469,728469.7k $1.6m $1.6m 0.00% Added +12.3k +12,325
21 Verition Fund Management LLC 0.01% of their portfolio GREENWICH, CT 414,863414.9k $1.4m $1.4m 0.01% Reduced -295.0k -295,037
22 DAFNA Capital Management LLC 0.37% of their portfolio LOS ANGELES, CA 378,083378.1k $1.3m $1.3m 0.37% Reduced -15.0k -15,000
23 Laurion Capital Management LP 0.07% of their portfolio NEW YORK, NY 260,228260.2k $903.0k $903.0k 0.07% Unchanged
24 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.00% of their portfolio Boston, MA 237,953238.0k $825.7k $825.7k 0.00% Reduced -2.0m -1,971,662
25 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 206,093206.1k $715.1k $715.1k 0.00% Reduced -8.2k -8,191
26 ADAR1 Capital Management, LLC 0.11% of their portfolio AUSTIN, TX 170,448170.4k $591.5k $591.5k 0.11% Added +943 +943
27 BOOTHBAY FUND MANAGEMENT, LLC 0.02% of their portfolio NEW YORK, NY 163,172163.2k $566.2k $566.2k 0.02% Added +15.4k +15,365
28 Privium Fund Management B.V. 0.14% of their portfolio AMSTERDAM, P7 160,198160.2k $555.9k $555.9k 0.14% Added +22.1k +22,083
29 PERCEPTIVE ADVISORS LLC 0.02% of their portfolio NEW YORK, NY 139,835139.8k $485.2k $485.2k 0.02% Unchanged
30 TWO SIGMA ADVISERS, LP 0.00% of their portfolio NEW YORK, NY 96,10096.1k $333.5k $333.5k 0.00% New
31 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 84,31684.3k $292.6k $292.6k 0.00% Added +9.5k +9,488
32 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 81,00981.0k $281.1k $281.1k 0.00% Added +63.2k +63,215
33 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 79,10879.1k $274.5k $274.5k 0.00% Reduced -11.8k -11,793
34 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 56,17456.2k $194.9k $194.9k 0.00% Reduced -7.7k -7,700
35 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 50,64450.6k $175.7k $175.7k 0.00% Reduced -16 -16
36 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 50,33750.3k $174.7k $174.7k 0.00% Added +39.6k +39,627
37 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 50,14750.1k $174.0k $174.0k 0.00% Added +39.0k +38,999
38 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 46,66746.7k $161.9k $161.9k 0.00% Reduced -8.5k -8,494
39 Shay Capital LLC 0.04% of their portfolio NEW YORK, NY 43,29643.3k $150.2k $150.2k 0.04% New
40 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 40,21140.2k $139.5k $139.5k 0.00% First filing
41 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.00% of their portfolio HOUSTON, TX 38,40038.4k $133.2k $133.2k 0.00% Reduced -26.6k -26,600
42 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 36,62436.6k $127.1k $127.1k 0.00% New
43 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 36,05036.0k $125.1k $125.1k 0.00% First filing
44 PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio BOSTON, MA 34,74134.7k $120.6k $120.6k 0.00% New
45 UBS Group AG 0.00% of their portfolio ZURICH, V8 32,08232.1k $111.3k $111.3k 0.00% Reduced -19.0k -18,972
46 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 30,19230.2k $104.8k $104.8k 0.00% Added +5.0k +4,995
47 ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio Boston, MA 24,64824.6k $85.0k $85.0k 0.00% New
48 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 23,32723.3k $80.9k $80.9k 0.00% Reduced -1.6k -1,597
49 Ground Swell Capital, LLC 0.18% of their portfolio FOLLY BEACH, SC 23,12323.1k $80.2k $80.2k 0.18% New
50 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 21,77021.8k $75.5k $75.5k 0.00% Reduced -8.6k -8,606
51 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 20,30020.3k $70.4k $70.4k 0.00% New
52 Soltis Investment Advisors LLC 0.01% of their portfolio ST. GEORGE, UT 20,00020.0k $69.4k $69.4k 0.01% New
53 Pale Fire Capital SE 0.01% of their portfolio Prague, 2N 18,90018.9k $65.6k $65.6k 0.01% Added +2.8k +2,800
54 CAXTON CORP 1.22% of their portfolio Princeton, NJ 17,85117.9k $61.9k $61.9k 1.22% Unchanged
55 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 15,97016.0k $55.4k $55.4k 0.00% Unchanged
56 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 14,10114.1k $48.9k $48.9k 0.00% Added +624 +624
57 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 13,78013.8k $47.8k $47.8k 0.00% Added +409 +409
58 Corton Capital Inc. 0.15% of their portfolio Carrying Place, A6 12,71112.7k $44.1k $44.1k 0.15% Reduced -1.1k -1,060
59 Corebridge Financial, Inc. 0.00% of their portfolio HOUSTON, TX 11,54411.5k $40.1k $40.1k 0.00% Reduced -171 -171
60 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 11,40911.4k $39.6k $39.6k 0.00% Added +253 +253
61 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 11,37011.4k $39.5k $39.5k 0.00% Reduced -1.9k -1,856
62 INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio WEST PALM BEACH, FL 11,34011.3k $39.4k $39.4k 0.00% Reduced -225 -225
63 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 10,42510.4k $37.0k $37.0k 0.00% Unchanged
64 FMR LLC 0.00% of their portfolio BOSTON, MA 9,8649.9k $34.2k $34.2k 0.00% Added +7.9k +7,861
65 China Universal Asset Management Co., Ltd. 0.00% of their portfolio SHANGHAI, F4 6,6326.6k $23.0k $23.0k 0.00% Reduced -379 -379
66 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 6,0406.0k $21.0k $21.0k 0.00% Unchanged
67 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 5,8655.9k $20.4k $20.4k 0.00% Added +4.2k +4,210
68 Allostery Investments LP 0.03% of their portfolio Stamford, CT 5,0545.1k $17.5k $17.5k 0.03% Unchanged
69 FNY Investment Advisers, LLC 0.01% of their portfolio NEW YORK, NY 5,0005.0k $17.0k $17.0k 0.01% New
70 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 4,1874.2k $14.5k $14.5k 0.00% Unchanged
71 CWM, LLC 0.00% of their portfolio OMAHA, NE 4,1354.1k $14.0k $14.0k 0.00% Added +3.4k +3,350
72 Legal & General Group Plc 0.00% of their portfolio London, X0 2,5272.5k $8.8k $8.8k 0.00% Unchanged
73 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 2,3872.4k $8.3k $8.3k 0.00% Unchanged
74 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 1,8331.8k $6.0k $6.0k 0.00% Added +868 +868
75 COMERICA BANK 0.00% of their portfolio DALLAS, TX 1,7611.8k $6.1k $6.1k 0.00% New
76 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 1,7351.7k $6.0k $6.0k 0.00% Unchanged
77 Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio SEOUL, M5 979979 $4.0k $4.0k 0.00% Reduced -123 -123
78 GF FUND MANAGEMENT CO. LTD. 0.00% of their portfolio GUANGZHOU, F4 820820 $2.8k $2.8k 0.00% Added +126 +126
79 AMALGAMATED BANK 0.00% of their portfolio NEW YORK, NY 623623 $2.0k $2.0k 0.00% Unchanged
80 EverSource Wealth Advisors, LLC 0.00% of their portfolio BIRMINGHAM, AL 376376 $1.3k $1.3k 0.00% New
81 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 339339 $1.2k $1.2k 0.00% Reduced -57 -57
82 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 197197 $684 $684 0.00% Unchanged
83 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 100100 $347 $347 0.00% Unchanged
84 COLDSTREAM CAPITAL MANAGEMENT INC 0.00% of their portfolio BELLEVUE, WA 9393 $323 $323 0.00% New
85 Sterling Capital Management LLC 0.00% of their portfolio CHARLOTTE, NC 2727 $94 $94 0.00% Unchanged
86 True Wealth Design, LLC 0.00% of their portfolio AKRON, OH 1919 $66 $66 0.00% New
87 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 66 $21 $21 0.00% Unchanged
88 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 11 $3 $3 0.00% New
89 CONCOURSE FINANCIAL GROUP SECURITIES, INC. — of their portfolio BIRMINGHAM, AL 00 $0 $0 — Unchanged