Vault-13

AARDVARK THERAPEUTICS INC AARD

COM · Common Stock · CUSIP 002942100

72 institutional holders -7 vs Q1 2026
9,541,3499.5m shares reported held*
43.6% of all shares outstanding*
$55.0mreported value*
19 new 20 added 24 reduced 24 sold out net sold ≈ $3.7m (-644.3k 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 ($44.0k this quarter). Holder counts are more reliable. Shares outstanding: 21.9m as of 2026-07-31, 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 ≈ $5.76. Options: 2 managers hold calls ($87.0k notional), 3 hold puts ($670.5k).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

050100Q1 25: 28Q2 25: 36Q3 25: 49Q4 25: 66Q1 26: 79Q2 26: 7272Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q1 202528
Q2 202536
Q3 202549
Q4 202566
Q1 202679
Q2 202672

Buyers vs sellers

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

Bought or addedCut or sold out
50050Q2 25: 30 bought or addedQ2 25: 12 cut or sold outQ2 25Q3 25: 35 bought or addedQ3 25: 8 cut or sold outQ3 25Q4 25: 49 bought or addedQ4 25: 15 cut or sold outQ4 25Q1 26: 45 bought or addedQ1 26: 41 cut or sold outQ1 26Q2 26: 39 bought or addedQ2 26: 48 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q2 20253012
Q3 2025358
Q4 20254915
Q1 20264541
Q2 20263948

Calls vs puts

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

CallsPuts
$0$200k$400k$600k$800kQ3 25 calls: $0Q3 25 puts: $0Q3 25P/C —Q4 25 calls: $0Q4 25 puts: $0Q4 25P/C —Q1 26 calls: $0Q1 26 puts: $312.9kQ1 26P/C —Q2 26 calls: $87.0kQ2 26 puts: $670.5kQ2 26P/C 7.71
Numbers
QuarterCallsPutsP/C
Q3 2025$0$0—
Q4 2025$0$0—
Q1 2026$0$312.9k—
Q2 2026$87.0k$670.5k7.71

Biggest buyers

EcoR1 Capital, LLC New +396,194+396.2k
AQR CAPITAL MANAGEMENT LLC Added +345,754+345.8k
CANTOR FITZGERALD, L. P. Added +166,482+166.5k
RAYMOND JAMES FINANCIAL INC Added +68,394+68.4k
J. Goldman & Co LP New +40,500+40.5k
CITADEL ADVISORS LLC Added +40,389+40.4k
SUSQUEHANNA INTERNATIONAL GROUP, LLP New +24,025+24.0k
Point72 Asset Management, L.P. New +22,872+22.9k
JANE STREET GROUP, LLC New +22,464+22.5k
IEQ CAPITAL, LLC Added +21,897+21.9k

Biggest sellers

BlackRock, Inc. Reduced -605,526-605.5k
Tetragon Partners GP Ltd Sold out -316,621-316.6k
GEODE CAPITAL MANAGEMENT, LLC Reduced -159,605-159.6k
STATE STREET CORP Reduced -140,049-140.0k
UBS Group AG Reduced -122,249-122.2k
VANGUARD PORTFOLIO MANAGEMENT LLC Sold out -75,149-75.1k
RENAISSANCE TECHNOLOGIES LLC Sold out -70,792-70.8k
NORTHERN TRUST CORP Reduced -60,519-60.5k
TWO SIGMA INVESTMENTS, LP Reduced -54,978-55.0k
SILVERARC CAPITAL MANAGEMENT, LLC Sold out -33,684-33.7k

Biggest calls

EcoR1 Capital, LLC New $84.7k14.7k shares
SIMPLEX TRADING, LLC New $2.3k400 shares

Biggest puts

CITADEL ADVISORS LLC Added $340.4k59.1k shares
SIMPLEX TRADING, LLC Added $196.4k34.1k shares
JANE STREET GROUP, LLC Added $133.6k23.2k 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
Decheng Capital Global Life Sciences Fund IV, L.P. 13G · passive investor new · filed 2025-02-24 18.3% new 3.9m 2025-02-24
Lee Tien-Li 13G · exempt (held before listing) new · filed 2025-05-15 13.7% new 3.0m≈ $17.2m 2025-05-15
Tan Finian 13G · passive investor new · filed 2025-02-24 9.6% new 2.1m≈ $11.8m 2025-02-24
CITADEL ADVISORS LLC 13G · passive investor new · filed 2025-02-24 5.6% new 1.2m≈ $6.9m 2025-02-24

Insider purchases and sales since 1 Apr 2026

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
202Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 2 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 2 buyingQ3 25: 0 sellingQ3 25Q4 25: 2 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 1 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—0——
Q1 20252$424.7k0——
Q2 20250—0——
Q3 20252$305.6k0——
Q4 20252$144.6k0——
Q1 20260—0——
Q2 20260—0——
Q3 20260—1$394.9k$394.9k
DateInsiderTradeSharesPrice ValueTheir holding
2026-09-11 Sun Nelson Officer Sold plan 62,000 $5.18 $321.2k62.0k shares -64%
2026-09-10 Sun Nelson Officer Sold plan 14,754 $5.00 $73.8k14.8k shares -13%

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 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Decheng Capital LLC 3.08% of their portfolio MENLO PARK, CA 3,917,2993.9m $22.6m $22.6m 3.08% Unchanged
2 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 1,283,1661.3m $7.4m $7.4m 0.00% Added +40.4k +40,389
3 Laurion Capital Management LP 0.43% of their portfolio NEW YORK, NY 1,034,4591.0m $6.0m $6.0m 0.43% Unchanged
4 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 562,877562.9k $3.2m $3.2m 0.00% Added +8.8k +8,776
5 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 480,249480.2k $2.8m $2.8m 0.00% Added +345.8k +345,754
6 EcoR1 Capital, LLC 0.11% of their portfolio San Francisco, CA 396,194396.2k $2.3m $2.3m 0.11% New
7 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.00% of their portfolio Boston, MA 300,000300.0k $1.7m $1.7m 0.00% Unchanged
8 CANTOR FITZGERALD, L. P. 0.01% of their portfolio NEW YORK, NY 233,164233.2k $1.3m $1.3m 0.01% Added +166.5k +166,482
9 BlackRock, Inc. 0.00% of their portfolio New York, NY 187,045187.0k $1.1m $1.1m 0.00% Reduced -605.5k -605,526
10 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 149,844149.8k $863.5k $863.5k 0.00% Reduced -159.6k -159,605
11 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 108,377108.4k $624.3k $624.3k 0.00% Reduced -55.0k -54,978
12 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 79,28479.3k $456.7k $456.7k 0.00% Added +68.4k +68,394
13 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 75,17275.2k $433.0k $433.0k 0.00% Reduced -8.0k -8,038
14 Woodline Partners LP 0.00% of their portfolio San Francisco, CA 72,42972.4k $417.2k $417.2k 0.00% Unchanged
15 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 69,94869.9k $402.9k $402.9k 0.00% Reduced -28.4k -28,386
16 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 59,27359.3k $341.4k $341.4k 0.00% Reduced -140.0k -140,049
17 J. Goldman & Co LP 0.01% of their portfolio NEW YORK, NY 40,50040.5k $233.3k $233.3k 0.01% New
18 IEQ CAPITAL, LLC 0.00% of their portfolio Foster City, CA 38,38238.4k $221.1k $221.1k 0.00% Added +21.9k +21,897
19 UBS Group AG 0.00% of their portfolio ZURICH, V8 35,63935.6k $205.3k $205.3k 0.00% Reduced -122.2k -122,249
20 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 30,17730.2k $173.8k $173.8k 0.00% Added +12.6k +12,615
21 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 28,08028.1k $161.7k $161.7k 0.00% Reduced -60.5k -60,519
22 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 26,29926.3k $151.5k $151.5k 0.00% Reduced -20.0k -19,966
23 Cresset Asset Management, LLC 0.00% of their portfolio Chicago, IL 24,03324.0k $138.4k $138.4k 0.00% Reduced -19.2k -19,226
24 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 24,02524.0k $138.4k $138.4k 0.00% New
25 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.00% of their portfolio HOUSTON, TX 24,00024.0k $138.2k $138.2k 0.00% Reduced -3.0k -3,000
26 Point72 Asset Management, L.P. 0.00% of their portfolio STAMFORD, CT 22,87222.9k $131.7k $131.7k 0.00% New
27 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 22,46422.5k $129.4k $129.4k 0.00% New
28 Mariner, LLC 0.00% of their portfolio Overland Park, KS 21,78421.8k $125.4k $125.4k 0.00% New
29 SMITH, MOORE & CO. 0.01% of their portfolio CLAYTON, MO 20,00020.0k $115.2k $115.2k 0.01% New
30 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 19,88819.9k $114.6k $114.6k 0.00% Reduced -27 -27
31 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 19,07619.1k $109.9k $109.9k 0.00% New
32 FMR LLC 0.00% of their portfolio BOSTON, MA 18,90418.9k $108.9k $108.9k 0.00% Added +9.9k +9,946
33 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 15,91715.9k $91.7k $91.7k 0.00% Added +11.7k +11,674
34 PRELUDE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio NEW YORK, NY 12,42612.4k $71.6k $71.6k 0.01% Reduced -18.2k -18,211
35 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 12,24112.2k $70.5k $70.5k 0.00% Reduced -7.2k -7,163
36 MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio DENVER, CO 11,46411.5k $66.0k $66.0k 0.00% New
37 Cerity Partners LLC 0.00% of their portfolio NEW YORK, NY 10,77110.8k $62.0k $62.0k 0.00% New
38 WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio PLYMOUTH, MN 10,43410.4k $79.3k $79.3k 0.00% New
39 Abel Hall, LLC 0.01% of their portfolio BATON ROUGE, LA 10,06610.1k $58.0k $58.0k 0.01% New
40 Arax Advisory Partners 0.00% of their portfolio NEW YORK, NY 8,3748.4k $48.2k $48.2k 0.00% Added +8.3k +8,350
41 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 5,8935.9k $33.9k $33.9k 0.00% Unchanged
42 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 4,1504.2k $23.9k $23.9k 0.00% Unchanged
43 China Universal Asset Management Co., Ltd. 0.00% of their portfolio SHANGHAI, F4 3,4723.5k $20.0k $20.0k 0.00% Reduced -392 -392
44 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 2,5012.5k $14.4k $14.4k 0.00% Reduced -3.0k -2,966
45 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 2,2592.3k $13.0k $13.0k 0.00% Reduced -1.4k -1,362
46 Integrated Wealth Concepts LLC 0.00% of their portfolio WALTHAM, MA 1,9431.9k $11.2k $11.2k 0.00% New
47 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 1,7841.8k $9.2k $9.2k 0.00% Reduced -4.8k -4,833
48 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 1,3081.3k $7.5k $7.5k 0.00% Reduced -1.9k -1,926
49 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 1,2391.2k $7.1k $7.1k 0.00% Added +770 +770
50 Stone House Investment Management, LLC 0.00% of their portfolio TUNKHANNOCK, PA 1,0001.0k $5.8k $5.8k 0.00% Unchanged
51 Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio SEOUL, M5 976976 $5.6k $5.6k 0.00% Reduced -160 -160
52 Allworth Financial LP 0.00% of their portfolio FOLSOM, CA 813813 $4.7k $4.7k 0.00% Added +606 +606
53 EverSource Wealth Advisors, LLC 0.00% of their portfolio BIRMINGHAM, AL 774774 $4.5k $4.5k 0.00% Added +473 +473
54 FEDERATED HERMES, INC. 0.00% of their portfolio PITTSBURGH, PA 646646 $3.7k $3.7k 0.00% Reduced -437 -437
55 Essential Partners LLC 0.00% of their portfolio RANCHO SANTA FE, CA 509509 $2.9k $2.9k 0.00% Reduced -559 -559
56 GF FUND MANAGEMENT CO. LTD. 0.00% of their portfolio GUANGZHOU, F4 452452 $2.6k $2.6k 0.00% Reduced -31 -31
57 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 447447 $2.6k $2.6k 0.00% Added +426 +426
58 Hilton Head Capital Partners, LLC 0.00% of their portfolio HILTON HEAD ISLAND, SC 434434 $2.5k $2.5k 0.00% Unchanged
59 GAMMA Investing LLC 0.00% of their portfolio FOSTER CITY, CA 388388 $2.2k $2.2k 0.00% New
60 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 349349 $2.0k $2.0k 0.00% Added +321 +321
61 ROTHSCHILD INVESTMENT LLC 0.00% of their portfolio CHICAGO, IL 265265 $1.5k $1.5k 0.00% Added +188 +188
62 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 169169 $1.0k $1.0k 0.00% Reduced -11 -11
63 True Wealth Design, LLC 0.00% of their portfolio AKRON, OH 162162 $934 $934 0.00% Added +113 +113
64 Farther Finance Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 153153 $867 $867 0.00% Added +125 +125
65 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 7070 $403 $403 0.00% New
66 Fortitude Family Office, LLC 0.00% of their portfolio SCOTTSDALE, AZ 5656 $323 $323 0.00% New
67 HARBOUR INVESTMENTS, INC. 0.00% of their portfolio MADISON, WI 5353 $304 $304 0.00% Added +33 +33
68 Wealth Enhancement Trust Services, Inc. 0.00% of their portfolio SIOUX FALLS, SD 4848 $276 $276 0.00% New
69 Clearstead Advisors, LLC 0.00% of their portfolio CLEVELAND, OH 3939 $226 $226 0.00% New
70 SJS Investment Consulting Inc. 0.00% of their portfolio SYLVANIA, OH 1616 $93 $93 0.00% Added +14 +14
71 Transamerica Financial Advisors, LLC 0.00% of their portfolio CEDAR RAPIDS, IA 1414 $80 $80 0.00% Unchanged
72 JPL Wealth Management, LLC 0.00% of their portfolio GREENWOOD VILLAGE, CO 77 $41 $41 0.00% New