Vault-13

PYXIS ONCOLOGY INC PYXS

COMMON STOCK · Common Stock · CUSIP 747324101

75 institutional holders -15 vs Q1 2025
27,544,16627.5m shares reported held*
44.4% of all shares outstanding*
$30.3mreported value*
15 new 21 added 23 reduced 30 sold out net sold ≈ $3.0m (-2.7m 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. Holder counts are more reliable. Shares outstanding: 62.0m as of 2025-08-13, 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 ≈ $1.10. Options: 2 managers hold calls ($15.6k notional), 3 hold puts ($2.0k).

Trends to Q2 2025

Institutional holders

Managers reporting a position, each quarter

050100Q3 22: 38Q4 22: 32Q1 23: 48Q2 23: 49Q3 23: 55Q4 23: 52Q1 24: 72Q2 24: 81Q3 24: 93Q4 24: 100Q1 25: 90Q2 25: 7575Q3 22Q2 23Q1 24Q4 24Q2 25
Numbers
QuarterHolders
Q3 202238
Q4 202232
Q1 202348
Q2 202349
Q3 202355
Q4 202352
Q1 202472
Q2 202481
Q3 202493
Q4 2024100
Q1 202590
Q2 202575

Buyers vs sellers

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

Bought or addedCut or sold out
1000100Q3 23: 29 bought or addedQ3 23: 20 cut or sold outQ4 23: 17 bought or addedQ4 23: 23 cut or sold outQ4 23Q1 24: 52 bought or addedQ1 24: 14 cut or sold outQ2 24: 43 bought or addedQ2 24: 37 cut or sold outQ2 24Q3 24: 50 bought or addedQ3 24: 26 cut or sold outQ4 24: 48 bought or addedQ4 24: 38 cut or sold outQ4 24Q1 25: 34 bought or addedQ1 25: 43 cut or sold outQ2 25: 36 bought or addedQ2 25: 53 cut or sold outQ2 25
Numbers
QuarterBought or addedCut or sold out
Q3 20232920
Q4 20231723
Q1 20245214
Q2 20244337
Q3 20245026
Q4 20244838
Q1 20253443
Q2 20253653

Calls vs puts

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

CallsPuts
$0$1m$2m$3mQ3 24 calls: $2.0mQ3 24 puts: $278.5kQ3 24P/C 0.14Q4 24 calls: $1.6mQ4 24 puts: $80.1kQ4 24P/C 0.05Q1 25 calls: $40.6kQ1 25 puts: $35.9kQ1 25P/C 0.88Q2 25 calls: $15.6kQ2 25 puts: $2.0kQ2 25P/C 0.13
Numbers
QuarterCallsPutsP/C
Q3 2024$2.0m$278.5k0.14
Q4 2024$1.6m$80.1k0.05
Q1 2025$40.6k$35.9k0.88
Q2 2025$15.6k$2.0k0.13

Biggest buyers

TANG CAPITAL MANAGEMENT LLC Added +1,400,000+1.4m
MILLENNIUM MANAGEMENT LLC Added +1,054,584+1.1m
JANE STREET GROUP, LLC New +336,084+336.1k
SCHULHOFF & CO INC Added +153,000+153.0k
MARSHALL WACE, LLP New +147,771+147.8k
Y-Intercept (Hong Kong) Ltd New +133,047+133.0k
ROYAL BANK OF CANADA Added +76,071+76.1k
GOLDMAN SACHS GROUP INC Added +63,444+63.4k
BRIDGEWAY CAPITAL MANAGEMENT, LLC Added +61,500+61.5k
Qube Research & Technologies Ltd Added +57,935+57.9k

Biggest sellers

BlackRock, Inc. Reduced -2,345,169-2.3m
STATE STREET CORP Reduced -746,143-746.1k
Ikarian Capital, LLC Sold out -613,253-613.3k
GEODE CAPITAL MANAGEMENT, LLC Reduced -598,135-598.1k
VANGUARD GROUP INC Reduced -287,332-287.3k
MORGAN STANLEY Reduced -286,308-286.3k
NORTHERN TRUST CORP Reduced -271,500-271.5k
BOOTHBAY FUND MANAGEMENT, LLC Sold out -181,042-181.0k
RENAISSANCE TECHNOLOGIES LLC Reduced -164,314-164.3k
Nuveen, LLC Sold out -127,304-127.3k

Biggest calls

GROUP ONE TRADING LLC Reduced $15.6k14.2k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

GROUP ONE TRADING LLC Reduced $2.0k1.8k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares
SIMPLEX TRADING, LLC Reduced $0300 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
GordonMD Global Investments LP 13G · passive investor -1.1 pts · filed 2026-10-09 16.4% -1.1 pts 20.4m≈ $45.3m 2026-10-09
Sullivan Lara 13D · may seek influence +0.9 pts · filed 2025-04-02
Stated purposeItem 4 of the Schedule 13D is hereby amended and supplemented as follows: The response to Item 3 of this Amendment No. 5 is incorporated by reference herein. Full filing
11.2% +0.9 pts 7.5m≈ $22.7m 2025-04-02
BIOTECHNOLOGY VALUE FUND L P 13G · passive investor new · filed 2026-07-10 10.0% new 8.3m≈ $25.1m 2026-07-10
Laurion Capital Management LP 13G · institution filed 2026-02-09 7.7% 4.8m≈ $14.4m 2026-02-09
Coastlands Capital LP 13G · institution new · filed 2026-10-05 5.4% new 6.4m≈ $15.0m 2026-10-05

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
202Q3 23: 2 buyingQ3 23: 1 sellingQ4 23: 0 buyingQ4 23: 0 sellingQ4 23Q1 24: 0 buyingQ1 24: 0 sellingQ2 24: 0 buyingQ2 24: 0 sellingQ2 24Q3 24: 0 buyingQ3 24: 0 sellingQ4 24: 1 buyingQ4 24: 0 sellingQ4 24Q1 25: 0 buyingQ1 25: 0 sellingQ2 25: 0 buyingQ2 25: 1 sellingQ2 25
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20232$73.5k1$81.4k—
Q4 20230—0——
Q1 20240—0——
Q2 20240—0——
Q3 20240—0——
Q4 20241$174.4k0——
Q1 20250—0——
Q2 20250—1$15.9k$15.9k
DateInsiderTradeSharesPrice ValueTheir holding
2025-04-21 HUMPHREY RACHEL Director Sold plan 13,896 $1.03 $14.3k13.9k shares -15%
2025-04-17 HUMPHREY RACHEL Director Sold plan 200 $0.97 $194200 shares -<1%
2025-04-14 HUMPHREY RACHEL Director Sold plan 1,400 $0.97 $1.4k1.4k 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 Pfizer Inc 1.34% of their portfolio New York, NY 7,032,7707.0m $7.7m $7.7m 1.34% Unchanged
2 Laurion Capital Management LP 0.46% of their portfolio NEW YORK, NY 3,625,9743.6m $4.0m $4.0m 0.46% Unchanged
3 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 3,539,8603.5m $3.9m $3.9m 0.00% Added +1.1m +1,054,584
4 TANG CAPITAL MANAGEMENT LLC 0.14% of their portfolio SAN DIEGO, CA 2,500,0002.5m $2.8m $2.8m 0.14% Added +1.4m +1,400,000
5 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 2,149,3962.1m $2.4m $2.4m 0.00% Reduced -287.3k -287,332
6 Palo Alto Investors LP 0.24% of their portfolio PALO ALTO, CA 1,037,4211.0m $1.1m $1.1m 0.24% Unchanged
7 BlackRock, Inc. 0.00% of their portfolio New York, NY 926,805926.8k $1.0m $1.0m 0.00% Reduced -2.3m -2,345,169
8 Aberdeen Group plc 0.00% of their portfolio EDINBURGH, X0 913,045913.0k $1.0m $1.0m 0.00% Unchanged
9 683 Capital Management, LLC 0.06% of their portfolio NEW YORK, NY 545,000545.0k $599.5k $599.5k 0.06% Reduced -5.0k -5,000
10 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 510,963511.0k $562.2k $562.2k 0.00% Reduced -598.1k -598,135
11 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 417,822417.8k $459.6k $459.6k 0.00% Reduced -164.3k -164,314
12 UBS Group AG 0.00% of their portfolio ZURICH, V8 396,096396.1k $435.7k $435.7k 0.00% Reduced -748 -748
13 PIER 88 INVESTMENT PARTNERS LLC 0.08% of their portfolio SAN FRANCISCO, CA 367,170367.2k $403.9k $403.9k 0.08% Reduced -23.8k -23,790
14 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 336,084336.1k $369.7k $369.7k 0.00% New
15 Decheng Capital LLC 0.09% of their portfolio MENLO PARK, CA 326,810326.8k $359.5k $359.5k 0.09% Unchanged
16 SCHULHOFF & CO INC 0.13% of their portfolio CINCINNATI, OH 275,000275.0k $302.5k $302.5k 0.13% Added +153.0k +153,000
17 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 224,274224.3k $246.7k $246.7k 0.00% Added +63.4k +63,444
18 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 186,055186.1k $204.7k $204.7k 0.00% Reduced -746.1k -746,143
19 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 172,730172.7k $190.0k $190.0k 0.00% Added +76.1k +76,071
20 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 165,044165.0k $181.5k $181.5k 0.00% Reduced -107.7k -107,725
21 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 160,174160.2k $176.2k $176.2k 0.00% Reduced -286.3k -286,308
22 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 147,771147.8k $162.5k $162.5k 0.00% New
23 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.00% of their portfolio HOUSTON, TX 142,295142.3k $156.5k $156.5k 0.00% Added +61.5k +61,500
24 Y-Intercept (Hong Kong) Ltd 0.00% of their portfolio HONG KONG, K3 133,047133.0k $146.4k $146.4k 0.00% New
25 NewEdge Wealth, LLC 0.00% of their portfolio STAMFORD, CT 116,006116.0k $124.1k $124.1k 0.00% Unchanged
26 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 114,359114.4k $125.8k $125.8k 0.00% Added +49.5k +49,471
27 Qube Research & Technologies Ltd 0.00% of their portfolio LONDON, X0 103,063103.1k $113.4k $113.4k 0.00% Added +57.9k +57,935
28 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 102,216102.2k $112.4k $112.4k 0.00% Reduced -271.5k -271,500
29 FMR LLC 0.00% of their portfolio BOSTON, MA 94,84694.8k $104.3k $104.3k 0.00% Added +8.2k +8,191
30 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 86,76386.8k $95.4k $95.4k 0.00% Added +46.5k +46,493
31 Cable Car Capital, LP 0.03% of their portfolio SAN FRANCISCO, CA 61,60661.6k $67.8k $67.8k 0.03% Unchanged
32 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 61,15561.2k $67.0k $67.0k 0.00% Added +17.9k +17,905
33 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 50,66850.7k $55.0k $55.0k 0.00% New
34 UNIVERSITY OF CHICAGO 0.05% of their portfolio CHICAGO, IL 48,73148.7k $53.6k $53.6k 0.05% Unchanged
35 Jain Global LLC 0.00% of their portfolio NEW YORK, NY 48,64948.6k $53.5k $53.5k 0.00% New
36 Velan Capital Investment Management LP 0.04% of their portfolio ALPHARETTA, GA 40,00040.0k $44.0k $44.0k 0.04% New
37 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 36,51636.5k $40.2k $40.2k 0.00% Unchanged
38 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 36,38036.4k $40.0k $40.0k 0.00% New
39 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 35,42835.4k $39.0k $39.0k 0.00% Added +20.5k +20,514
40 Cetera Investment Advisers 0.00% of their portfolio SCHAUMBURG, IL 28,76028.8k $31.6k $31.6k 0.00% Added +900 +900
41 Catalyst Funds Management Pty Ltd 0.01% of their portfolio SYDNEY NSW, C3 23,20023.2k $25.5k $25.5k 0.01% New
42 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 22,06922.1k $24.3k $24.3k 0.00% Reduced -18.3k -18,254
43 Point72 Asia (Singapore) Pte. Ltd. 0.00% of their portfolio SINGAPORE, U0 19,22819.2k $21.2k $21.2k 0.00% New
44 ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio Boston, MA 18,94218.9k $20.0k $20.0k 0.00% Reduced -65.2k -65,180
45 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 17,72117.7k $19.5k $19.5k 0.00% Reduced -4.7k -4,658
46 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 14,65714.7k $16.1k $16.1k 0.00% Added +3.5k +3,499
47 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 14,19914.2k $15.6k $15.6k 0.00% Reduced -1.9k -1,900
48 Hudson Bay Capital Management LP 0.00% of their portfolio STAMFORD, CT 13,79013.8k $15.2k $15.2k 0.00% New
49 DRW Securities, LLC 0.00% of their portfolio CHICAGO, IL 13,04213.0k $14.3k $14.3k 0.00% New
50 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 12,61512.6k $13.0k $13.0k 0.00% Added +3.8k +3,810
51 China Universal Asset Management Co., Ltd. 0.00% of their portfolio SHANGHAI, F4 12,44212.4k $13.7k $13.7k 0.00% Added +514 +514
52 Quadrature Capital Ltd 0.00% of their portfolio LONDON, X0 12,33412.3k $13.6k $13.6k 0.00% New
53 MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio DENVER, CO 10,00410.0k $11.0k $11.0k 0.00% New
54 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 8,9278.9k $9.8k $9.8k 0.00% Reduced -26.1k -26,113
55 CWM, LLC 0.00% of their portfolio OMAHA, NE 6,5366.5k $7.0k $7.0k 0.00% Added +3.1k +3,150
56 Winthrop Capital Management, LLC 0.00% of their portfolio Carmel, IN 6,0006.0k $7.0k $7.0k 0.00% Unchanged
57 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 4,8544.9k $5.3k $5.3k 0.00% Reduced -49.3k -49,255
58 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 3,2313.2k $3.6k $3.6k 0.00% New
59 Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio SEOUL, M5 2,3932.4k $2.6k $2.6k 0.00% Added +403 +403
60 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 2,0682.1k $2.3k $2.3k 0.00% Reduced -26.1k -26,067
61 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 1,8331.8k $2.0k $2.0k 0.00% Reduced -1.8k -1,834
62 JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio DES PERES, MO 1,5001.5k $1.6k $1.6k 0.00% Unchanged
63 GF FUND MANAGEMENT CO. LTD. 0.00% of their portfolio GUANGZHOU, F4 1,4291.4k $1.6k $1.6k 0.00% Unchanged
64 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 961961 $1.1k $1.1k 0.00% Added +661 +661
65 Physician Wealth Advisors, Inc. 0.00% of their portfolio MIDVALE, UT 943943 $1.0k $1.0k 0.00% New
66 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 699699 $769 $769 0.00% Reduced -29.2k -29,191
67 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 602602 $662 $662 0.00% Reduced -2.4k -2,408
68 EverSource Wealth Advisors, LLC 0.00% of their portfolio BIRMINGHAM, AL 591591 $650 $650 0.00% Added +107 +107
69 True Wealth Design, LLC 0.00% of their portfolio AKRON, OH 276276 $304 $304 0.00% Added +269 +269
70 NewEdge Advisors, LLC 0.00% of their portfolio NEW ORLEANS, LA 250250 $275 $275 0.00% Unchanged
71 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 6464 $70 $70 0.00% Unchanged
72 NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 0.00% of their portfolio MILWAUKEE, WI 1212 $13 $13 0.00% Unchanged
73 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 11 $1 $1 0.00% Reduced -1 -1
74 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 11 $1 $1 0.00% Reduced -2 -2
75 CONCOURSE FINANCIAL GROUP SECURITIES, INC. — of their portfolio BIRMINGHAM, AL 00 $0 $0 — Unchanged