Vault-13

ANTERIX INC ATEX

COM · Common Stock · CUSIP 03676C100

130 institutional holders +14 vs Q2 2024
15,798,46415.8m shares reported held*
84.9% of all shares outstanding*
$595.0mreported value*
25 new 43 added 37 reduced 12 sold out net bought ≈ $34.5m (+916.3k 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. Holder counts are more reliable. Shares outstanding: 18.6m as of 2024-11-08, 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 ≈ $37.66. Options: 4 managers hold calls ($1.2m notional), 3 hold puts ($109.2k).

Trends to Q3 2024

Institutional holders

Managers reporting a position, each quarter

050100150Q3 22: 100Q4 22: 93Q1 23: 89Q2 23: 96Q3 23: 99Q4 23: 94Q1 24: 99Q2 24: 116Q3 24: 130130Q3 22Q1 23Q3 23Q1 24Q3 24
Numbers
QuarterHolders
Q3 2022100
Q4 202293
Q1 202389
Q2 202396
Q3 202399
Q4 202394
Q1 202499
Q2 2024116
Q3 2024130

Buyers vs sellers

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

Bought or addedCut or sold out
1000100Q4 22: 40 bought or addedQ4 22: 39 cut or sold outQ1 23: 41 bought or addedQ1 23: 29 cut or sold outQ1 23Q2 23: 53 bought or addedQ2 23: 29 cut or sold outQ3 23: 41 bought or addedQ3 23: 55 cut or sold outQ3 23Q4 23: 43 bought or addedQ4 23: 46 cut or sold outQ1 24: 38 bought or addedQ1 24: 47 cut or sold outQ1 24Q2 24: 64 bought or addedQ2 24: 42 cut or sold outQ3 24: 68 bought or addedQ3 24: 49 cut or sold outQ3 24
Numbers
QuarterBought or addedCut or sold out
Q4 20224039
Q1 20234129
Q2 20235329
Q3 20234155
Q4 20234346
Q1 20243847
Q2 20246442
Q3 20246849

Calls vs puts

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

CallsPuts
$0$2m$4m$6mQ4 23 calls: $1.5mQ4 23 puts: $419.2kQ4 23P/C 0.28Q1 24 calls: $1.5mQ1 24 puts: $94.1kQ1 24P/C 0.06Q2 24 calls: $1.2mQ2 24 puts: $4.2mQ2 24P/C 3.38Q3 24 calls: $1.2mQ3 24 puts: $109.2kQ3 24P/C 0.09
Numbers
QuarterCallsPutsP/C
Q4 2023$1.5m$419.2k0.28
Q1 2024$1.5m$94.1k0.06
Q2 2024$1.2m$4.2m3.38
Q3 2024$1.2m$109.2k0.09

Biggest buyers

D. E. Shaw & Co., Inc. Added +197,970+198.0k
VANGUARD GROUP INC Added +161,597+161.6k
Qube Research & Technologies Ltd Added +155,222+155.2k
Nuveen Asset Management, LLC Added +112,696+112.7k
FMR LLC Added +108,683+108.7k
Cubist Systematic Strategies, LLC Added +85,047+85.0k
GARNET EQUITY CAPITAL HOLDINGS, INC. Added +83,000+83.0k
JANE STREET GROUP, LLC Added +71,059+71.1k
Balyasny Asset Management L.P. Added +52,431+52.4k
MILLENNIUM MANAGEMENT LLC Added +48,639+48.6k

Biggest sellers

STONEHILL CAPITAL MANAGEMENT LLC Reduced -114,553-114.6k
Roubaix Capital, LLC Reduced -69,600-69.6k
ExodusPoint Capital Management, LP Sold out -56,325-56.3k
272 Capital LP Sold out -52,308-52.3k
Jefferies Financial Group Inc. Reduced -35,000-35.0k
RENAISSANCE TECHNOLOGIES LLC Sold out -33,700-33.7k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced -22,667-22.7k
BOOTHBAY FUND MANAGEMENT, LLC Reduced -21,549-21.5k
Heard Capital LLC Reduced -20,552-20.6k
SG Americas Securities, LLC Reduced -18,006-18.0k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP New $824.8k21.9k shares
CITADEL ADVISORS LLC Reduced $365.3k9.7k shares
SIMPLEX TRADING, LLC Reduced $7.0k200 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

CITADEL ADVISORS LLC Reduced $94.2k2.5k shares
SIMPLEX TRADING, LLC Unchanged $15.0k400 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
Owl Creek Asset Management, L.P. 13D · may seek influence filed 2026-07-08 28.5% 5.6m≈ $571.5m 2026-07-08
T. Rowe Price Investment Management, Inc. 13G · institution new · filed 2026-07-08 12.0% new 2.3m≈ $241.7m 2026-07-08
Heard Capital LLC 13D · may seek influence filed 2025-03-05
Stated purposeItem 4 is hereby amended to add the following: On February 28, 2025, Mr. Heard elected to begin receiving stock compensation under the Issuer's non-employee director compensation program. Full filing
 9.4% 1.7m≈ $179.3m 2025-03-05

Fell to 5% or below in the last year: BlackRock, Inc. (4.7%, 2026-10-27), VANGUARD GROUP INC (5.0%, 2026-01-30)

Insider purchases and sales in Q3 2024

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 22: 0 buyingQ4 22: 2 sellingQ1 23: 2 buyingQ1 23: 1 sellingQ1 23Q2 23: 0 buyingQ2 23: 1 sellingQ3 23: 1 buyingQ3 23: 0 sellingQ3 23Q4 23: 1 buyingQ4 23: 1 sellingQ1 24: 0 buyingQ1 24: 0 sellingQ1 24Q2 24: 0 buyingQ2 24: 1 sellingQ3 24: 0 buyingQ3 24: 0 sellingQ3 24
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20220—2$345.5k—
Q1 20232$77.8k1$1.4m—
Q2 20230—1$251.2k—
Q3 20231$29.9k0——
Q4 20231$4.1m1$30.0k—
Q1 20240—0——
Q2 20240—1$1.6m—
Q3 20240—0——

None reported in Q3 2024.

Holders, Q3 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Owl Creek Asset Management, L.P. 29.77% of their portfolio New York, NY 5,411,7765.4m $203.8m $203.8m 29.77% Unchanged
2 Heard Capital LLC 3.70% of their portfolio Chicago, IL 1,752,1381.8m $66.0m $66.0m 3.70% Reduced -20.6k -20,552
3 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 1,000,1431.0m $37.7m $37.7m 0.00% Added +161.6k +161,597
4 BlackRock, Inc. 0.00% of their portfolio New York, NY 995,627995.6k $37.5m $37.5m 0.00% First filing
5 STONEHILL CAPITAL MANAGEMENT LLC 13.31% of their portfolio NEW YORK, NY 589,851589.9k $22.2m $22.2m 13.31% Reduced -114.6k -114,553
6 QVT Financial LP 1.63% of their portfolio New York, NY 503,941503.9k $19.0m $19.0m 1.63% Unchanged
7 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 402,090402.1k $15.1m $15.1m 0.00% Added +9.5k +9,537
8 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 355,484355.5k $13.4m $13.4m 0.00% Reduced -8.3k -8,259
9 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 348,666348.7k $13.1m $13.1m 0.00% Reduced -11.6k -11,568
10 Clearbridge Investments, LLC 0.01% of their portfolio NEW YORK, NY 303,126303.1k $11.4m $11.4m 0.01% Reduced -8.6k -8,575
11 GARNET EQUITY CAPITAL HOLDINGS, INC. 7.13% of their portfolio NEW YORK, NY 291,702291.7k $11.0m $11.0m 7.13% Added +83.0k +83,000
12 D. E. Shaw & Co., Inc. 0.01% of their portfolio New York, NY 275,856275.9k $10.4m $10.4m 0.01% Added +198.0k +197,970
13 FMR LLC 0.00% of their portfolio BOSTON, MA 250,955251.0k $9.5m $9.5m 0.00% Added +108.7k +108,683
14 Price Jennifer C. 9.64% of their portfolio NEW YORK, NY 230,000230.0k $8.7m $8.7m 9.64% Reduced -10.0k -10,000
15 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 199,614199.6k $7.5m $7.5m 0.01% Added +32.1k +32,093
16 Qube Research & Technologies Ltd 0.01% of their portfolio LONDON, X0 159,112159.1k $6.0m $6.0m 0.01% Added +155.2k +155,222
17 TUDOR INVESTMENT CORP ET AL 0.06% of their portfolio STAMFORD, CT 151,712151.7k $5.7m $5.7m 0.06% Reduced -15.5k -15,474
18 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 146,803146.8k $5.5m $5.5m 0.00% Added +112.7k +112,696
19 GABELLI FUNDS LLC 0.04% of their portfolio Rye, NY 140,422140.4k $5.3m $5.3m 0.04% Unchanged
20 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 133,217133.2k $5.0m $5.0m 0.00% Reduced -3.2k -3,157
21 JANE STREET GROUP, LLC 0.01% of their portfolio NEW YORK, NY 128,892128.9k $4.9m $4.9m 0.01% Added +71.1k +71,059
22 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 122,807122.8k $4.6m $4.6m 0.00% Reduced -15.0k -15,036
23 GAMCO INVESTORS, INC. ET AL 0.04% of their portfolio GREENWICH, CT 101,770101.8k $3.8m $3.8m 0.04% Reduced -7.5k -7,500
24 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 99,70199.7k $3.8m $3.8m 0.00% Reduced -12.1k -12,086
25 KIRR MARBACH & CO LLC /IN/ 0.81% of their portfolio COLUMBUS, IN 96,29196.3k $3.6m $3.6m 0.81% Reduced -484 -484
26 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 95,29195.3k $3.6m $3.6m 0.00% Added +36.6k +36,639
27 Cubist Systematic Strategies, LLC 0.05% of their portfolio STAMFORD, CT 94,19894.2k $3.5m $3.5m 0.05% Added +85.0k +85,047
28 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 79,08979.1k $3.0m $3.0m 0.00% Added +7.1k +7,144
29 Roubaix Capital, LLC 1.60% of their portfolio DENVER, CO 77,03277.0k $2.9m $2.9m 1.60% Reduced -69.6k -69,600
30 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 73,54773.5k $2.8m $2.8m 0.00% Added +8.0k +8,043
31 Trexquant Investment LP 0.03% of their portfolio STAMFORD, CT 71,20071.2k $2.7m $2.7m 0.03% Added +24.2k +24,172
32 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 67,66467.7k $2.5m $2.5m 0.00% Added +44.2k +44,184
33 Jefferies Financial Group Inc. 0.04% of their portfolio NEW YORK, NY 65,00065.0k $2.4m $2.4m 0.04% Reduced -35.0k -35,000
34 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 64,31364.3k $2.4m $2.4m 0.00% Added +48.6k +48,639
35 Balyasny Asset Management L.P. 0.01% of their portfolio Chicago, IL 61,08261.1k $2.3m $2.3m 0.01% Added +52.4k +52,431
36 LUMINUS MANAGEMENT LLC 1.24% of their portfolio HOUSTON, TX 58,24658.2k $2.2m $2.2m 1.24% Added +28.9k +28,927
37 Teton Advisors, Inc. 0.86% of their portfolio Rye, NY 51,00051.0k $1.9m $1.9m 0.86% Reduced -2.0k -2,000
38 HRT FINANCIAL LP 0.01% of their portfolio NEW YORK, NY 42,93342.9k $1.6m $1.6m 0.01% Added +8.6k +8,634
39 Engineers Gate Manager LP 0.03% of their portfolio NEW YORK, NY 40,12340.1k $1.5m $1.5m 0.03% Added +26.0k +26,012
40 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 38,99839.0k $1.5m $1.5m 0.00% Reduced -11.6k -11,607
41 Jump Financial, LLC 0.03% of their portfolio Chicago, IL 38,85038.9k $1.5m $1.5m 0.03% New
42 WOODMONT INVESTMENT COUNSEL LLC 0.10% of their portfolio NASHVILLE, TN 34,54534.5k $1.3m $1.3m 0.10% Added +800 +800
43 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 29,85829.9k $1.1m $1.1m 0.00% Added +3.6k +3,597
44 STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio MADISON, WI 24,36224.4k $917.5k $917.5k 0.00% Added +3.4k +3,400
45 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 22,54222.5k $848.9k $848.9k 0.00% Reduced -1.9k -1,931
46 Verition Fund Management LLC 0.01% of their portfolio GREENWICH, CT 22,19922.2k $836.0k $836.0k 0.01% Added +16.8k +16,773
47 Swiss National Bank 0.00% of their portfolio ZURICH, V8 21,85021.9k $822.9k $822.9k 0.00% Unchanged
48 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 21,26521.3k $800.8k $800.8k 0.00% Added +985 +985
49 Paloma Partners Management Co 0.04% of their portfolio GREENWICH, CT 20,42420.4k $769.2k $769.2k 0.04% New
50 SG Americas Securities, LLC 0.00% of their portfolio NEW YORK, NY 20,39720.4k $768.0k $768.0k 0.00% Reduced -18.0k -18,006
51 AlphaQuest LLC 0.07% of their portfolio New York, NY 20,16620.2k $759.5k $759.5k 0.07% New
52 WINTON GROUP Ltd 0.05% of their portfolio LONDON, X0 18,56318.6k $699.1k $699.1k 0.05% New
53 Aureus Asset Management, LLC 0.04% of their portfolio BOSTON, MA 17,93517.9k $675.4k $675.4k 0.04% Added +8.0k +8,005
54 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 16,97117.0k $639.1k $639.1k 0.00% Added +12.5k +12,484
55 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 13,87513.9k $522.5k $522.5k 0.00% Reduced -22.7k -22,667
56 Legal & General Group Plc 0.00% of their portfolio London, X0 12,36712.4k $465.7k $465.7k 0.00% Reduced -301 -301
57 PDT Partners, LLC 0.04% of their portfolio New York, NY 11,90711.9k $448.4k $448.4k 0.04% New
58 Centiva Capital, LP 0.02% of their portfolio New York, NY 11,80511.8k $444.6k $444.6k 0.02% New
59 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 11,73411.7k $441.9k $441.9k 0.00% Added +2.4k +2,414
60 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 11,13011.1k $419.2k $419.2k 0.00% Unchanged
61 NJ State Employees Deferred Compensation Plan 0.05% of their portfolio TRENTON, NJ 11,00011.0k $414.3k $414.3k 0.05% Unchanged
62 Inspire Investing, LLC 0.04% of their portfolio MERIDIAN, ID 10,90310.9k $410.6k $410.6k 0.04% New
63 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 10,47310.5k $394.4k $394.4k 0.00% Reduced -485 -485
64 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 9,8369.8k $370.4k $370.4k 0.00% Reduced -943 -943
65 LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio LOS ANGELES, CA 9,8009.8k $369.1k $369.1k 0.00% Added +2.0k +2,009
66 EntryPoint Capital, LLC 0.21% of their portfolio NEW YORK, NY 9,5829.6k $360.9k $360.9k 0.21% Added +3.2k +3,214
67 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 8,7588.8k $329.8k $329.8k 0.00% Added +5.9k +5,943
68 Y-Intercept (Hong Kong) Ltd 0.02% of their portfolio HONG KONG, K3 8,7428.7k $329.2k $329.2k 0.02% Added +1.1k +1,112
69 Man Group plc 0.00% of their portfolio LONDON, X0 8,5718.6k $322.8k $322.8k 0.00% New
70 TWO SIGMA SECURITIES, LLC 0.03% of their portfolio NEW YORK, NY 8,5468.5k $321.8k $321.8k 0.03% New
71 JANUS HENDERSON GROUP PLC 0.00% of their portfolio LONDON, X0 7,8707.9k $296.4k $296.4k 0.00% Unchanged
72 Tower Research Capital LLC (TRC) 0.01% of their portfolio NEW YORK, NY 7,7997.8k $293.7k $293.7k 0.01% Added +853 +853
73 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 7,7367.7k $291.3k $291.3k 0.00% Added +90 +90
74 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 6,9907.0k $227.9k $227.9k 0.00% Reduced -1 -1
75 Virtu Financial LLC 0.01% of their portfolio New York, NY 6,9256.9k $261.0k $261.0k 0.01% Reduced -8.3k -8,339
76 Creative Planning 0.00% of their portfolio OVERLAND PARK, KS 6,8276.8k $257.1k $257.1k 0.00% Added +236 +236
77 BOOTHBAY FUND MANAGEMENT, LLC 0.01% of their portfolio NEW YORK, NY 6,7666.8k $254.8k $254.8k 0.01% Reduced -21.5k -21,549
78 UBS Group AG 0.00% of their portfolio ZURICH, V8 6,6596.7k $250.8k $250.8k 0.00% Reduced -1.1k -1,114
79 GUGGENHEIM CAPITAL LLC 0.00% of their portfolio CHICAGO, IL 6,1506.2k $231.6k $231.6k 0.00% Reduced -1.1k -1,052
80 SHERBROOKE PARK ADVISERS LLC 0.05% of their portfolio WHITE PLAINS, NY 5,9415.9k $223.7k $223.7k 0.05% New
81 Versor Investments LP 0.03% of their portfolio New York, NY 5,6005.6k $210.9k $210.9k 0.03% New
82 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 5,5935.6k $210.6k $210.6k 0.00% Reduced -915 -915
83 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 5,5535.6k $209.1k $209.1k 0.00% Reduced -1.9k -1,943
84 Corebridge Financial, Inc. 0.00% of their portfolio HOUSTON, TX 5,4525.5k $205.3k $205.3k 0.00% Reduced -1.3k -1,335
85 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 5,4095.4k $203.7k $203.7k 0.00% Unchanged
86 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 3,9924.0k $150.3k $150.3k 0.00% Reduced -920 -920
87 LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 3,1143.1k $117.0k $117.0k 0.00% New
88 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 2,6502.6k $100.0k $100.0k 0.00% Added +1.3k +1,257
89 Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio ZURICH, V8 2,6492.6k $99.8k $99.8k 0.00% Unchanged
90 Point72 (DIFC) Ltd 0.01% of their portfolio DUBAI, C0 2,6392.6k $99.4k $99.4k 0.01% Added +2.2k +2,151
91 PenderFund Capital Management Ltd. 0.02% of their portfolio VANCOUVER, A1 2,0002.0k $101.9k $101.9k 0.02% Unchanged
92 MEEDER ASSET MANAGEMENT INC 0.00% of their portfolio DUBLIN, OH 1,5471.5k $58.3k $58.3k 0.00% New
93 Catalyst Funds Management Pty Ltd 0.01% of their portfolio SYDNEY NSW, C3 1,5001.5k $56.5k $56.5k 0.01% New
94 Point72 Asia (Singapore) Pte. Ltd. 0.01% of their portfolio SINGAPORE, U0 1,4801.5k $55.7k $55.7k 0.01% Reduced -834 -834
95 nVerses Capital, LLC 0.02% of their portfolio WELLINGTON, FL 1,2001.2k $45.2k $45.2k 0.02% New
96 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 1,0331.0k $38.9k $38.9k 0.00% Reduced -257 -257
97 CANADA LIFE ASSURANCE Co 0.00% of their portfolio WINNIPEG, A2 974974 $37.0k $37.0k 0.00% Unchanged
98 FEDERATED HERMES, INC. 0.00% of their portfolio PITTSBURGH, PA 823823 $31.0k $31.0k 0.00% New
99 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 700700 $26.4k $26.4k 0.00% Added +179 +179
100 CWM, LLC 0.00% of their portfolio OMAHA, NE 536536 $20.0k $20.0k 0.00% Reduced -136 -136