Vault-13

ANTERIX INC ATEX

COM · Common Stock · CUSIP 03676C100

96 institutional holders +7 vs Q1 2023
15,460,86215.5m shares reported held*
81.2% of all shares outstanding*
$486.0mreported value*
14 new 39 added 22 reduced 7 sold out net sold ≈ $8.2m (-258.4k 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: 19.0m as of 2023-06-09, 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 ≈ $31.43. Options: 4 managers hold calls ($570.1k notional), 4 hold puts ($735.2k).

Trends to Q2 2023

Institutional holders

Managers reporting a position, each quarter

050100Q3 22: 100Q4 22: 93Q1 23: 89Q2 23: 9696Q3 22Q4 22Q1 23Q2 23
Numbers
QuarterHolders
Q3 2022100
Q4 202293
Q1 202389
Q2 202396

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 outQ4 22Q1 23: 41 bought or addedQ1 23: 29 cut or sold outQ1 23Q2 23: 53 bought or addedQ2 23: 29 cut or sold outQ2 23
Numbers
QuarterBought or addedCut or sold out
Q4 20224039
Q1 20234129
Q2 20235329

Calls vs puts

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

CallsPuts
$0$2m$4m$6mQ3 22 calls: $1.0mQ3 22 puts: $7.0kQ3 22P/C 0.01Q4 22 calls: $4.9mQ4 22 puts: $2.9mQ4 22P/C 0.58Q1 23 calls: $2.7mQ1 23 puts: $59.5kQ1 23P/C 0.02Q2 23 calls: $570.1kQ2 23 puts: $735.2kQ2 23P/C 1.29
Numbers
QuarterCallsPutsP/C
Q3 2022$1.0m$7.0k0.01
Q4 2022$4.9m$2.9m0.58
Q1 2023$2.7m$59.5k0.02
Q2 2023$570.1k$735.2k1.29

Biggest buyers

Jefferies Financial Group Inc. New +114,989+115.0k
LUMINUS MANAGEMENT LLC New +108,450+108.5k
Roubaix Capital, LLC Added +47,930+47.9k
DIMENSIONAL FUND ADVISORS LP Added +44,064+44.1k
Heard Capital LLC Added +43,382+43.4k
Squarepoint Ops LLC New +26,372+26.4k
CITADEL ADVISORS LLC Added +26,331+26.3k
GAMCO INVESTORS, INC. ET AL Added +24,900+24.9k
BlackRock Inc. Added +18,811+18.8k
VANGUARD GROUP INC Added +15,470+15.5k

Biggest sellers

MORGAN STANLEY Reduced -456,148-456.1k
FMR LLC Reduced -184,631-184.6k
DG Capital Management, LLC Reduced -80,195-80.2k
SCOGGIN MANAGEMENT LP Sold out -50,000-50.0k
Resolute Capital Asset Partners LLC Reduced -27,700-27.7k
GARNET EQUITY CAPITAL HOLDINGS, INC. Reduced -24,600-24.6k
THOMPSON SIEGEL & WALMSLEY LLC Sold out -18,534-18.5k
SG Americas Securities, LLC Sold out -15,993-16.0k
JANE STREET GROUP, LLC Reduced -13,104-13.1k
BANK OF AMERICA CORP /DE/ Reduced -6,370-6.4k

Biggest calls

CITADEL ADVISORS LLC Reduced $557.7k17.6k shares
GROUP ONE TRADING LLC New $6.3k200 shares
SIMPLEX TRADING, LLC Reduced $6.0k200 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

CITADEL ADVISORS LLC Added $393.0k12.4k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP New $247.2k7.8k shares
GROUP ONE TRADING LLC New $95.1k3.0k 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
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 Q2 2023

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 21: 0 buyingQ3 21: 0 sellingQ4 21: 2 buyingQ4 21: 2 sellingQ4 21Q1 22: 0 buyingQ1 22: 3 sellingQ2 22: 1 buyingQ2 22: 2 sellingQ2 22Q3 22: 1 buyingQ3 22: 0 sellingQ4 22: 0 buyingQ4 22: 2 sellingQ4 22Q1 23: 2 buyingQ1 23: 1 sellingQ2 23: 0 buyingQ2 23: 1 sellingQ2 23
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20210—0——
Q4 20212$263.8k2$1.4m—
Q1 20220—3$1.5m—
Q2 20221$4.3k2$1.2m—
Q3 20221$3.7k0——
Q4 20220—2$345.5k—
Q1 20232$77.8k1$1.4m—
Q2 20230—1$251.2k—
DateInsiderTradeSharesPrice ValueTheir holding
2023-06-16 Ashe Gena L Chief Legal Officer & Corp Sec Sold 7,235 $34.72 $251.2k7.2k shares -25%

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 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Owl Creek Asset Management, L.P. 13.89% of their portfolio New York, NY 5,411,7765.4m $171.5m $171.5m 13.89% Unchanged
2 Heard Capital LLC 4.29% of their portfolio Chicago, IL 1,763,1721.8m $55.9m $55.9m 4.29% Added +43.4k +43,382
3 BlackRock Inc. 0.00% of their portfolio New York, NY 1,343,1981.3m $42.6m $42.6m 0.00% Added +18.8k +18,811
4 STONEHILL CAPITAL MANAGEMENT LLC 30.47% of their portfolio NEW YORK, NY 874,942874.9k $27.7m $27.7m 30.47% Unchanged
5 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 819,642819.6k $26.0m $26.0m 0.00% Added +15.5k +15,470
6 QVT Financial LP 0.94% of their portfolio New York, NY 503,941503.9k $16.0m $16.0m 0.94% Unchanged
7 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 405,736405.7k $12.9m $12.9m 0.00% Added +8.4k +8,371
8 Price Jennifer C. 4.36% of their portfolio NEW YORK, NY 400,000400.0k $12.7m $12.7m 4.36% Unchanged
9 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 392,367392.4k $12.4m $12.4m 0.00% Added +12.7k +12,719
10 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 374,999375.0k $11.9m $11.9m 0.00% Added +44.1k +44,064
11 Clearbridge Investments, LLC 0.01% of their portfolio NEW YORK, NY 317,094317.1k $10.0m $10.0m 0.01% Added +3.1k +3,150
12 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 314,953315.0k $10.0m $10.0m 0.00% Reduced -456.1k -456,148
13 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 183,270183.3k $5.8m $5.8m 0.00% Added +4.7k +4,738
14 GARNET EQUITY CAPITAL HOLDINGS, INC. 5.89% of their portfolio NEW YORK, NY 174,202174.2k $5.5m $5.5m 5.89% Reduced -24.6k -24,600
15 Roubaix Capital, LLC 3.81% of their portfolio DENVER, CO 163,542163.5k $5.2m $5.2m 3.81% Added +47.9k +47,930
16 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 141,518141.5k $4.5m $4.5m 0.00% Added +767 +767
17 FMR LLC 0.00% of their portfolio BOSTON, MA 141,093141.1k $4.5m $4.5m 0.00% Reduced -184.6k -184,631
18 DG Capital Management, LLC 2.11% of their portfolio NEW YORK, NY 128,672128.7k $4.1m $4.1m 2.11% Reduced -80.2k -80,195
19 PenderFund Capital Management Ltd. 1.65% of their portfolio VANCOUVER, A1 126,500126.5k $5.3k $5.3k 1.65% Unchanged
20 GABELLI FUNDS LLC 0.03% of their portfolio Rye, NY 116,000116.0k $3.7m $3.7m 0.03% Added +3.5k +3,500
21 Jefferies Financial Group Inc. 0.08% of their portfolio NEW YORK, NY 114,989115.0k $3.6m $3.6m 0.08% New
22 LUMINUS MANAGEMENT LLC 1.05% of their portfolio HOUSTON, TX 108,450108.5k $3.4m $3.4m 1.05% New
23 TUDOR INVESTMENT CORP ET AL 0.05% of their portfolio STAMFORD, CT 102,254102.3k $3.2m $3.2m 0.05% Reduced -74 -74
24 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 84,52284.5k $2.7m $2.7m 0.00% Added +15.0k +15,019
25 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 74,79374.8k $2.4m $2.4m 0.00% Added +26.3k +26,331
26 KIRR MARBACH & CO LLC /IN/ 0.56% of their portfolio COLUMBUS, IN 63,62163.6k $2.0m $2.0m 0.56% Reduced -666 -666
27 Teton Advisors, Inc. 0.56% of their portfolio Rye, NY 63,00063.0k $2.0m $2.0m 0.56% Unchanged
28 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 62,14562.1k $2.0m $2.0m 0.00% Reduced -5.0k -4,997
29 GAMCO INVESTORS, INC. ET AL 0.02% of their portfolio GREENWICH, CT 57,50057.5k $1.8m $1.8m 0.02% Added +24.9k +24,900
30 Resolute Capital Asset Partners LLC 1.02% of their portfolio DENVER, CO 45,48945.5k $1.4m $1.4m 1.02% Reduced -27.7k -27,700
31 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 42,17142.2k $1.3m $1.3m 0.00% Unchanged
32 WOODMONT INVESTMENT COUNSEL LLC 0.10% of their portfolio NASHVILLE, TN 29,95029.9k $949.1k $949.1k 0.10% Added +2.3k +2,300
33 Swiss National Bank 0.00% of their portfolio ZURICH, V8 28,65028.6k $907.9k $907.9k 0.00% Unchanged
34 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 27,59827.6k $874.6k $874.6k 0.00% Added +10.0k +10,026
35 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 27,37227.4k $867.4k $867.4k 0.00% Reduced -6.4k -6,370
36 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 26,37226.4k $835.7k $835.7k 0.00% New
37 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 26,14126.1k $828.4k $828.4k 0.00% Reduced -13.1k -13,104
38 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 24,23824.2k $768.1k $768.1k 0.00% Reduced -2.0k -2,002
39 STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio MADISON, WI 23,34323.3k $739.7k $739.7k 0.00% Added +9.2k +9,172
40 CenterBook Partners LP 0.08% of their portfolio GREENWICH, CT 20,69920.7k $656.0k $656.0k 0.08% Reduced -1.4k -1,395
41 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 17,73517.7k $562.0k $562.0k 0.00% Reduced -768 -768
42 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 16,78516.8k $531.9k $531.9k 0.00% Added +2.0k +2,033
43 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 16,44916.4k $521.3k $521.3k 0.00% Added +340 +340
44 CREDIT SUISSE AG/ 0.00% of their portfolio ZURICH, V8 15,70715.7k $497.8k $497.8k 0.00% Added +5.2k +5,184
45 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 13,69213.7k $452.4k $452.4k 0.00% Unchanged
46 Nebula Research & Development LLC 0.32% of their portfolio New York, NY 13,23413.2k $419.4k $419.4k 0.32% New
47 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 12,82012.8k $406.3k $406.3k 0.00% Added +1.4k +1,420
48 Legal & General Group Plc 0.00% of their portfolio London, X0 11,37011.4k $360.3k $360.3k 0.00% Added +5.4k +5,383
49 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 11,36211.4k $360.1k $360.1k 0.00% New
50 NJ State Employees Deferred Compensation Plan 0.05% of their portfolio TRENTON, NJ 11,00011.0k $348.6k $348.6k 0.05% Unchanged
51 ExodusPoint Capital Management, LP 0.00% of their portfolio NEW YORK, NY 10,06110.1k $319.0k $319.0k 0.00% New
52 Aureus Asset Management, LLC 0.02% of their portfolio BOSTON, MA 9,9309.9k $314.7k $314.7k 0.02% Unchanged
53 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 9,9189.9k $314.3k $314.3k 0.00% Reduced -3.3k -3,315
54 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 9,8379.8k $311.7k $311.7k 0.00% Unchanged
55 UBS Group AG 0.00% of their portfolio ZURICH, V8 9,5179.5k $301.6k $301.6k 0.00% Added +2.8k +2,815
56 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 9,4499.4k $299.4k $299.4k 0.00% Reduced -10 -10
57 AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio New York, NY 8,8518.9k $280.5k $280.5k 0.00% Reduced -33 -33
58 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 8,2468.2k $261.3k $261.3k 0.00% Added +4.4k +4,425
59 LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio LOS ANGELES, CA 8,2118.2k $260.2k $260.2k 0.00% New
60 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 7,9087.9k $251.0k $251.0k 0.00% Reduced -2.4k -2,434
61 Y-Intercept (Hong Kong) Ltd 0.03% of their portfolio HONG KONG, K3 7,6767.7k $243.3k $243.3k 0.03% New
62 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 7,4777.5k $236.9k $236.9k 0.00% Added +441 +441
63 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 7,3777.4k $233.8k $233.8k 0.00% Added +379 +379
64 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 7,1297.1k $225.9k $225.9k 0.00% New
65 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 7,1177.1k $225.5k $225.5k 0.00% Reduced -160 -160
66 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 6,5586.6k $207.8k $207.8k 0.00% New
67 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 6,2476.2k $198.0k $198.0k 0.00% Reduced -3.1k -3,065
68 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 5,8095.8k $184.1k $184.1k 0.00% Added +5.5k +5,475
69 Aquatic Capital Management LLC 0.01% of their portfolio CHICAGO, IL 4,8004.8k $152.0k $152.0k 0.01% New
70 AMALGAMATED BANK 0.00% of their portfolio NEW YORK, NY 2,7442.7k $87.0k $87.0k 0.00% Added +627 +627
71 Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio ZURICH, V8 2,6492.6k $83.9k $83.9k 0.00% Added +1.7k +1,737
72 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 1,6901.7k $53.0k $53.0k 0.00% Added +560 +560
73 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 1,4451.4k $45.8k $45.8k 0.00% Added +449 +449
74 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 1,4431.4k $45.7k $45.7k 0.00% Unchanged
75 Metropolitan Life Insurance Co/NY 0.00% of their portfolio New York, NY 1,1151.1k $35.3k $35.3k 0.00% Unchanged
76 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 1,0131.0k $32.1k $32.1k 0.00% Added +713 +713
77 Spire Wealth Management 0.00% of their portfolio MCLEAN, VA 934934 $29.6k $29.6k 0.00% Unchanged
78 QUADRANT CAPITAL GROUP LLC 0.00% of their portfolio CINCINNATI, OH 930930 $29.5k $29.5k 0.00% Added +312 +312
79 CWM, LLC 0.00% of their portfolio OMAHA, NE 840840 $27.0k $27.0k 0.00% Added +679 +679
80 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 667667 $21.1k $21.1k 0.00% Added +655 +655
81 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 602602 $19.1k $19.1k 0.00% Added +117 +117
82 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 565565 $17.0k $17.0k 0.00% Reduced -4.5k -4,503
83 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 519519 $16.4k $16.4k 0.00% Added +91 +91
84 SIGNATUREFD, LLC 0.00% of their portfolio ATLANTA, GA 514514 $16.3k $16.3k 0.00% Reduced -161 -161
85 Lindbrook Capital, LLC 0.00% of their portfolio CALABASAS, CA 259259 $8.2k $8.2k 0.00% Reduced -11 -11
86 West Tower Group, LLC 0.01% of their portfolio RICHMOND, VA 252252 $8.0k $8.0k 0.01% New
87 Parallel Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 141141 $4.5k $4.5k 0.00% Added +32 +32
88 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 134134 $4.2k $4.2k 0.00% Added +125 +125
89 PRIVATE TRUST CO NA 0.00% of their portfolio CLEVELAND, OH 115115 $3.6k $3.6k 0.00% Unchanged
90 Global Retirement Partners, LLC 0.00% of their portfolio San Rafael, CA 3939 $1.2k $1.2k 0.00% Unchanged
91 Glassman Wealth Services 0.00% of their portfolio VIENNA, VA 2727 $856 $856 0.00% Unchanged
92 Versant Capital Management, Inc 0.00% of their portfolio PHOENIX, AZ 1616 $507 $507 0.00% New
93 Farther Finance Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 1111 $349 $349 0.00% Unchanged
94 Allworth Financial LP 0.00% of their portfolio FOLSOM, CA 99 $286 $286 0.00% New
95 Covestor Ltd 0.00% of their portfolio LONDON, X0 33 $0 $0 0.00% Unchanged
96 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged