Vault-13

ANTERIX INC ATEX

COM · Common Stock · CUSIP 03676C100

93 institutional holders -7 vs Q3 2022
15,609,19615.6m shares reported held*
82.7% of all shares outstanding*
$498.1mreported value*
3 new 37 added 26 reduced 13 sold out net sold ≈ $7.5m (-231.9k 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: 18.9m as of 2023-02-07, 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 ≈ $31.91. Options: 5 managers hold calls ($4.9m notional), 3 hold puts ($2.9m).

Trends to Q4 2022

Institutional holders

Managers reporting a position, each quarter

050100Q3 22: 100Q4 22: 9393Q3 22Q4 22
Numbers
QuarterHolders
Q3 2022100
Q4 202293

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 0.58
Numbers
QuarterCallsPutsP/C
Q3 2022$1.0m$7.0k0.01
Q4 2022$4.9m$2.9m0.58

Biggest buyers

Heard Capital LLC Added +306,183+306.2k
MORGAN STANLEY Added +145,155+145.2k
STATE STREET CORP Added +54,880+54.9k
BlackRock Inc. Added +52,853+52.9k
GARNET EQUITY CAPITAL HOLDINGS, INC. Added +46,000+46.0k
Roubaix Capital, LLC Added +40,915+40.9k
JANE STREET GROUP, LLC Added +27,612+27.6k
GAMCO INVESTORS, INC. ET AL Added +20,800+20.8k
GEODE CAPITAL MANAGEMENT, LLC Added +19,559+19.6k
GABELLI FUNDS LLC Added +18,500+18.5k

Biggest sellers

Bain Capital Credit, LP Sold out -681,005-681.0k
GOLDMAN SACHS GROUP INC Reduced -87,395-87.4k
CITADEL ADVISORS LLC Reduced -46,366-46.4k
SIRIOS CAPITAL MANAGEMENT L P Sold out -45,276-45.3k
O'Brien Greene & Co. Inc Sold out -39,600-39.6k
STONEHILL CAPITAL MANAGEMENT LLC Reduced -24,733-24.7k
RENAISSANCE TECHNOLOGIES LLC Sold out -20,600-20.6k
Resolute Capital Asset Partners LLC Reduced -14,500-14.5k
DIMENSIONAL FUND ADVISORS LP Reduced -13,337-13.3k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Sold out -10,769-10.8k

Biggest calls

JANE STREET GROUP, LLC New $2.8m87.9k shares
CITADEL ADVISORS LLC Added $1.1m35.5k shares
WOLVERINE TRADING, LLC New $611.0k19.0k shares
SIMPLEX TRADING, LLC Added $366.0k11.4k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

JANE STREET GROUP, LLC New $2.7m85.0k shares
CITADEL ADVISORS LLC New $122.2k3.8k 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), DG Capital Management, LLC (4.0%, 2025-11-12)

Insider purchases and sales in Q4 2022

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
404Q1 21: 0 buyingQ1 21: 0 sellingQ2 21: 0 buyingQ2 21: 0 sellingQ2 21Q3 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 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q1 20210—0——
Q2 20210—0——
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—
DateInsiderTradeSharesPrice ValueTheir holding
2022-11-28 Ashe Gena L Chief Legal Officer & Corp Sec Sold 279 $35.43 $9.9k279 shares -1%
2022-11-25 Guttman-McCabe Christopher Chief Reg & Comm Officer Sold 8,332 $36.21 $301.7k8.3k shares -13%
2022-11-08 Ashe Gena L Chief Legal Officer & Corp Sec Sold 920 $36.90 $33.9k920 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, Q4 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Owl Creek Asset Management, L.P. 12.31% of their portfolio New York, NY 5,411,7765.4m $174.1m $174.1m 12.31% Unchanged
2 Heard Capital LLC 5.26% of their portfolio Chicago, IL 1,509,2601.5m $48.6m $48.6m 5.26% Added +306.2k +306,183
3 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 1,415,0481.4m $45.5m $45.5m 0.01% Added +145.2k +145,155
4 BlackRock Inc. 0.00% of their portfolio New York, NY 1,288,7311.3m $41.5m $41.5m 0.00% Added +52.9k +52,853
5 STONEHILL CAPITAL MANAGEMENT LLC 30.38% of their portfolio NEW YORK, NY 874,942874.9k $28.1m $28.1m 30.38% Reduced -24.7k -24,733
6 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 800,630800.6k $25.8m $25.8m 0.00% Added +9.8k +9,769
7 QVT Financial LP 0.97% of their portfolio New York, NY 503,941503.9k $16.2m $16.2m 0.97% Unchanged
8 Price Jennifer C. 3.08% of their portfolio NEW YORK, NY 400,000400.0k $12.9m $12.9m 3.08% Unchanged
9 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 386,922386.9k $12.4m $12.4m 0.00% Added +54.9k +54,880
10 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 366,891366.9k $11.8m $11.8m 0.00% Added +19.6k +19,559
11 Clearbridge Investments, LLC 0.01% of their portfolio NEW YORK, NY 307,859307.9k $9.9m $9.9m 0.01% Reduced -3.2k -3,204
12 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 290,874290.9k $9.4m $9.4m 0.00% Reduced -13.3k -13,337
13 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 178,698178.7k $5.7m $5.7m 0.00% Added +6.4k +6,393
14 Roubaix Capital, LLC 4.11% of their portfolio DENVER, CO 157,695157.7k $5.1m $5.1m 4.11% Added +40.9k +40,915
15 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 137,685137.7k $4.4m $4.4m 0.00% Added +2.0k +2,039
16 PenderFund Capital Management Ltd. 1.64% of their portfolio VANCOUVER, A1 126,500126.5k $5.5k $5.5k 1.64% Unchanged
17 TUDOR INVESTMENT CORP ET AL 0.10% of their portfolio STAMFORD, CT 121,825121.8k $3.9m $3.9m 0.10% Reduced -664 -664
18 GABELLI FUNDS LLC 0.03% of their portfolio Rye, NY 115,500115.5k $3.7m $3.7m 0.03% Added +18.5k +18,500
19 FMR LLC 0.00% of their portfolio BOSTON, MA 111,129111.1k $3.6m $3.6m 0.00% Reduced -9.2k -9,189
20 Resolute Capital Asset Partners LLC 2.66% of their portfolio DENVER, CO 92,64592.6k $3.0m $3.0m 2.66% Reduced -14.5k -14,500
21 SCOGGIN MANAGEMENT LP 3.58% of their portfolio NEW YORK, NY 87,50087.5k $2.8m $2.8m 3.58% Added +12.5k +12,500
22 GARNET EQUITY CAPITAL HOLDINGS, INC. 6.41% of their portfolio NEW YORK, NY 86,20286.2k $2.8m $2.8m 6.41% Added +46.0k +46,000
23 STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio MADISON, WI 78,05378.1k $2.5m $2.5m 0.01% Reduced -816 -816
24 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 66,73966.7k $2.1m $2.1m 0.00% Reduced -221 -221
25 Teton Advisors, Inc. 0.52% of their portfolio Rye, NY 63,00063.0k $2.0m $2.0m 0.52% Unchanged
26 KIRR MARBACH & CO LLC /IN/ 0.54% of their portfolio COLUMBUS, IN 54,02454.0k $1.7m $1.7m 0.54% Reduced -9.7k -9,663
27 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 45,63245.6k $1.5m $1.5m 0.00% Reduced -6.6k -6,598
28 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 43,05843.1k $1.4m $1.4m 0.00% Added +27.6k +27,612
29 Swiss National Bank 0.00% of their portfolio ZURICH, V8 32,05032.0k $1.0m $1.0m 0.00% Added +600 +600
30 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 30,55730.6k $983.0k $983.0k 0.00% Reduced -87.4k -87,395
31 GAMCO INVESTORS, INC. ET AL 0.01% of their portfolio GREENWICH, CT 30,30030.3k $974.8k $974.8k 0.01% Added +20.8k +20,800
32 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 27,93627.9k $898.7k $898.7k 0.00% Added +6.0k +5,984
33 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 23,05623.1k $742.0k $742.0k 0.00% Added +561 +561
34 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 20,48020.5k $658.8k $658.8k 0.00% Added +811 +811
35 CenterBook Partners LP 0.10% of their portfolio GREENWICH, CT 19,36019.4k $622.8k $622.8k 0.10% Reduced -4.7k -4,664
36 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 18,86418.9k $606.9k $606.9k 0.00% Added +194 +194
37 SG Americas Securities, LLC 0.01% of their portfolio NEW YORK, NY 17,22417.2k $554.0k $554.0k 0.01% Added +5.2k +5,243
38 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 15,10915.1k $486.0k $486.0k 0.00% Added +1.4k +1,434
39 WOODMONT INVESTMENT COUNSEL LLC 0.05% of their portfolio NASHVILLE, TN 14,45014.4k $464.9k $464.9k 0.05% Added +2.8k +2,800
40 Alpha Paradigm Partners, LLC 0.18% of their portfolio CHICAGO, IL 13,88113.9k $447.0k $447.0k 0.18% Reduced -1.2k -1,172
41 MARTINGALE ASSET MANAGEMENT L P 0.01% of their portfolio BOSTON, MA 13,30313.3k $428.0k $428.0k 0.01% Added +5 +5
42 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 12,85912.9k $413.7k $413.7k 0.00% Added +1.4k +1,449
43 THOMPSON SIEGEL & WALMSLEY LLC 0.01% of their portfolio RICHMOND, VA 12,54412.5k $404.0k $404.0k 0.01% Added +9.3k +9,310
44 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 11,94311.9k $384.2k $384.2k 0.00% Unchanged
45 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 11,40011.4k $366.7k $366.7k 0.00% Added +2.9k +2,900
46 NJ State Employees Deferred Compensation Plan 0.06% of their portfolio TRENTON, NJ 11,00011.0k $353.9k $353.9k 0.06% Unchanged
47 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 10,34210.3k $332.0k $332.0k 0.00% Unchanged
48 Aureus Asset Management, LLC 0.03% of their portfolio BOSTON, MA 9,9309.9k $319.4k $319.4k 0.03% Unchanged
49 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 9,8379.8k $316.5k $316.5k 0.00% Unchanged
50 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 9,4629.5k $304.4k $304.4k 0.00% New
51 CREDIT SUISSE AG/ 0.00% of their portfolio ZURICH, V8 9,4339.4k $303.5k $303.5k 0.00% Reduced -540 -540
52 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 8,9008.9k $286.3k $286.3k 0.00% Added +1.0k +1,023
53 GROUP ONE TRADING LLC 0.01% of their portfolio CHICAGO, IL 8,8148.8k $283.5k $283.5k 0.01% Added +6.7k +6,742
54 AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio New York, NY 8,7078.7k $280.1k $280.1k 0.00% Reduced -32 -32
55 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 8,1798.2k $263.1k $263.1k 0.00% Reduced -46.4k -46,366
56 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 7,4397.4k $239.3k $239.3k 0.00% Reduced -1.2k -1,230
57 TWO SIGMA ADVISERS, LP 0.00% of their portfolio NEW YORK, NY 7,1007.1k $228.4k $228.4k 0.00% Added +500 +500
58 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 7,0367.0k $226.3k $226.3k 0.00% New
59 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 6,9987.0k $225.1k $225.1k 0.00% Unchanged
60 UBS Group AG 0.00% of their portfolio ZURICH, V8 6,6506.7k $213.9k $213.9k 0.00% Added +6.2k +6,184
61 Legal & General Group Plc 0.00% of their portfolio London, X0 5,4985.5k $176.9k $176.9k 0.00% Unchanged
62 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 4,9444.9k $159.0k $159.0k 0.00% First filing
63 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 3,3443.3k $108.0k $108.0k 0.00% Added +3.0k +3,020
64 LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 3,1073.1k $99.0k $99.0k 0.00% Added +1.5k +1,505
65 AMALGAMATED BANK 0.00% of their portfolio NEW YORK, NY 2,5482.5k $82.0k $82.0k 0.00% Unchanged
66 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 1,7061.7k $54.0k $54.0k 0.00% Reduced -978 -978
67 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 1,4431.4k $53.6k $53.6k 0.00% Unchanged
68 Metropolitan Life Insurance Co/NY 0.00% of their portfolio New York, NY 1,1151.1k $35.9k $35.9k 0.00% Unchanged
69 EMERALD ADVISERS, LLC 0.00% of their portfolio LEOLA, PA 1,1001.1k $35.4k $35.4k 0.00% Unchanged
70 Spire Wealth Management 0.00% of their portfolio MCLEAN, VA 934934 $30.0k $30.0k 0.00% Unchanged
71 Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio ZURICH, V8 912912 $29.3k $29.3k 0.00% Unchanged
72 CANADA LIFE ASSURANCE Co 0.00% of their portfolio WINNIPEG, A2 834834 $27.0k $27.0k 0.00% Unchanged
73 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 609609 $19.6k $19.6k 0.00% Reduced -182 -182
74 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 475475 $15.3k $15.3k 0.00% Reduced -230 -230
75 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 466466 $15.0k $15.0k 0.00% Added +244 +244
76 QUADRANT CAPITAL GROUP LLC 0.00% of their portfolio CINCINNATI, OH 458458 $14.7k $14.7k 0.00% Added +449 +449
77 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 397397 $13.0k $13.0k 0.00% Reduced -933 -933
78 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 286286 $9.0k $9.0k 0.00% Added +48 +48
79 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 216216 $7.0k $7.0k 0.00% Unchanged
80 SIGNATUREFD, LLC 0.00% of their portfolio ATLANTA, GA 199199 $6.4k $6.4k 0.00% Added +127 +127
81 BAILLIE GIFFORD & CO 0.00% of their portfolio EDINBURGH, X0 162162 $5.2k $5.2k 0.00% Unchanged
82 PRIVATE TRUST CO NA 0.00% of their portfolio CLEVELAND, OH 150150 $5.0k $5.0k 0.00% Reduced -40 -40
83 Lindbrook Capital, LLC 0.00% of their portfolio CALABASAS, CA 9292 $3.0k $3.0k 0.00% Reduced -40 -40
84 CWM, LLC 0.00% of their portfolio OMAHA, NE 8383 $3.0k $3.0k 0.00% Reduced -239 -239
85 Parallel Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 7373 $2.3k $2.3k 0.00% Added +25 +25
86 Glassman Wealth Services 0.00% of their portfolio VIENNA, VA 4343 $1.4k $1.4k 0.00% Reduced -20 -20
87 Global Retirement Partners, LLC 0.00% of their portfolio San Rafael, CA 3939 $1.3k $1.3k 0.00% Unchanged
88 UMB Bank, n.a. 0.00% of their portfolio Kansas City, MO 2929 $1.0k $1.0k 0.00% Not comparable
89 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 1212 $386 $386 0.00% Reduced -82 -82
90 Farther Finance Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 1111 $354 $354 0.00% First filing
91 Ellevest, Inc. 0.00% of their portfolio NEW YORK, NY 66 $193 $193 0.00% New
92 Covestor Ltd 0.00% of their portfolio LONDON, X0 33 $0 $0 0.00% Unchanged
93 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged