Vault-13

LANTHEUS HLDGS INC LNTH

COM · Common Stock · CUSIP 516544103 · ISIN US5165441032

Radiopharmaceuticals company

353 institutional holders
67,507,77067.5m shares reported held*
98.1% of all shares outstanding*
$4.7bnreported value*

* 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 ($2.6m this quarter). Holder counts are more reliable. Shares outstanding: 68.8m as of 2022-10-28, 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 ≈ $70.21. Options: 14 managers hold calls ($74.0m notional), 15 hold puts ($54.2m).

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP — $20.4m290.6k shares
CITADEL ADVISORS LLC — $16.8m239.0k shares
Caption Management, LLC — $8.8m125.0k shares
Walleye Trading LLC — $5.6m79.1k shares
JANE STREET GROUP, LLC — $5.3m76.0k shares
Cubist Systematic Strategies, LLC — $4.8m68.5k shares
SIMPLEX TRADING, LLC — $3.3m46.3k shares
GROUP ONE TRADING LLC — $2.5m36.0k shares
D. E. Shaw & Co., Inc. — $2.3m32.3k shares
Walleye Capital LLC — $2.3m32.2k shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP — $14.7m208.4k shares
CITADEL ADVISORS LLC — $14.1m200.3k shares
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC — $12.7m180.0k shares
SIMPLEX TRADING, LLC — $4.4m62.9k shares
JANE STREET GROUP, LLC — $2.1m30.1k shares
Affinity Asset Advisors, LLC — $2.1m30.0k shares
Caption Management, LLC — $1.5m22.0k shares
Walleye Trading LLC — $724.0k10.3k shares
GROUP ONE TRADING LLC — $689.0k9.8k shares
Walleye Capital LLC — $633.0k9.0k 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
JANUS HENDERSON GROUP PLC 13G · institution -1.2 pts · filed 2026-05-15 7.4% -1.2 pts 4.8m≈ $529.7m 2026-05-15
FMR LLC 13G · institution -1.0 pts · filed 2025-11-05 6.5% -1.0 pts 4.4m≈ $488.1m 2025-11-05
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 5.2% new 3.4m≈ $379.6m 2026-04-30
VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-07-31 5.1% new 3.3m≈ $366.1m 2026-07-31

Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC), MORGAN STANLEY (2.5%, 2026-02-12)

Insider purchases and sales in Q3 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
10010Q4 20: 0 buyingQ4 20: 0 sellingQ1 21: 0 buyingQ1 21: 0 sellingQ1 21Q2 21: 0 buyingQ2 21: 0 sellingQ3 21: 0 buyingQ3 21: 0 sellingQ3 21Q4 21: 0 buyingQ4 21: 4 sellingQ1 22: 0 buyingQ1 22: 7 sellingQ1 22Q2 22: 0 buyingQ2 22: 8 sellingQ3 22: 0 buyingQ3 22: 7 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—4$814.2k—
Q1 20220—7$7.1m—
Q2 20220—8$2.6m—
Q3 20220—7$5.7m—
DateInsiderTradeSharesPrice ValueTheir holding
2022-09-15 Sabens Andrea Chief Accounting Officer Sold 386 $85.83 $33.1k386 shares -1%
2022-09-08 MARKISON BRIAN A Director Sold 41,812 $84.24 $3.5m41.8k shares -56%
2022-09-06 McHugh Julie Director Sold 4,300 $78.50 $337.6k4.3k shares -14%
2022-09-06 MARKISON BRIAN A Director Sold 1,693 $78.50 $132.9k1.7k shares -3%
2022-08-18 Blanchfield Paul Chief Operating Officer Sold 1,500 $83.39 $125.1k1.5k shares -2%
2022-08-15 Marshall Robert J. Jr. CFO and Treasurer Sold 5,000 $82.82 $414.1k5.0k shares -4%
2022-08-15 Sabens Andrea Chief Accounting Officer Sold 386 $82.82 $32.0k386 shares -1%
2022-08-11 Niedzwiecki Daniel Officer Sold 3,000 $82.66 $248.0k3.0k shares -4%
2022-08-08 Heino Mary Anne President & CEO, director Sold 9,432 $79.69 $751.7k9.4k shares -1%
2022-07-18 Sabens Andrea Chief Accounting Officer Sold 1,093 $71.47 $78.1k1.1k shares -2%
2022-07-15 Sabens Andrea Chief Accounting Officer Sold 386 $69.12 $26.7k386 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, Q3 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock Inc. 0.03% of their portfolio New York, NY 10,831,69110.8m $761.8m $761.8m 0.03% —
2 VANGUARD GROUP INC 0.02% of their portfolio Valley Forge, PA 7,765,1207.8m $546.1m $546.1m 0.02% —
3 ALLIANCEBERNSTEIN L.P. 0.09% of their portfolio NASHVILLE, TN 2,704,0992.7m $190.2m $190.2m 0.09% —
4 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 2,394,9842.4m $168.4m $168.4m 0.01% —
5 LORD, ABBETT & CO. LLC 0.49% of their portfolio JERSEY CITY, NJ 1,908,4161.9m $134.2m $134.2m 0.49% —
6 1832 Asset Management L.P. 0.26% of their portfolio TORONTO, A6 1,765,4001.8m $124.2m $124.2m 0.26% —
7 DIMENSIONAL FUND ADVISORS LP 0.05% of their portfolio AUSTIN, TX 1,692,6131.7m $119.0m $119.0m 0.05% —
8 Hood River Capital Management LLC 4.12% of their portfolio PALM BEACH GARDENS, FL 1,531,3031.5m $107.7m $107.7m 4.12% —
9 Invesco Ltd. 0.03% of their portfolio ATLANTA, GA 1,461,7481.5m $102.8m $102.8m 0.03% —
10 SILVERCREST ASSET MANAGEMENT GROUP LLC 0.82% of their portfolio NEW YORK, NY 1,421,8771.4m $100.0m $100.0m 0.82% —
11 PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio BALTIMORE, MD 1,255,6711.3m $88.3m $88.3m 0.01% —
12 WESTFIELD CAPITAL MANAGEMENT CO LP 0.70% of their portfolio BOSTON, MA 1,254,7341.3m $88.2m $88.2m 0.70% —
13 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 1,240,4881.2m $87.3m $87.3m 0.01% —
14 Driehaus Capital Management LLC 1.04% of their portfolio Chicago, IL 976,872976.9k $68.7m $68.7m 1.04% —
15 T. Rowe Price Investment Management, Inc. 0.05% of their portfolio BALTIMORE, MD 926,536926.5k $65.2m $65.2m 0.05% —
16 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 903,968904.0k $63.6m $63.6m 0.01% —
17 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 840,317840.3k $59.1m $59.1m 0.01% —
18 Thrivent Financial for Lutherans 0.16% of their portfolio Minneapolis, MN 831,641831.6k $58.5m $58.5m 0.16% —
19 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio SAN FRANCISCO, CA 751,367751.4k $52.8m $52.8m 0.02% —
20 Artisan Partners Limited Partnership 0.09% of their portfolio Milwaukee, WI 703,270703.3k $49.5m $49.5m 0.09% —
21 Bank of New York Mellon Corp 0.01% of their portfolio NEW YORK, NY 689,948689.9k $48.5m $48.5m 0.01% —
22 Nuveen Asset Management, LLC 0.02% of their portfolio CHICAGO, IL 672,713672.7k $47.3m $47.3m 0.02% —
23 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.17% of their portfolio CHICAGO, IL 598,328598.3k $42.1m $42.1m 0.17% —
24 MILLENNIUM MANAGEMENT LLC 0.05% of their portfolio NEW YORK, NY 561,475561.5k $39.5m $39.5m 0.05% —
25 PUTNAM INVESTMENTS LLC 0.07% of their portfolio BOSTON, MA 520,872520.9k $36.6m $36.6m 0.07% —
26 MARSHALL WACE, LLP 0.09% of their portfolio LONDON, X0 495,123495.1k $34.8m $34.8m 0.09% —
27 EAGLE ASSET MANAGEMENT INC 0.23% of their portfolio ST PETERSBURG, FL 491,003491.0k $34.5m $34.5m 0.23% —
28 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 467,880467.9k $32.9m $32.9m 0.00% —
29 SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 2.67% of their portfolio Boston, MA 459,091459.1k $32.3m $32.3m 2.67% —
30 RENAISSANCE TECHNOLOGIES LLC 0.04% of their portfolio NEW YORK, NY 450,431450.4k $31.7m $31.7m 0.04% —
31 PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio DES MOINES, IA 442,741442.7k $31.1m $31.1m 0.02% —
32 Private Capital Management, LLC 4.32% of their portfolio NAPLES, FL 402,805402.8k $28.3m $28.3m 4.32% —
33 Fisher Asset Management, LLC 0.02% of their portfolio PLANO, TX 389,798389.8k $27.4m $27.4m 0.02% —
34 MACQUARIE GROUP LTD 0.03% of their portfolio Sydney, NSW 2000, C3 388,916388.9k $27.4m $27.4m 0.03% —
35 CONGRESS ASSET MANAGEMENT CO 0.28% of their portfolio BOSTON, MA 374,133374.1k $26.3m $26.3m 0.28% —
36 EMERALD ADVISERS, LLC 1.35% of their portfolio LEOLA, PA 372,708372.7k $26.2m $26.2m 1.35% —
37 GOLDMAN SACHS GROUP INC 0.01% of their portfolio NEW YORK, NY 365,874365.9k $25.7m $25.7m 0.01% —
38 AMERIPRISE FINANCIAL INC 0.01% of their portfolio MINNEAPOLIS, MN 345,341345.3k $24.3m $24.3m 0.01% —
39 REINHART PARTNERS, LLC. 1.49% of their portfolio MEQUON, WI 344,558344.6k $24.2m $24.2m 1.49% —
40 FRONTIER CAPITAL MANAGEMENT CO LLC 0.28% of their portfolio Boston, MA 338,242338.2k $23.8m $23.8m 0.28% —
41 FULLER & THALER ASSET MANAGEMENT, INC. 0.17% of their portfolio SAN MATEO, CA 336,173336.2k $23.6m $23.6m 0.17% —
42 PRUDENTIAL FINANCIAL INC 0.04% of their portfolio NEWARK, NJ 326,212326.2k $22.9m $22.9m 0.04% —
43 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 312,550312.6k $22.0m $22.0m 0.00% —
44 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.03% of their portfolio BOSTON, MA 305,897305.9k $21.5m $21.5m 0.03% —
45 EMERALD MUTUAL FUND ADVISERS TRUST 1.35% of their portfolio LEOLA, PA 303,253303.3k $21.3m $21.3m 1.35% —
46 Telemark Asset Management, LLC 3.31% of their portfolio BOSTON, MA 300,000300.0k $21.1m $21.1m 3.31% —
47 ROYAL BANK OF CANADA 0.01% of their portfolio TORONTO, A6 299,884299.9k $21.1m $21.1m 0.01% —
48 NORGES BANK 0.01% of their portfolio OSLO, Q8 280,846280.8k $19.8m $19.8m 0.01% —
49 Clearbridge Investments, LLC 0.02% of their portfolio NEW YORK, NY 256,295256.3k $18.0m $18.0m 0.02% —
50 LOOMIS SAYLES & CO L P 0.04% of their portfolio BOSTON, MA 251,162251.2k $17.7m $17.7m 0.04% —
51 FEDERATED HERMES, INC. 0.05% of their portfolio PITTSBURGH, PA 249,919249.9k $17.6m $17.6m 0.05% —
52 VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.09% of their portfolio JUPITER, FL 241,425241.4k $17.0m $17.0m 0.09% —
53 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio ALBANY, NY 237,944237.9k $7.0m $7.0m 0.02% —
54 BNP PARIBAS FINANCIAL MARKETS 0.04% of their portfolio PARIS, I0 232,350232.3k $16.3m $16.3m 0.04% —
55 Tekla Capital Management LLC 0.66% of their portfolio Boston, MA 229,179229.2k $16.1m $16.1m 0.66% —
56 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 213,623213.6k $15.0m $15.0m 0.00% —
57 PEREGRINE CAPITAL MANAGEMENT LLC 0.48% of their portfolio MINNEAPOLIS, MN 212,268212.3k $14.9m $14.9m 0.48% —
58 Tamarack Advisers, LP 8.64% of their portfolio CARLSBAD, CA 208,000208.0k $14.6m $14.6m 8.64% —
59 Eversept Partners, LP 1.73% of their portfolio NEW YORK, NY 206,893206.9k $14.6m $14.6m 1.73% —
60 Velan Capital Investment Management LP 16.46% of their portfolio ALPHARETTA, GA 200,000200.0k $14.1m $14.1m 16.46% —
61 Legal & General Group Plc 0.01% of their portfolio London, X0 196,440196.4k $13.8m $13.8m 0.01% —
62 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.03% of their portfolio BALA CYNWYD, PA 194,785194.8k $13.7m $13.7m 0.03% —
63 OBERWEIS ASSET MANAGEMENT INC/ 3.19% of their portfolio LISLE, IL 193,950193.9k $13.6m $13.6m 3.19% —
64 VOYA INVESTMENT MANAGEMENT LLC 0.02% of their portfolio ATLANTA, GA 192,516192.5k $13.5m $13.5m 0.02% —
65 RHUMBLINE ADVISERS 0.02% of their portfolio BOSTON, MA 191,432191.4k $13.5m $13.5m 0.02% —
66 Penn Capital Management Company, LLC 1.43% of their portfolio PHILADELPHIA, PA 181,495181.5k $12.8m $12.8m 1.43% —
67 NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio ALBANY, NY 181,228181.2k $12.7m $12.7m 0.02% —
68 PANAGORA ASSET MANAGEMENT INC 0.09% of their portfolio BOSTON, MA 180,268180.3k $12.7m $12.7m 0.09% —
69 Cubist Systematic Strategies, LLC 0.09% of their portfolio STAMFORD, CT 180,173180.2k $12.7m $12.7m 0.09% —
70 Resolute Capital Asset Partners LLC 11.36% of their portfolio DENVER, CO 180,000180.0k $12.7m $12.7m 11.36% —
71 SEI INVESTMENTS CO 0.03% of their portfolio OAKS, PA 177,770177.8k $12.5m $12.5m 0.03% —
72 COMERICA BANK 0.11% of their portfolio DALLAS, TX 175,964176.0k $12.8m $12.8m 0.11% —
73 J.P. Morgan Private Wealth Advisors LLC 0.03% of their portfolio SAN FRANCISCO, CA 169,884169.9k $11.9m $11.9m 0.03% —
74 Swiss National Bank 0.01% of their portfolio ZURICH, V8 162,754162.8k $11.4m $11.4m 0.01% —
75 Mesirow Institutional Investment Management, Inc. 1.62% of their portfolio CHICAGO, IL 159,003159.0k $11.2m $11.2m 1.62% —
76 INTRINSIC EDGE CAPITAL MANAGEMENT LLC 1.21% of their portfolio CHICAGO, IL 154,962155.0k $10.9m $10.9m 1.21% —
77 AXIOM INVESTORS LLC /DE 0.23% of their portfolio GREENWICH, CT 154,155154.2k $10.8m $10.8m 0.23% —
78 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.03% of their portfolio Boston, MA 150,000150.0k $10.6m $10.6m 0.03% —
79 ISZO CAPITAL MANAGEMENT LP 16.43% of their portfolio NEW YORK, NY 136,250136.2k $9.6m $9.6m 16.43% —
80 Affinity Asset Advisors, LLC 4.21% of their portfolio NEW YORK, NY 130,000130.0k $9.1m $9.1m 4.21% —
81 Public Sector Pension Investment Board 0.08% of their portfolio MONTREAL, A8 126,005126.0k $8.9m $8.9m 0.08% —
82 ROYCE & ASSOCIATES LP 0.10% of their portfolio New York, NY 125,800125.8k $8.8m $8.8m 0.10% —
83 PURA VIDA INVESTMENTS, LLC 1.31% of their portfolio NEW YORK, NY 123,765123.8k $8.7m $8.7m 1.31% —
84 California Public Employees Retirement System 0.01% of their portfolio Sacramento, CA 123,628123.6k $8.7m $8.7m 0.01% —
85 SECTORAL ASSET MANAGEMENT INC 1.60% of their portfolio MONTREAL, A8 115,687115.7k $8.1m $8.1m 1.60% —
86 KENNEDY CAPITAL MANAGEMENT LLC 0.22% of their portfolio ST LOUIS, MO 107,264107.3k $7.5m $7.5m 0.22% —
87 Bridgewater Associates, LP 0.04% of their portfolio Westport, CT 106,756106.8k $7.5m $7.5m 0.04% —
88 FIRST TRUST ADVISORS LP 0.01% of their portfolio Wheaton, IL 106,686106.7k $7.5m $7.5m 0.01% —
89 CANADA LIFE ASSURANCE Co 0.02% of their portfolio WINNIPEG, A2 100,015100.0k $7.0m $7.0m 0.02% —
90 TWO SIGMA ADVISERS, LP 0.02% of their portfolio NEW YORK, NY 95,80095.8k $6.7m $6.7m 0.02% —
91 SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.11% of their portfolio BALA CYNWYD, PA 94,63094.6k $6.7m $6.7m 0.11% —
92 Lisanti Capital Growth, LLC 0.88% of their portfolio NEW YORK, NY 93,62093.6k $6.6m $6.6m 0.88% —
93 COLONY GROUP LLC 0.12% of their portfolio Boston, MA 92,99493.0k $6.5m $6.5m 0.12% —
94 CW Advisors, LLC 0.17% of their portfolio BOSTON, MA 88,21788.2k $6.2m $6.2m 0.17% —
95 CIBC WORLD MARKET INC. 0.03% of their portfolio TORONTO, A6 87,89087.9k $6.2m $6.2m 0.03% —
96 CASTLEARK MANAGEMENT LLC 0.34% of their portfolio CHICAGO, IL 86,82086.8k $6.1m $6.1m 0.34% —
97 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 86,09286.1k $6.1m $6.1m 0.01% —
98 Pier Capital, LLC 1.04% of their portfolio STAMFORD, CT 86,08686.1k $6.1m $6.1m 1.04% —
99 Global IMC LLC 1.60% of their portfolio SOLANA BEACH, CA 85,76685.8k $6.0m $6.0m 1.60% —
100 Hillsdale Investment Management Inc. 0.53% of their portfolio Toronto, A6 83,30083.3k $5.9m $5.9m 0.53% —