Vault-13

MILESTONE PHARMACEUTICALS IN MIST

COM · Common Stock · CUSIP 59935V107

57 institutional holders +10 vs Q3 2022
24,072,23924.1m shares reported held*
70.2% of all shares outstanding*
$96.5mreported value*
22 new 17 added 7 reduced 15 sold out net bought ≈ $3.3m (+187.7k 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 ($359.9k this quarter). Holder counts are more reliable. Shares outstanding: 34.3m as of 2022-11-10, 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 ≈ $4.01. Options: 6 managers hold calls ($1.9m notional), 3 hold puts ($468.5k).

Trends to Q4 2022

Institutional holders

Managers reporting a position, each quarter

0204060Q3 22: 47Q4 22: 5757Q3 22Q4 22
Numbers
QuarterHolders
Q3 202247
Q4 202257

Calls vs puts

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

CallsPuts
$0$5m$10m$15mQ3 22 calls: $11.6mQ3 22 puts: $9.1mQ3 22P/C 0.79Q4 22 calls: $1.9mQ4 22 puts: $468.5kQ4 22P/C 0.24
Numbers
QuarterCallsPutsP/C
Q3 2022$11.6m$9.1m0.79
Q4 2022$1.9m$468.5k0.24

Biggest buyers

GOLDMAN SACHS GROUP INC Added +2,542,619+2.5m
BlackRock Inc. Added +1,727,824+1.7m
MILLENNIUM MANAGEMENT LLC Added +1,061,931+1.1m
Point72 Asset Management, L.P. New +875,000+875.0k
Bleichroeder LP Added +813,585+813.6k
Alta Fundamental Advisers LLC New +565,461+565.5k
MARSHALL WACE, LLP Added +390,642+390.6k
JPMORGAN CHASE & CO Added +276,049+276.0k
CITADEL ADVISORS LLC Added +203,032+203.0k
TWO SIGMA INVESTMENTS, LP New +194,343+194.3k

Biggest sellers

RA CAPITAL MANAGEMENT, L.P. Sold out -2,246,503-2.2m
NOVO HOLDINGS A/S Sold out -2,000,000-2.0m
Lion Point Capital, LP Reduced -1,132,026-1.1m
JANUS HENDERSON GROUP PLC Sold out -1,120,336-1.1m
GREAT POINT PARTNERS LLC Sold out -674,656-674.7k
Paradigm Biocapital Advisors LP Sold out -634,211-634.2k
ACUTA CAPITAL PARTNERS, LLC Sold out -597,026-597.0k
Ikarian Capital, LLC Reduced -395,200-395.2k
PURA VIDA INVESTMENTS, LLC Reduced -224,743-224.7k
Venrock Adviser, LLC Reduced -216,925-216.9k

Biggest calls

MILLENNIUM MANAGEMENT LLC Added $792.0k200.0k shares
CSS LLC/IL Added $391.6k98.9k shares
GROUP ONE TRADING LLC Added $357.6k90.3k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $351.3k88.7k shares
SIMPLEX TRADING, LLC Reduced $55.0k14.1k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

GROUP ONE TRADING LLC Added $435.6k110.0k shares
CITADEL ADVISORS LLC Reduced $32.9k8.3k 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
RTW INVESTMENTS, LP 13G · institution no change · filed 2026-05-15 9.9% no change 12.4m≈ $16.6m 2026-05-15
Propel Bio Management, LLC 13G · passive investor new · filed 2025-12-23 9.9% new 8.9m≈ $11.9m 2025-12-23
Pavaki Capital Management LLC 13G · passive investor new · filed 2026-08-07 7.3% new 9.1m≈ $12.2m 2026-08-07
Adage Capital Management, L.P. 13G · institution -3.6 pts · filed 2026-05-13 6.4% -3.6 pts 8.0m≈ $10.7m 2026-05-13

Fell to 5% or below in the last year: Trails Edge Capital Partners, LP (4.3%, 2026-03-26)

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
505Q1 21: 0 buyingQ1 21: 0 sellingQ2 21: 0 buyingQ2 21: 0 sellingQ2 21Q3 21: 0 buyingQ3 21: 0 sellingQ4 21: 0 buyingQ4 21: 0 sellingQ4 21Q1 22: 0 buyingQ1 22: 0 sellingQ2 22: 1 buyingQ2 22: 0 sellingQ2 22Q3 22: 0 buyingQ3 22: 0 sellingQ4 22: 5 buyingQ4 22: 0 sellingQ4 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—0——
Q1 20220—0——
Q2 20221$28.0k0——
Q3 20220—0——
Q4 20225$327.1k0——
DateInsiderTradeSharesPrice ValueTheir holding
2022-12-05 Bharucha David Chief Medical Officer Bought 7,000 $4.69 $32.8k7.0k shares +233%
2022-12-01 Bharucha David Chief Medical Officer Bought 3,000 $4.86 $14.6k3.0k shares new
2022-10-21 Liebert Debra K. Director · By: Trust Bought 4,000 $5.26 $21.0k4.0k shares new
2022-10-20 Liebert Debra K. Director · By: The Rodriguez and Liebert Revocable Trust Bought 10,000 $5.29 $52.9k10.0k shares new
2022-10-20 Pasternak Richard C Director Bought 10,000 $5.20 $52.0k10.0k shares new
2022-10-19 TOMSICEK MICHAEL JOHN Director Bought 15,000 $5.32 $79.8k15.0k shares new
2022-10-19 Wills Robert James Director Bought 15,000 $4.93 $74.0k15.0k shares new

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 RTW INVESTMENTS, LP 0.35% of their portfolio NEW YORK, NY 4,315,1024.3m $17.1m $17.1m 0.35% Unchanged
2 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 2,647,1162.6m $10.5m $10.5m 0.00% Added +2.5m +2,542,619
3 Venrock Adviser, LLC 1.47% of their portfolio NEW YORK, NY 2,208,8122.2m $8.7m $8.7m 1.47% Reduced -216.9k -216,925
4 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 1,995,0292.0m $7.9m $7.9m 0.01% Added +1.1m +1,061,931
5 BlackRock Inc. 0.00% of their portfolio New York, NY 1,727,8291.7m $6.8m $6.8m 0.00% Added +1.7m +1,727,824
6 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 1,330,1881.3m $5.3m $5.3m 0.00% Added +89.9k +89,915
7 Bleichroeder LP 1.14% of their portfolio NEW YORK, NY 1,326,0851.3m $5.3m $5.3m 1.14% Added +813.6k +813,585
8 BRAIDWELL LP 0.15% of their portfolio STAMFORD, CT 1,164,8491.2m $4.6m $4.6m 0.15% First filing
9 Point72 Asset Management, L.P. 0.01% of their portfolio STAMFORD, CT 875,000875.0k $3.5m $3.5m 0.01% New
10 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 800,010800.0k $3.2m $3.2m 0.00% Added +203.0k +203,032
11 Boxer Capital, LLC 0.15% of their portfolio San Diego, CA 698,861698.9k $2.8m $2.8m 0.15% Unchanged
12 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 641,353641.4k $2.5m $2.5m 0.00% First filing
13 Alta Fundamental Advisers LLC 0.97% of their portfolio NEW YORK, NY 565,461565.5k $2.2m $2.2m 0.97% New
14 Ikarian Capital, LLC 0.76% of their portfolio DALLAS, TX 460,416460.4k $1.8m $1.8m 0.76% Reduced -395.2k -395,200
15 Lion Point Capital, LP 1.55% of their portfolio NEW YORK, NY 425,207425.2k $2.9m $2.9m 1.55% Reduced -1.1m -1,132,026
16 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 421,540421.5k $1.7m $1.7m 0.00% Added +390.6k +390,642
17 PURA VIDA INVESTMENTS, LLC 0.25% of their portfolio NEW YORK, NY 371,788371.8k $1.5m $1.5m 0.25% Reduced -224.7k -224,743
18 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 329,724329.7k $1.3m $1.3m 0.00% Added +276.0k +276,049
19 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 194,343194.3k $769.6k $769.6k 0.00% New
20 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 186,725186.7k $739.0k $739.0k 0.00% Added +113.5k +113,451
21 BML Capital Management, LLC 0.68% of their portfolio ZIONSVILLE, IN 180,000180.0k $712.8k $712.8k 0.68% First filing
22 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 152,636152.6k $610.5k $610.5k 0.00% Added +104.5k +104,536
23 Valeo Financial Advisors, LLC 0.02% of their portfolio CARMEL, IN 113,699113.7k $450.2k $450.2k 0.02% Added +38.2k +38,199
24 Affinity Asset Advisors, LLC 0.18% of their portfolio NEW YORK, NY 100,000100.0k $396.0k $396.0k 0.18% New
25 Cubist Systematic Strategies, LLC 0.00% of their portfolio STAMFORD, CT 90,89490.9k $359.9k $359.9k 0.00% Added +79.3k +79,294
26 Walleye Capital LLC 0.01% of their portfolio NEW YORK, NY 81,66081.7k $323.4k $323.4k 0.01% New
27 Schonfeld Strategic Advisors LLC 0.00% of their portfolio NEW YORK, NY 80,98581.0k $320.7k $320.7k 0.00% New
28 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 75,85775.9k $300.4k $300.4k 0.00% Added +3.2k +3,177
29 XTX Topco Ltd 0.06% of their portfolio LONDON, X0 69,45669.5k $275.0k $275.0k 0.06% New
30 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 67,20067.2k $266.0k $266.0k 0.00% New
31 BIT Capital GmbH 0.05% of their portfolio BERLIN, 2M 61,50061.5k $243.5k $243.5k 0.05% New
32 TWO SIGMA ADVISERS, LP 0.00% of their portfolio NEW YORK, NY 49,10049.1k $194.4k $194.4k 0.00% New
33 PEAK6 Investments LLC 0.01% of their portfolio CHICAGO, IL 39,95640.0k $158.2k $158.2k 0.01% New
34 OCCUDO QUANTITATIVE STRATEGIES LP 0.02% of their portfolio FORT LAUDERDALE, FL 39,12839.1k $154.9k $154.9k 0.02% New
35 LMR Partners LLP 0.00% of their portfolio LONDON, X0 38,49538.5k $152.4k $152.4k 0.00% Unchanged
36 Walleye Trading LLC 0.00% of their portfolio NEW YORK, NY 33,96534.0k $134.5k $134.5k 0.00% New
37 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 30,62730.6k $121.3k $121.3k 0.00% Added +26.4k +26,379
38 BOOTHBAY FUND MANAGEMENT, LLC 0.00% of their portfolio NEW YORK, NY 25,17625.2k $99.7k $99.7k 0.00% Reduced -48.6k -48,576
39 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 22,09322.1k $87.5k $87.5k 0.00% Added +97 +97
40 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 17,57617.6k $69.0k $69.0k 0.00% Unchanged
41 Virtu Financial LLC 0.01% of their portfolio New York, NY 15,77415.8k $62.0k $62.0k 0.01% New
42 Beta Wealth Group, Inc. 0.04% of their portfolio SAN DIEGO, CA 14,12714.1k $55.9k $55.9k 0.04% New
43 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 14,11914.1k $55.9k $55.9k 0.00% New
44 Corton Capital Inc. 0.04% of their portfolio Carrying Place, A6 13,72813.7k $54.4k $54.4k 0.04% New
45 Creative Planning 0.00% of their portfolio OVERLAND PARK, KS 13,08013.1k $51.8k $51.8k 0.00% New
46 Delphia (USA) Inc. 0.06% of their portfolio Toronto, A6 12,61012.6k $49.9k $49.9k 0.06% New
47 Federation des caisses Desjardins du Quebec 0.00% of their portfolio LEVIS, A8 10,50010.5k $41.6k $41.6k 0.00% Unchanged
48 UBS Group AG 0.00% of their portfolio ZURICH, V8 5,1855.2k $20.5k $20.5k 0.00% Added +1.9k +1,865
49 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 2,8852.9k $11.0k $11.0k 0.00% Added +283 +283
50 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 2,0002.0k $8.0k $8.0k 0.00% Unchanged
51 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 1,5001.5k $5.9k $5.9k 0.00% New
52 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 1,2471.2k $5.0k $5.0k 0.00% New
53 Cutler Group LLC / CA 0.00% of their portfolio SAN FRANCISCO, CA 600600 $2.0k $2.0k 0.00% Reduced -3.3k -3,337
54 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 137137 $543 $543 0.00% Unchanged
55 NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio MONTREAL, A8 100100 $396 $396 0.00% Reduced -2.8k -2,780
56 Mascoma Wealth Management LLC 0.00% of their portfolio HANOVER, NH 100100 $396 $396 0.00% New
57 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged