Vault-13

SILK RD MED INC SILK

COM · Common Stock · CUSIP 82710M100 · ISIN US82710M1009

196 institutional holders -3 vs Q4 2022
44,485,81744.5m shares reported held*
$1.7bnreported value*
28 new 90 added 45 reduced 31 sold out net bought ≈ $137.9m (+3.5m 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 ($2.2m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $39.11. Options: 6 managers hold calls ($3.6m notional), 4 hold puts ($668.6k).

Trends to Q1 2023

Institutional holders

Managers reporting a position, each quarter

0100200Q3 22: 147Q4 22: 199Q1 23: 196196Q3 22Q4 22Q1 23
Numbers
QuarterHolders
Q3 2022147
Q4 2022199
Q1 2023196

Buyers vs sellers

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

Bought or addedCut or sold out
2000200Q4 22: 123 bought or addedQ4 22: 52 cut or sold outQ4 22Q1 23: 118 bought or addedQ1 23: 76 cut or sold outQ1 23
Numbers
QuarterBought or addedCut or sold out
Q4 202212352
Q1 202311876

Calls vs puts

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

CallsPuts
$0$5m$10m$15m$20mQ3 22 calls: $16.6mQ3 22 puts: $302.0kQ3 22P/C 0.02Q4 22 calls: $7.7mQ4 22 puts: $280.1kQ4 22P/C 0.04Q1 23 calls: $3.6mQ1 23 puts: $668.6kQ1 23P/C 0.19
Numbers
QuarterCallsPutsP/C
Q3 2022$16.6m$302.0k0.02
Q4 2022$7.7m$280.1k0.04
Q1 2023$3.6m$668.6k0.19

Biggest buyers

FRED ALGER MANAGEMENT, LLC New +1,022,542+1.0m
MARSHALL WACE, LLP Added +424,811+424.8k
CITADEL ADVISORS LLC Added +409,557+409.6k
RENAISSANCE TECHNOLOGIES LLC Added +336,200+336.2k
DEERFIELD MANAGEMENT COMPANY, L.P. Added +329,000+329.0k
MILLENNIUM MANAGEMENT LLC Added +312,583+312.6k
JENNISON ASSOCIATES LLC Added +220,833+220.8k
TWO SIGMA INVESTMENTS, LP Added +208,746+208.7k
MORGAN STANLEY Added +201,111+201.1k
NORGES BANK Added +198,100+198.1k

Biggest sellers

TimesSquare Capital Management, LLC Reduced -557,095-557.1k
JANUS HENDERSON GROUP PLC Reduced -534,555-534.6k
BRAIDWELL LP Reduced -353,486-353.5k
LORD, ABBETT & CO. LLC Reduced -260,212-260.2k
Amundi Reduced -236,359-236.4k
Lisanti Capital Growth, LLC Sold out -218,655-218.7k
ALLIANCEBERNSTEIN L.P. Reduced -154,924-154.9k
PRINCIPAL FINANCIAL GROUP INC Reduced -112,525-112.5k
MACQUARIE GROUP LTD Reduced -64,115-64.1k
CASTLEARK MANAGEMENT LLC Reduced -64,080-64.1k

Biggest calls

SIMPLEX TRADING, LLC Added $1.4m36.7k shares
JANE STREET GROUP, LLC New $1.1m27.2k shares
CITADEL ADVISORS LLC Added $813.9k20.8k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $270.0k6.9k shares
GROUP ONE TRADING LLC Reduced $7.8k200 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

MILLENNIUM MANAGEMENT LLC New $587.0k15.0k shares
CITADEL ADVISORS LLC Added $62.6k1.6k shares
SIMPLEX TRADING, LLC New $19.0k500 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.

Holders, Q1 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 3,641,9883.6m $142.5m $142.5m 0.00% Added +79.9k +79,878
2 WASATCH ADVISORS LP 0.79% of their portfolio SALT LAKE CITY, UT 3,244,5383.2m $127.0m $127.0m 0.79% Added +181.4k +181,397
3 Capital World Investors 0.02% of their portfolio LOS ANGELES, CA 2,966,7303.0m $116.1m $116.1m 0.02% Unchanged
4 BlackRock Inc. 0.00% of their portfolio New York, NY 2,682,1592.7m $105.0m $105.0m 0.00% Added +17.4k +17,397
5 ALLIANCEBERNSTEIN L.P. 0.04% of their portfolio NASHVILLE, TN 2,461,8712.5m $96.3m $96.3m 0.04% Reduced -154.9k -154,924
6 Clearbridge Investments, LLC 0.06% of their portfolio NEW YORK, NY 1,729,1011.7m $67.7m $67.7m 0.06% Added +56.5k +56,517
7 DEERFIELD MANAGEMENT COMPANY, L.P. 1.51% of their portfolio New York, NY 1,725,6401.7m $67.5m $67.5m 1.51% Added +329.0k +329,000
8 LORD, ABBETT & CO. LLC 0.11% of their portfolio JERSEY CITY, NJ 1,591,5321.6m $62.3m $62.3m 0.11% Reduced -260.2k -260,212
9 KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.16% of their portfolio LOS ANGELES, CA 1,371,6661.4m $53.7m $53.7m 0.16% Added +21.4k +21,352
10 AMERICAN CENTURY COMPANIES INC 0.04% of their portfolio KANSAS CITY, MO 1,359,0031.4m $51.7m $51.7m 0.04% Added +11.5k +11,514
11 Bellevue Group AG 0.61% of their portfolio ZURICH, V8 1,069,7391.1m $41.9m $41.9m 0.61% Added +57.2k +57,216
12 FRED ALGER MANAGEMENT, LLC 0.21% of their portfolio NEW YORK, NY 1,022,5421.0m $40.0m $40.0m 0.21% New
13 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 922,850922.9k $36.1m $36.1m 0.00% Added +81.6k +81,604
14 JENNISON ASSOCIATES LLC 0.03% of their portfolio NEW YORK, NY 896,956897.0k $35.1m $35.1m 0.03% Added +220.8k +220,833
15 Ensign Peak Advisors, Inc 0.08% of their portfolio SALT LAKE CITY, UT 888,103888.1k $34.8m $34.8m 0.08% Added +14.2k +14,158
16 MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio NEW YORK, NY 872,457872.5k $34.1m $34.1m 0.04% Added +312.6k +312,583
17 BAMCO INC /NY/ 0.09% of their portfolio NEW YORK, NY 785,281785.3k $30.7m $30.7m 0.09% Unchanged
18 MARSHALL WACE, LLP 0.07% of their portfolio LONDON, X0 741,464741.5k $29.0m $29.0m 0.07% Added +424.8k +424,811
19 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 725,331725.3k $28.4m $28.4m 0.00% Added +34.0k +33,968
20 BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.09% of their portfolio Paris, I0 673,248673.2k $26.3m $26.3m 0.09% Added +95.5k +95,516
21 NEXT CENTURY GROWTH INVESTORS LLC 2.84% of their portfolio PLYMOUTH, MN 659,305659.3k $25.8m $25.8m 2.84% Reduced -19.7k -19,661
22 CITADEL ADVISORS LLC 0.02% of their portfolio MIAMI, FL 563,537563.5k $22.1m $22.1m 0.02% Added +409.6k +409,557
23 Invesco Ltd. 0.01% of their portfolio ATLANTA, GA 542,237542.2k $21.2m $21.2m 0.01% Added +25.5k +25,460
24 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 514,727514.7k $20.1m $20.1m 0.00% Added +201.1k +201,111
25 RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio NEW YORK, NY 493,600493.6k $19.3m $19.3m 0.03% Added +336.2k +336,200
26 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio Boston, MA 454,886454.9k $17.8m $17.8m 0.01% Added +67.6k +67,575
27 Thrivent Financial for Lutherans 0.04% of their portfolio Minneapolis, MN 431,613431.6k $16.9m $16.9m 0.04% Added +10.7k +10,651
28 TimesSquare Capital Management, LLC 0.23% of their portfolio NEW YORK, NY 400,675400.7k $15.7m $15.7m 0.23% Reduced -557.1k -557,095
29 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 375,257375.3k $14.7m $14.7m 0.00% Added +99.2k +99,217
30 Allspring Global Investments Holdings, LLC 0.02% of their portfolio CHARLOTTE, NC 360,763360.8k $14.1m $14.1m 0.02% Added +15.7k +15,706
31 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 352,770352.8k $13.8m $13.8m 0.00% Added +9.2k +9,188
32 Cubist Systematic Strategies, LLC 0.12% of their portfolio STAMFORD, CT 334,857334.9k $13.1m $13.1m 0.12% Added +123.4k +123,428
33 PEREGRINE CAPITAL MANAGEMENT LLC 0.37% of their portfolio MINNEAPOLIS, MN 331,019331.0k $13.0m $13.0m 0.37% Added +64.3k +64,272
34 NORGES BANK 0.00% of their portfolio OSLO, Q8 295,500295.5k $11.6m $11.6m 0.00% Added +198.1k +198,100
35 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio NEW YORK, NY 286,224286.2k $11.2m $11.2m 0.01% Reduced -9.0k -9,025
36 TWO SIGMA INVESTMENTS, LP 0.03% of their portfolio NEW YORK, NY 283,776283.8k $11.1m $11.1m 0.03% Added +208.7k +208,746
37 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 282,332282.3k $11.0m $11.0m 0.00% Added +803 +803
38 NOVO HOLDINGS A/S 0.71% of their portfolio HELLERUP, G7 275,511275.5k $10.8m $10.8m 0.71% Unchanged
39 Parkman Healthcare Partners LLC 2.04% of their portfolio STAMFORD, CT 239,864239.9k $9.4m $9.4m 2.04% Added +146.6k +146,559
40 Rhenman & Partners Asset Management AB 0.95% of their portfolio Stockholm, V7 221,255221.3k $8.6m $8.6m 0.95% Added +25.4k +25,384
41 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 218,628218.6k $8.6m $8.6m 0.00% Added +43.8k +43,825
42 ArrowMark Colorado Holdings LLC 0.09% of their portfolio Denver, CO 212,895212.9k $8.3m $8.3m 0.09% Added +82.9k +82,862
43 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 205,460205.5k $8.0m $8.0m 0.00% Added +102.7k +102,661
44 GW&K Investment Management, LLC 0.06% of their portfolio BOSTON, MA 170,093170.1k $6.7m $6.7m 0.06% Added +22.4k +22,432
45 Pier Capital, LLC 0.95% of their portfolio STAMFORD, CT 159,358159.4k $6.2m $6.2m 0.95% Added +5.2k +5,181
46 Qube Research & Technologies Ltd 0.04% of their portfolio LONDON, X0 159,132159.1k $6.2m $6.2m 0.04% Added +104.8k +104,765
47 SEI INVESTMENTS CO 0.01% of their portfolio OAKS, PA 149,722149.7k $5.9m $5.9m 0.01% Added +54.3k +54,340
48 TWO SIGMA ADVISERS, LP 0.01% of their portfolio NEW YORK, NY 141,600141.6k $5.5m $5.5m 0.01% Added +129.7k +129,700
49 Engineers Gate Manager LP 0.23% of their portfolio NEW YORK, NY 138,483138.5k $5.4m $5.4m 0.23% Added +106.5k +106,505
50 Schonfeld Strategic Advisors LLC 0.05% of their portfolio NEW YORK, NY 129,889129.9k $5.1m $5.1m 0.05% Added +82.2k +82,204
51 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 127,519127.5k $5.0m $5.0m 0.00% Reduced -3.4k -3,433
52 Amundi 0.00% of their portfolio Paris, I0 124,196124.2k $4.9m $4.9m 0.00% Reduced -236.4k -236,359
53 SEGALL BRYANT & HAMILL, LLC 0.05% of their portfolio CHICAGO, IL 119,135119.1k $4.7m $4.7m 0.05% Reduced -22.1k -22,077
54 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 112,206112.2k $4.4m $4.4m 0.00% Reduced -36.1k -36,083
55 D. E. Shaw & Co., Inc. 0.01% of their portfolio New York, NY 105,682105.7k $4.1m $4.1m 0.01% Added +101.0k +101,040
56 BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio PARIS, I0 105,207105.2k $4.1m $4.1m 0.01% Added +53.1k +53,132
57 SECTORAL ASSET MANAGEMENT INC 0.72% of their portfolio MONTREAL, A8 95,58995.6k $3.7m $3.7m 0.72% Added +11.0k +11,000
58 CASTLEARK MANAGEMENT LLC 0.18% of their portfolio CHICAGO, IL 94,47094.5k $3.7m $3.7m 0.18% Reduced -64.1k -64,080
59 STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio MADISON, WI 94,11494.1k $3.7m $3.7m 0.01% Added +13.8k +13,821
60 Squarepoint Ops LLC 0.02% of their portfolio NEW YORK, NY 88,40588.4k $3.5m $3.5m 0.02% Added +69.8k +69,801
61 Jump Financial, LLC 0.14% of their portfolio Chicago, IL 86,20386.2k $3.4m $3.4m 0.14% Added +57.8k +57,750
62 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio BALA CYNWYD, PA 82,98383.0k $3.2m $3.2m 0.01% Added +76.8k +76,751
63 Swiss National Bank 0.00% of their portfolio ZURICH, V8 82,30082.3k $3.2m $3.2m 0.00% Reduced -2.8k -2,800
64 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 80,82480.8k $3.2m $3.2m 0.00% Added +810 +810
65 M&T Bank Corp 0.01% of their portfolio BUFFALO, NY 72,78372.8k $2.8m $2.8m 0.01% Reduced -212 -212
66 Bullseye Asset Management LLC 1.43% of their portfolio DENVER, CO 71,65271.7k $2.8m $2.8m 1.43% Unchanged
67 Trexquant Investment LP 0.08% of their portfolio STAMFORD, CT 71,18771.2k $2.8m $2.8m 0.08% Added +54.4k +54,438
68 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio COLUMBUS, OH 63,70163.7k $2.5m $2.5m 0.01% Added +7.8k +7,849
69 BRAIDWELL LP 0.08% of their portfolio STAMFORD, CT 63,33163.3k $2.5m $2.5m 0.08% Reduced -353.5k -353,486
70 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.03% of their portfolio New York, NY 63,24663.2k $2.5m $2.5m 0.03% Reduced -2.9k -2,915
71 FIRST TRUST ADVISORS LP 0.00% of their portfolio Wheaton, IL 60,10560.1k $2.4m $2.4m 0.00% Reduced -7.2k -7,150
72 TUDOR INVESTMENT CORP ET AL 0.04% of their portfolio STAMFORD, CT 59,63859.6k $2.3m $2.3m 0.04% Added +17.0k +16,961
73 MACQUARIE GROUP LTD 0.00% of their portfolio Sydney, NSW 2000, C3 57,96658.0k $2.3m $2.3m 0.00% Reduced -64.1k -64,115
74 Allianz Asset Management GmbH 0.00% of their portfolio MUNICH, 2M 57,21057.2k $2.2m $2.2m 0.00% New
75 Quantbot Technologies LP 0.15% of their portfolio NEW YORK, NY 55,71755.7k $2.2m $2.2m 0.15% Added +46.0k +45,956
76 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 51,97852.0k $2.0m $2.0m 0.00% Reduced -451 -451
77 CREDIT SUISSE AG/ 0.00% of their portfolio ZURICH, V8 50,51850.5k $2.0m $2.0m 0.00% Added +10.2k +10,157
78 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 50,22350.2k $2.0m $2.0m 0.00% Added +2.0k +2,021
79 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 47,45147.5k $1.9m $1.9m 0.00% Added +1.8k +1,806
80 PRUDENTIAL FINANCIAL INC 0.00% of their portfolio NEWARK, NJ 45,68045.7k $1.8m $1.8m 0.00% Reduced -26.9k -26,910
81 Bridgewater Associates, LP 0.01% of their portfolio Westport, CT 45,62345.6k $1.8m $1.8m 0.01% Added +1.8k +1,827
82 GABELLI FUNDS LLC 0.01% of their portfolio Rye, NY 45,00045.0k $1.8m $1.8m 0.01% Added +35.0k +35,000
83 Altium Capital Management LLC 1.05% of their portfolio NEW YORK, NY 45,00045.0k $1.8m $1.8m 1.05% New
84 State of New Jersey Common Pension Fund D 0.01% of their portfolio TRENTON, NJ 44,71744.7k $1.7m $1.7m 0.01% Unchanged
85 OCCUDO QUANTITATIVE STRATEGIES LP 0.15% of their portfolio FORT LAUDERDALE, FL 43,30743.3k $1.7m $1.7m 0.15% New
86 Quadrature Capital Ltd 0.04% of their portfolio LONDON, X0 41,64941.6k $1.6m $1.6m 0.04% Added +24.4k +24,363
87 ExodusPoint Capital Management, LP 0.02% of their portfolio NEW YORK, NY 41,01241.0k $1.6m $1.6m 0.02% Added +15.1k +15,060
88 Dynamic Technology Lab Private Ltd 0.15% of their portfolio SINGAPORE, U0 40,73240.7k $1.6m $1.6m 0.15% Added +30.9k +30,932
89 PDT Partners, LLC 0.21% of their portfolio New York, NY 39,92639.9k $1.6m $1.6m 0.21% Added +9 +9
90 OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.04% of their portfolio CHICAGO, IL 39,48239.5k $1.5m $1.5m 0.04% New
91 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 36,47836.5k $1.4m $1.4m 0.00% Reduced -53.1k -53,146
92 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 35,43435.4k $1.4m $1.4m 0.00% Added +26.4k +26,430
93 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 33,41733.4k $1.3m $1.3m 0.00% Reduced -979 -979
94 RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio ST PETERSBURG, FL 30,14230.1k $1.2m $1.2m 0.00% Reduced -2.3k -2,295
95 SIT INVESTMENT ASSOCIATES INC 0.03% of their portfolio Minneapolis, MN 28,35128.4k $1.1m $1.1m 0.03% Unchanged
96 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 27,66827.7k $1.1m $1.1m 0.00% Unchanged
97 EFG Asset Management (North America) Corp. 0.24% of their portfolio Portland, OR 27,63327.6k $1.1m $1.1m 0.24% Reduced -10.3k -10,331
98 Alberta Investment Management Corp 0.01% of their portfolio EDMONTON, A0 27,14427.1k $1.1m $1.1m 0.01% Unchanged
99 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 26,92526.9k $1.1m $1.1m 0.00% Added +6.9k +6,890
100 NOMURA ASSET MANAGEMENT CO LTD 0.01% of their portfolio TOKYO, M0 26,13926.1k $1.0m $1.0m 0.01% Unchanged