Vault-13

TSS INC DEL TSSI

COM · Common Stock · CUSIP 87288V101

110 institutional holders +17 vs Q4 2025
9,846,8359.8m shares reported held*
35.5% of all shares outstanding*
$128.1mreported value*
32 new 37 added 20 reduced 19 sold out net bought ≈ $17.1m (+1.3m 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: 27.8m as of 2026-03-11, 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 ≈ $13.01. Options: 8 managers hold calls ($21.2m notional), 5 hold puts ($2.9m).

Trends to Q1 2026

Institutional holders

Managers reporting a position, each quarter

050100150Q3 24: 1Q4 24: 52Q1 25: 66Q2 25: 97Q3 25: 100Q4 25: 93Q1 26: 110110Q3 24Q1 25Q3 25Q1 26
Numbers
QuarterHolders
Q3 20241
Q4 202452
Q1 202566
Q2 202597
Q3 2025100
Q4 202593
Q1 2026110

Buyers vs sellers

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

Bought or addedCut or sold out
1000100Q4 24: 48 bought or addedQ4 24: 0 cut or sold outQ4 24Q1 25: 50 bought or addedQ1 25: 22 cut or sold outQ1 25Q2 25: 77 bought or addedQ2 25: 39 cut or sold outQ2 25Q3 25: 69 bought or addedQ3 25: 48 cut or sold outQ3 25Q4 25: 53 bought or addedQ4 25: 49 cut or sold outQ4 25Q1 26: 69 bought or addedQ1 26: 39 cut or sold outQ1 26
Numbers
QuarterBought or addedCut or sold out
Q4 2024480
Q1 20255022
Q2 20257739
Q3 20256948
Q4 20255349
Q1 20266939

Calls vs puts

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

CallsPuts
$0$20m$40m$60mQ2 25 calls: $58.5mQ2 25 puts: $21.5mQ2 25P/C 0.37Q3 25 calls: $36.6mQ3 25 puts: $37.1mQ3 25P/C 1.01Q4 25 calls: $9.6mQ4 25 puts: $2.3mQ4 25P/C 0.24Q1 26 calls: $21.2mQ1 26 puts: $2.9mQ1 26P/C 0.14
Numbers
QuarterCallsPutsP/C
Q2 2025$58.5m$21.5m0.37
Q3 2025$36.6m$37.1m1.01
Q4 2025$9.6m$2.3m0.24
Q1 2026$21.2m$2.9m0.14

Biggest buyers

JANE STREET GROUP, LLC Added +417,039+417.0k
SILVERCREST ASSET MANAGEMENT GROUP LLC New +416,514+416.5k
MARSHALL WACE, LLP New +324,962+325.0k
BlackRock, Inc. Added +245,840+245.8k
UBS Group AG Added +205,142+205.1k
CenterBook Partners LP New +177,414+177.4k
LPL Financial LLC Added +155,023+155.0k
WELLS FARGO & COMPANY/MN Added +128,656+128.7k
Rockefeller Capital Management L.P. Added +114,213+114.2k
D. E. Shaw & Co., Inc. Added +111,677+111.7k

Biggest sellers

MILLENNIUM MANAGEMENT LLC Reduced -494,971-495.0k
CITADEL ADVISORS LLC Sold out -170,182-170.2k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced -91,724-91.7k
RENAISSANCE TECHNOLOGIES LLC Reduced -87,077-87.1k
Point72 Asset Management, L.P. Sold out -86,857-86.9k
Quantbot Technologies LP Reduced -63,825-63.8k
MORGAN STANLEY Reduced -51,534-51.5k
Arosa Capital Management LP Reduced -50,000-50.0k
K2 PRINCIPAL FUND, L.P. Sold out -50,000-50.0k
Verition Fund Management LLC Sold out -48,412-48.4k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $9.4m726.1k shares
CITADEL ADVISORS LLC Reduced $3.9m298.3k shares
IMC-Chicago, LLC Reduced $2.2m165.7k shares
SIMPLEX TRADING, LLC Added $2.0m154.0k shares
JANE STREET GROUP, LLC Added $1.3m101.1k shares
Point72 Asset Management, L.P. Reduced $1.1m81.6k shares
HRT FINANCIAL LP Added $833.0k64.1k shares
GROUP ONE TRADING LLC Reduced $508.7k39.1k shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $1.1m82.4k shares
CITADEL ADVISORS LLC Reduced $1.1m81.2k shares
IMC-Chicago, LLC Reduced $675.2k51.9k shares
GROUP ONE TRADING LLC Reduced $134.0k10.3k shares
SIMPLEX TRADING, LLC Reduced $5.2k400 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
BlackRock, Inc. 13G · institution +1.4 pts · filed 2026-07-30 6.7% +1.4 pts 1.9m≈ $23.1m 2026-07-30
JANE STREET GROUP, LLC 13G · passive investor new · filed 2026-06-01 5.2% new 1.5m≈ $18.0m 2026-06-01

Insider purchases and sales in Q1 2026

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
505Q2 24: 1 buyingQ2 24: 0 sellingQ3 24: 0 buyingQ3 24: 4 sellingQ3 24Q4 24: 0 buyingQ4 24: 5 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 1 sellingQ3 25: 0 buyingQ3 25: 2 sellingQ3 25Q4 25: 1 buyingQ4 25: 1 sellingQ1 26: 0 buyingQ1 26: 1 sellingQ1 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q2 20241—0——
Q3 20240—4$4.2m—
Q4 20240—5$6.7m—
Q1 20250—0——
Q2 20250—1$660.1k—
Q3 20250—2$1.1m—
Q4 20251$40.0k1$444.7k—
Q1 20260—1$147.2k—
DateInsiderTradeSharesPrice ValueTheir holding
2026-03-16 Brennan Kieran Senior Vice President Sold 12,000 $12.27 $147.2k12.0k shares -4%

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, Q1 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock, Inc. 0.00% of their portfolio New York, NY 1,770,8901.8m $23.0m $23.0m 0.00% Added +245.8k +245,840
2 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 968,440968.4k $12.6m $12.6m 0.00% First filing
3 JANE STREET GROUP, LLC 0.01% of their portfolio NEW YORK, NY 658,081658.1k $8.6m $8.6m 0.01% Added +417.0k +417,039
4 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 575,609575.6k $7.5m $7.5m 0.00% Added +36.2k +36,250
5 UBS Group AG 0.00% of their portfolio ZURICH, V8 521,598521.6k $6.8m $6.8m 0.00% Added +205.1k +205,142
6 Value Aligned Research Advisors, LLC 0.07% of their portfolio PRINCETON, NJ 460,510460.5k $6.0m $6.0m 0.07% Unchanged
7 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 425,254425.3k $5.5m $5.5m 0.00% Added +60.3k +60,340
8 SILVERCREST ASSET MANAGEMENT GROUP LLC 0.04% of their portfolio NEW YORK, NY 416,514416.5k $5.4m $5.4m 0.04% New
9 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 370,379370.4k $4.8m $4.8m 0.00% Reduced -495.0k -494,971
10 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 342,848342.8k $4.5m $4.5m 0.00% Added +155.0k +155,023
11 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 324,962325.0k $4.2m $4.2m 0.00% New
12 Rockefeller Capital Management L.P. 0.01% of their portfolio NEW YORK, NY 216,883216.9k $2.8m $2.8m 0.01% Added +114.2k +114,213
13 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 185,901185.9k $2.4m $2.4m 0.00% Added +111.7k +111,677
14 CenterBook Partners LP 0.12% of their portfolio GREENWICH, CT 177,414177.4k $2.3m $2.3m 0.12% New
15 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 173,472173.5k $2.3m $2.3m 0.00% Added +128.7k +128,656
16 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 165,351165.4k $2.2m $2.2m 0.00% Added +4.3k +4,279
17 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 159,977160.0k $2.1m $2.1m 0.00% First filing
18 Arosa Capital Management LP 1.27% of their portfolio MIAMI BEACH, FL 150,000150.0k $2.0m $2.0m 1.27% Reduced -50.0k -50,000
19 VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 130,988131.0k $1.7m $1.7m 0.00% First filing
20 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 124,020124.0k $1.6m $1.6m 0.00% Added +65.1k +65,089
21 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 114,277114.3k $1.5m $1.5m 0.00% Reduced -51.5k -51,534
22 Dupree Financial Group, LLC 0.49% of their portfolio LEXINGTON, KY 94,27494.3k $1.2m $1.2m 0.49% Reduced -2.5k -2,512
23 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 61,84561.8k $804.6k $804.6k 0.00% Added +2.8k +2,837
24 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 61,01261.0k $793.8k $793.8k 0.00% Reduced -3.1k -3,072
25 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 60,09160.1k $781.8k $781.8k 0.00% Reduced -87.1k -87,077
26 GROUP ONE TRADING LLC 0.02% of their portfolio CHICAGO, IL 56,66556.7k $737.2k $737.2k 0.02% New
27 CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio RALEIGH, NC 51,47651.5k $669.7k $669.7k 0.00% New
28 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 49,51849.5k $644.2k $644.2k 0.00% Reduced -43.4k -43,428
29 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 41,17341.2k $535.7k $535.7k 0.00% Added +284 +284
30 WEXFORD CAPITAL LP 0.09% of their portfolio WEST PALM BEACH, FL 40,00040.0k $520.4k $520.4k 0.09% New
31 IMC-Chicago, LLC 0.01% of their portfolio CHICAGO, IL 39,42939.4k $513.0k $513.0k 0.01% Added +6.1k +6,136
32 GSA CAPITAL PARTNERS LLP 0.03% of their portfolio LONDON, X0 39,03239.0k $508.0k $508.0k 0.03% Added +27.6k +27,619
33 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 35,36935.4k $460.1k $460.1k 0.00% Added +2.4k +2,426
34 Kestra Advisory Services, LLC 0.00% of their portfolio AUSTIN, TX 35,10035.1k $456.7k $456.7k 0.00% Reduced -10.0k -10,000
35 XTX Topco Ltd 0.01% of their portfolio LONDON, X0 34,26334.3k $445.8k $445.8k 0.01% Reduced -26.8k -26,835
36 Centiva Capital, LP 0.02% of their portfolio New York, NY 32,23332.2k $419.4k $419.4k 0.02% New
37 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 32,13132.1k $418.0k $418.0k 0.00% Added +21.4k +21,379
38 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 25,84925.8k $336.0k $336.0k 0.00% Added +11.4k +11,365
39 Pinnacle Wealth Planning Services, Inc. 0.03% of their portfolio MANSFIELD, OH 25,00025.0k $325.2k $325.2k 0.03% Unchanged
40 CREATIVE FINANCIAL DESIGNS INC /ADV 0.02% of their portfolio KOKOMO, IN 24,65024.6k $320.7k $320.7k 0.02% Reduced -11.2k -11,200
41 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 24,25624.3k $315.6k $315.6k 0.00% Added +547 +547
42 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 23,70023.7k $167.6k $167.6k 0.00% Unchanged
43 J.W. COLE ADVISORS, INC. 0.01% of their portfolio TAMPA, FL 23,33023.3k $303.5k $303.5k 0.01% Reduced -3.1k -3,100
44 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 23,03423.0k $299.7k $299.7k 0.00% Added +4.0k +4,026
45 Cetera Investment Advisers 0.00% of their portfolio SCHAUMBURG, IL 22,97323.0k $298.9k $298.9k 0.00% Reduced -4.5k -4,504
46 Mesirow Financial Investment Management, Inc. 0.00% of their portfolio CHICAGO, IL 22,64322.6k $294.6k $294.6k 0.00% New
47 Trexquant Investment LP 0.00% of their portfolio STAMFORD, CT 22,08722.1k $287.4k $287.4k 0.00% New
48 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 21,05421.1k $273.9k $273.9k 0.00% Added +7.0k +6,956
49 Quantinno Capital Management LP 0.00% of their portfolio NEW YORK, NY 20,04020.0k $260.7k $260.7k 0.00% New
50 STIFEL FINANCIAL CORP 0.00% of their portfolio ST. LOUIS, MO 16,16616.2k $210.3k $210.3k 0.00% Unchanged
51 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 15,23215.2k $198.2k $198.2k 0.00% Reduced -2.0k -1,999
52 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 15,02715.0k $196.0k $196.0k 0.00% New
53 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 14,97215.0k $194.8k $194.8k 0.00% Added +692 +692
54 Brevan Howard Capital Management LP 0.00% of their portfolio ST. HELIER, Y9 14,77714.8k $192.2k $192.2k 0.00% New
55 Pekin Hardy Strauss, Inc. 0.02% of their portfolio CHICAGO, IL 14,50014.5k $188.6k $188.6k 0.02% New
56 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 14,42914.4k $187.7k $187.7k 0.00% Reduced -91.7k -91,724
57 BOOTHBAY FUND MANAGEMENT, LLC 0.00% of their portfolio NEW YORK, NY 14,24214.2k $185.3k $185.3k 0.00% New
58 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 13,56413.6k $176.5k $176.5k 0.00% New
59 Cerity Partners LLC 0.00% of their portfolio NEW YORK, NY 13,21413.2k $171.9k $171.9k 0.00% New
60 LJI Wealth Management, LLC 0.03% of their portfolio INDIANAPOLIS, IN 12,50012.5k $162.6k $162.6k 0.03% New
61 VESTOR CAPITAL, LLC 0.01% of their portfolio CHICAGO, IL 12,00012.0k $156.0k $156.0k 0.01% Added +11.4k +11,364
62 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 11,24311.2k $146.3k $146.3k 0.00% Unchanged
63 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 11,08611.1k $144.2k $144.2k 0.00% Reduced -21.8k -21,831
64 MONECO ADVISORS, LLC 0.01% of their portfolio FAIRFIELD, CT 10,98011.0k $142.8k $142.8k 0.01% Unchanged
65 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 10,55410.6k $137.3k $137.3k 0.00% Reduced -14.7k -14,686
66 ALGERT GLOBAL LLC 0.00% of their portfolio SAN FRANCISCO, CA 10,49010.5k $136.5k $136.5k 0.00% New
67 INDEPENDENT FINANCIAL GROUP, LLC 0.00% of their portfolio SAN DIEGO, CA 10,30010.3k $134.0k $134.0k 0.00% New
68 Integrated Wealth Concepts LLC 0.00% of their portfolio WALTHAM, MA 10,28010.3k $133.7k $133.7k 0.00% New
69 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 10,08110.1k $119.2k $119.2k 0.00% Added +1.4k +1,448
70 DIVERSIFIED TRUST CO 0.00% of their portfolio MEMPHIS, TN 10,00010.0k $130.1k $130.1k 0.00% New
71 Foundations Investment Advisors, LLC 0.00% of their portfolio PHOENIX, AZ 10,00010.0k $130.1k $130.1k 0.00% New
72 CURA WEALTH ADVISORS, LLC 0.06% of their portfolio CHICAGO, IL 10,00010.0k $130.1k $130.1k 0.06% New
73 CapitalatWork S.A. 0.00% of their portfolio AUDERGHEM, C9 10,00010.0k $130.0k $130.0k 0.00% Unchanged
74 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 9,99910.0k $130.1k $130.1k 0.00% Added +238 +238
75 Advisory Services Network, LLC 0.00% of their portfolio ATLANTA, GA 9,7599.8k $127.0k $127.0k 0.00% New
76 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 8,8368.8k $115.0k $115.0k 0.00% First filing
77 FMR LLC 0.00% of their portfolio BOSTON, MA 7,0827.1k $92.1k $92.1k 0.00% Added +3.4k +3,358
78 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 6,5386.5k $85.1k $85.1k 0.00% Added +5.9k +5,930
79 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 5,8005.8k $75.5k $75.5k 0.00% Unchanged
80 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 5,4225.4k $70.5k $70.5k 0.00% Unchanged
81 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 4,7794.8k $62.2k $62.2k 0.00% Added +209 +209
82 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 4,0954.1k $53.3k $53.3k 0.00% Reduced -35.4k -35,408
83 TORONTO DOMINION BANK 0.00% of their portfolio TORONTO, ONTARIO, A6 3,0003.0k $39.0k $39.0k 0.00% Unchanged
84 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 2,7012.7k $35.1k $35.1k 0.00% Reduced -951 -951
85 Quantbot Technologies LP 0.00% of their portfolio NEW YORK, NY 2,6402.6k $34.3k $34.3k 0.00% Reduced -63.8k -63,825
86 Legal & General Group Plc 0.00% of their portfolio London, X0 2,1222.1k $27.6k $27.6k 0.00% Added +89 +89
87 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 1,8631.9k $24.2k $24.2k 0.00% Unchanged
88 Innovative Asset Advisors Group, LLC 0.01% of their portfolio SHELTON, CT 1,5001.5k $19.5k $19.5k 0.01% First filing
89 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 1,2291.2k $16.0k $16.0k 0.00% Reduced -64 -64
90 CWM, LLC 0.00% of their portfolio OMAHA, NE 1,2221.2k $15.9k $15.9k 0.00% Added +1.2k +1,221
91 Rialto Wealth Management, LLC 0.00% of their portfolio SYRACUSE, NY 917917 $11.9k $11.9k 0.00% Unchanged
92 VALLEY NATIONAL ADVISERS INC 0.00% of their portfolio BETHLEHEM, PA 800800 $10.0k $10.0k 0.00% New
93 USA FINANCIAL FORMULAS 0.00% of their portfolio ADA, MI 653653 $8.5k $8.5k 0.00% Added +565 +565
94 GAMMA Investing LLC 0.00% of their portfolio FOSTER CITY, CA 638638 $8.3k $8.3k 0.00% Added +402 +402
95 Farther Finance Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 609609 $8.5k $8.5k 0.00% Added +608 +608
96 Kemnay Advisory Services Inc. 0.00% of their portfolio New York, NY 515515 $6.7k $6.7k 0.00% New
97 FINANCIAL CONSULATE, INC 0.00% of their portfolio HUNT VALLEY, MD 500500 $6.5k $6.5k 0.00% Unchanged
98 MAI Capital Management 0.00% of their portfolio INDEPENDENCE, OH 484484 $6.3k $6.3k 0.00% Added +75 +75
99 Essential Partners LLC 0.00% of their portfolio RANCHO SANTA FE, CA 429429 $5.6k $5.6k 0.00% New
100 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 387387 $5.0k $5.0k 0.00% Unchanged