Crowding percentile withheld — no market cap for DSGX in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | PRICE T ROWE ASSOCIATES INC /MD/ | 6,264,8806.3M | $448M | 7.28% | TRIM -10% |
| 2 | 1832 Asset Management L.P. | 3,833,7933.8M | $274M | 4.46% | ADD 48% |
| 3 | JANUS HENDERSON GROUP PLC | 2,574,4682.6M | $184M | 2.99% | ADD 4% |
| 4 | MACKENZIE FINANCIAL CORP | 2,447,1472.4M | $175M | 2.84% | TRIM -27% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2,372,1802.4M | $170M | 2.76% | NEW† |
| 6 | T. Rowe Price Investment Management, Inc. | 2,183,4422.2M | $156M | 2.54% | ADD 285% |
| 7 | Conestoga Capital Advisors, LLC | 2,111,3202.1M | $151M | 2.45% | TRIM -16% |
| 8 | BANK OF MONTREAL /CAN/ | 1,526,0101.5M | $109M | 1.77% | TRIM -2% |
| 9 | MORGAN STANLEY | 1,488,6291.5M | $107M | 1.73% | TRIM -6% |
| 10 | Temasek Holdings (Private) Ltd | 1,464,1651.5M | $105M | 1.70% | — |
| 11 | GENEVA CAPITAL MANAGEMENT LLC | 1,328,0141.3M | $95M | 1.54% | TRIM -7% |
| 12 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1,258,1571.3M | $90M | 1.46% | TRIM -28% |
| 13 | Connor, Clark & Lunn Investment Management Ltd. | 1,215,6781.2M | $87M | 1.41% | ADD 140% |
| 14 | Waratah Capital Advisors Ltd. | 1,189,4821.2M | $85M | 1.38% | ADD 969% |
| 15 | PRIMECAP MANAGEMENT CO/CA/ | 1,178,4401.2M | $84M | 1.37% | — |
| 16 | TWO SIGMA INVESTMENTS, LP | 1,132,6591.1M | $81M | 1.32% | ADD 173% |
| 17 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 1,100,7551.1M | $79M | 1.28% | ADD 141% |
| 18 | GEODE CAPITAL MANAGEMENT, LLC | 1,089,1131.1M | $78M | 1.27% | TRIM -3% |
| 19 | Select Equity Group, L.P. | 1,080,1551.1M | $77M | 1.26% | ADD 183% |
| 20 | CIBC Asset Management Inc | 1,060,1281.1M | $77M | 1.23% | TRIM -9% |
| 21 | FMR LLC | 1,040,8121.0M | $74M | 1.21% | ADD 9% |
| 22 | TD Asset Management Inc | 1,014,5721.0M | $72M | 1.18% | ADD 48% |
| 23 | D. E. Shaw & Co., Inc. | 988,679988,679 | $71M | 1.15% | ADD 24% |
| 24 | Fiera Capital Corp | 837,190837,190 | $60M | 0.97% | TRIM -39% |
| 25 | WESTFIELD CAPITAL MANAGEMENT CO LP | 801,902801,902 | $57M | 0.93% | TRIM -33% |
| 26 | RENAISSANCE TECHNOLOGIES LLC | 798,844798,844 | $57M | 0.93% | ADD 19% |
| 27 | GOLDMAN SACHS GROUP INC | 768,973768,973 | $55M | 0.89% | ADD 34% |
| 28 | VANGUARD FIDUCIARY TRUST CO | 749,245749,245 | $54M | 0.87% | NEW |
| 29 | BANK OF AMERICA CORP /DE/ | 733,483733,483 | $52M | 0.85% | ADD 62% |
| 30 | ROYAL BANK OF CANADA | 657,205657,205 | $47M | 0.76% | TRIM -5% |
| 31 | BlackRock, Inc. | 650,842650,842 | $47M | 0.76% | ADD 76% |
| 32 | FRANKLIN RESOURCES INC | 603,781603,781 | $43M | 0.70% | TRIM -20% |
| 33 | PICTON MAHONEY ASSET MANAGEMENT | 553,578553,578 | $40M | 0.64% | ADD 11% |
| 34 | AQR CAPITAL MANAGEMENT LLC | 511,741511,741 | $37M | 0.59% | ADD 169% |
| 35 | SEGALL BRYANT & HAMILL, LLC | 490,898490,898 | $35M | 0.57% | ADD 10% |
| 36 | Clearbridge Investments, LLC | 474,300474,300 | $34M | 0.55% | ADD 17% |
| 37 | AMERICAN CENTURY COMPANIES INC | 468,511468,511 | $34M | 0.54% | ADD 2844% |
| 38 | PRINCIPAL FINANCIAL GROUP INC | 465,403465,403 | $33M | 0.54% | ADD 67% |
| 39 | RIVERBRIDGE PARTNERS LLC | 451,422451,422 | $32M | 0.52% | TRIM -16% |
| 40 | BANK OF NOVA SCOTIA | 413,949413,949 | $30M | 0.48% | TRIM -2% |
| 41 | FIL Ltd | 404,072404,072 | $29M | 0.47% | ADD 630% |
| 42 | Sone Capital Management, LLC | 391,828391,828 | $28M | 0.46% | ADD 98% |
| 43 | Legal & General Group Plc | 391,593391,593 | $28M | 0.46% | TRIM -5% |
| 44 | BNP PARIBAS FINANCIAL MARKETS | 371,285371,285 | $27M | 0.43% | ADD 57% |
| 45 | TORONTO DOMINION BANK | 368,298368,298 | $26M | 0.43% | TRIM -7% |
| 46 | UBS Group AG | 347,869347,869 | $25M | 0.40% | ADD 54% |
| 47 | Vanguard Global Advisers, LLC | 342,502342,502 | $25M | 0.40% | NEW |
| 48 | Dixon Mitchell Investment Counsel Inc. | 340,370340,370 | $24M | 0.40% | ADD 3% |
| 49 | DIMENSIONAL FUND ADVISORS LP | 333,297333,297 | $24M | 0.39% | — |
| 50 | SEB Asset Management AB | 319,404319,404 | $23M | 0.37% | NEW |
| 51 | Premier Fund Managers Ltd | 317,515317,515 | $23M | 0.37% | TRIM -7% |
| 52 | Praesidium Investment Management Company, LLC | 307,479307,479 | $22M | 0.36% | ADD 85% |
| 53 | MARSHALL WACE, LLP | 305,904305,904 | $22M | 0.36% | ADD 456% |
| 54 | MILLENNIUM MANAGEMENT LLC | 291,979291,979 | $21M | 0.34% | TRIM -7% |
| 55 | Swiss National Bank | 289,424289,424 | $21M | 0.34% | ADD 27% |
| 56 | Zeno Equity Partners LLP | 286,443286,443 | $20M | 0.33% | NEW |
| 57 | CANADA PENSION PLAN INVESTMENT BOARD | 281,731281,731 | $20M | 0.33% | ADD 100% |
| 58 | CITADEL ADVISORS LLC | 277,244277,244 | $20M | 0.32% | TRIM -16% |
| 59 | RAYMOND JAMES FINANCIAL INC | 278,162278,162 | $20M | 0.32% | ADD 157% |
| 60 | LORD, ABBETT & CO. LLC | 254,276254,276 | $18M | 0.30% | TRIM -2% |
| 61 | GW&K Investment Management, LLC | 250,549250,549 | $18M | 0.29% | TRIM -42% |
| 62 | MONTRUSCO BOLTON INVESTMENTS INC. | 246,235246,235 | $18M | 0.29% | ADD 28% |
| 63 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 166,440166,440 | $16M | 0.19% | ADD 6% |
| 64 | Chevy Chase Trust Holdings, LLC | 228,583228,583 | $16M | 0.27% | — |
| 65 | Stephens Investment Management Group LLC | 218,570218,570 | $16M | 0.25% | ADD 5% |
| 66 | Baird Financial Group, Inc. | 199,827199,827 | $14M | 0.23% | TRIM -14% |
| 67 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 197,969197,969 | $14M | 0.23% | ADD 4% |
| 68 | GUARDIAN CAPITAL LP | 190,877190,877 | $14M | 0.22% | ADD 27% |
| 69 | BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 183,687183,687 | $13M | 0.21% | ADD 2961% |
| 70 | WELLINGTON MANAGEMENT GROUP LLP | 184,081184,081 | $13M | 0.21% | ADD 1390% |
| 71 | DF DENT & CO INC | 183,478183,478 | $13M | 0.21% | TRIM -48% |
| 72 | JANE STREET GROUP, LLC | 180,892180,892 | $13M | 0.21% | TRIM -24% |
| 73 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 179,394179,394 | $13M | 0.21% | TRIM -18% |
| 74 | Caisse de depot et placement du Quebec | 169,089169,089 | $12M | 0.20% | TRIM -38% |
| 75 | NATIONAL BANK OF CANADA /FI/ | 169,492169,492 | $12M | 0.20% | TRIM -51% |
| 76 | VANGUARD ASSET MANAGEMENT, Ltd | 162,052162,052 | $12M | 0.19% | NEW |
| 77 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 159,801159,801 | $11M | 0.19% | TRIM -4% |
| 78 | JPMORGAN CHASE & CO | 160,513160,513 | $11M | 0.19% | ADD 41% |
| 79 | Scheer, Rowlett & Associates Investment Management Ltd. | 158,694158,694 | $11M | 0.18% | NEW |
| 80 | Fenimore Asset Management Inc | 156,618156,618 | $11M | 0.18% | ADD 20% |
| 81 | AGF MANAGEMENT LTD | 156,376156,376 | $11M | 0.18% | ADD 25% |
| 82 | Alberta Investment Management Corp | 156,306156,306 | $11M | 0.18% | NEW |
| 83 | Summit Creek Advisors LLC | 154,587154,587 | $11M | 0.18% | TRIM -14% |
| 84 | DEUTSCHE BANK AG\ | 153,725153,725 | $11M | 0.18% | TRIM -39% |
| 85 | SEI INVESTMENTS CO | 151,893151,893 | $11M | 0.18% | ADD 16% |
| 86 | Public Sector Pension Investment Board | 145,592145,592 | $10M | 0.17% | ADD 24% |
| 87 | AMERIPRISE FINANCIAL INC | 141,045141,045 | $10M | 0.16% | TRIM -50% |
| 88 | HERALD INVESTMENT MANAGEMENT Ltd | 145,000145,000 | $10M | 0.17% | TRIM -22% |
| 89 | PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO | 142,527142,527 | $10M | 0.17% | TRIM -45% |
| 90 | ENVESTNET ASSET MANAGEMENT INC | 131,817131,817 | $9M | 0.15% | ADD 19% |
| 91 | Amundi | 130,186130,186 | $9M | 0.15% | ADD 11% |
| 92 | ACADIAN ASSET MANAGEMENT LLC | 129,821129,821 | $9M | 0.15% | ADD 25864% |
| 93 | Walleye Capital LLC | 128,723128,723 | $9M | 0.15% | ADD 1012% |
| 94 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 128,192128,192 | $9M | 0.15% | TRIM -37% |
| 95 | Point72 Asset Management, L.P. | 128,154128,154 | $9M | 0.15% | TRIM -56% |
| 96 | PEREGRINE CAPITAL MANAGEMENT LLC | 121,176121,176 | $9M | 0.14% | NEW |
| 97 | CIDEL ASSET MANAGEMENT INC | 121,304121,304 | $9M | 0.14% | ADD 124% |
| 98 | Balyasny Asset Management L.P. | 114,514114,514 | $8M | 0.13% | ADD 29% |
| 99 | Russell Investments Group, Ltd. | 111,276111,276 | $8M | 0.13% | TRIM -5% |
| 100 | CITIGROUP INC | 109,838109,838 | $8M | 0.13% | TRIM -24% |
† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.
Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ | 6.2M | 7.1M | 8.6M | 7.8M | 7.0M | 6.3M | $448M |
| 1832 Asset Management L.P. | 222K | 249K | 188K | 179K | 2.6M | 3.8M | $274M |
| JANUS HENDERSON GROUP PLC | 636K | 635K | 635K | 2.3M | 2.5M | 2.6M | $184M |
| MACKENZIE FINANCIAL CORP | 14.8M | 3.9M | 3.9M | 3.3M | 3.4M | 2.4M | $175M |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 2.4M | $170M |
| T. Rowe Price Investment Management, Inc. | 1.8M | 1.9M | 2.1M | 2.0M | 567K | 2.2M | $156M |
| Conestoga Capital Advisors, LLC | 3.2M | 2.8M | 2.7M | 2.6M | 2.5M | 2.1M | $151M |
| BANK OF MONTREAL /CAN/ | 1.5M | 1.6M | 1.7M | 1.7M | 1.6M | 1.5M | $109M |
| MORGAN STANLEY | 270K | 248K | 451K | 804K | 1.6M | 1.5M | $107M |
| Temasek Holdings (Private) Ltd | — | — | 897K | 1.5M | 1.5M | 1.5M | $105M |
| GENEVA CAPITAL MANAGEMENT LLC | 1.5M | 1.5M | 1.6M | 1.6M | 1.4M | 1.3M | $95M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.2M | 1.3M | 1.2M | 1.0M | 1.7M | 1.3M | $90M |
| Connor, Clark & Lunn Investment Management Ltd. | 1.9M | 1.7M | 1.5M | 846K | 506K | 1.2M | $87M |
| Waratah Capital Advisors Ltd. | — | — | — | — | 111K | 1.2M | $85M |
| PRIMECAP MANAGEMENT CO/CA/ | 1.9M | 1.8M | 1.5M | 1.2M | 1.2M | 1.2M | $84M |
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding divides each quarter's as-filed 13F shares by the SEC cover-page share count dated to that same quarter (split-adjusted), not by today's count — so splits and buybacks don't move the line.
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
Source: SEC Schedule 13D/13G structured XML. 13D = active intent; 13G filers report passively (Rule 13d-1(b) QII / 13d-1(c) Passive / 13d-1(d) Exempt) and are not activists. Percent and delta are the group aggregate the filing reports. Structured 13D/G coverage begins December 2024 (SEC XML mandate).
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | +2,372,180 | $170M | OPEN |
| T. Rowe Price Investment Management, Inc. | +1,616,333 | $116M | ADD |
| 1832 Asset Management L.P. | +1,239,493 | $89M | ADD |
| Waratah Capital Advisors Ltd. | +1,078,223 | $77M | ADD |
| VANGUARD FIDUCIARY TRUST CO | +749,245 | $54M | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD GROUP INC | −3,602,652 | $258M | CLOSE |
| Durable Capital Partners LP | −1,710,202 | $122M | CLOSE |
| NORGES BANK | −1,144,488 | $82M | CLOSE |
| MACKENZIE FINANCIAL CORP | −924,415 | $66M | TRIM |
| PRICE T ROWE ASSOCIATES INC /MD/ | −728,252 | $52M | TRIM |
The 2025-Q4 register is as-filed in ITS OWN share basis; every count below was rebased into the 2026-Q1 basis (no split in between, factor 1). Dollar figures value the SHARE delta at one price — the 2026-03-31 close — rather than differencing two filings' own reported values, which would mix the quarter's price move into the trade figure.
13Fs disclose LONG US-listed positions only — shorts, most derivatives, bonds and non-US listings are invisible here, and a filer's quarter-over-quarter change is not necessarily a trade (index rebalances, in-kind transfers and entity successions all read as flow).
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 347 | 68,745,066 | 79.9% | $4.9B |
| 2025-Q4 | 350 | 65,475,011 | 76.1% | $5.7B |
| 2025-Q3 | 372 | 65,181,190 | — | $6.1B |
| 2025-Q2 | 356 | 68,500,172 | — | $7.0B |
| 2025-Q1 | 356 | 66,713,312 | 78.3% | $6.8B |
| 2024-Q4 | 371 | 78,151,036 | 91.7% | $8.7B |
| 2024-Q3 | 342 | 66,875,626 | — | $6.9B |
| 2024-Q2 | 323 | 67,157,202 | — | $6.5B |
| 2024-Q1 | 302 | 67,605,949 | 79.4% | $6.2B |
| 2023-Q4 | 288 | 67,135,625 | 78.8% | $5.7B |
| 2023-Q3 | 255 | 67,102,154 | — | $5.0B |
| 2023-Q2 | 259 | 67,123,351 | — | $5.4B |
| 2023-Q1 | 256 | 66,626,630 | 78.6% | $5.4B |
| 2022-Q4 | 228 | 67,653,529 | 79.8% | $4.7B |
| 2022-Q3 | 225 | 70,178,263 | — | $4.5B |
| 2022-Q2 | 215 | 68,919,400 | — | $4.3B |
| 2022-Q1 | 233 | 66,637,969 | 78.6% | $4.9B |
| 2021-Q4 | 222 | 63,577,021 | 75.0% | $5.3B |
| 2021-Q3 | 204 | 67,741,978 | — | $5.5B |
| 2021-Q2 | 197 | 67,695,860 | — | $4.7B |
| 2021-Q1 | 190 | 67,798,621 | 80.2% | $4.2B |
| 2020-Q4 | 190 | 68,581,020 | 81.2% | $4.1B |
| 2020-Q3 | 182 | 68,972,249 | — | $4.0B |
| 2020-Q2 | 169 | 68,976,863 | — | $3.7B |
| 2020-Q1 | 152 | 67,983,901 | 80.8% | $2.3B |
| 2019-Q4 | 158 | 67,164,648 | 79.8% | $2.9B |
| 2019-Q3 | 154 | 68,281,069 | — | $2.8B |
| 2019-Q2 | 150 | 71,815,585 | — | $2.6B |
| 2019-Q1 | 133 | 63,058,483 | 82.0% | $2.3B |
| 2018-Q4 | 128 | 62,522,694 | 81.3% | $1.7B |
| 2018-Q3 | 126 | 62,645,872 | — | $2.1B |
| 2018-Q2 | 118 | 63,857,597 | — | $2.1B |
| 2018-Q1 | 113 | 62,124,311 | 80.9% | $1.8B |
| 2017-Q4 | 109 | 60,165,960 | 78.4% | $1.7B |
| 2017-Q3 | 107 | 59,927,593 | — | $1.6B |
| 2017-Q2 | 102 | 60,813,605 | — | $1.5B |
| 2017-Q1 | 105 | 60,843,269 | 80.2% | $1.4B |
| 2016-Q4 | 98 | 59,135,126 | 77.9% | $1.3B |
| 2016-Q3 | 93 | 60,410,875 | — | $1.3B |
| 2016-Q2 | 94 | 59,420,231 | — | $1.1B |
| 2016-Q1 | 92 | 62,463,515 | 82.8% | $1.2B |
| 2015-Q4 | 96 | 64,354,191 | 85.3% | $1.3B |
| 2015-Q3 | 86 | 66,872,411 | — | $1.2B |
| 2015-Q2 | 79 | 63,240,097 | — | $1.0B |
| 2015-Q1 | 75 | 64,638,254 | 85.6% | $994M |
| 2014-Q4 | 67 | 65,433,277 | 86.7% | $984M |
| 2014-Q3 | 58 | 58,087,907 | — | $802M |
| 2014-Q2 | 60 | 60,194,843 | — | $866M |
| 2014-Q1 | 50 | 45,237,218 | 71.1% | $638M |
| 2013-Q4 | 48 | 46,185,984 | 72.5% | $619M |
| 2013-Q3 | 37 | 45,790,920 | — | $525M |
| 2013-Q2 | 32 | 38,157,529 | — | $439M |
| 2013-Q1 | 3 | 2,024,602 | 3.2% | $19M |
