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DLRDigital Realty · Insider ownership research

Digital Realty insiders sold $695K in the past 12 months. How much of their stake is that?

About 0.8% overall. As a group they ended with more shares than they started with. The biggest individual seller, Mary Preusse, gave up 27% of starting holdings.

Updated Oct 8, 2026 from SEC filings · covers Oct 9, 2025 to Oct 8, 2026
How this comparesMore of their stake sold than at 71 of the 311 other companies we can measure (#241 of 312)See ranking
0
buyers among officers and directors, past 12 months
0%
of sales were under disclosed trading plans, past 12 months
2 of 13
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 9, 2026 to Oct 8, 2026
Oct 1, 2026Christine Kornegay had 54 shares ($10K) withheld by the company for taxes (not a market sale). That is 1.3% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Christine Kornegay
Chief Accounting Officer
54$176.491.3%4.2KOct 1, 2026Oct 2, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Is this normal? Less than usual: less than one-twentieth of the 5-year average. 2 insiders sold; the average is 5 a year. Year by year
Latest filing: Filed Oct 2 for a tax withholding on Oct 1. Christine Kornegay had 54 shares withheld by the company for taxes. Filing
40 SEC ownership filings in the period · See the evidence

What stands out

Mark Patterson sold 200 shares (1.0% of starting holdings), but 1.3K more vested, so the stake grew (from 21K to 22K).Largest sale, Aug 27, 2026

Percentages cover 11 of 13 officers and directors. Left out: Jean Mandeville (holdings couldn't be fully reconciled); Stephen Bolze (held no vested shares at the start). Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Each bar is the insider's vested stake at the start of the period (Oct 8, 2025). The gold part is what they sold.

SoldRest of starting stakeAdded during the period
Mary Preusse
Director
27% · $656KNo plan disclosed
Mark Patterson
Director
1.0% · $39KNo plan disclosed
Amounts, filings and trading plans for each seller

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planTo cover taxesNo plan disclosed
OctNovDec 2025: $656K no plan disclosed$656KDecJanFebMarAprMayJunJulAug 2026: $39K no plan disclosedAugSepOct

Common questions

Is the Digital Realty CEO selling stock?

No. Andrew Power reported no open-market sales in the past 12 months.

Why are Digital Realty insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 0% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 100% had no disclosed plan. A trading plan schedules sales in advance.

Are any Digital Realty insiders buying?

No. Officers and directors reported no purchases in the past 12 months.

How much of their stake did Digital Realty insiders sell?

About 0.8% overall. As a group they ended with more shares than they started with. The biggest individual seller, Mary Preusse, gave up 27% of starting holdings. That covers the 12 months to Oct 8, 2026 and counts vested shares reported on SEC Forms 3, 4 and 5, which is not an insider's whole wealth.

The evidence

Who sold2 officers and directors: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
Mary Preusse
Director
$656K
4.2K shares
27%No plan disclosed
Mark Patterson
Director
$39K
200 shares
1.0%No plan disclosed
The full ownership picture12 of 13 insiders fully reconciled · 13 officers and directors

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

InsiderHeld Oct 8, 2025SoldHeld Oct 8, 2026Still held
Andrew Power
President and CEO, Director
344K0516Kno sales
Vesting, gifts, unvested awards and holding lines for Andrew Power
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectLong-Term Incentive Units343,551515,840
Jeannie Lee
i
Includes unvested RSUs, amount not disclosed.
EVP, General Counsel
55K079Kno sales
Vesting, gifts, unvested awards and holding lines for Jeannie Lee
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 8, 2025Oct 8, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock10,61110,611
DirectLong-Term Incentive Units44,48668,579
Matt Mercier
CFO
51K085Kno sales
Vesting, gifts, unvested awards and holding lines for Matt Mercier
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectLong-Term Incentive Units51,04884,590
Mark Patterson
Director
21K−20022K+5.2%
Vesting, gifts, unvested awards and holding lines for Mark Patterson
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock6,5226,322
DirectLong-Term Incentive Units14,22015,509
Mary Preusse
Director
16K−4.2K13K85%
Vesting, gifts, unvested awards and holding lines for Mary Preusse
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock00
DirectLong-Term Incentive Units15,54013,189
Afshin Mohebbi
Director
14K015Kno sales
Vesting, gifts, unvested awards and holding lines for Afshin Mohebbi
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectLong-Term Incentive Units13,72415,013
William Laperch
i
Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Director
13K015Kno sales
Vesting, gifts, unvested awards and holding lines for William Laperch
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectLong-Term Incentive Units13,27014,769

Additional holdings last reported Dec 2, 2021, not confirmed since: 12,008 shares. Not included in any total or percentage on this page.

VeraLinn Jamieson
Director
13K015Kno sales
Vesting, gifts, unvested awards and holding lines for VeraLinn Jamieson
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectLong-Term Incentive Units12,94114,852
Kevin Kennedy
Director
13K014Kno sales
Vesting, gifts, unvested awards and holding lines for Kevin Kennedy
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectLong-Term Incentive Units12,64213,931
Jean Mandeville
!
Holdings couldn't be fully reconciled. Balance changed with no matching transaction and no footnote: -321 shares on May 28, 2026 (Direct). See the filing Sales and other transactions for Jean Mandeville are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Jean Mandeville
0shares vested or exercised
0gifted (net of own trusts)
−284withheld by the company for taxes
none reportedunvested awards, start → end

Holdings couldn't be fully reconciled. Balance changed with no matching transaction and no footnote: -321 shares on May 28, 2026 (Direct). The balances below are as reported, not verified totals.

Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock10,35511,039
Susan Swanezy
Director
3.3K05.2Kno sales
Vesting, gifts, unvested awards and holding lines for Susan Swanezy
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectLong-Term Incentive Units3,3365,166
Christine Kornegay
Chief Accounting Officer
2.8K04.2Kno sales
Vesting, gifts, unvested awards and holding lines for Christine Kornegay
0shares vested or exercised
0gifted (net of own trusts)
−288withheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock2,7754,244
Stephen Bolze
Director
002Kno sales
Vesting, gifts, unvested awards and holding lines for Stephen Bolze
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectLong-Term Incentive Units02,032

12 of 13 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (12 exactly, 0 with a minor or footnoted difference). For 1 we show sales but not holdings; the ! icon on that row explains why. Percentages cover 11 of 13 officers and directors. Left out: Jean Mandeville (holdings couldn't be fully reconciled); Stephen Bolze (held no vested shares at the start). "Still held" compares ending with starting vested shares; a plus sign means the holding grew.

What explains the selling$695K of sales by plan status, purpose, seller and month

Officer and director open-market sales: $695K across 4,366 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

No plan disclosed · $695K

Sales with no 10b5-1 plan and no tax reference in the filing. $656K of it is Mary Preusse. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Mary Preusse, Dec 1, 2025

Taxes

572 shares ($105K) were withheld by the company for taxes, which isn't a market sale.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
Mary Preusse
Director
4.2K$656K0%94%Dec 1, 2025 to Dec 1, 2025
Mark Patterson
Director
200$39K0%6%Aug 27, 2026 to Aug 27, 2026

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$0$0$0$0
Nov 2025$0$0$0$0
Dec 2025$656K$0$0$656K
Jan 2026$0$0$0$0
Feb 2026$0$0$0$0
Mar 2026$0$0$0$0
Apr 2026$0$0$0$0
May 2026$0$0$0$0
Jun 2026$0$0$0$0
Jul 2026$0$0$0$0
Aug 2026$39K$0$0$39K
Sep 2026$0$0$0$0
Oct 2026$0$0$0$0
Is this normal? Selling year by year5 earlier years to compare with

Less than usual: less than one-twentieth of the 5-year average. 2 insiders sold; the average is 5 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 8, 2026
Latest 12 months
4.4K2$695K
Oct 8, 2025
1 year earlier
61K3$10.7M
Oct 8, 2024
2 years earlier
4K1$585K
Oct 9, 2023
3 years earlier
16K6$1.8M
Oct 9, 2022
4 years earlier
136K4$20.4M
Oct 9, 2021
5 years earlier
1.02M9$159M

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertainty1 insider whose holdings couldn't be fully reconciled

Jean Mandeville: holdings couldn't be fully reconciled (difference of -321 shares). Balance changed with no matching transaction and no footnote: -321 shares on May 28, 2026 (Direct). Filing, May 28, 2026

Inferred rename: "Global Innovation Manager, LLC" is treated as the same holder as "Global Innovation Manager, LLC and Global Innovation Contributor, LLC", because the old name was never reported again and the new one opened with the same balance (184 shares). Old name, new name

Inferred typo: the share class "Long Term Incentive Units" is treated as the same class as "Long-Term Incentive Units" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Christopher Crosby Jr., 16,163 shares): old title, new title

Inferred typo: the share class "Class C Profits Interest Units" is treated as the same class as "Class C Profits Interst Units" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (James Trout, 17,317 shares): old title, new title

Inferred typo: the share class "CommonStock" is treated as the same class as "Common Stock" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (James Trout, 17,317 shares): old title, new title

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology1,168 filings from SEC EDGAR, and how we read them

All 1,168 Forms 3, 4 and 5 filed for Digital Realty (SEC CIK 1297996) from Oct 28, 2004 to Oct 2, 2026, retrieved from SEC EDGAR on Oct 8, 2026. Prices are the ones reported in each filing, often weighted averages.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (39)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
Peter OlsonNov 28, 20238,293 shares, last reported balance as of Nov 27, 2023
Alexis BjorlinOct 3, 20239,101 shares, last reported balance as of Sep 30, 2023
Cindy FiedelmanAug 1, 202356,676 shares, last reported balance as of Jul 28, 2023
Christopher SharpApr 25, 202399,041 shares, last reported balance as of Apr 21, 2023
Gregory WrightApr 25, 202391,666 shares, last reported balance as of Apr 21, 2023
Dyer CoreyApr 25, 202338,748 shares, last reported balance as of Apr 21, 2023
Dennis SingletonApr 4, 202346,725 shares, last reported balance as of Mar 31, 2023
Laurence ChapmanApr 4, 202371,988 shares, last reported balance as of Mar 31, 2023
Camilla HarrisJan 4, 20235,577 shares, last reported balance as of Jan 1, 2023
William SteinSep 19, 2022304,746 shares, last reported balance as of Sep 15, 2022
Erich SanchackSep 2, 202270,251 shares, last reported balance as of Aug 31, 2022
David RubergMay 31, 2022190,331 shares, last reported balance as of May 27, 2022
Joshua MillsSep 2, 202169,595 shares, last reported balance as of Sep 1, 2021
Michael CokeMay 13, 202114,238 shares, last reported balance as of May 11, 2021
Edward ShamJan 15, 202065,434 shares, last reported balance as of Jan 13, 2020
John Roberts Jr.May 15, 201914,968 shares, last reported balance as of May 13, 2019
Scott PetersonMar 23, 2018207,710 shares, last reported balance as of Mar 9, 2018
Daniel PapesMar 6, 20186,673 shares, last reported balance as of Mar 2, 2018
Christopher KenneyMar 5, 201892,619 shares, last reported balance as of Mar 1, 2018
Kathleen EarleyMay 10, 201727,128 shares, last reported balance as of May 8, 2017
Robert ZerbstMay 10, 201713,001 shares, last reported balance as of May 8, 2017
Jarrett ApplebyMar 2, 201714,003 shares, last reported balance as of Feb 28, 2017
Michael HenryMar 2, 2017No balance on record
Bernard GeogheganMay 6, 20167,185 shares, last reported balance as of May 4, 2016
James SmithMar 10, 201516,225 shares, last reported balance as of Mar 9, 2015
David CaronDec 5, 2014117,534 shares, last reported balance as of Dec 3, 2014
Ruann ErnstJul 24, 201412,937 shares, last reported balance as of Jul 22, 2014
Michael FoustFeb 14, 2014671,347 shares, last reported balance as of Feb 11, 2014
Ellen JacobsFeb 13, 201461,383 shares, last reported balance as of Feb 11, 2014
Kris KumarFeb 13, 201428,844 shares, last reported balance as of Feb 11, 2014
Matthew MiszewskiFeb 13, 201418,351 shares, last reported balance as of Feb 11, 2014
Frederick PotterNov 8, 20126,205 shares, last reported balance as of Nov 6, 2012
Brent BehrmanApr 4, 201213,414 shares, last reported balance as of Apr 2, 2012
Richard MagnusonAug 15, 201113,312,132 shares, last reported balance as of Aug 8, 2011
Christopher Crosby Jr.Mar 9, 201163,888 shares, last reported balance as of Mar 7, 2011
James TroutMar 4, 200921,925 shares, last reported balance as of Mar 2, 2009
Global Innovation Partners, LLCMar 8, 2007348,129 shares, last reported balance as of Mar 8, 2007
John WilsonNov 4, 2004593,585 shares, last reported balance as of Nov 3, 2004
Kathleen ReedNov 1, 20046,448 shares, last reported balance as of Oct 28, 2004