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EXRExtra Space Storage · Insider ownership research

Extra Space Storage insiders sold $1.6M in the past 12 months. How much of their stake is that?

About 2.0% overall. As a group they ended with more shares than they started with. These figures leave out Spencer Kirk, the largest holder (most holdings were last confirmed in 2010).

Updated Oct 8, 2026 from SEC filings · covers Oct 9, 2025 to Oct 8, 2026
How this comparesMore of their stake sold than at 108 of the 311 other companies we can measure (#204 of 312)See ranking
0
buyers among officers and directors, past 12 months
68%
of sales were under disclosed trading plans, past 12 months
2 of 19
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 9, 2026 to Oct 8, 2026

No officer or director trades were reported for the past 30 days. The most recent before that:

Aug 4, 2026Joseph Margolis gave away 14K shares as a gift. That is 5.9% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Joseph Margolis
Chief Executive Officer, Director
13,503n/a5.9%214KAug 4, 2026Aug 5, 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: about one-twentieth of the 5-year average. 2 insiders sold; the average is 6 a year. Year by year
Latest filing: Filed Aug 5 for a gift on Aug 4. Joseph Margolis gave away 14K shares. Filing
31 SEC ownership filings in the period · See the evidence

What stands out

Two officers sold shares but ended with larger stakes, because more shares came in than were sold: Joseph Margolis (sold 7.5K, 3.6% of starting holdings; 24K added) and Gwyn McNeal (sold 3.3K, 8.9% of starting holdings; 4.8K added).Joseph Margolis: largest sale, Mar 13, 2026 · Gwyn McNeal: largest sale, Jun 11, 2026
Tax withholding outweighed market sales: the company withheld $2.4M of officers' and directors' shares for taxes, against $1.6M sold on the open market. The largest was Joseph Margolis ($891K withheld).Largest withholding, Mar 1, 2026

Percentages cover 15 of 19 officers and directors. 4 are left out

i
Left out: Spencer Kirk (most holdings were last confirmed in 2010); Kenneth Woolley (most holdings were last confirmed in 2014); Raymond Pittman and Crystal Maggelet (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
Joseph Margolis
Chief Executive Officer, Director
Sold 3.6%, but 28K shares were added (mostly vesting), so the stake grew
3.6% · $1.1MDisclosed plan
Gwyn McNeal
EVP/Chief Legal Officer
8.9% · $495KNo 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
OctNovDecJanFebMar 2026: $1.1M under a disclosed plan$1.1MMarAprMayJun 2026: $495K no plan disclosedJunJulAugSepOct

Common questions

Is the Extra Space Storage CEO selling stock?

Yes. Joseph Margolis sold 7.5K shares ($1.1M, 3.6% of starting holdings) in the past 12 months, all of it under a trading plan disclosed in the filings.

Why are Extra Space Storage insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 68% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 32% had no disclosed plan. A trading plan schedules sales in advance.

Are any Extra Space Storage insiders buying?

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

How much of their stake did Extra Space Storage insiders sell?

About 2.0% overall. As a group they ended with more shares than they started with. These figures leave out Spencer Kirk, the largest holder (most holdings were last confirmed in 2010). 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
Joseph Margolis
Chief Executive Officer, Director
$1.1M
7.5K shares
3.6%Disclosed plan
Gwyn McNeal
EVP/Chief Legal Officer
$495K
3.3K shares
8.9%No plan disclosed
The full ownership picture19 of 19 insiders fully reconciled · 19 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
Spencer Kirk
!
Most of this insider's holdings were last confirmed in 2010. Confirmed in the last three years: 874,197 shares. Not confirmed since: 5,506,044 shares, left out of this row. "Still held" is not shown because it would cover only the smaller, confirmed part.
Director
944K0874Ksee note
Vesting, gifts, unvested awards and holding lines for Spencer Kirk
0shares vested or exercised
−70Kgifted (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
DirectCommon Stock127,891127,891
Krispen Family Holdings L.CCommon Stock637,591567,591
Kirk 101 TrustCommon Stock161,215161,215
Spenco Irrevocable TrustCommon Stock17,50017,500

Additional holdings last reported Mar 5, 2010, not confirmed since: 5,506,044 shares. Not included in any total or percentage on this page.

Kenneth Woolley
!
Most of this insider's holdings were last confirmed in 2014. Confirmed in the last three years: 407,088 shares. Not confirmed since: 2,397,080 shares, left out of this row. "Still held" is not shown because it would cover only the smaller, confirmed part.
Director
406K0407Ksee note
Vesting, gifts, unvested awards and holding lines for Kenneth Woolley
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
DirectCommon Stock405,681407,088

Additional holdings last reported Dec 3, 2014, not confirmed since: 2,397,080 shares. Not included in any total or percentage on this page.

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
5,065$65.36Feb 24, 2025$429K

Estimate: options held × ($150.00 − strike price), using the most recent insider trade price on Form 4 (Jun 11, 2026), not a market close.

Joseph Margolis
Chief Executive Officer, Director
211K−7.5K214K+1.5%
Vesting, gifts, unvested awards and holding lines for Joseph Margolis
0shares vested or exercised
−7.7Kgifted (net of own trusts)
−5.9Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock84,38540,840
Cove Hollow Lane I, LLCCommon Stock97,26083,757
J Margolis & K Margolis TTEECommon Stock19,76079,998
Cove Hollow Lane II, LLCCommon Stock9,1909,190
Samrat Sondhi
Executive VP and CDO
102K0109Kno sales
Vesting, gifts, unvested awards and holding lines for Samrat Sondhi
0shares vested or exercised
0gifted (net of own trusts)
−1.8Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock101,950109,244
Joseph Saffire
Director
45K047Kno sales
Vesting, gifts, unvested awards and holding lines for Joseph Saffire
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock45,12046,527
Gwyn McNeal
EVP/Chief Legal Officer
37K−3.3K37K+0.9%
Vesting, gifts, unvested awards and holding lines for Gwyn McNeal
0shares vested or exercised
0gifted (net of own trusts)
−1.2Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock37,05637,374
Zachary Dickens
EVP, Chief Investment Officer
27K034Kno sales
Vesting, gifts, unvested awards and holding lines for Zachary Dickens
0shares vested or exercised
0gifted (net of own trusts)
−1.9Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock26,66733,712
Mark Barberio
i
Minor difference of -1 share. Difference is under 0.5% of holdings.
Director
24K025Kno sales
Vesting, gifts, unvested awards and holding lines for Mark Barberio
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock14,08115,487
Markapital, LLCCommon Stock8,0558,055
Barberio Family Foundation TrustCommon Stock1,8041,804

Reconciliation: minor difference of -1 share. Difference is under 0.5% of holdings.

William Springer
President
20K028Kno sales
Vesting, gifts, unvested awards and holding lines for William Springer
0shares vested or exercised
0gifted (net of own trusts)
−1.7Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock19,72527,794
Matthew Herrington
EVP & COO
17K024Kno sales
Vesting, gifts, unvested awards and holding lines for Matthew Herrington
0shares vested or exercised
0gifted (net of own trusts)
−1.5Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock17,45323,720
Grace Kunde
i
Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
CAO
14K015Kno sales
Vesting, gifts, unvested awards and holding lines for Grace Kunde
0shares vested or exercised
0gifted (net of own trusts)
−551withheld by the company for taxes
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
DirectCommon Stock13,90514,646

Additional holdings last reported Sep 13, 2017, not confirmed since: 11,559 shares. Not included in any total or percentage on this page.

Jeffrey Norman
Executive VP and CFO
14K016Kno sales
Vesting, gifts, unvested awards and holding lines for Jeffrey Norman
0shares vested or exercised
0gifted (net of own trusts)
−1.2Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock13,59015,818
Diane Olmstead
Director
7.3K07.3Kno sales
Vesting, gifts, unvested awards and holding lines for Diane Olmstead
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock7,2527,252
Gary Crittenden
Director
7.1K08.5Kno sales
Vesting, gifts, unvested awards and holding lines for Gary Crittenden
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock7,1078,514
Ploeg Vander
Director
6.2K07.6Kno sales
Vesting, gifts, unvested awards and holding lines for Ploeg Vander
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock6,1907,597
Joseph Bonner
Director
5.9K07.3Kno sales
Vesting, gifts, unvested awards and holding lines for Joseph Bonner
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock5,9327,339
Sue Harnett
Director
5.6K07Kno sales
Vesting, gifts, unvested awards and holding lines for Sue Harnett
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock5,6097,016
Raymond Pittman
Director
001.4Kno sales
Vesting, gifts, unvested awards and holding lines for Raymond Pittman
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock01,407
Crystal Maggelet
Director
001.4Kno sales
Vesting, gifts, unvested awards and holding lines for Crystal Maggelet
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock01,407

19 of 19 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (18 exactly, 1 with a minor or footnoted difference). Percentages cover 15 of 19 officers and directors. Left out: Spencer Kirk (most holdings were last confirmed in 2010); Kenneth Woolley (most holdings were last confirmed in 2014); Raymond Pittman and Crystal Maggelet (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$1.6M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $1.6M across 10,800 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

The lighter segment is sales with no plan disclosed in the filing ($495K), including tax-related sales outside a plan.

No plan disclosed · $495K

Sales with no 10b5-1 plan and no tax reference in the filing. $495K of it is Gwyn McNeal. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Gwyn McNeal, Jun 11, 2026

Taxes

15,733 shares ($2.4M) were withheld by the company for taxes, which isn't a market sale.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
Joseph Margolis
Chief Executive Officer, Director
7.5K$1.1M100%68%Mar 13, 2026 to Mar 13, 2026
Gwyn McNeal
EVP/Chief Legal Officer
3.3K$495K0%32%Jun 11, 2026 to Jun 11, 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$0$0$0$0
Jan 2026$0$0$0$0
Feb 2026$0$0$0$0
Mar 2026$1.1M$1.1M$0$0
Apr 2026$0$0$0$0
May 2026$0$0$0$0
Jun 2026$495K$0$0$495K
Jul 2026$0$0$0$0
Aug 2026$0$0$0$0
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: about one-twentieth of the 5-year average. 2 insiders sold; the average is 6 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 8, 2026
Latest 12 months
11K2$1.6M
Oct 8, 2025
1 year earlier
35K5$5.2M
Oct 8, 2024
2 years earlier
82K8$12.7M
Oct 9, 2023
3 years earlier
14K5$2.3M
Oct 9, 2022
4 years earlier
20K4$4.2M
Oct 9, 2021
5 years earlier
843K8$143M

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 uncertaintyEvery officer and director reconciles

Every officer and director reconciles for this period.

Mark Barberio: minor difference of -1 share. Difference is under 0.5% of holdings.

Inferred rename: "Tanner Storage LLC" is treated as the same holder as "Richard S. Tanner, or his successors, as manager of Tanner Storage LLC", because the old name was never reported again and the new one opened with the same balance (37,285 shares). Old name, new name

Inferred rename: "SFKC Kirk Charitable Remainder Unitrust" is treated as the same holder as "David R Spafford as Ttee of the SFKC Kirk Charitable Remainder Unitrust", because the old name was never reported again and the new one opened with the same balance (444,821 shares). Old name, new name

Inferred rename: "Roger Blaine Porter 2012 Trust of which Roger Porter is a beneficiary" is treated as the same holder as "Roger Blaine Porter 2012 Trust", because the old name was never reported again and the new one opened with the same balance (100,000 shares). Old name, new name

Inferred rename: "Anthony and JoAnn Fanticola Family Limited Partnership" is treated as the same holder as "Anthony Fanticola & JoAnn Fanticola Family Limited Partnership", because the old name was never reported again and the new one opened with the same balance (447,335 shares). Old name, new name

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

Sources and methodology922 filings from SEC EDGAR, and how we read them

All 922 Forms 3, 4 and 5 filed for Extra Space Storage (SEC CIK 1289490) from Aug 11, 2004 to Aug 5, 2026, retrieved from SEC EDGAR on Oct 8, 2026. Prices are the ones reported in each filing, often weighted averages. 2 filings were left out because Extra Space Storage filed them as an owner of another company's stock.

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 (18)No filing in 18 months; last reported balances, not in any total