undamentalytics Newsletter

DaVita insider trading

Every open-market purchase and sale by DaVita's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

No insider has bought shares on the open market in five years.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
DaVita insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following DaVita’s insiders pay?

From March 3, 2010 to October 29, 2026, 35 insiders reported 29 open-market purchases and 263 sales not made under a pre-set plan in DaVita. Twelve months after each purchase was reported, the shares were −11.3% against the S&P 500 on average (median −10.9%), over 29 purchases with a full year of prices; 21% beat the index. After sales, the shares moved −5.2% against the index over 12 months (a negative figure means selling was the right call). Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on October 2, 2012 into $23,312 by November 2, 2026, +6.2% a year. It held shares 39% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $28,515 (+7.7% a year), and held throughout $66,555 (+14.4%).

$0$20.0k$40.0k$60.0k 20122014201620182020202220242026 $66.6k$28.5k$23.3k
Copying DaVita's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by DaVita's insiders from October 2, 2012, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 39% of the time.
DaVita: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Hilger James K Chief Accounting Officer 0 — — 26 −5.5% (26) January 18, 2018
Kogod Dennis Pres, HCP & CEO, DVA Int. 0 — — 22 −6.2% (22) May 19, 2016
Rodriguez Javier Chief Executive Officer 0 — — 22 −5.9% (21) June 17, 2026
Berkshire Hathaway Inc and related entities 10% owner 14 −11.6% (14) 14% 7 +7.8% (4) October 29, 2026
Mildenberger Laura Chief People Officer 0 — — 21 −2.3% (21) December 21, 2015
Zumwalt Leanne M Group VP, Government Affairs 0 — — 18 −3.5% (18) September 22, 2020
Buffett Warren E and related entities 10% owner 12 −14.4% (12) 17% 4 +3.8% (3) February 2, 2026
Thiry Kent J Executive Chairman 0 — — 16 −6.4% (16) May 13, 2020
Nehra John M Director 2 +1.7% (2) 50% 12 −8.8% (12) November 1, 2022
Berg Charles Executive Chair, DMG 0 — — 12 −3.7% (12) March 13, 2023
Nissenson Allen Chief Medical Officer 0 — — 12 −0.2% (12) February 18, 2014
Rivera Kim M Chief Legal Officer 0 — — 11 −5.5% (11) September 24, 2015
Staffieri Michael David Chief Operating Officer, DKC 1 +4.6% (1) 100% 10 −11.9% (10) August 19, 2024
Arway Pamela M Director 0 — — 9 −17.6% (9) November 17, 2020
Roper William L Director 0 — — 7 −5.6% (7) June 10, 2020
Jiganti Jeanine Marie Chief Compliance Officer 0 — — 6 −7.1% (6) June 15, 2017
Desoer Barbara J Director 0 — — 5 −11.2% (5) May 14, 2024
Shapiro David T Chief Special Counsel 0 — — 5 +13.1% (5) May 15, 2013
Waters Kathleen Alyce Chief Legal & Pub. Affairs Off 0 — — 5 −4.8% (5) August 15, 2024
Diaz Paul J Director 0 — — 4 −1.3% (4) May 19, 2020
Hearty James O Chief Compliance Officer 0 — — 4 −2.0% (3) May 18, 2026
Valine Roger Director 0 — — 4 −11.9% (4) May 8, 2017
Ackerman Joel CFO and Treasurer 0 — — 3 −26.9% (2) May 11, 2026
Usilton Thomas O SVP, Chief Development Officer 0 — — 3 +3.0% (3) March 9, 2011
Brittain Willard Woodson Jr Director 0 — — 2 +7.4% (2) December 6, 2010
Davidson Carol Anthony Director 0 — — 2 −18.1% (2) August 19, 2015
Price Paula A Director 0 — — 2 −24.9% (2) February 15, 2022
Yale Phyllis R Director 0 — — 2 −8.5% (2) May 12, 2023
Borgen Luis Chief Financial Officer 0 — — 1 −3.8% (1) March 24, 2011
Grauer Peter T Director 0 — — 1 −4.1% (1) November 12, 2010
Margolis Robert J Co-Chairman of the Board 0 — — 1 −7.0% (1) November 12, 2014
Maughan David Paul Chief Operating Officer, DKC 0 — — 1 — May 13, 2026
Vaughan Richard C Director 0 — — 1 +14.6% (1) March 5, 2010
Weschler, R. Ted Other 0 — — 1 +8.7% (1) September 21, 2020
Whitney Richard K Chief Financial Officer 0 — — 1 +6.4% (1) March 3, 2010

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded DaVita

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of DaVita in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 1 buying crowd with six months of prices, it averaged +12.1% against the index. After 13 selling crowds, −4.2%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
May 29, 20264 selling−9.0%not yetnot yet
August 30, 20244 selling+2.9%−11.3%−26.8%
February 29, 20244 selling+12.7%+10.1%−3.5%
May 31, 20236 selling+2.0%−3.2%+29.0%
May 28, 20214 selling+1.4%−28.9%−18.7%
May 29, 20203 selling−7.6%+15.2%+8.1%
June 29, 20183 selling−4.5%−19.0%−29.7%
December 29, 20175 selling−9.0%−6.6%−23.9%
May 31, 20177 selling−15.8%−21.7%−13.5%
February 29, 20163 selling+7.6%−16.9%−19.6%
February 28, 201414 selling−1.2%−0.1%−6.1%
August 30, 20132 buying−0.4%+12.1%+13.7%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Latest 12 of 15. Total returns from the month end; past patterns are not a forecast.

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