Decision Timeline

AMZN, decision by decision.

Not just who owns it now. This is the sequence of material choices managers reported, when each choice became visible, and the observed result after disclosure.

Material decisions: 77
Buy / add: 41
Trim / exit: 36

The cohort disagreed in Q2 2026.

At least one tracked manager bought or added while another trimmed or exited. The disagreement is the signal; it is not collapsed into a consensus score.

Eight-quarter evidence

8 reported quarters

Q2 2026
filed Sep 2, 2026
64d lag
ADD+34.3%
Joel Greenblatt · 1.5% of reported portfolio
Original SEC filing ↗
-2.6% vs SPY
21 sessions after disclosure
direction not supported so far
Q2 2026
filed Aug 17, 2026
48d lag
TRIM-24.3%
AltaRock Partners · 38.2% of reported portfolio
Original SEC filing ↗
-3.6% vs SPY
33 sessions after disclosure
direction supported so far
Q2 2026
filed Aug 14, 2026
45d lag
ADD+35.6%
David Rolfe · 6.7% of reported portfolio
Original SEC filing ↗
-3.6% vs SPY
34 sessions after disclosure
direction not supported so far
Q2 2026
filed Aug 14, 2026
45d lag
ADD+1082.5%
Stanley Druckenmiller · 3.0% of reported portfolio
Original SEC filing ↗
-3.6% vs SPY
34 sessions after disclosure
direction not supported so far
Q2 2026
filed Aug 14, 2026
45d lag
ADD+209.6%
Viking Global Investors · 2.5% of reported portfolio
Original SEC filing ↗
-3.6% vs SPY
34 sessions after disclosure
direction not supported so far
Q2 2026
filed Aug 13, 2026
44d lag
ADD+20.0%
Seth Klarman · 16.5% of reported portfolio
Original SEC filing ↗
-3.6% vs SPY
35 sessions after disclosure
direction not supported so far
Q2 2026
filed Aug 12, 2026
43d lag
TRIM-34.0%
AKO Capital · 7.1% of reported portfolio
Original SEC filing ↗
-4.3% vs SPY
36 sessions after disclosure
direction supported so far
Q2 2026
filed Aug 11, 2026
42d lag
ADD+24.8%
Christopher Davis · 4.4% of reported portfolio
Original SEC filing ↗
-5.8% vs SPY
37 sessions after disclosure
direction not supported so far
Q2 2026
filed Aug 10, 2026
41d lag
TRIM-37.8%
Vulcan Value Partners · 8.8% of reported portfolio
Original SEC filing ↗
-7.8% vs SPY
38 sessions after disclosure
direction supported so far
Q2 2026
filed Aug 4, 2026
35d lag
TRIM-27.9%
Polen Capital Management · 5.6% of reported portfolio
Original SEC filing ↗
-8.0% vs SPY
42 sessions after disclosure
direction supported so far
Q2 2026
filed Jul 21, 2026
21d lag
ADD+51.2%
John Armitage · 8.2% of reported portfolio
Original SEC filing ↗
-0.5% vs SPY
52 sessions after disclosure
direction not supported so far
Q2 2026
filed Jul 7, 2026
7d lag
EXITEXIT
Robert Olstein · 0.8% of reported portfolio
Original SEC filing ↗
-0.3% vs SPY
62 sessions after disclosure
direction supported so far
Q1 2026
filed May 15, 2026
45d lag
ADD+98.2%
David Tepper · 15.2% of reported portfolio
Original SEC filing ↗
-6.2% vs SPY
63 sessions after disclosure
direction not supported so far
Q1 2026
filed May 15, 2026
45d lag
ADD+71.5%
David Rolfe · 4.3% of reported portfolio
Original SEC filing ↗
-6.2% vs SPY
63 sessions after disclosure
direction not supported so far
Q1 2026
filed May 15, 2026
45d lag
EXITEXIT
Stephen Mandel · 4.1% of reported portfolio
Original SEC filing ↗
-6.2% vs SPY
63 sessions after disclosure
direction supported so far
Q1 2026
filed May 15, 2026
45d lag
TRIM-93.8%
Stanley Druckenmiller · 4.0% of reported portfolio
Original SEC filing ↗
-6.2% vs SPY
63 sessions after disclosure
direction supported so far
Q1 2026
filed May 15, 2026
45d lag
TRIM-42.7%
Joel Greenblatt · 2.2% of reported portfolio
Original SEC filing ↗
-6.2% vs SPY
63 sessions after disclosure
direction supported so far
Q1 2026
filed May 15, 2026
45d lag
TRIM-61.8%
Viking Global Investors · 1.9% of reported portfolio
Original SEC filing ↗
-6.2% vs SPY
63 sessions after disclosure
direction supported so far
Q1 2026
filed May 15, 2026
45d lag
EXITEXIT
Warren Buffett · 0.2% of reported portfolio
Original SEC filing ↗
-6.2% vs SPY
63 sessions after disclosure
direction supported so far
Q1 2026
filed May 14, 2026
44d lag
ADD+57.5%
Dennis Hong · 14.5% of reported portfolio
Original SEC filing ↗
-5.9% vs SPY
63 sessions after disclosure
direction not supported so far
Q1 2026
filed May 14, 2026
44d lag
ADD+47.0%
Seth Klarman · 12.7% of reported portfolio
Original SEC filing ↗
-5.9% vs SPY
63 sessions after disclosure
direction not supported so far
Q1 2026
filed May 14, 2026
44d lag
TRIM-55.0%
Polen Capital Management · 8.5% of reported portfolio
Original SEC filing ↗
-5.9% vs SPY
63 sessions after disclosure
direction supported so far
Q1 2026
filed May 13, 2026
43d lag
TRIM-59.9%
John Armitage · 14.8% of reported portfolio
Original SEC filing ↗
-5.0% vs SPY
63 sessions after disclosure
direction supported so far
Q1 2026
filed May 7, 2026
37d lag
NEWNEW
Harry Burn · 2.6% of reported portfolio
Original SEC filing ↗
-4.4% vs SPY
63 sessions after disclosure
direction not supported so far
Q1 2026
filed Apr 21, 2026
21d lag
ADD+44.0%
Robert Olstein · 0.8% of reported portfolio
Original SEC filing ↗
-9.5% vs SPY
63 sessions after disclosure
direction not supported so far
Q4 2025
filed Feb 17, 2026
48d lag
ADD+65.0%
Bill Ackman · 14.3% of reported portfolio
Original SEC filing ↗
+21.4% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2025
filed Feb 17, 2026
48d lag
TRIM-22.9%
Daniel Loeb · 7.4% of reported portfolio
Original SEC filing ↗
+21.4% vs SPY
63 sessions after disclosure
direction not supported so far
Q4 2025
filed Feb 17, 2026
48d lag
ADD+68.8%
Stanley Druckenmiller · 4.0% of reported portfolio
Original SEC filing ↗
+21.4% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2025
filed Feb 17, 2026
48d lag
NEWNEW
David Rolfe · 2.5% of reported portfolio
Original SEC filing ↗
+21.4% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2025
filed Feb 17, 2026
48d lag
ADD+336.2%
Joel Greenblatt · 2.2% of reported portfolio
Original SEC filing ↗
+21.4% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2025
filed Feb 17, 2026
48d lag
NEWNEW
Viking Global Investors · 1.9% of reported portfolio
Original SEC filing ↗
+21.4% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2025
filed Feb 17, 2026
48d lag
TRIM-77.2%
Warren Buffett · 0.8% of reported portfolio
Original SEC filing ↗
+21.4% vs SPY
63 sessions after disclosure
direction not supported so far
Q4 2025
filed Feb 13, 2026
44d lag
NEWNEW
Seth Klarman · 9.3% of reported portfolio
Original SEC filing ↗
+22.8% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2025
filed Feb 13, 2026
44d lag
NEWNEW
Dennis Hong · 5.1% of reported portfolio
Original SEC filing ↗
+22.8% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2025
filed Feb 12, 2026
43d lag
TRIM-23.1%
Polen Capital Management · 8.0% of reported portfolio
Original SEC filing ↗
+24.4% vs SPY
63 sessions after disclosure
direction not supported so far
Q4 2025
filed Feb 11, 2026
42d lag
ADD+45.4%
John Armitage · 14.8% of reported portfolio
Original SEC filing ↗
+26.1% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2025
filed Feb 11, 2026
42d lag
NEWNEW
Jensen Investment Management · 4.1% of reported portfolio
Original SEC filing ↗
+26.1% vs SPY
63 sessions after disclosure
direction supported so far
Q3 2025
filed Nov 14, 2025
45d lag
ADD+20.4%
AltaRock Partners · 30.3% of reported portfolio
Original SEC filing ↗
-15.5% vs SPY
63 sessions after disclosure
direction not supported so far
Q3 2025
filed Nov 14, 2025
45d lag
TRIM-44.1%
Stephen Mandel · 8.0% of reported portfolio
Original SEC filing ↗
-15.5% vs SPY
63 sessions after disclosure
direction supported so far
Q3 2025
filed Nov 14, 2025
45d lag
EXITEXIT
Viking Global Investors · 2.5% of reported portfolio
Original SEC filing ↗
-15.5% vs SPY
63 sessions after disclosure
direction supported so far
Q3 2025
filed Nov 14, 2025
45d lag
NEWNEW
Stanley Druckenmiller · 2.4% of reported portfolio
Original SEC filing ↗
-15.5% vs SPY
63 sessions after disclosure
direction not supported so far
Q3 2025
filed Nov 14, 2025
45d lag
TRIM-39.3%
Joel Greenblatt · 1.0% of reported portfolio
Original SEC filing ↗
-15.5% vs SPY
63 sessions after disclosure
direction supported so far
Q3 2025
filed Nov 13, 2025
44d lag
ADD+23.8%
AKO Capital · 5.6% of reported portfolio
Original SEC filing ↗
-16.2% vs SPY
63 sessions after disclosure
direction not supported so far
Q3 2025
filed Nov 12, 2025
43d lag
ADD+21.4%
John Armitage · 9.4% of reported portfolio
Original SEC filing ↗
-18.1% vs SPY
63 sessions after disclosure
direction not supported so far
Q3 2025
filed Oct 21, 2025
21d lag
NEWNEW
Robert Olstein · 0.5% of reported portfolio
Original SEC filing ↗
+4.0% vs SPY
63 sessions after disclosure
direction supported so far
Q2 2025
filed Aug 15, 2025
46d lag
EXITEXIT
Stanley Druckenmiller · 0.9% of reported portfolio
Original SEC filing ↗
-2.1% vs SPY
63 sessions after disclosure
direction supported so far
Q2 2025
filed Aug 14, 2025
45d lag
ADD+20.6%
AltaRock Partners · 25.1% of reported portfolio
Original SEC filing ↗
-0.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q2 2025
filed Aug 14, 2025
45d lag
ADD+587.7%
Jeffrey Ubben et al · 15.2% of reported portfolio
Original SEC filing ↗
-0.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q2 2025
filed Aug 14, 2025
45d lag
NEWNEW
Bill Ackman · 9.3% of reported portfolio
Original SEC filing ↗
-0.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q2 2025
filed Aug 14, 2025
45d lag
ADD+62.2%
Chase Coleman · 6.9% of reported portfolio
Original SEC filing ↗
-0.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q2 2025
filed Aug 14, 2025
45d lag
ADD+43.2%
Viking Global Investors · 2.5% of reported portfolio
Original SEC filing ↗
-0.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q2 2025
filed Aug 14, 2025
45d lag
ADD+110.8%
Bill Nygren · 1.7% of reported portfolio
Original SEC filing ↗
-0.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q2 2025
filed Aug 14, 2025
45d lag
ADD+157.7%
Joel Greenblatt · 1.0% of reported portfolio
Original SEC filing ↗
-0.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q2 2025
filed Aug 13, 2025
44d lag
TRIM-21.6%
Polen Capital Management · 10.6% of reported portfolio
Original SEC filing ↗
+1.6% vs SPY
63 sessions after disclosure
direction not supported so far
Q2 2025
filed Aug 12, 2025
43d lag
TRIM-20.9%
John Armitage · 9.3% of reported portfolio
Original SEC filing ↗
+4.7% vs SPY
63 sessions after disclosure
direction not supported so far
Q1 2025
filed May 15, 2025
45d lag
TRIM-31.9%
Daniel Loeb · 10.2% of reported portfolio
Original SEC filing ↗
+3.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q1 2025
filed May 15, 2025
45d lag
EXITEXIT
Hillman Capital Management · 4.0% of reported portfolio
Original SEC filing ↗
+3.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q1 2025
filed May 15, 2025
45d lag
TRIM-58.4%
Stanley Druckenmiller · 2.0% of reported portfolio
Original SEC filing ↗
+3.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q1 2025
filed May 15, 2025
45d lag
TRIM-30.9%
Bill Nygren · 0.9% of reported portfolio
Original SEC filing ↗
+3.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q1 2025
filed May 15, 2025
45d lag
TRIM-43.5%
Joel Greenblatt · 0.7% of reported portfolio
Original SEC filing ↗
+3.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q1 2025
filed May 6, 2025
36d lag
ADD+75.3%
John Armitage · 9.3% of reported portfolio
Original SEC filing ↗
+4.7% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2024
filed Feb 14, 2025
45d lag
TRIM-30.9%
Stephen Mandel · 7.6% of reported portfolio
Original SEC filing ↗
-6.8% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2024
filed Feb 14, 2025
45d lag
TRIM-35.5%
Viking Global Investors · 2.8% of reported portfolio
Original SEC filing ↗
-6.8% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2024
filed Feb 14, 2025
45d lag
NEWNEW
Jeffrey Ubben et al · 2.7% of reported portfolio
Original SEC filing ↗
-6.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q4 2024
filed Feb 14, 2025
45d lag
NEWNEW
Stanley Druckenmiller · 2.0% of reported portfolio
Original SEC filing ↗
-6.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q4 2024
filed Feb 14, 2025
45d lag
ADD+683.6%
Joel Greenblatt · 0.7% of reported portfolio
Original SEC filing ↗
-6.8% vs SPY
63 sessions after disclosure
direction not supported so far
Q4 2024
filed Feb 10, 2025
41d lag
TRIM-24.1%
Polen Capital Management · 12.4% of reported portfolio
Original SEC filing ↗
-7.0% vs SPY
63 sessions after disclosure
direction supported so far
Q4 2024
filed Feb 10, 2025
41d lag
TRIM-21.5%
John Armitage · 5.8% of reported portfolio
Original SEC filing ↗
-7.0% vs SPY
63 sessions after disclosure
direction supported so far
Q3 2024
filed Nov 14, 2024
45d lag
TRIM-22.6%
Josh Tarasoff · 25.5% of reported portfolio
Original SEC filing ↗
+6.9% vs SPY
63 sessions after disclosure
direction not supported so far
Q3 2024
filed Nov 14, 2024
45d lag
TRIM-27.4%
Daniel Loeb · 11.3% of reported portfolio
Original SEC filing ↗
+6.9% vs SPY
63 sessions after disclosure
direction not supported so far
Q3 2024
filed Nov 14, 2024
45d lag
ADD+23.2%
Stephen Mandel · 7.6% of reported portfolio
Original SEC filing ↗
+6.9% vs SPY
63 sessions after disclosure
direction supported so far
Q3 2024
filed Nov 14, 2024
45d lag
TRIM-56.4%
Viking Global Investors · 6.9% of reported portfolio
Original SEC filing ↗
+6.9% vs SPY
63 sessions after disclosure
direction not supported so far
Q3 2024
filed Nov 14, 2024
45d lag
TRIM-93.9%
Joel Greenblatt · 1.5% of reported portfolio
Original SEC filing ↗
+6.9% vs SPY
63 sessions after disclosure
direction not supported so far
Q3 2024
filed Nov 13, 2024
44d lag
ADD+30.8%
AltaRock Partners · 19.8% of reported portfolio
Original SEC filing ↗
+3.8% vs SPY
63 sessions after disclosure
direction supported so far
Q3 2024
filed Nov 13, 2024
44d lag
ADD+58.8%
AKO Capital · 3.6% of reported portfolio
Original SEC filing ↗
+3.8% vs SPY
63 sessions after disclosure
direction supported so far
Q3 2024
filed Nov 8, 2024
39d lag
TRIM-29.0%
Christopher Davis · 6.4% of reported portfolio
Original SEC filing ↗
+9.6% vs SPY
63 sessions after disclosure
direction not supported so far
Q3 2024
filed Nov 5, 2024
36d lag
TRIM-21.2%
John Armitage · 7.6% of reported portfolio
Original SEC filing ↗
+8.7% vs SPY
63 sessions after disclosure
direction not supported so far

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Material means a new or exited position, or at least a 20% share-count change, with at least 0.5% portfolio weight or $100 million reported value. Share counts are adjusted for confirmed splits. Outcomes start after disclosure, not at an invented trade date, and are not manager returns.