Affiliated Managers Group, Inc. (AMG) SEC filings

AMG SEC filings moved a median of -0.18% by the close. AMG SEC filings — 10-K, 10-Q, 8-K and the rest — each read against the price at its own news timestamp. Back to the AMG overview →

80 measured AMG SEC filing events.

Where these AMG SEC filings landedvs 79 measured AMG SEC filing reactions
AMG SEC filingMiddle 50% · -0.69% to +0.64%Zero: 0.00%Median: -0.18%Median -0.18%-1.00%0+1.00%
Middle 50% of AMG SEC filing reactions-0.69% to +0.64%
Median reaction (to close)-0.18%
Measured reactions79
Point-in-time · zero look-ahead

Half of the 79 AMG SEC filing events with a measured close landed between -0.69% and +0.64%; 42% closed up.

DateHeadlineEvent5-minTo close
Form N-PX AFFILIATED MANAGERS GROU For: Jun 30SEC filing · Form N-PX-0.30%-0.72%
Form 13F-NT AFFILIATED MANAGERS GROU For: Jun 30SEC filing · Form 13F-NT+0.37%+2.68%
Form 10-Q AFFILIATED MANAGERS GROU For: Jun 30SEC filing · Form 10-Q+0.47%—
Form 8-K AFFILIATED MANAGERS GROU For: Jul 30SEC filing · Form 8-K-1.17%+0.48%
Form 8-K AFFILIATED MANAGERS GROU For: Jun 09SEC filing · Form 8-K-0.62%-1.20%
Form 8-K AFFILIATED MANAGERS GROU For: May 27SEC filing · Form 8-K+0.02%-0.10%
Form 13F-NT AFFILIATED MANAGERS GROU For: Mar 31SEC filing · Form 13F-NT-1.19%-1.94%
Form 10-Q AFFILIATED MANAGERS GROU For: Mar 31SEC filing · Form 10-Q-1.05%+1.18%
Form 8-K AFFILIATED MANAGERS GROU For: May 01SEC filing · Form 8-K+1.06%-5.42%
Form ARS AFFILIATED MANAGERS GROU For: Dec 31SEC filing · Form ARS+0.84%+2.26%
Form DEF 14A AFFILIATED MANAGERS GROU For: May 27SEC filing · Form DEF+0.84%+2.26%
Form DEFA14A AFFILIATED MANAGERS GROUSEC filing · Form DEFA14A+0.84%+2.26%
Form 8-K AFFILIATED MANAGERS GROU For: Feb 22SEC filing · Form 8-K-0.83%-0.45%
Form 10-K AFFILIATED MANAGERS GROU For: Dec 31SEC filing · Form 10-K-0.81%+2.10%
Form 13F-NT AFFILIATED MANAGERS GROU For: Dec 31SEC filing · Form 13F-NT-0.73%-2.69%
Form 8-K AFFILIATED MANAGERS GROU For: Feb 10SEC filing · Form 8-K+4.87%+6.77%
Form 8-K AFFILIATED MANAGERS GROU For: Feb 12SEC filing · Form 8-K+4.87%+6.77%
Form 8-K AFFILIATED MANAGERS GROU For: Dec 08SEC filing · Form 8-K-0.30%-1.62%
Form 8-K AFFILIATED MANAGERS GROU For: Dec 08SEC filing · Form 8-K+0.61%+0.00%
Form 10-Q AFFILIATED MANAGERS GROU For: Sep 30SEC filing · Form 10-Q+0.00%+0.45%
Form 8-K AFFILIATED MANAGERS GROU For: Nov 03SEC filing · Form 8-K+0.93%+3.49%
Form N-PX AFFILIATED MANAGERS GROU For: Jun 30SEC filing · Form N-PX-2.04%-0.28%
Form 8-K AFFILIATED MANAGERS GROU For: Aug 11SEC filing · Form 8-K-0.72%-1.66%
Form 13F-NT AFFILIATED MANAGERS GROU For: Jun 30SEC filing · Form 13F-NT+0.00%+0.63%
Form 10-Q AFFILIATED MANAGERS GROU For: Jun 30SEC filing · Form 10-Q+0.02%+0.20%
Form 8-K AFFILIATED MANAGERS GROU For: Jul 31SEC filing · Form 8-K+1.43%-0.29%
Form 8-K AFFILIATED MANAGERS GROU For: Jun 03SEC filing · Form 8-K+0.00%-0.26%
Form 8-K AFFILIATED MANAGERS GROU For: May 22SEC filing · Form 8-K+0.20%+0.45%
Form 13F-NT AFFILIATED MANAGERS GROU For: Mar 31SEC filing · Form 13F-NT-0.07%-0.50%
Form 10-Q AFFILIATED MANAGERS GROU For: Mar 31SEC filing · Form 10-Q-0.41%-1.86%
Form 8-K AFFILIATED MANAGERS GROU For: May 08SEC filing · Form 8-K+0.08%-2.59%
Form ARS AFFILIATED MANAGERS GROU For: Dec 31SEC filing · Form ARS-0.81%-1.99%
Form DEF 14A AFFILIATED MANAGERS GROU For: May 22SEC filing · Form DEF-0.81%-1.99%
Form DEFA14A AFFILIATED MANAGERS GROUSEC filing · Form DEFA14A-0.81%-1.99%
Form 8-K AFFILIATED MANAGERS GROU For: Mar 07SEC filing · Form 8-K-0.13%-1.16%
Form S-3ASR AFFILIATED MANAGERS GROUSEC filing · Form S-3ASR+0.25%-2.45%
Form 10-K AFFILIATED MANAGERS GROU For: Dec 31SEC filing · Form 10-K+0.00%+0.77%
Form 13F-NT AFFILIATED MANAGERS GROU For: Dec 31SEC filing · Form 13F-NT+0.00%+0.72%
Form 8-K AFFILIATED MANAGERS GROU For: Feb 06SEC filing · Form 8-K-3.50%-0.55%
Form 8-K AFFILIATED MANAGERS GROU For: Jan 30SEC filing · Form 8-K-0.28%-0.48%
Form 8-K AFFILIATED MANAGERS GROU For: Nov 15SEC filing · Form 8-K+0.00%-0.09%
Form 13F-NT AFFILIATED MANAGERS GROU For: Sep 30SEC filing · Form 13F-NT-0.43%-0.04%
Form 10-Q AFFILIATED MANAGERS GROU For: Sep 30SEC filing · Form 10-Q-1.07%+0.82%
Form 8-K AFFILIATED MANAGERS GROU For: Nov 04SEC filing · Form 8-K-4.37%-3.80%
Form NPORT-P THIRD AVENUE TRUST For: Jul 31SEC filing · Form NPORT-P+0.17%-0.12%
Form N-PX AFFILIATED MANAGERS GROU For: Jun 30SEC filing · Form N-PX+0.00%-0.69%
Form N-PX THIRD AVENUE TRUST For: Jun 30SEC filing · Form N-PX+0.35%-0.56%
Form 8-K AFFILIATED MANAGERS GROU For: Aug 15SEC filing · Form 8-K-0.32%+0.98%
Form 13F-NT AFFILIATED MANAGERS GROU For: Jun 30SEC filing · Form 13F-NT+0.00%-0.42%
Form 10-Q AFFILIATED MANAGERS GROU For: Jun 30SEC filing · Form 10-Q+0.76%-0.18%
Form 8-K AFFILIATED MANAGERS GROU For: Aug 02SEC filing · Form 8-K+0.76%-0.18%
Form 8-K AFFILIATED MANAGERS GROU For: Jul 29SEC filing · Form 8-K+0.99%+3.90%
Form N-CSRS THIRD AVENUE TRUST For: Apr 30SEC filing · Form N-CSRS-0.35%+0.63%
Form NPORT-P THIRD AVENUE TRUST For: Apr 30SEC filing · Form NPORT-P-0.18%+0.98%
Form 497 THIRD AVENUE TRUSTSEC filing · Form 497-0.07%+0.43%
Form 8-K AFFILIATED MANAGERS GROU For: May 22SEC filing · Form 8-K+0.12%-0.45%
Form 13F-NT AFFILIATED MANAGERS GROU For: Mar 31SEC filing · Form 13F-NT+0.00%+0.08%
Form 10-Q AFFILIATED MANAGERS GROU For: Mar 31SEC filing · Form 10-Q+0.00%+1.10%
Form 8-K AFFILIATED MANAGERS GROU For: May 06SEC filing · Form 8-K+0.91%-0.41%
Form ARS AFFILIATED MANAGERS GROU For: Dec 31SEC filing · Form ARS+0.00%-1.30%
Form DEF 14A AFFILIATED MANAGERS GROU For: May 22SEC filing · Form DEF+0.00%-1.30%
Form DEFA14A AFFILIATED MANAGERS GROUSEC filing · Form DEFA14A+0.00%-1.30%
Form 8-K AFFILIATED MANAGERS GROU For: Mar 22SEC filing · Form 8-K+0.02%-0.17%
Form CERT AFFILIATED MANAGERS GROUSEC filing · Form CERT+0.00%-0.28%
Form NPORT-P THIRD AVENUE TRUST For: Jan 31SEC filing · Form NPORT-P+0.08%-0.69%
Form 8-A12B AFFILIATED MANAGERS GROUSEC filing · Form 8-A12B+0.00%+0.44%
Form 8-K AFFILIATED MANAGERS GROU For: Mar 14SEC filing · Form 8-K+0.00%+0.44%
Form 497J THIRD AVENUE TRUSTSEC filing · Form 497J—-0.23%
Form 497K THIRD AVENUE TRUSTSEC filing · Form 497K+0.01%+0.17%
Form 485BPOS THIRD AVENUE TRUSTSEC filing · Form 485BPOS-0.15%-0.35%
Form 10-K AFFILIATED MANAGERS GROU For: Dec 31SEC filing · Form 10-K+1.02%+0.64%
Form 13F-NT AFFILIATED MANAGERS GROU For: Dec 31SEC filing · Form 13F-NT+0.00%+0.36%
Form 8-K AFFILIATED MANAGERS GROU For: Feb 05SEC filing · Form 8-K+0.59%+0.91%
Form 24F-2NT THIRD AVENUE TRUST For: Oct 31SEC filing · Form 24F-2NT-0.20%-0.16%
Form N-CEN THIRD AVENUE TRUST For: Oct 31SEC filing · Form N-CEN+0.10%-0.47%
Form N-CSR THIRD AVENUE TRUST For: Oct 31SEC filing · Form N-CSR-0.71%-0.44%
Form NPORT-P THIRD AVENUE TRUST For: Oct 31SEC filing · Form NPORT-P+0.35%+0.91%
Form 13F-NT AFFILIATED MANAGERS GROU For: Sep 30SEC filing · Form 13F-NT+0.00%+0.91%
Form 10-Q AFFILIATED MANAGERS GROU For: Sep 30SEC filing · Form 10-Q-0.23%-0.18%
Form 8-K AFFILIATED MANAGERS GROU For: Nov 06SEC filing · Form 8-K-2.70%-5.18%
That’s how AMG usually reacts to SEC filings — get an email when it moves on news →
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Other Financial Services names and their SEC filings

Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not. These are each name’s all-news baseline, not its SEC filings — that is what the link opens.